期刊文献+
共找到894篇文章
< 1 2 45 >
每页显示 20 50 100
Microscopic Characteristics and Routine Detection of Hedyotis hedyotidea(DC.)Merr.
1
作者 Guoshen WANG Shiman CHEN +3 位作者 Shenggao YIN Canfei ZHANG Yanxia CEN Hailin LU 《Medicinal Plant》 CAS 2023年第5期6-9,24,共5页
[Objectives]To study the microscopic characteristics and routine detection of Hedyotis hedyotidea(DC.)Merr.[Methods]The microscopic characteristics of the root,stem cross section and the whole plant powder of H.hedyot... [Objectives]To study the microscopic characteristics and routine detection of Hedyotis hedyotidea(DC.)Merr.[Methods]The microscopic characteristics of the root,stem cross section and the whole plant powder of H.hedyotidea were studied by the methods of slide-shaft section,biological staining and microscopic imaging;the routine detection items such as moisture,ash,acid-insoluble ash and extract were detected and analyzed in accordance with the requirements of Chinese Pharmacopoeia.[Results]The microscopic characteristics of the root,the stem and the whole plant powder of H.hedyotidea were obtained.The moisture content of 10 batches of H.hedyotidea samples was in the range of 4.25%-7.90%,the water-soluble extract is in the range of 15.08%-22.52%,the total ash was in the scope of 8.27%-10.45%,and the acid-insoluble ash was in 0.13%-0.95%.The proposed water content of H.hedyotidea should not exceed 10.00%,the water-soluble extract should not be less than 12.00%,the total ash content should not exceed 13.00%,and the acid-insoluble ash content should not exceed 1.20%.[Conclusions]The results of this experiment can provide a reference for the quality control and quality standard of H.hedyotidea. 展开更多
关键词 Hedyotis hedyotidea(DC.)merr. Microscopic characteristics Routine detection
下载PDF
Insecticidal Activities of Extracts from Brucea javanica (L.) Merr. Callus 被引量:4
2
作者 曾宪儒 曾涛 +1 位作者 黎柳锋 韩美丽 《Agricultural Science & Technology》 CAS 2008年第4期141-143,共3页
[Objective] The research aimed to lay a foundation for the screening of cell lines producing secondary metabolites of Brucea javanica(L.)Merr.[Method] The insecticidal activities of the extracts from branch and 3 diff... [Objective] The research aimed to lay a foundation for the screening of cell lines producing secondary metabolites of Brucea javanica(L.)Merr.[Method] The insecticidal activities of the extracts from branch and 3 different types of calluses of Brucea javanica(L.)Merr.was detected through methods of leaf disc and potted seedlings against the diamond back moth.[Result] Extracts from four kinds of Brucea javanica(L.)Merr.tissues assumed both the activities of antifeedant and oviposition deterrency against the diamond back moth.Antifeedant effect of extracts was in turn the callus C< callus B< callus A< branches.Oviposition deterrency activity of the extracts was in turn the callus A> branch > callus B>callus C.The insecticidal activities of callus A and B were higher than that of the callus C.[Conclusion] The results show that insecticidal activity of callus and its growth rate is inversely proportional. 展开更多
关键词 Brucea javanica(L.)merr. CALLUS INSECTICIDAL ACTIVITIES Plutella XYLOSTELLA L.
下载PDF
Effect of Radiative Forcing on Growth and Photosynthetic Responses of Elaeocarpus glabripetalus Merr.
3
作者 杨爽 江洪 翟秀丽 《Agricultural Science & Technology》 CAS 2012年第6期1240-1246,共7页
[Objective] This study aimed to reveal the impact of radiative forcing on the woody plants in subtropical regions of China through the study on the effect of radiative forcing on growth and photosynthetic responses of... [Objective] This study aimed to reveal the impact of radiative forcing on the woody plants in subtropical regions of China through the study on the effect of radiative forcing on growth and photosynthetic responses of Elaecarpus glabripetalus Merr. seedlings. [Method] Three gradients of radiative forcing treatments were applied to the species namely, control group (100% natural light), weak radiative forcing group (39% natural light) and strong radiative forcing group (16% natural light). The relative contents of chlorophyll, photosynthetic parameters of E. glabripetalus in different periods were measured to analyze the effects of different gradients of radiative forcing on plant height, ground diameter, chlorophyll content, gas exchange parameters, light response cure parameters. [Result] The increased ground diameter of E. glabripetalus in different treatments was the control weak radiative forcing group strong radiative forcing group; the increased plant height in the early period was strong radiative forcing group weak radiative forcing group control, but there was no significant difference during the late period; the relative content of chlorophyll was strong radiative forcing group weak radiative forcing group control. The light compensation point (LCP), light saturation point (LSP) and the maximum net photosynthetic rate (A max ) were reduced in radiative forcing treatments. The stomatal conductance (G s ), transpiration rate (Tr) of E. glabripetalus in strong radiative forcing group were significantly smaller than that in the control group, while there was no significant change in dark respiration rate (R d ) and apparent quantum yield (AQY). [Conclusion] In summary, the radiative forcing can change the environmental factors which have significant effect on the ground diameter, plant height, relative content of chlorophyll and photosynthetic physiological parameters, but with the processing of treatment the effects on ground diameter and plant height increase are not significant in the late period, indicating that E. glabripetalus seedlings have some resistance and adaptability to the radiative forcing environment. 展开更多
关键词 Radiative forcing Elaeocarpus glabripetalus merr. Chlorophyll relative content Photosynthetic characteristic
下载PDF
大豆(Glycine max(L.) Merr.)叶片抗氧化酶对干旱及复水的响应机制 被引量:9
4
作者 王文斌 王晓怡 +2 位作者 张明辉 胡晓婕 栗相如 《山西农业大学学报(自然科学版)》 CAS 2012年第3期193-197,共5页
采用10%PEG-6000模拟干旱胁迫,研究了抗旱品种晋大74与不抗旱品种晋大75两种大豆幼苗在水分胁迫及复水后叶片MDA含量、O2-·含量、SOD、CAT、APX及POD等的活性变化,旨在揭示抗氧化酶对干旱及复水的响应机制。结果表明,在干旱胁迫下... 采用10%PEG-6000模拟干旱胁迫,研究了抗旱品种晋大74与不抗旱品种晋大75两种大豆幼苗在水分胁迫及复水后叶片MDA含量、O2-·含量、SOD、CAT、APX及POD等的活性变化,旨在揭示抗氧化酶对干旱及复水的响应机制。结果表明,在干旱胁迫下,两种大豆叶片MDA及O2-·,含量都高于对照,且晋大75增加幅度显著大于晋大74;复水后晋大74中MDA及O2-·接近于对照水平,表明旱后复水产生了补偿效应。干旱胁迫下,晋大74通过保持较高的SOD活性或较低的APX、CAT降幅以减弱活性氧伤害,而旱后复水过程中晋大74通过维持较高的SOD、APX、CAT酶活性,利用其协同作用有效清除活性氧,避免膜伤害。总之,耐旱品种在干旱及复水过程中具有更强的抗氧化修复能力。 展开更多
关键词 大豆 干旱 复水 抗氧化酶 补偿效应
下载PDF
Analysis of QTLs for the Trichome Density on the Upper and Downer Surface of Leaf Blade in Soybean [Glycine max (L.) Merr.] 被引量:6
5
作者 DU Wei-jun YU De-yue FU San-xiong 《Agricultural Sciences in China》 CAS CSCD 2009年第5期529-537,共9页
Trichomes (plant hairs) are present on nearly all land plants and are known to play important roles in plant protection, specifically against insect herbivory, drought, and UV radiation. The identification of quanti... Trichomes (plant hairs) are present on nearly all land plants and are known to play important roles in plant protection, specifically against insect herbivory, drought, and UV radiation. The identification of quantitative trait loci (QTL) associated with trichome density should help to interpret the molecular genetic mechanism of soybean trichome density. 184 recombinant inbred lines (RILs), derived from a cross between soybean cultivars Kefeng 1 and Nannong 1138-2 were used as segregating population for evaluation of TDU (trichome density on the upper surface of leaf blade) and TDD (trichome density on the downer surface of leaf blade). A total of 15 QTL were detected on molecular linkage groups (MLG) A2, Dla, Dlb, E and H by composite interval mapping (CIM) and among all the QTL, qtuA2-1, qtuD 1 a-1, qtuD lb-2, qtuH-2 qtuE-1, qtdDlb-2, and qtdH- 2 were affirmed by multiple interval mapping (MIM). The contribution ofphenotypic variance of qtuH-2 was 31.81 and 29.4% by CIM and MIM, respectively, suggesting it might be major gene Ps loci. Only 10 pairs of main QTL interactions for TDU were detected, explained a range of 0.2-5.1% of phenotypic variations for each pair for a total of 22.8%. The QTL on MLG Dlb affecting trichome density were mapped near to Rsc-7 conditioning resistance to SMV (soybean mosaic virus). This study showed that the genetic mechanism of trichome density was the mixed major gene and polygene inheritance, and also suggested that the causal nature between trichome density and other agronomic traits. 展开更多
关键词 soybean [Glycine max (L.) merr.] TDU TDD RI Ls QTL analysis
下载PDF
Genetic Analysis of Combining Abilities and Heterosis for the Contents of Soybean Isoflavone and Its Components Among the Soybean Varieties [Glycine max (L.) Merr.] 被引量:2
6
作者 LIANGHui-zhen LIWei-dong +1 位作者 WANGHui FANGXuan-jun 《Agricultural Sciences in China》 CAS CSCD 2005年第7期555-560,共6页
The genetic analysis of soybean isoflavone content and its components were carried out based on the NC Ⅱ matingdesign in eight soybean varieties. The results showed that the isoflavone contents and its components of ... The genetic analysis of soybean isoflavone content and its components were carried out based on the NC Ⅱ matingdesign in eight soybean varieties. The results showed that the isoflavone contents and its components of soybean seedare quite differences among the tested materials, the contents of isoflavone and daidzein are controlled not only byadditive effects and but also by non-additive effects, while the content of genistin is dominated by non-additive effects,and genistein, glycitin and daidzin are mainly controlled by additive effects. There are significant differences in thecontents of isoflavone and its components among the combinations derived from different parents. Results also indicatedthat the tested traits are negatively heterosis except for the contens of daidzein and daidzin are positively heterosis basedon the data of the GCA and SCA in average heterosis values. In this research we have a suggestion that soybean varietywith high isoflavone should be used as one of the parents in the breeding program, and it is the best choice that thecombinations crossed between two high isoflavone varieties or a high variety and a low one. 展开更多
关键词 Soybean[Glycine max (L.) merr.] ISOFLAVONE Component of isoflavone Combining ability HETEROSIS
下载PDF
Genetic Analysis of Embryo, Cytoplasm and Maternal Effects and Their Environment Interactions for Isoflavone Content in Soybean [Glycine max (L.) Merr.] 被引量:2
7
作者 LIANG Hui-zhen WANG Shu-feng +3 位作者 WANG Ting-feng ZHANG Hai-yang ZHAO Shuang-jin ZHANG Meng-chen 《Agricultural Sciences in China》 CAS CSCD 2007年第9期1051-1059,共9页
Soybean seed products contain isoflavones (genistein, daidzein, and glycitein) that display biological effects when ingested by humans and animals. These effects are species, dose and age dependent. Therefore, the c... Soybean seed products contain isoflavones (genistein, daidzein, and glycitein) that display biological effects when ingested by humans and animals. These effects are species, dose and age dependent. Therefore, the content and quality of isoflavones in soybeans is a key factor to the biological effect. Our objective was to identify the genetic effects that underlie the isoflavone content in soybean seeds. A genetic model for quantitative traits of seeds in diploid plants was applied to estimate the genetic main effects and genotype x environment (GE) interaction effects for the isoflavone content (IC) of soybean seeds by using two years experimental data with an incomplete diallel mating design of six parents. Results showed that the IC of soybean seeds was simultaneously controlled by the genetic effects of maternal, embryo, and cytoplasm, of which maternal genetic effects were most important, followed by embryo and cytoplasmic genetic effects. The main effects of different genetic systems on IC trait were more important than environment interaction effects. The strong dominance effects on isoflavone from residual was made easily by environment conditions. Therefore, the improvement of the IC of soybean seeds would be more efficient when selection is based on maternal plants than that on the single seed. Maternal heritability (65.73%) was most important for IC, followed by embryo heritability (25.87%) and cytoplasmic heritability (8.39%). Based on predicated genetic effects, Yudou 29 and Zheng 90007 were better than other parents for increasing IC in the progeny and improving the quality of soybean, The significant effects of maternal and embryo dominance effects in variance show that the embryo heterosis and maternal heterosis are existent and uninfluenced by environment interaction effects. 展开更多
关键词 isoflavone content (IC) Glycine max (L.) merr. (soybean) genetic effect HERITABILITY
下载PDF
Anti-melanoma action of small molecular peptides derived from Brucea javanica(L.)Merr.globulin in vitro 被引量:1
8
作者 Yi Zhao Huiyun Wang +5 位作者 Yanyan Yin Haoyu Shi Dong Wang Fengjue Shu Rongchun Wang Lingzhi Wang 《Journal of Traditional Chinese Medical Sciences》 2022年第1期85-91,共7页
Objective:The morbidity of malignant melanoma keeps increasing annually.It has high risks of metastasis,drug resistance,and poor prognosis in clinics.Moreover,the available medicines used commonly,such as dacarbazine,... Objective:The morbidity of malignant melanoma keeps increasing annually.It has high risks of metastasis,drug resistance,and poor prognosis in clinics.Moreover,the available medicines used commonly,such as dacarbazine,temozolomide,the v-Raf murine sarcoma viral oncogene homolog B1(BRAF)inhibitor vemurafenib,and the programmed cell death protein 1 inhibitor pembrolizumab,have some limitations at some extent.Therefore,a more effective therapeutic strategy is still urgently necessary.Methods:In this study,Brucea javanica(L.)Merr.globulins were hydrolyzed with pepsin,then ultra-filtrated to collect small molecular peptides(≤3 kDa).The peptides were then analyzed by antiproliferative assay,cell-cycle distribution,apoptosis assay,and in vitro wound-scratch assay.Finally,western blotting was conducted to elucidate the underlying anti-melanoma mechanism.Results:The small molecular peptide from B.javanica significantly inhibited malignant melanoma cell proliferation with the IC_(50) of 2.72 mg/mL for 72 h.Further analysis indicated that B.javanica peptides arrested cell cycle at the S and G2/M phases and induced apoptosis by upregulating p21,p53,Bax,caspase-3,and cleaved PARP while downregulating Bcl-2 expression.The inhibitory migration effects were also confirmed by wound-healing assay.Conclusion:The small molecular biopeptides from B.javanica may be a promising bioactive agent candidate for melanoma treatment. 展开更多
关键词 Brucea javanica(L.)merr. Melanoma GLOBULIN In vitro wound-scratch assay Peptide Cell-cycle assay Apoptosis assay Hydrolyze
下载PDF
Anti-inflammatory effects of ethanol fraction from Disporum cantoniense (Lour.) Merr. in LPS-stimulated RAW264. 7 cells
9
《中国药理学通报》 CAS CSCD 北大核心 2015年第B11期118-118,共1页
Aim To evaluate the anti-inflammatory effects of ethanol fraction prepared from Disporum cantoniense (Lour.) Merr. 70% ethanol extract with a cellular model of LPS-stimulated RAW264.7 cell. Methods RAW264.7 cells we... Aim To evaluate the anti-inflammatory effects of ethanol fraction prepared from Disporum cantoniense (Lour.) Merr. 70% ethanol extract with a cellular model of LPS-stimulated RAW264.7 cell. Methods RAW264.7 cells were treated with different concentrations of ethanol fraction (25,50 and 100 g · L^-1 ) and stimu- the conditioned media was collected and analyzed. The quantity of ni- lated with LPS (10 μg· L^-1) for 24 hours, tric oxide (NO) was assayed by Griess reagent. The production of inflammatory mediators was determined by en- zyme-linked immunosorbent assay (ELISA), such as prostaglandin E2 (PGE2), tumor necrosis factor ot (TNF-ot) interleukin- 1 β (IL-1 β) and interleukin 6 (IL-6) in cell supernatant. The concentrations of inflammatory medi- 9 ators were calculated according to the standard curves generated by each of the recombinant cytokines provided with LPS can induce RAW264.7 cells to promote the pro- the ELISA kits. Results Compared with the control group, TNF-α, IL-1β and IL-6. Compared with the duction of inflammatory mediators (P 〈 0.01 ) , including NO, PGE2, model group, ethanol fraction significantly suppressed LPS induced release of inflammatory mediators such as nitric NO, PGE2, TNF-α, IL-1β and IL-6 in a good dose dependent manner (P 〈 0.05, P 〈 0.01 ). Conclusions Eth- anol fraction could significantly inhibit the production of LPS-induced inflammatory response in RAW264.7 cells, and its anti-inflammatory effect may be related to reduce the production of inflammatory mediators NO, PGE2, TNF-α, IL-1 β and IL-6. These results demonstrate that the ethanol fraction is the bioactive component of Disporum can- toniense (Lour.) Merr. , and the ethanol fraction will be further developed as a herbal remedy for preventive and/ or curative purposes in various inflammatory diseases. 展开更多
关键词 Disporum cantoniense ( Lour. ) merr. LPS ANTI-INFLAMMATORY effects INFLAMMATORY MEDIATORS NO PGE2 TNF-α IL-6
下载PDF
Antioxidant,cytotoxic,and anti-venom activity of Alstonia parvifolia Merr.Bark
10
作者 Maria Carmen S.Tan Mary Stephanie S.Carranza +4 位作者 Virgilio C.Linis Raymond S.Malabed Yves Ira A.Reyes Francisco C.Franco,Jr. Glenn G.Oyong 《Asian Pacific Journal of Tropical Biomedicine》 SCIE CAS 2021年第10期460-468,共9页
Objective:To evaluate antioxidant,cytotoxic,and anti-venom capacity of crude bark extracts of Alstonia parvifolia Merr.Methods:Gas chromatography-mass spectrometry(GC-MS)and energy dispersive X-ray analyses were accom... Objective:To evaluate antioxidant,cytotoxic,and anti-venom capacity of crude bark extracts of Alstonia parvifolia Merr.Methods:Gas chromatography-mass spectrometry(GC-MS)and energy dispersive X-ray analyses were accomplished to characterize the chemical constituents of Alstonia parvifolia.Biochemical characterization was evaluated using an inhibitory phospholipase A_(2)(PLA_(2))assay,DPPH,and cytotoxicity assays.Using the constituents listed in the GC-MS analyses,molecular docking was conducted to inspect the binding energies between the chosen compounds and selected PLA_(2) isoforms.Results:GC-MS analyses showed that the Alstonia parvifolia crude extract consisted predominantly of acetylmarinobufogenin(14.89%),γ-sitosterol(10.44%),3-O-methyl-D-glucose(5.88%),3,5-dimethoxy-4-hydroxyphenylacetic acid(5.30%),(2α,5α)-17-methoxyaspidofracti­nin-3-one(AFM)(4.08%),and 2,3,5,6,7,8,9-heptahydro-1-phenyl-5-(p-chlorophenylimino)-1H-benzo[e][1,4]thiazepine(HPT)(1.37%).The principal elemental components of Alstonia parvifolia were Ca(4.012%)and K(1.496%),as exhibited by energy dispersive X-ray examination.Alstonia parvifolia showed significant free radical scavenging ability(IC_(50):0.287 mg/mL)and was non-cytotoxic to normal HDFn cells(IC_(50)>100μg/mL).Moreover,Alstonia parvifolia was favorably cytotoxic to MCF-7(IC_(50):4.42µg/mL),followed by H69PR,HT-29,and THP-1,with IC_(50) values of 4.94,5.07,and 6.27µg/mL,respectively.Alstonia parvifolia also displayed notable inhibition against PLA_(2) activity of Naja philippinensis Taylor venom with IC_(50) of(15.2±1.8)μg/mL.Docking and cluster analyses projected negative binding energies from AFM(−6.36 to−9.68 kcal/mol),HPT(−7.38 to−9.77 kcal/mol),and acetylmarinobufogenin(−7.22 to−9.59 kcal/mol).These calculations were for the particular interactions of Alstonia parvifolia constituents to PLA_(2) homologues where the utmost affinity was detected in HPT owing to the dipole interactions with amino acid residues.Conclusions:The bark extract of Alstonia parvifolia shows great potential as an anti-venom agent due to its low cytotoxic profile,remarkable PLA_(2) inhibition,and docking binding energies between its bioactive constituents and PLA_(2) homologues. 展开更多
关键词 Alstonia parvifolia merr. Naja philippinensis Taylor Gas chromatography-electron ionization-mass spectrometry Secretory phospholipase A_(2) Cytotoxicity assay Anti-venom
下载PDF
Proteomic Studies of Petal-specific Proteins in Soybean [Glycine Max(L.)Merr.] Florets
11
作者 Guo Fang-liang Liu Han-miao +7 位作者 Luo Ting-ting Fang Si-jia Pang Ze Yang Ming-ming Wei Xiao-shuang Song Bo Liu Shan-shan Li Wen-bin 《Journal of Northeast Agricultural University(English Edition)》 CAS 2019年第1期10-18,共9页
A survey of petal-specific proteomes of soybean(Glycine max(L.) Merr[Non-italic].) was conducted comparing protein expression profiles in different petals. Two-dimensional polyacrylamide gel electrophoresis reference ... A survey of petal-specific proteomes of soybean(Glycine max(L.) Merr[Non-italic].) was conducted comparing protein expression profiles in different petals. Two-dimensional polyacrylamide gel electrophoresis reference maps of protein extracts from standard petals(SP), lateral wings(LW), keel petals(KP), and reproductive organs(RO)(a mixture of stamen and carpel) were obtained. Protein expression in the three petal types was compared using Image Master TM 2 D platinum 6.0 software. This indicated that the proportion of homologous proteins between SP and LW was 59.27%, between SP and KP was 61.48%, and between LW and KP was 60.05%. Within a mass range of 6.5-200.0 ku and pH 4.0-7.0, approximately 590, 646, 544, and 700 protein spots were detected in SP, LW, KP, and RO, respectively. A total of 82 differentially expressed proteins were detected. Sixty-four of these detected spots were differentially expressed and showed more than 2-fold changes in abundance; of these 64 proteins, 26 showed increased expression and 38 showed decreased expression. Among these spots, single organ-specific proteins were also identified.They were ID 49(60.9 ku), ID 45(50.0 ku), and ID 46(40.5 ku) in RO, ID 98(42.0 ku) in SP, and ID 05(29.0 ku) in KP. A total of 14 protein spots from 82 differentially expressed proteins were identified with LC-MS/MS. Further protein identification was conducted using the SwissProt and NCBInr databases. The identified proteins and their putative functions were discussed further. This was the first study reporting the comparison of petal protein profiles of soybean florets using proteomics tools. 展开更多
关键词 soybean(Glycine max(L.) merr.) 2D-PAGE LC-MS/MS PETAL protein
下载PDF
Research on Zhuang Medicine Scheflera kwangsiensis Merr.ex Li
12
作者 Can LI Ao XIE +4 位作者 Yongjing SU Wenyi WEI Gan LUO Haicheng WEN Wei WEI 《Agricultural Biotechnology》 CAS 2021年第2期122-124,132,共4页
Zhuang medicine Scheflera kwangsiensis Merr.ex Li is a plant of Schefflera in Araliaceae,and its roots,stems and leaves are used as a medicine.In order to fully understand the development and utilization of S.kwangsie... Zhuang medicine Scheflera kwangsiensis Merr.ex Li is a plant of Schefflera in Araliaceae,and its roots,stems and leaves are used as a medicine.In order to fully understand the development and utilization of S.kwangsiensis resources,we analyzed and summarized literatures on crude drug research,planting distribution,harvesting and processing,chemical components,pharmacological effects and quality testing of S.kwangsiensis,aiming to provide a reference basis for establishing the quality standard of Zhuang medicine S.kwangsiensis. 展开更多
关键词 Zhuang medicine Scheflera kwangsiensis merr.ex Li Chemical component Quality standard
下载PDF
Volatile oil from Litsea lancilimba Merr.: a review of its chemical structure and biological activity
13
作者 Yijie Zhang Ming Bai +2 位作者 Weiyu Zhou Xiaoxiao Huang Shaojiang Song 《Asian Journal of Traditional Medicines》 CAS 2022年第4期181-185,共5页
Litsea lancilimba Merr.is a Cinnamomum plant of Lauraceae.Phytochemical investigations of the Litsea lancilimba Merr.have resulted in the isolation of Volatile oil,flavonoid glycosides,tannins,alkaloids,lignans,organi... Litsea lancilimba Merr.is a Cinnamomum plant of Lauraceae.Phytochemical investigations of the Litsea lancilimba Merr.have resulted in the isolation of Volatile oil,flavonoid glycosides,tannins,alkaloids,lignans,organic acids and so on.Studies have showed that volatile oil is the main chemical component.Recent trials have demonstrated the efficacy of Litsea lancilimba Merr.in strengthening the function of stomach.The fruits have also been demonstrated to possess anti-inflammatory and bacteriostatic activities.This review deals mainly with the chemical structure and biological activities of Litsea lancilimba Merr.oil. 展开更多
关键词 Litsea lancilimba merr. volatile oil chemical composition pharmacological activity
下载PDF
Network pharmacology-based virtual screening of the active volatile oil ingredients of Litsea lancilimba Merr. and their potential targets for treating liver cancer
14
作者 Yijie Zhang Ming Bai +2 位作者 Weiyu Zhou Xiaoxiao Huang Shaojiang Song 《Asian Journal of Traditional Medicines》 CAS 2022年第2期47-50,共4页
Liver cancer remains the dominant cause of cancer-related death, despite the advent of targeted therapies and immunotherapies. Therefore, there is an urgent need to explore novel chemotherapeutic agents and effective ... Liver cancer remains the dominant cause of cancer-related death, despite the advent of targeted therapies and immunotherapies. Therefore, there is an urgent need to explore novel chemotherapeutic agents and effective strategies against the cancer. There are a lot of monoterpenes and sesquiterpenoids in L. lancilimba. It has been reported that monoterpenes and sesquiterpenoids have certain anti-tumor effects. Literature investigation has also shown that Litsea lancilimba Merr. has antibacterial and antiviral effects. In this experiment, we used network pharmacology to screen the active compounds from L. lancilimba and their potential targets for treating liver cancer. Four active volatile oil ingredients and four potential targets have been identified. Our results provide the lead compound from L. lancilimba in the treatment of liver cancer. 展开更多
关键词 Litsea lancilimba merr. network pharmacology liver cancer
下载PDF
垄作和覆膜下盐碱地水盐运移和大豆产量的变化
15
作者 梁新书 张凯 +2 位作者 廉晓娟 王艳 薛铸 《湖北农业科学》 2024年第6期1-4,共4页
选择河北省黄骅市中度盐碱土区布置夏播大豆[Glycine max(L.)Merr.]田间试验,共设平播(对照)、平播覆膜、垄作及垄作覆膜4个处理,研究垄作和覆膜对土壤水盐运移和大豆产量的影响。结果表明,与传统平播方式相比,平播覆膜处理对土壤水盐... 选择河北省黄骅市中度盐碱土区布置夏播大豆[Glycine max(L.)Merr.]田间试验,共设平播(对照)、平播覆膜、垄作及垄作覆膜4个处理,研究垄作和覆膜对土壤水盐运移和大豆产量的影响。结果表明,与传统平播方式相比,平播覆膜处理对土壤水盐运移和大豆产量的影响不显著;垄作处理能显著改变土壤水盐分布,特别是大豆生长中后期降雨量开始减少后,垄作定植沟会产生叠加集雨效果,显著提高大豆生长中期0~20 cm和20~40 cm土壤含水量,减缓作物生长后期向表层返盐进程,有效降低土壤表层盐分含量,对保障大豆植株生长和产量均有一定的促进效果,可增产27.2%;垄作覆膜处理效果与垄作处理类似,覆膜措施影响不显著。垄作技术可以作为滨海盐碱地夏播大豆种植的农耕措施。 展开更多
关键词 盐碱地 大豆[Glycine max(L.)merr.] 垄作 覆膜 水盐运移 产量
下载PDF
Research Progress of Paederia scandens(Lour.)Merr in Modern Pharmacy
16
作者 TANG Chao-ling HAN Dong-miao +3 位作者 SUN Wan-ying HUANG Zi-bao WANG Rui-qi ZHANG Xiao-po 《Journal of Hainan Medical University》 CAS 2023年第20期1-5,共5页
Paederia scandens(Lour.)Merr.is a traditional Chinese medicine,which mainly has the functions of analgesia,detoxification,anti-inflammatory and anticonvulsant.Modern studies show that the main chemical constituents of... Paederia scandens(Lour.)Merr.is a traditional Chinese medicine,which mainly has the functions of analgesia,detoxification,anti-inflammatory and anticonvulsant.Modern studies show that the main chemical constituents of this plant are iridoids and volatile oil,which have biological activities such as analgesia,anti-inflammatory,hepatoprotection,renoprotection and antibacterial.This review highlights the chemical constituents and biological activities of P.scandens based on studies published in last decades and provides the references for the further development and utilization of this medicinal plant. 展开更多
关键词 Paederia scandens(Lour.)merr Chemical constituents Biological activities
下载PDF
不同栽植环境下守宫木的生理响应及其耐阴性评价
17
作者 梁小春 姜星宇 +4 位作者 郭品湘 杨秀玲 李琳 蒋若琳 王凌晖 《湖北农业科学》 2024年第10期102-105,175,共5页
为探究不同栽植环境对守宫木[Sauropus androgynus(L.)Merr.]生理特性的影响,并对其耐阴性进行评价,以3年生守宫木扦插苗为研究对象,分别在露天(100%光照强度)、林下(65%光照强度)、大棚(30%光照强度)3种环境下栽植,测定不同环境下守宫... 为探究不同栽植环境对守宫木[Sauropus androgynus(L.)Merr.]生理特性的影响,并对其耐阴性进行评价,以3年生守宫木扦插苗为研究对象,分别在露天(100%光照强度)、林下(65%光照强度)、大棚(30%光照强度)3种环境下栽植,测定不同环境下守宫木叶片光合色素含量、瞬时光合特性及渗透调节物质含量。结果表明,林下种植、棚下种植守宫木的叶绿素a及叶绿素(a+b)含量均极显著高于露天环境;随着遮阴程度的增加,叶片净光合速率先增后减,在林下种植时最高,而气孔导度、胞间CO_(2)浓度及蒸腾速率则表现为露天种植>林下种植>棚下种植,随着遮阴程度的增加逐渐下降。可溶性糖、可溶性蛋白质含量随着遮阴程度增加而先升后降,林下种植时达到最大;游离脯氨酸和MDA含量随着遮阴程度增加不断下降,露天种植时达到最大。隶属函数分析表明,林下环境的守宫木植株光合及生理状态最佳,过强或过弱光照环境均不适合其生长。 展开更多
关键词 守宫木[Sauropus androgynus(L.)merr.] 栽植环境 耐阴性 生理响应
下载PDF
牛白藤化学成分、药理作用及临床应用研究
18
作者 银胜高 陈诗曼 +2 位作者 陆海琳 岑燕霞 程若敏 《药学研究》 CAS 2024年第3期261-266,共6页
牛白藤[Hedyotis hedyotidea(DC.)Merr.]为茜草科耳草属干燥全草,在我国广西、广东、福建、台湾地区、贵州、云南等地广泛分布,资源丰富。现代研究表明,牛白藤中含有萜类、甾体类、香豆素类、木脂素类等化合物,具有镇痛、抗肿瘤、抗菌... 牛白藤[Hedyotis hedyotidea(DC.)Merr.]为茜草科耳草属干燥全草,在我国广西、广东、福建、台湾地区、贵州、云南等地广泛分布,资源丰富。现代研究表明,牛白藤中含有萜类、甾体类、香豆素类、木脂素类等化合物,具有镇痛、抗肿瘤、抗菌消炎、抗白血病效应等作用。目前,牛白藤的药理活性研究大多以萜类为主,但是相关的药理机制研究较少。因此,本文对牛白藤的化学成分与药理作用及临床应用研究进行归纳总结,为今后对牛白藤的开发利用提供理论参考。 展开更多
关键词 牛白藤 化学成分 药理研究 临床应用
下载PDF
牛白藤红外指纹图谱研究
19
作者 银胜高 陈燕燕 +2 位作者 陈诗曼 岑燕霞 陆海琳 《食品与药品》 CAS 2024年第2期144-147,共4页
目的探索牛白藤红外光谱(IR)快速鉴定技术。方法采用傅里叶变换红外光谱(FT-IR)对牛白藤原药材进行整体分析。结果获得牛白藤的红外指纹图谱特征吸收峰有:3418,2925,2854,1723,1650,1514,1401,1319,1267,1155,1104,1054,1030,919,811,78... 目的探索牛白藤红外光谱(IR)快速鉴定技术。方法采用傅里叶变换红外光谱(FT-IR)对牛白藤原药材进行整体分析。结果获得牛白藤的红外指纹图谱特征吸收峰有:3418,2925,2854,1723,1650,1514,1401,1319,1267,1155,1104,1054,1030,919,811,782,763,664,592,538,520 cm^(-1),并确定1267,1030,919 cm^(-1)为牛白藤镇痛抗炎药效成分熊果酸的红外特征指示峰。各样品IR相似度在0.9003~0.9895范围内,因此拟定牛白藤的IR相似度阈值为0.90。结论牛白藤的FT-IR指纹图谱可为其快速鉴定及质量控制提供科学依据。 展开更多
关键词 牛白藤 傅里叶变换红外光谱 指纹图谱
下载PDF
Genome-wide association with transcriptomics reveals a shade-tolerance gene network in soybean
20
作者 Yanzhu Su Xiaoshuai Hao +11 位作者 Weiying Zeng Zhenguang Lai Yongpeng Pan Can Wang Pengfei Guo Zhipeng Zhang Jianbo He Guangnan Xing Wubin Wang Jiaoping Zhang Zudong Sun Junyi Gai 《The Crop Journal》 SCIE CSCD 2024年第1期232-243,共12页
Shade tolerance is essential for soybeans in inter/relay cropping systems.A genome-wide association study(GWAS)integrated with transcriptome sequencing was performed to identify genes and construct a genetic network g... Shade tolerance is essential for soybeans in inter/relay cropping systems.A genome-wide association study(GWAS)integrated with transcriptome sequencing was performed to identify genes and construct a genetic network governing the trait in a set of recombinant inbred lines derived from two soybean parents with contrasting shade tolerance.An improved GWAS procedure,restricted two-stage multi-locus genome-wide association study based on gene/allele sequence markers(GASM-RTM-GWAS),identified 140 genes and their alleles associated with shade-tolerance index(STI),146 with relative pith cell length(RCL),and nine with both.Annotation of these genes by biological categories allowed the construction of a protein–protein interaction network by 187 genes,of which half were differentially expressed under shading and non-shading conditions as well as at different growth stages.From the identified genes,three ones jointly identified for both traits by both GWAS and transcriptome and two genes with maximum links were chosen as beginners for entrance into the network.Altogether,both STI and RCL gene systems worked for shade-tolerance with genes interacted each other,this confirmed that shadetolerance is regulated by more than single group of interacted genes,involving multiple biological functions as a gene network. 展开更多
关键词 Soybean(Glycine max(L.)merr.) SHADE-TOLERANCE Restricted two-stage multi-locus genomewide association study based on gene/allele sequence markers(GASM-RTM-GWAS) Shade-tolerance index(STI) Relative cell length(RCL) Transcriptome
下载PDF
上一页 1 2 45 下一页 到第
使用帮助 返回顶部