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Optimization of the Pretreatment of the Mixture of Cassava Peelings and Pineapple Fibers Using Response Surface Methodology and a Process Simulator for the Bioethanol Production
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作者 Paul Nestor Djomou Djonga George Elambo Nkeng +2 位作者 Madjoyogo Hervé Sirma Ahmat Tom Thierry Tchamba Tchuidjang 《Energy and Power Engineering》 2024年第2期79-96,共18页
The increase in oil prices and greenhouse gas emissions has led to the search for substitutes for fossil fuels. In Cameroon, the abundance of lignocellulosic resources is inherent to agricultural activity. Production ... The increase in oil prices and greenhouse gas emissions has led to the search for substitutes for fossil fuels. In Cameroon, the abundance of lignocellulosic resources is inherent to agricultural activity. Production of bioethanol remains a challenge given the crystallinity of cellulose and the presence of the complex. The pretreatment aimed to solubilize the lignin fraction and to make cellulose more accessible to the hydrolytic enzymes, was done using the organosolv process. A mathematical modeling was performed to point out the effect of the temperature on the kinetics of the release of the reducing sugars during the pretreatment. Two mathematical model was used, SAEMAN’s model and Response surface methodology. The first show that the kinetic parameters of the hydrolysis of the cellulose and reducing sugar are: 0.05089 min<sup>-1</sup>, 5358.1461 J·mol<sup>-1</sup>, 1383.03691 min<sup>-1</sup>, 51577.6100 J·mol<sup>-1</sup> respectively. The second model was used. Temperature is the factor having the most positive influence whereas, ethanol concentration is not an essential factor. To release the maximum, an organosolv pre-treatment of this sub-strate should be carried out at 209.08°C for 47.60 min with an ethanol-water ratio of 24.02%. Organosolv pre-treatment is an effective process for delignification of the lignocellulosic structure. 展开更多
关键词 BIOETHANOL Cassava Peeling pineapple fibers Organosolv Process and Optimization
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Strigolactones modulate cotton fiber elongation and secondary cell wall thickening 被引量:2
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作者 Yunze Wen Peng He +3 位作者 Xiaohan Bai Huizhi Zhang Yunfeng Zhang Jianing Yu 《Journal of Integrative Agriculture》 SCIE CAS CSCD 2024年第6期1850-1863,共14页
Cotton is one of the most important economic crops in the world,and it is a major source of fiber in the textile industry.Strigolactones(SLs)are a class of carotenoid-derived plant hormones involved in many processes ... Cotton is one of the most important economic crops in the world,and it is a major source of fiber in the textile industry.Strigolactones(SLs)are a class of carotenoid-derived plant hormones involved in many processes of plant growth and development,although the functions of SL in fiber development remain largely unknown.Here,we found that the endogenous SLs were significantly higher in fibers at 20 days post-anthesis(DPA).Exogenous SLs significantly increased fiber length and cell wall thickness.Furthermore,we cloned three key SL biosynthetic genes,namely GhD27,GhMAX3,and GhMAX4,which were highly expressed in fibers,and subcellular localization analyses revealed that GhD27,GhMAX3,and GhMAX4 were localized in the chloroplast.The exogenous expression of GhD27,GhMAX3,and GhMAX4 complemented the physiological phenotypes of d27,max3,and max4 mutations in Arabidopsis,respectively.Knockdown of GhD27,GhMAX3,and GhMAX4 in cotton resulted in increased numbers of axillary buds and leaves,reduced fiber length,and significantly reduced fiber thickness.These findings revealed that SLs participate in plant growth,fiber elongation,and secondary cell wall formation in cotton.These results provide new and effective genetic resources for improving cotton fiber yield and plant architecture. 展开更多
关键词 STRIGOLACTONES fiber elongation secondary cell wall thickening cotton
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Genetic dissection and origin of pleiotropic loci underlying multilevel fiber quality traits in upland cotton(Gossypium hirsutum L.) 被引量:1
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作者 Hongge Li Shurong Tang +7 位作者 Zhen Peng Guoyong Fu Yinhua Jia Shoujun Wei Baojun Chen Muhammad Shahid Iqbal Shoupu He Xiongming Du 《Journal of Integrative Agriculture》 SCIE CAS CSCD 2024年第10期3250-3263,共14页
Cotton fiber quality is a persistent concern that determines planting benefits and the quality of finished textile products.However,the limitations of measurement instruments have hindered the accurate evaluation of s... Cotton fiber quality is a persistent concern that determines planting benefits and the quality of finished textile products.However,the limitations of measurement instruments have hindered the accurate evaluation of some important fiber characteristics such as fiber maturity,fineness,and neps,which in turn has impeded the genetic improvement and industrial utilization of cotton fiber.Here,12 single fiber quality traits were measured using Advanced Fiber Information System(AFIS)equipment among 383 accessions of upland cotton(Gossypium hirsutum L.).In addition,eight conventional fiber quality traits were assessed by the High Volume Instrument(HVI)System.Genome-wide association study(GWAS),linkage disequilibrium(LD)block genotyping and functional identification were conducted sequentially to uncover the associated elite loci and candidate genes of fiber quality traits.As a result,the previously reported pleiotropic locus FL_D11 regulating fiber length-related traits was identified in this study.More importantly,three novel pleiotropic loci(FM_A03,FF_A05,and FN_A07)regulating fiber maturity,fineness and neps,respectively,were detected based on AFIS traits.Numerous highly promising candidate genes were screened out by integrating RNA-seq and qRT-PCR analyses,including the reported GhKRP6 for fiber length,the newly identified GhMAP8 for maturity and GhDFR for fineness.The origin and evolutionary analysis of pleiotropic loci indicated that the selection pressure on FL_D11,FM_A03 and FF_A05 increased as the breeding period approached the present and the origins of FM_A03 and FF_A05 were traced back to cotton landraces.These findings reveal the genetic basis underlying fiber quality and provide insight into the genetic improvement and textile utilization of fiber in G.hirsutum. 展开更多
关键词 upland cotton single fiber quality pleiotropic loci candidate genes locus origin
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The DUF579 proteins GhIRX15s regulate cotton fiber development by interacting with proteins involved in xylan synthesis
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作者 Mengyun Li Feng Chen +6 位作者 Jingwen Luo Yanan Gao Jinglong Cai Wei Zeng Monika S.Doblin Gengqing Huang Wenliang Xu 《The Crop Journal》 SCIE CSCD 2024年第4期1112-1125,共14页
Cotton provides the most abundant natural fiber for the textile industry.The mature cotton fiber largely consists of secondary cell walls with the highest proportion of cellulose and a small amount of hemicellulose an... Cotton provides the most abundant natural fiber for the textile industry.The mature cotton fiber largely consists of secondary cell walls with the highest proportion of cellulose and a small amount of hemicellulose and lignin.To dissect the roles of hemicellulosic polysaccharides during fiber development,four IRREGULAR XYLEM 15(IRX15)genes,GhIRX15-1/-2/-3/-4,were functionally characterized in cotton.These genes encode DUF579 domain-containing proteins,which are homologs of AtIRX15 involved in xylan biosynthesis.The four GhIRX15 genes were predominantly expressed during fiber secondary wall thickening,and the encoded proteins were localized to the Golgi apparatus.Each GhIRX15 gene could restore the xylan deficient phenotype in the Arabidopsis irx15irx15l double mutant.Silencing of GhIRX15s in cotton resulted in shorter mature fibers with a thinner cell wall and reduced cellulose content as compared to the wild type.Intriguingly,GhIRX15-2 and GhIRX15-4 formed homodimers and heterodimers.In addition,the GhIRX15s showed physical interaction with glycosyltransferases GhGT43C,GhGT47A and GhGT47B,which are responsible for synthesis of the xylan backbone and reducing end sequence.Moreover,the GhIRX15s can form heterocomplexes with enzymes involved in xylan modification and side chain synthesis,such as GhGUX1/2,GhGXM1/2 and GhTBL1.These findings suggest that GhIRX15s participate in fiber xylan biosynthesis and modulate fiber development via forming large multiprotein complexes. 展开更多
关键词 cotton fiber Xylan biosynthesis GhIRX15s Protein-protein interaction Protein complexes
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Identification of new cotton fiber-quality QTL by multiple genomic analyses and development of markers for genomic breeding
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作者 Haozhe Tan Binghui Tang +10 位作者 Mengling Sun Qiulu Yin Yizan Ma Jianying Li Pengcheng Wang Zhonghua Li Guannan Zhao Maojun Wang Xianlong Zhang Chunyuan You Lili Tu 《The Crop Journal》 SCIE CSCD 2024年第3期866-879,共14页
Cotton fiber is one of the main raw materials for the textile industry.In recent years,many cotton fiber quality QTL have been identified,but few were applied in breeding.In this study,a genome wide association study(... Cotton fiber is one of the main raw materials for the textile industry.In recent years,many cotton fiber quality QTL have been identified,but few were applied in breeding.In this study,a genome wide association study(GWAS)of fiber-quality traits in 265 upland cotton breeding intermediate lines(GhBreeding),combined with genome-wide selective sweep analysis(GSSA)and genomic selection(GS),revealed 25 QTL.Most of these QTL were ignored by only using GWAS.The CRISPR/Cas9 mutants of GhMYB_D13 had shorter fiber,which indicates the credibility of QTL to a certain extent.Then these QTL were verified in other cotton natural populations,5 stable QTL were found having broad potential for application in breeding.Additionally,among these 5 stable QTL,superior genotypes of 4 showed an enrichment in most improved new varieties widely cultivated currently.These findings provide insights for how to identify more QTL through combined multiple genomic analysis to apply in breeding. 展开更多
关键词 cotton fiber quality breeding GWAS Genome-wide selective sweep analysis Genomic selection InDel markers
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Exogenous application of bio-stimulants and growth retardants improve nutrient absorption and fiber quality in upland cotton
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作者 Al-Khayri Jameel M. Arif Muhammad +6 位作者 Kareem Shadia Hama Salih Anwar Adeel Dehghanisanij Hossein Emami Somayeh Yasmeen Azra Aftab Komal Negm Mohamed 《Journal of Cotton Research》 CAS 2024年第2期137-147,共11页
Background Natural and synthetic plant growth regulators are essential for plant health,likewise these regulators also play a role in increasing organic production productivity and improving quality and yield stabilit... Background Natural and synthetic plant growth regulators are essential for plant health,likewise these regulators also play a role in increasing organic production productivity and improving quality and yield stability.In the present study,we have evaluated the effects of foliar applied plant growth regulators,i.e.,moringa leaf extract(MLE)and mepiquat chloride(MC)alone and in combination MC and MLE on the conventional cotton cultivar(CIM 573)and transgenic one(CIM 598).The growth regulators were applied at the start of bloom,45 and 90 days after blooming.Results The application of MC and MLE at 90 days after blooming significantly improved the relative growth rate,net assimilation rate,the number of bolls per plant,and seed cotton yield.Likewise,the combined application of MLE and MC at 90 days after blooming significantly boosted the nitrogen uptake in locules,as well as the phosphorus and potassium uptake in the leaves of both cotton cultivars.The application of MLE alone has considerably improved the nitrogen uptake in leaves,and phosphorus and potassium contents in locules of Bt and conventional cotton cultivars.Similarly,Bt cotton treated with MLE at 90 days after blooming produced significantly higher ginning out turn and oil contents.Treatment in combination(MLE+MC)at 90 days after blooming produced considerably higher micronaire value,fiber strength,and staple length in conventional cultivar.Conclusion The natural growth enhancer,MLE is a rich source of minerals and zeatin,improving the nutrient absorption and quality of cotton fiber in both conventional and Bt cotton cultivars. 展开更多
关键词 Bio-stimulant cotton fiber quality Mepiquat chloride Moringa leaf extract Potassium accumulation Oil contents
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GhWDL3 is involved in the formation and development of fiber cell morphology in upland cotton(Gossypium hirsutum L.)
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作者 CHEN Baojun TIAN Zailong +9 位作者 FU Guoyong ZHANG Ai SUN Yaru WANG Jingjing PAN Zhaoe LI Hongge HU Daowu XIA Yingying HE Shoupu DU Xiongming 《Journal of Cotton Research》 CAS 2024年第1期58-68,共11页
Background Cotton fiber is a model tissue for studying microtubule-associated proteins(MAPs).The Xklp2(TPX2)proteins that belong to the novel MAPs member mainly participate in the formation and development of microtub... Background Cotton fiber is a model tissue for studying microtubule-associated proteins(MAPs).The Xklp2(TPX2)proteins that belong to the novel MAPs member mainly participate in the formation and development of microtubule(MT).However,there is a lack of studies concerning the systematic characterization of the TPX2 genes family in cotton.Therefore,the identification and portrayal of G.hirsutum TPX2 genes can provide key targets for molecular manipula-tion in the breeding of cotton fiber improvement.Result In this study,TPX2 family genes were classified into two distinct subclasses TPXLs and MAP genes WAVE DAMP-ENED2-LIKE(WDLs)and quite conservative in quantity.GhWDL3 was significantly up-regulated in 15 days post anthe-sis fibers of ZRI-015(an upland cotton with longer and stronger fiber).GhWDL3 promotes all stem hairs to become straight when overexpressed in Arabidopsis,which may indirectly regulate cotton fiber cell morphology during fiber development.Virus induced gene silencing(VIGS)results showed that GhWDL3 inhibited fiber cell elongation at fiber development periods through regulating the expression of cell wall related genes.Conclusion These results reveal that GhWDL3 regulated cotton fiber cell elongation and provide crucial information for the further investigation in the regulatory mechanisms/networks of cotton fiber length. 展开更多
关键词 Upland cotton GhWDL3 fiber length TPX2 CYTOSKELETON Microtubule-associated proteins(MAPs)
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Combining ability of Egyptian cotton(Gossypium barbadense L.)reveals genetic potential for improved yield and fiber quality
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作者 Abdelghany Ahmed M. El-Banna Aly A.A. +5 位作者 Lamlom Sobhi F El-Sorady Gawhara A. Salama Ehab A.A. Ren Honglei Shaibu Abdulwahab S. Yehia Waleed M.B. 《Journal of Cotton Research》 CAS 2024年第2期109-122,共14页
Background As the most widely cultivated fiber crop,cotton production depends on hybridization to unlock the yield potential of current varieties.A deep understanding of genetic dissection is crucial for the cultivati... Background As the most widely cultivated fiber crop,cotton production depends on hybridization to unlock the yield potential of current varieties.A deep understanding of genetic dissection is crucial for the cultivation of enhanced hybrid plants with desired traits,such as high yield and fine fiber quality.In this study,the general combining ability(GCA)and specific combining ability(SCA)of yield and fiber quality of nine cotton parents(six lines and three testers)and eighteen F1 crosses produced using a line×tester mating design were analyzed.Results The results revealed significant effects of genotypes,parents,crosses,and interactions between parents and crosses for most of the studied traits.Moreover,the effects of both additive and non-additive gene actions played a notably significant role in the inheritance of most of the yield and fiber quality attributes.The F1 hybrids of(Giza 90×Aust)×Giza 86,Uzbekistan 1×Giza 97,and Giza 96×Giza 97 demonstrated superior performance due to their favorable integration of high yield attributes and premium fiber quality characteristics.Path analysis revealed that lint yield has the highest positive direct effect on seed cotton yield,while lint percentage showed the highest negative direct effect on seed cotton yield.Principal component analysis identified specific parents and hybrids associated with higher cotton yield,fiber quality,and other agronomic traits.Conclusion This study provides insights into identifying potential single-and three-way cross hybrids with superior cotton yield and fiber quality characteristics,laying a foundation for future research on improving fiber quality in cotton. 展开更多
关键词 Gossypium barbadense L. Combining ability Seed cotton yield fiber quality Cluster analysis Path analysis
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Comparative transcriptome and lipidome reveal that a low K^(+) signal effectively alleviates the effect induced by Ca^(2+) deficiency in cotton fibers
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作者 GUO Kai GAO Wei +11 位作者 ZHANG Tao-rui WANG Zu-ying SUN Xiao-ting YANG Peng LONG Lu LIU Xue-ying WANG Wen-wen TENG Zhong-hua LIU Da-jun LIU De-xin TU Li-li ZHANG Zheng-sheng 《Journal of Integrative Agriculture》 SCIE CAS CSCD 2023年第8期2306-2322,共17页
Calcium(Ca^(2+))plays an important role in determining plant growth and development because it maintains cell wall and membrane integrity.Therefore,understanding the role of Ca^(2+)in carbon and lipid metabolism could... Calcium(Ca^(2+))plays an important role in determining plant growth and development because it maintains cell wall and membrane integrity.Therefore,understanding the role of Ca^(2+)in carbon and lipid metabolism could provide insights into the dynamic changes in cell membranes and cell walls during the rapid elongation of cotton fibers.In the present study,we found that the lack of Ca^(2+)promoted fiber elongation and rapid ovule expansion,but it also caused tissue browning in the ovule culture system.RNA-sequencing revealed that Ca^(2+)deficiency induced cells to be highly oxidized,and the expression of genes related to carbon metabolism and lipid metabolism was activated significantly.All gene members of nine key enzymes involved in glycolysis were up-regulated,and glucose was significantly reduced in Ca^(2+)deficiency-treated tissues.Ca^(2+)deficiency adjusted the flowing of glycolysis metabolic.However,low K^(+)recovered the expression levels of glycolysis genes and glucose content caused by Ca^(2+)deficiency.Electrospray ionizationtandem mass spectrometry technology was applied to uncover the dynamic profile of lipidome under Ca^(2+)and K^(+)interacted conditions.Ca^(2+)deficiency led to the decrease of fatty acid(FA),diacylglycerol(DAG),glycolipid and the significant increase of triacylglycerol(TAG),phospholipid phosphatidylethanolamine(PE),phosphatidylglycerol(PG),and PC(phosphatidylcholine).Low K^(+)restored the contents of FA,phospholipids,and glycolipids,effectively relieved the symptoms caused by Ca^(2+)deficiency,and recovered the development of fiber cells.This study revealed dynamic changes in transcript and metabolic levels and uncovered the signaling interaction of Ca^(2+)deficiency and low K^(+)in glycolysis and lipid metabolism during fiber development. 展开更多
关键词 cotton fiber GLYCOLYSIS LIPIDOME calcium potassium
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Fabrication and Enhanced Supercapacitive Performance of Fe_(2)N@Cotton-based Porous Carbon fibers as Electrode Material
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作者 Guangzhen Zhao Ke Ning +6 位作者 Mingqi Wei Linlin Zhang Lu Han Guang Zhu Jie Yang Hongyan Wang Fei Huang 《Resources Chemicals and Materials》 2023年第4期277-287,共11页
With the emergence of supercapacitors(SCs),the creation of bio-based electrode materials has grown in significance for the advancement of energy storage.However,it is particularly difficult for cathode materials to me... With the emergence of supercapacitors(SCs),the creation of bio-based electrode materials has grown in significance for the advancement of energy storage.However,it is particularly difficult for cathode materials to meet the demands of practical uses due to their low energy density.Herein,MIL-88 was fabricated in situ on the surface of cotton fibers used in cosmetics,followed by creating Fe_(2)N@porous carbon fiber composite(Fe_(2)N@PCF)through heat treatment at various temperatures.Fe_(2)N@PCF-800 demonstrates excellent specific capacitance performance(552 F g^(-1) at 1 A g^(-1)).Meanwhile,The AC//Fe_(2)N@PCF-800 device exhibits the largest energy density of 38 Wh kg^(-1) at 800 W kg^(-1) and a long cycling stability(83.3%capacity retention after 6000 cycles).Our elaborately designed Fe_(2)N@PCF demonstrate multiple advantages:i)the Fe_(2)N@PCF-800 shows abundant mesopores,providing abundant ion-diffusion pathways for mass transport and rich graphite microstructures,improving electrical conductivity for electron transferowning;ii)the rich nitrogen dopants and Fe_(2)N structure within all carbon components increase the capacitance through their pseudocapacitive contribution.These findings highlight the importance of biomass derived carbon materials for SCs applications. 展开更多
关键词 cotton fiber Metal-organic frameworks Porous carbon fiber Fe_(2)N SUPERCAPACITORS
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Spinning System for Pineapple Leaf Fiber via Cotton Spinning System by Solo and Binary Blending and Identifying Yarn Properties
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作者 Khusniddin Ismoilov Sachin Chauhan +1 位作者 Mingxing Yang Quan Heng 《Journal of Textile Science and Technology》 2019年第4期86-91,共6页
By nature, pineapple fiber (PALF) obtained from pineapple leaf is a smooth, shiny and white natural cellulosic fiber. In current investigation of spinning technique for pineapple leaf fiber based on cotton spinning me... By nature, pineapple fiber (PALF) obtained from pineapple leaf is a smooth, shiny and white natural cellulosic fiber. In current investigation of spinning technique for pineapple leaf fiber based on cotton spinning method comparison of produced yarn properties has been reported. For one of the investigations of this study, the fibers were cut into staple length and various properties of fibers were analyzed. Data and results acquired from this illustrated that there is excellent spinnability on the fiber. Two separate researches were conducted with consideration to produce resultant yarn by spinning of PALF. Yarn derived by solo spinning technique of 100% PALF and PALF blending with polyester and cotton fibers through binary blending technique in equal proportion has been spun, then yarn count, tensile properties, yarn evenness, hairiness have been evaluated and analyzed. The results from numerical simulations analysis indicated that yarn obtained from the Pineapple leaf fiber (PALF) had great potential to be used in apparels. 展开更多
关键词 Cellulose fiber cotton SPINNING Technique SPINNABILITY Tensile Strength EVENNESS HAIRINESS pineapple Leaf fiber
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Developing Suitable Proportions for the Production of Pineapple Leaf Fibers Reinforced Normal Strength Concrete
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作者 Kayibanda Patrick Richard Ocharo Onchiri Geoffrey N. Mang’uriu 《Open Journal of Civil Engineering》 2019年第3期185-194,共10页
The present work tried to develop suitable proportions for the production of Pineapple Leaf Fibers (PALF) reinforced Normal Strength Concrete (NSC), an experimental analysis with a mix ratio of 1:1.84:3.27 for cement:... The present work tried to develop suitable proportions for the production of Pineapple Leaf Fibers (PALF) reinforced Normal Strength Concrete (NSC), an experimental analysis with a mix ratio of 1:1.84:3.27 for cement: fine aggregates: coarse aggregates with constant water to cement ratio of 0.54. The total volume per mixing batch was calculated of 9 cubes + 9 cylinders + 3 beams in order to know the number of materials to be used in casting per batch, and the PALF percentage was taken based on cement weight whereby it starts from the lowest to the maximum as follow 0%, 0.2%, 0.4%, 0.6%, 0.8%, and 1%. The tests that were done on fresh concrete were compacting factors and workability using the slump test which was carried out on each fresh mix of concrete. The results showed that PALF can be used to improve the Tensile and Flexural properties of Normal Strength Concrete. 展开更多
关键词 pineapple LEAF fibers Tensile STRENGTH COMPRESSIVE STRENGTH FLEXURAL STRENGTH and Water Absorption
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Growth, yield and fiber quality characteristics of Bt and non-Bt cotton cultivars in response to boron nutrition 被引量:1
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作者 MEHRAN Muhammad ASHRAF Muhammad +4 位作者 SHAHZAD Sher Muhammad SHAKIR Muhammad Siddique AZHAR Muhammad Tehseen AHMAD Fiaz ALVI Alamgir 《Journal of Cotton Research》 CAS 2023年第1期1-12,共12页
Background Boron(B)deficiency is an important factor for poor seed cotton yield and fiber quality.However,it is often missing in the plant nutrition program,particularly in developing countries.The current study inves... Background Boron(B)deficiency is an important factor for poor seed cotton yield and fiber quality.However,it is often missing in the plant nutrition program,particularly in developing countries.The current study investigated B’s effect on growth,yield,and fiber quality of Bt(CIM-663)and non-Bt(Cyto-124)cotton cultivars.The experimental plan consisted of twelve treatments:Control(CK);B at 1 mg·kg^(−1) soil application(SB1);2 mg·kg^(−1) B(SB2);3 mg·kg^(−1) B(SB3);0.2%B foliar spray(FB1);0.4%B foliar spray(FB2);1 mg·kg^(−1) B+0.2%B foliar spray(SB1+FB1);1 mg·kg^(−1) B+0.4%B foliar spray(SB1+FB2);2 mg·kg^(−1) B+0.2%B foliar spray(SB2+FB1);2 mg·kg^(−1) B+0.4%B foliar spray(SB2+FB2);3 mg·kg^(−1) B+0.2%B foliar spray(SB3+FB1);3 mg·kg^(−1) B+0.4%B foliar spray(SB3+FB2).Each treat-ment has three replications,one pot having two plants per replication.Results B nutrition at all levels and methods of application significantly(P≤0.05)affected the growth,physiological,yield,and fiber quality characteristics of both cotton cultivars.However,SB2 either alone or in combination with foliar spray showed superiority over others,particularly in the non-Bt cultivar which responded better to B nutrition.Maxi-mum improvement in monopodial branches(345%),sympodial branches(143%),chlorophyll-a(177%),chlorophyll-b(194%),photosynthesis(169%),and ginning out turn(579%)in the non-Bt cultivar was found with SB2 compared with CK.In Bt cultivar,although no consistent trend was found but integrated use of SB3 with foliar spray performed relatively better for improving cotton growth compared with other treatments.Fiber quality characteristics in both cultivars were improved markedly but variably with different B treatments.Conclusion B nutrition with SB2 either alone or in combination with foliar spray was found optimum for improving cotton’s growth and yield characteristics. 展开更多
关键词 BORON cotton fiber length fiber strength GOT Micronaire value Seed cotton yield
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GhIQD10 interacts with GhCaM7 to control cotton fiber elongation via calcium signaling 被引量:1
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作者 Fan Xu Li Wang +5 位作者 Jun Xu Qian Chen Caixia Ma Li Huang Guiming Li Ming Luo 《The Crop Journal》 SCIE CSCD 2023年第2期447-456,共10页
IQ67-domain(IQD)proteins function in plant defense and in organ development.The mechanisms by which they influence cotton fiber development are unknown.In the present study,GhIQD10 was expressed mainly in the transiti... IQ67-domain(IQD)proteins function in plant defense and in organ development.The mechanisms by which they influence cotton fiber development are unknown.In the present study,GhIQD10 was expressed mainly in the transition period of cotton fiber development,and GhIQD10-overexpression lines showed shorter fibers.GhIQD10 interacted with GhCaM7 and the interaction was inhibited by Ca^(2+).In in vitro ovule culture,Ca^(2+)rescued the shorter-fiber phenotype of GhIQD10-overexpression lines,which were insensitive to the Ca^(2+)channel inhibitor verapamil and the Ca^(2+)pool release channel blocker 2-aminoethoxydiphenyl borate.We conclude that GhIQD10 affects cotton fiber elongation via Ca^(2+)signaling by interacting with GhCaM7.Brassinosteroid(BR)biosynthesis and signaling genes were up-regulated in GhIQD10-overexpression lines.Fiber development in these lines was not affected by epibrassinolide or the BR biosynthesis inhibitor brassinozole,indicating that the influence of GhIQD10 on fiber elongation was not associated with BR. 展开更多
关键词 cotton fiber elongation IQ67-domian protein CA^(2+) BRASSINOSTEROID
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Effect of Fiber Loadings and Treatment on Dynamic Mechanical, Thermal and Flammability Properties of Pineapple Leaf Fiber and Kenaf Phenolic Composites 被引量:6
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作者 M.Asim M.Jawaid +1 位作者 M.Nasir N.Saba 《Journal of Renewable Materials》 SCIE 2018年第4期383-393,共11页
This study deals with the analysis of dynamic mechanical,thermal and flammability properties of treated and untreated pineapple leaf fiber(PALF)and kenaf fiber(KF)phenolic composites.Results indicated that storage mod... This study deals with the analysis of dynamic mechanical,thermal and flammability properties of treated and untreated pineapple leaf fiber(PALF)and kenaf fiber(KF)phenolic composites.Results indicated that storage modulus was decreased for all composites with increases in temperature and pattern of slopes for all composites,having almost the same values of E′at glass transition temperature(Tg).The peak of the loss modulus of pure phenolic composites was shown to be much less.After the addition of kenaf/PALF,peaks were higher and shifted towards a high temperature.The Tan delta peak height was low for pure phenolic composites and maximum for 60%PALF phenolic composites.Cole-Cole analysis was carried out to understand the phase behavior of the composite samples.Thermogravimetric analysis(TGA)results indicated that pure phenolic composites have better thermal stability than PALF and kenaf phenolic composites.Vertical and horizontal UL-94 tests were conducted and showed pure phenolic resin is highly fire resistant.The overall results showed that treated KF composites enhanced the dynamic mechanical and thermal properties among all PALF/KF composites. 展开更多
关键词 pineapple leaf fiber KENAF fiber PHENOLIC resin DYNAMIC MECHANICAL analysis thermogravimetric analysis FLAMMABILITY
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Cotton pads-derived carbon materials/reduced graphene oxide modified with polypyrrole for electrode of supercapacitors 被引量:1
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作者 Ofelia MArias-Pinedo Elvis OLopez +5 位作者 Ivonne EMonje RSoria-Martinez Antony Bazan-Aguilar Clemente Alfredo Luyo Caycho Gabriel Angel Planes Angelica Maria Baena-Moncada 《Journal of Energy Chemistry》 SCIE EI CAS CSCD 2024年第7期41-53,共13页
This study investigates the influence of electropolymerization conditions on the deposition of polypyrrole(PPy)onto cotton-derived carbon fiber(CF)modified with reduced graphene oxide(rGO)for supercapacitors applicati... This study investigates the influence of electropolymerization conditions on the deposition of polypyrrole(PPy)onto cotton-derived carbon fiber(CF)modified with reduced graphene oxide(rGO)for supercapacitors applications using an experimental/theorical approach.The surface modification of CF by rGO and/or by PPy electrodeposited at 10,25 and 50 mV s^(-1) was thoroughly examined physicochemical and electrochemically.Composite electrodes comprising CF-rGo-PPy,synthesized via electropolymerization at 25 mV s^(-1),demonstrated a remarkable increase in capacitance,showcasing~742 F g^(-1) compared to 153 F g^(-1) for CF.SEM,N_(2)-surface area,XPS,and TD-DFT approach revealed that the higher capacitance observed in CF-rGo-PPy electrodes underscores the influence of morphology and charged nitrogen species on the electrochemical performance of these modified electrodes.Notably,this electrode material achieves a specific capacitance retention of~96%of their initial capacitance after 10000 cycles at 0.5 A g^(-1) measured in a two-electrodes cell configuration.This work also discusses the influence of the scan rate used for pyrrole electropolymerization on the pseudocapacitance contribution of PPy and its possible effect on the porosity of the material.These results highlight the importance of appropriate electropolymerization conditions that allow obtaining the synergistic effect between CF,rGO and PPy. 展开更多
关键词 SUPERCAPACITORS cotton pads-derived carbon fibers rGO PPy TD-DFT
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Effect of Hybridization on the Mechanical Properties of Pineapple Leaf Fiber/Kenaf Phenolic Hybrid Composites 被引量:4
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作者 M.Asim M.Jawaid +2 位作者 K.Abdan M.R.Ishak O.Y.Alothman 《Journal of Renewable Materials》 SCIE 2018年第1期38-46,共9页
In this study,pineapple leaf fiber(PALF),kenaf fiber(KF)and PALF/KF/phenolic(PF)composites were fabricated and their mechanical properties were investigated.The mechanical properties(tensile,flexural and impact)of the... In this study,pineapple leaf fiber(PALF),kenaf fiber(KF)and PALF/KF/phenolic(PF)composites were fabricated and their mechanical properties were investigated.The mechanical properties(tensile,flexural and impact)of the PALF/KF/PF hybrid composites were investigated and compared with PALF/KF composites.The 3P7K exhibited enhanced tensile strength(46.96 MPa)and modulus(6.84 GPa),flexural strength(84.21 MPa)and modulus(5.81 GPa),and impact strength(5.39 kJ/m2)when compared with the PALF/PF and KF/PF composites.Scanning electron microscopy(SEM)was used to observe the fracture surfaces of the tensile testing samples.The microstructure of the 7P3K hybrid composite showed good interfacial bonding and the addition of KF improved the interfacial strength.It has been concluded that the 3P7K ratio allowed obtaining materials with better mechanical properties(tensile,flexural and impact strengths)than PALF/PF and KF/PF composites.The results obtained in this study will be used for further comparative study of untreated hybrid composites with treated hybrid composites. 展开更多
关键词 pineapple leaf fiber kenaf fiber phenolic resin hybrid composites mechanical properties
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Flavanone and flavonoid hydroxylase genes regulate fiber color formation in naturally colored cotton
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作者 Hongli Zheng Bailin Duan +6 位作者 Bo Yuan Zhengbin Chen Dongliang Yu Liping Ke Wenlong Zhou Haifeng Liu Yuqiang Sun 《The Crop Journal》 SCIE CSCD 2023年第3期766-773,共8页
Using naturally colored cotton(NCC)can eliminate dyeing,printing and industrial processing,and reduce sewage discharge and energy consumption.Proanthocyanidins(PAs),the primary coloration components in brown fibers,ar... Using naturally colored cotton(NCC)can eliminate dyeing,printing and industrial processing,and reduce sewage discharge and energy consumption.Proanthocyanidins(PAs),the primary coloration components in brown fibers,are polyphenols formed by oligomers or polymers of flavan-3-ol units derived from anthocyanidins.Three essential structural genes for flavanone and flavonoid hydroxylation encoding flavanone-3-hydroxylase(F3H),flavonoid 3’-hydroxylase(F3’H)and flavonoid 3’5’-hydroxylase(F3’5’H)are initially committed in the flavonoid biosynthesis pathway to produce common precursors.The three genes were all expressed predominantly in developing fibers of NCCs,and their expression patterns varied temporally and spatially among NCC varieties.In GhF3Hi,GhF3’Hi and GhF3’5’Hi silenced lines of NCC varieties XC20 and ZX1,the expression level of the three genes decreased in developing cotton fiber,negatively correlated with anthocyanidin content and fiber color depth.Fiber color depth and type in RNAi lines changed with endogenous gene silencing efficiency and expression pattern,the three hydroxylase genes functioned in fiber color formation.GhF3H showed functional differentiation among NCC varieties and GhF3’H acted in the accumulation of anthocyanin in fiber.Compared with GhF3’H,GhF3’5’H was expressed more highly in brown fiber with a longer duration of expression and caused lighter color of fibers in GhF3’5’H silenced lines.These three genes regulating fiber color depth and type could be used to improve these traits by genetic manipulation. 展开更多
关键词 Naturally colored cotton Brown cotton fiber fiber color Anthocyanidin Flavanone/flavanoid hydroxylase
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Fiber-specific increase of carotenoid content promotes cotton fiber elongation by increasing abscisic acid and ethylene biosynthesis
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作者 Jianyan Zeng Dan Yao +17 位作者 Ming Luo Lingli Ding Yi Wang Xingying Yan Shu’e Ye Chuannan Wang Yiping Wu Jingyi Zhang Yaohua Li Lingfang Ran Yonglu Dai Yang Chen Fanlong Wang Hanyan Lai Nian Liu Nianjuan Fang Yan Pei Yuehua Xiao 《The Crop Journal》 SCIE CSCD 2023年第3期774-784,共11页
Cotton fiber is a raw material for the global textile industry and fiber quality is essential to its industrial application.Carotenoids are plant secondary metabolites that may serve as dietary components,regulate lig... Cotton fiber is a raw material for the global textile industry and fiber quality is essential to its industrial application.Carotenoids are plant secondary metabolites that may serve as dietary components,regulate light harvesting,and scavenge reactive oxygen species.Although carotenoids accumulate predominantly in rapidly elongating cotton fibers,their roles in cotton fiber development remain poorly understood.In this study,a fiber-specific promoter proSCFP was applied to drive the expression of GhOR1Del,a positive regulator of carotenoid accumulation,to upregulate the carotenoid level in cotton fiber in planta.Fiber length,strength,and fineness were increased in proSCFP:GhOR1Del transgenic cotton and abscisic acid(ABA)and ethylene contents were increased in elongating fibers.The ABA downstream regulator GhbZIP27a stimulated the expression of the ethylene synthase gene GhACO3 by binding to its promoter,suggesting that ABA promoted fiber elongation by increasing ethylene production.These findings suggest the involvement of carotenoids and ABA signaling in promoting cotton fiber elongation and provide a strategy for improving cotton fiber quality. 展开更多
关键词 Abscisic acid CAROTENOID cotton fiber elongation ETHYLENE ORANGE gene
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Properties and Processing of the Pineapple Leaf Fiber 被引量:1
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作者 Zhang Yuanming(张元明) +1 位作者 Yu Chongwen(郁崇文) 《Journal of Donghua University(English Edition)》 EI CAS 2001年第4期24-26,共3页
The properties and constituent of pineapple fiber were tested, and on the base of that, chemical treatment was used to improve the spinnability of the fiber, and the pure and blended yarn of pineapple fiber were produ... The properties and constituent of pineapple fiber were tested, and on the base of that, chemical treatment was used to improve the spinnability of the fiber, and the pure and blended yarn of pineapple fiber were produced in worsted and cotton spinning system. 展开更多
关键词 pineapple LEAF fiber bast fiber degumming spinning
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