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Investigating the Genetic Bases of Growth Regulation by E2F3 in Dwarf Surf Clams Mulinia lateralis
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作者 YAO Ruixing WANG Chen +3 位作者 KONG Lingling WANG Yujue BAO Zhenmin HU Xiaoli 《Journal of Ocean University of China》 SCIE CAS CSCD 2024年第5期1347-1358,共12页
Bivalve aquaculture plays a crucial role in the aquaculture industry due to the economic value of many bivalve species.Understanding the underlying genetic basis of bivalve growth regulation is essential for enhancing... Bivalve aquaculture plays a crucial role in the aquaculture industry due to the economic value of many bivalve species.Understanding the underlying genetic basis of bivalve growth regulation is essential for enhancing germplasm innovation and ensuring sustainable development of the industry.Though numerous candidate genes have been identified,their functional validation remains challenging.Fortunately,the dwarf surf clam(Mulinia lateralis)serves as a promising model organism for investigating genetic mechanisms underlying growth regulation in bivalves.The GWAS study in the Yesso scallop(Patinopecten yessoensis)has pinpointed the E2F3 gene as a key regulator of growth-related traits.However,the specific role of E2F3 in bivalve growth remains unclear.This study aimed to further confirm the regulatory function of the E2F3 gene in the dwarf surf clam through RNA interference experiments.Our results revealed several genes are associated with individual growth and development,including CTS7,HSP70B2,and PGLYRP3,as well as genes involved in lipid metabolism such as FABP2 and FASN.Functional enrichment analysis indicated that E2F3 primarily modulates critical processes like amino acid and lipid metabolism.These findings suggest that E2F3 likely regulates growth in the dwarf surf clam by influencing amino acid and lipid metabolism.Overall,this study advances our understanding on the function of E2F3 gene in growth regulation in bivalves,providing valuable insights for future research in this field. 展开更多
关键词 growth regulation E2F3 RNA interference experiment transcriptomic analysis dwarf surf clam Mulinia lateralis BIVALVE
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Study of Effects of Plant Growth Regulators on Fruit Quality of Table Grape
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作者 Yan SUN Nan JIA +7 位作者 Yonggang YIN Shuli HAN Changjiang LIU Xinyu WANG Shiyuan LIU Yingjie WANG Bin HAN Minmin LI 《Agricultural Biotechnology》 2024年第5期1-4,9,共5页
The effects of different treatments on the seedlessness and fruit quality of‘Miguang’table grape was studied by using plant growth regulators,gibberellin acid(GA 3)and forchlorfenuron(CPPU),under different concentra... The effects of different treatments on the seedlessness and fruit quality of‘Miguang’table grape was studied by using plant growth regulators,gibberellin acid(GA 3)and forchlorfenuron(CPPU),under different concentrations and application time.The results showed that the effects of different treatments on the seedlessness and fruit quality were different.Seedless rate,cluster weight,berry weight,berry shape index,soluble solid content,total acid content,soluble solids to acidity ratio,pulling resistance,turgor pressure and flesh firmness without skin were comprehensively evaluated,as a result of which,the optimum treatment on‘Miguang’table grape was to apply with GA 320 mg/L+SM 200 mg/L at one week before bloom and GA 325 mg/L+CPPU 3 mg/L at two weeks after bloom. 展开更多
关键词 Plant growth regulators SEEDLESSNESS Fruit quality
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Long-lasting growth regulation on cotton using mepiquat chloride adsorbed layered double hydroxide
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作者 Chong Wang Changcheng An +5 位作者 Ningjun Li Changjiao Sun Yue Shen Shenshan Zhan Xingye Li Yan Wang 《Advanced Agrochem》 2024年第1期57-63,共7页
Mepiquat chloride(1,1-dimethyl piperidinium chloride,DPC)is a representative plant growth regulator which can regulate the source-sink relationship for yield increase and shape ideal plant type for mechanical cultivat... Mepiquat chloride(1,1-dimethyl piperidinium chloride,DPC)is a representative plant growth regulator which can regulate the source-sink relationship for yield increase and shape ideal plant type for mechanical cultivation.Here we show a DPC adsorbed layered double hydroxide(DPC-LDH)architecture with enhanced controlled release property and soil distribution.By drip irrigation on cotton,it makes total dosage of DPC reduced from 270 to 90 g/ha,while the frequency decreased from 5 to 2 times.The unique supramolecular interaction is confirmed as the basis of controlled release behavior.Moreover,except for the physical resistance to the sedimentation brought by the lamellar LDH,the enhanced electrostatic interaction makes DPC-LDH the dominant distribution in soil.It improves the efficiency of DPC molecules absorbed by cotton plants and greatly saves the inputs in labor and chemicals.This method is expected to achieve the yield increase and agricultural sustainability by energy saving and emission reduction. 展开更多
关键词 Layered double hydroxide Plant growth regulation Controlled release CO2 emission reduction Nano-pesticide
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Research progress on the synthesis of phenylurea derived plant growth regulators
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作者 Dongmei Chen Tianhui Liao +2 位作者 Wenjun Ye Zhichao Jin Shichao Ren 《Advanced Agrochem》 2024年第2期143-150,共8页
Plant growth regulators(PGRs)are chemical substances that imitate the functions of phytohormones to enhance the crop yield and the harvest process.Phenylurea-derived plant growth regulators are known for their excelle... Plant growth regulators(PGRs)are chemical substances that imitate the functions of phytohormones to enhance the crop yield and the harvest process.Phenylurea-derived plant growth regulators are known for their excellent efficacy in promoting fruit growth,particularly in kiwifruit,grapes,and melons.Phenylurea derivatives represent one class of the highly efficient and versatile PGRs.Specifically,forchlorfenuron(CPPU,N-(2-chloro-4-pyridinyl)-N0-phenylurea)exhibits similar growth-regulating efficacy to cytokinins and has a significant impact on the plant growth and the crop yield.As a result,there is growing interest in exploring the incorporation of various phenylurea moieties into agrochemicals to enhance their regulatory properties on crops.This review aims to provide a comprehensive overview on representative synthetic approaches for phenylurea derived PGRs.Additionally,we provide our perspective on the future development in this active researchfield. 展开更多
关键词 Plant growth regulators SYNTHESIS Phenylurea derivatives CYTOKININ
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Exploration and development of artificially synthesized plant growth regulators
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作者 Han Yan Zhaokai Yang +1 位作者 Shunhong Chen Jian Wu 《Advanced Agrochem》 2024年第1期47-56,共10页
Plant growth regulators(PGRs)are a critical regulatory factor that influences plant development and against abiotic or biotic stress.The chemical synthesis of phytohormone analogues represents an effective approach fo... Plant growth regulators(PGRs)are a critical regulatory factor that influences plant development and against abiotic or biotic stress.The chemical synthesis of phytohormone analogues represents an effective approach for developing novel PGRs with enhanced bioactivity,reduced costs,and simplified synthesis.This review provides a comprehensive examination of artificially synthesized PGRs(phytohormone structural analogues and functional analogues)over the past five years,emphasizing the synthesis strategy,bioactivity,structure-activity relationships,and target protein.This review argues that the synthesis of functional analogues of phytohormones represents a crucial in the advancement of novel PGRs,and optimization of synthetic procedures would greatly facilitate the commercialization of these PGRs. 展开更多
关键词 Plant growth regulator Structure-activity relationship Artificially synthesis Bioactivity
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Role,residues and microbial degradation of plant growth regulators(PGRs):A scoping review
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作者 Zhaoxian Zhang Sicheng Shao +1 位作者 Dandan Pan Xiangwei Wu 《Advanced Agrochem》 2024年第1期43-46,共4页
Plant growth regulators(PGRs)play an important role in increasing crop yield,and quality,and enhancing crop stress resistance in agricultural production,especially for important crops.PGRs can affect the transport and... Plant growth regulators(PGRs)play an important role in increasing crop yield,and quality,and enhancing crop stress resistance in agricultural production,especially for important crops.PGRs can affect the transport and distribution of assimilates by changing the content and distribution of endogenous hormones in plants.Numerous empirical research results have proven that PGRs have an important impact on the growth,development,and yield composition of wheat.Taking wheat plants as an example,this study reviews the application of PGRs in wheat production and explores their impact on wheat growth and yield.Furthermore,residues and microbial degradation of PGRs are summarized in detail.Finally,future research directions on PGR application in wheat production are proposed.This summary is of great significance for understanding the role of PGRs in wheat production. 展开更多
关键词 Agricultural production Crop growth Plant growth regulators(PGRs) WHEAT
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The Effect of Plant Growth Regulators on Physico-Chemical Properties of Safflower (Carthamus tinctorius L.) Derived Biodiesel
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作者 Charles Mazereku Jerekias Gandure Clever Ketlogetswe 《Open Journal of Applied Sciences》 2024年第4期1052-1069,共18页
Global concerns about the environmental impact of combustion emissions from petroleum fuels influence new research to seek for alternative energy sources. The current study investigates the possibility of using safflo... Global concerns about the environmental impact of combustion emissions from petroleum fuels influence new research to seek for alternative energy sources. The current study investigates the possibility of using safflower (Carthamus tinctorius L.) as an alternative biodiesel raw material. Four plant growth regulators (PGR) were used to boost the production of safflower. Thirteen treatments were constituted from the four plant regulators and applied to the safflower crop arranged in completely randomised design, repeated three times. The results show that the effect of plant growth regulators was not more than that of the control. More studies have to be channelled towards the relationship between safflower and plant growth regulators. 展开更多
关键词 SAFFLOWER Biodiesel Plant growth Regulators
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Influence of Plant Growth Regulators on Pollen Germination and Growth of Xinjiang Apricots 被引量:6
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作者 孙慧瑛 廖康 +3 位作者 安晓芹 成小龙 刘娟 邱晨 《Agricultural Science & Technology》 CAS 2013年第2期262-268,共7页
[Objective] This study aimed to investigate the influence of different plant growth regulators on apricot pollen germination and pollen tube growth. [Method] Pollens of six kinds of Xinjiang apricots were cultured in ... [Objective] This study aimed to investigate the influence of different plant growth regulators on apricot pollen germination and pollen tube growth. [Method] Pollens of six kinds of Xinjiang apricots were cultured in solid media supplemented with five plant growth regulators (GA3 , NAA, 2, 4-D, 6-BA, IAA). Then the rate of pollen germination and the length of pollen tube were respectively measured. [Result] In a certain concentration range, GA3 most significantly promoted the pollen germination and the pollen tube growth of Shushanggan, Kalayulvke, Dayoujia, Yiliakeyulvke and Kabakehuanna; NNA had the strongest improvement function on Kumaiti’s pollen germination and pollen tube growth. [Conclusion] All the five plant growth regulators promoted the pollen germination and the pollen tube growth of apricots at low concentration but inhibited them at high concentration. 展开更多
关键词 APRICOT Plant growth regulators Pollen germination Pollen tube growth
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Effects of Plant Growth Regulator on Absorption,Circulation and Contents of Potassium in Flue-cured Tobacco 被引量:7
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作者 沈方科 韦忠 +3 位作者 王蕾 尹永强 潘炜玲 顾明华 《Agricultural Science & Technology》 CAS 2011年第12期1877-1880,1982,共5页
[Objective] This study was to investigate the effects of plant growth regulator on accumulation and circulation of potassium in flue-cured tobacco.[Methods] Hydroponics experiment was adopted to study the effects of p... [Objective] This study was to investigate the effects of plant growth regulator on accumulation and circulation of potassium in flue-cured tobacco.[Methods] Hydroponics experiment was adopted to study the effects of plant growth regulator(NAA,GA3,BR) on accumulation and circulation of potassium in flue-cured tobacco.[Results] The BR treatment increased the absorption of potassium,calcium and magnesium in flue-cured tobacco,reduced the potassium emission from the root,enhanced the accumulation and contents and promoted the circulation of potassium in the tobacco plants.There was no statistical difference between the NAA and GA3 treatment.And BR treatment was 0.52%,0.30%,0.28% higher than NAA treatment in enhancing potassium content in tobacco plants at 2,7,12 d after topping.In a word,the results showed that BR treatment was the most.[Conclusion] BR treatment could effectively enhance potassium content in tobacco plants after topping. 展开更多
关键词 Flue-cured tobacco Absorption of potassium Potassium circulation Plant growth regulator
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Dwarfing effects of plant growth regulators on narcissi 被引量:3
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作者 任旭琴 梁宏伟 +1 位作者 陈伯清 季美云 《Journal of Forestry Research》 SCIE CAS CSCD 2003年第4期339-341,共3页
The effects of four kinds of plant growth regulators with different concentrations on narcissi were studied in 2001. The results showed that the regulators could inhibit the growths of height and leaves of narcissi. O... The effects of four kinds of plant growth regulators with different concentrations on narcissi were studied in 2001. The results showed that the regulators could inhibit the growths of height and leaves of narcissi. Of the four regulators, the dwarfing effects of paclobatrazol (PP333) and uniconazole (S3307) on narcissi were better than those of chlorocholine (CCC) and dimethyl amino-sussinamic acid (B9). All of the regulators did not have significant effect on the root length. Moreover, the time of flowering was later for the narcissi treated with regulators than that of the control to a certain extent, and the range delayed was from 2 days to 19 days. The correlation analysis results showed that there was a significant correlation between the time of flowering and the concentrations of regulators. The ornament value of narcissi was obviously improved by using the regulators. 展开更多
关键词 Narcissus tuzetta var. chinesis Roem Plant growth regulators PP333 S3307 B9 CCC
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Influences of Carbon Sources and Plant Growth Regulators on Anther Culture Efficiency of Pepper 被引量:9
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作者 赵激 邹学校 +2 位作者 张竹青 杨博智 周书栋 《Agricultural Science & Technology》 CAS 2010年第4期102-105,共4页
[Objective]In order to increase anther culture efficiency of pepper.[Method]MS culture media and Bolajiaohong were used in this experiment to study the influences of carbon sources and concentrations on anther callus ... [Objective]In order to increase anther culture efficiency of pepper.[Method]MS culture media and Bolajiaohong were used in this experiment to study the influences of carbon sources and concentrations on anther callus induction of pepper.Jiayu was taken as a material to study influences of plant growth regulators and concentrations on anther callus induction of pepper according to L16(4^5) orthogonal design.[Result]The average callus and embryoid induction rates of maltose at all concentrations were higher than these of sucrose but the difference was not significant.Taking maltose or sucrose as a carbon source,3% to 6% concentration was good for increasing induction frequencies of calli and embryoids.However,If the concentration was over 6%,the induction rates were declined dramatically with the increase of sugar concentration.The influences of growth regulators on induction rate of calli were listed as 2,4-D﹥ZT﹥NAA﹥KT﹥6-BA;the influences on induction rates of embryoids were listed as 2,4-D﹥NAA﹥ZT﹥KT﹥6-BA.The 2,4-D,ZT,NAA and KT had signficant or extremely significant influences on induction rates of calli and embryoids.2,4-D,ZT at 1.0 mg/L and NNA,KT at 0.5 mg/L had the best effects.The influences of ZT on calli and embryoids were better than those of KT and 6-BA.1.0 mg/L 2,4-D +1.0 mg/L ZT +0.5 mg/L KT +0.5 mg/L 6-BA was the best regulator combination for induction culture of Jiayu anther.[Conclusion]The experiment provided research basis for anther culture of pepper. 展开更多
关键词 PEPPER Anther culture Carbon source Plant growth regulator CALLUS EMBRYOID
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Effect of vernalization and plant growth regulators on flowering of Onithogalum ‘Chesapeake Snowflake’ 被引量:1
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作者 王锦 Virginia R.Walter 《Agricultural Science & Technology》 CAS 2006年第1期23-28,共6页
The effect of vernalization and two growth regulators Fascination^TM and Pro-Gibb^R on the growth, inflorescence development and flowering of Omithogalurrt Chesapeake Snowflake' was studied. Regardless of growth regu... The effect of vernalization and two growth regulators Fascination^TM and Pro-Gibb^R on the growth, inflorescence development and flowering of Omithogalurrt Chesapeake Snowflake' was studied. Regardless of growth regulator treatment, chilling bulbs for 3 weeks at 10℃ before planting accelerated flowering of the first inflorescence by 5 to 6 days, elongated floral stem length by 1.5 to 2 cm and shortened leaf length by 4 to 5 cm as compared with non-chilled bulbs. When bulbs were chilled 3 weeks at 10℃ before planting, Fascination 2% and Pro-Gibb accelerated flowering of the first inflorescence by 2 to 6 days respectively as compared with the control. When bulbs were not chilled before planting, Fascination 2% and Pro-Gibb accelerated flowering of the first inflorescence by 6 to12 days respectively as compared with the control. The lengths of the leaves and the inflorescences were not affected by PGR treatment. Higher rates of Pro-Gibb (100 mg.L^-1 and 200 mg.L^-1) and more amount of Fascination 2%(100 μL and 200 μL) can cause abortion of inflorescence. 展开更多
关键词 VERNALIZATION plant growth regulators FLOWERING Onithogalum ‘Chesapeake Snowflake'
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Review on Effects of Application of Exogenous Growth Regulating Substance on Fruits Weight of Peach
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作者 马之胜 贾云云 +3 位作者 王越辉 白瑞霞 陈江玉 刘志欣 《Agricultural Science & Technology》 CAS 2015年第8期1681-1685,共5页
The effects of exogenous growth regulating substance on the fruit weight of peach were reviewed. Paclobutrazol could increase the single fruit weight in dif- ferent degree, and cytokinins could also increase the singl... The effects of exogenous growth regulating substance on the fruit weight of peach were reviewed. Paclobutrazol could increase the single fruit weight in dif- ferent degree, and cytokinins could also increase the single fruit weight. GA3 and B9 had no effect on fruit size or on reducing single fruit weight. Chlorflurenol-methy, ABT and salicylic acid had no effect on fruit size. Suggestions on the future re- search were put forward. 展开更多
关键词 PEACH Fruit size Yield Exogenous growth regulating substance
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Effects of Plant Growth Regulators on the Contents of Reducing Sugar and Starch in Potato(Solanum tuberosum L.)
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作者 宫占元 项洪涛 +2 位作者 李梅 马光恕 郑殿峰 《Agricultural Science & Technology》 CAS 2010年第9期68-72,共5页
[Objective] The aim was to investigate the effects of plant growth regulators on contents of reducing sugar and starch in potato(Solanum tuberosum L.).[Method]A potato cultivar named 'Holand-212' with three treatm... [Objective] The aim was to investigate the effects of plant growth regulators on contents of reducing sugar and starch in potato(Solanum tuberosum L.).[Method]A potato cultivar named 'Holand-212' with three treatments by spraying Diethyl aminoethyl hexanoate(DTA-6),Uniconazole(S3307)and SOD mimics(SODM)were employed to compare differences of the contents of reducing sugar and starch in potato leaves,stolons and tubers in a field experiment.[Result]DTA-6 treatment could significantly reduce the contents of starch and reducing sugar in potato stolons in the period of 100-110 d after seeding,and it could also reduce the content of reducing sugar in tubers,but there is an opposite result in leaves in the same period,significantly.S3307 could extremely significantly increase the content of starch,and can promote the transfer of starch in stolons,in addition,it also could reduce the content of reducing sugar in tubers,and extremely significantly increase the content of starch in leaves at the 110 d after sowing.Moreover,there is a similar effect between SODM and S3307.[Conclusion]The research results are significant for understanding mechanisms of plant growth regulators and promoting application of plant growth regulator in potato. 展开更多
关键词 Plant growth regulator POTATO Reduced sugar STARCH
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Effects of Four Kinds of Plant Growth Regulators on Maize Yield and Lodging Resistance
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作者 孙扣忠 赫明涛 《Agricultural Science & Technology》 CAS 2017年第3期540-542,共3页
The research reviewed use effects of Yuhuangjin, Xishibao, Zhuangfengling and Jianzhuangsu on Jinhai No. 5. The results showed plant height and ear height declined in varying degrees, as well as empty-stalk rate and l... The research reviewed use effects of Yuhuangjin, Xishibao, Zhuangfengling and Jianzhuangsu on Jinhai No. 5. The results showed plant height and ear height declined in varying degrees, as well as empty-stalk rate and lodging rate, with the plant growth regulators applied. Economic characters all improved, including ear length and diameter, barren-tip length and hundred-seed weight, and corn yield went up significantly on average. For example, the increased yield can be as high as 17.43% when Yuhuangjin was applied at 30 ml/hm^2. 展开更多
关键词 growth Regulators MAIZE Lodging resistance YIELD
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Deciphering Rice Lesion Mimic Mutants to Understand Molecular Network Governing Plant Immunity and Growth 被引量:9
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作者 ZHU Xiaobo ZE Mu +2 位作者 CHERN Mawsheng CHEN Xuewei WANG Jing 《Rice science》 SCIE CSCD 2020年第4期278-288,共11页
Plant lesion mimic mutants(lmms)generally possess autoimmunity and hypersensitive response(HR)-like cell death in the absence of biotic or abiotic stress.They have attracted much attention because they are useful tool... Plant lesion mimic mutants(lmms)generally possess autoimmunity and hypersensitive response(HR)-like cell death in the absence of biotic or abiotic stress.They have attracted much attention because they are useful tools for deciphering the interaction between defense signaling and growth.Recent studies have identified more than 30 lmms involved in the plant immune response and cell death in rice.Genes underlying these lmms,coding for diverse types of proteins,mainly regulate transcription,protein translation and modification,vesicular trafficking and catalyzation of metabolism.Here,we presented an overview of the most recent advances on the study of lmms in rice and proposed a perspective on potential utilization of LMM genes in agriculture. 展开更多
关键词 lesion mimic mutant AUTOIMMUNITY cell death growth regulation RICE
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Establishment of high frequency shoot regeneration system in Himalayan poplar(Populus ciliata Wall. ex Royle) from petiole explants using Thidiazuron cytokinin as plant growth regulator 被引量:4
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作者 G. Aggarwal A. Gaur D. K. Srivastava 《Journal of Forestry Research》 SCIE CAS CSCD 2015年第3期651-656,共6页
Populus species are important resources for industry and in scientific study on biological and agricul- tural systems. Our objective was to enhance the frequency of plant regeneration in Himalayan poplar (Populus cil... Populus species are important resources for industry and in scientific study on biological and agricul- tural systems. Our objective was to enhance the frequency of plant regeneration in Himalayan poplar (Populus ciliata wall. ex Royle). The effect of TDZ alone and in combi- nation with adenine and NAA was studied on the regen- eration potential of petiole explants. The explants were excised from Himalayan poplar plants grown in glass- houses. After surface sterilization the explants were cul- tured on shoot induction medium. High percentage shoot regeneration (86 %) was recorded on MS medium sup- plemented with 0.004 mg L-1 TDZ and 79.7 mg L-1 adenine. The regenerated shoots for elongation and multi- plication were transferred to MS + 0.5 mg L-1 BAP + 0.2 mg L-1 IAA + 0.3 mg L-1 GA3. Root re- generation from shoots developed in vitro was observed on MS medium supplemented with 0.10 mg L-1 IBA. Hi- malayan poplar plantlets could be produced within 2 months after acclimatization in a sterile mixture of sand and soil. We developed a high efficiency plant regeneration protocol from petiole explants of P. ciliata. 展开更多
关键词 In vitro regeneration Petiole explants growth regulator THIDIAZURON Populus ciliata
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Effects of plant growth regulators, carbon sources and pH values on callus induction in Aquilaria malaccensis leaf explants and characteristics of the resultant calli 被引量:4
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作者 Shashita JAYARAMAN Nurul Hazwani DAUD +1 位作者 Rasmina HALIS Rozi MOHAMED 《Journal of Forestry Research》 SCIE CAS CSCD 2014年第3期535-540,共6页
The endangered tropical tree, Aquilaria malaccensis, produces agarwood for use in fragrance and medicines. Efforts are currently un-derway to produce valuable agarwood compoundsn tissue culture. The purpose of this st... The endangered tropical tree, Aquilaria malaccensis, produces agarwood for use in fragrance and medicines. Efforts are currently un-derway to produce valuable agarwood compoundsn tissue culture. The purpose of this study was to develop an optimal growth medium, specif-ically, the best hormone combination for callus suspension culture. Using nursery-grown A. malaccensis, sterilized leaf explants were first incu-bated on basic Murashige and Skoog (MS) gel medium containing 15g/L sucrose and at pH 5.7. Different auxin types including 1-naphthaleneacetic acid (NAA), 2,4-dichlorophenoxyacetic acid (2,4-D), and indole-3-butyric acid (IBA), were tested at various concentrations (0.55, 1.1 and 1.65 μM) using the basic medium. Leaf explants were incubated for 30 days in the dark. Callus induced by 1.1 μM NAA had the highest biomass dry weight (DW) of 17.3 mg;however the callus was of a compact type. This auxin concentration was then combined with either 6-benzylaminopurine (BAP) or kinetin at 0.55, 1.1, 2.2 or 3.3 μM to induce growth of friable callus. The 1.1μM NAA+2.2μM BAP com-bination produced friable callus with the highest biomass (93.3mg DW). When testing the different carbon sources and pHs, sucrose at 15g/L and pH at 5.7 yielded highest biomasses at 87.7mg and 83mg DW, respec-tively. Microscopic observations revealed the arrangement of the friable cells as loosely packed with relatively large cells, while for the compact callus, the cells were small and densely packed. We concluded that MS medium containing 15 g/L sucrose, 1.1 μM NAA + 2.2 μM BAP hor-mone combination, and a pH of 5.7 was highly effective for inducing friable callus from leaf explants of A. malaccensis for the purpose of establishing cell suspension culture. 展开更多
关键词 AGARWOOD endangered tree in vitro plant growth regulators Thymelaeaceae
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Effect of Different Plant Growth Regulators on Callus Induction and in vitro Rapid Propagation of Wild Petunia Juss. 被引量:4
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作者 Yan ZHAO Na XU +1 位作者 Zhongyou MA Wei LIU 《Agricultural Science & Technology》 CAS 2012年第5期931-934,共4页
In this study,the seeds of wild Petunia Juss.were used as explants to investigate the optimal condition for tissue culture.Several different kinds and concentrations of growth regulators were adopted to produce more m... In this study,the seeds of wild Petunia Juss.were used as explants to investigate the optimal condition for tissue culture.Several different kinds and concentrations of growth regulators were adopted to produce more multiple bud clumps,callus or roots in this study.The experiments may provide experimental foundation for the rapid propagation technology and establishment of tissue culture system for wild Petunia Juss. 展开更多
关键词 Petunia Juss. Organ differentiation Rapid propagation Plant growth regulators
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Joint Toxicity of Beauveria bassiana and Two Insect Growth Regulators on Beet Armyworm,Spodoptera exigua(Hübner) 被引量:3
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作者 Hu Anling Tian Zhaofeng +2 位作者 Gao Xiwu Nong Xiangqun Li Yongdan 《Plant Diseases and Pests》 CAS 2016年第5期1-4,12,共5页
Joint toxicity of Beauveria bassiana and two insect growth regulators, methoxyfenozide and hexaflumuron, on beet annywonn larvae, Spodoptera exigua ( Htthner), were investigated. An obvious synergism effect of the t... Joint toxicity of Beauveria bassiana and two insect growth regulators, methoxyfenozide and hexaflumuron, on beet annywonn larvae, Spodoptera exigua ( Htthner), were investigated. An obvious synergism effect of the two insect growth regulators with B. beauveria was observed. When the insect growth regulators at LC50 concentrations (25 × 10^-6 g/L for methoxyfenozide and 1 000 × 10^ -6 g/L for hexaflumuren) were mixed with B. bassiana at the volume ratio of 4: 1, the mixtures achieved the best efficacy. The co-toxicity co-efficient (CTC) of methexyfenozide and B. bass/ana was 285, and that of hexaflumuron and B. bass/ana was 208. Scanning electron microscope observation of the longitudinal section of S. exigua revealed obviously different patterns of integument in different treatment groups. 展开更多
关键词 Insect growth regulators Beauveria bassiana Spodoptera exigua Joint toxicity
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