目的利用文献计量学和可视化分析技术,对八角莲在国内外的研究现状和演化趋势做系统性地梳理和分析,探讨八角莲研究现状以及最新研究热点。方法通过中国知网(CNKI)和Web of science(WOS)数据库检索与八角莲相关且符合纳入标准的文献,运...目的利用文献计量学和可视化分析技术,对八角莲在国内外的研究现状和演化趋势做系统性地梳理和分析,探讨八角莲研究现状以及最新研究热点。方法通过中国知网(CNKI)和Web of science(WOS)数据库检索与八角莲相关且符合纳入标准的文献,运用CiteSpace软件对核心作者群、研究机构间合作关系以及关键词进行分析。结果共纳入1793篇中文文献,英文文献771篇。中文发文量最高的作者是曾抗;英文发文量最高的作者是Arora Rajesh;国内年发文量大体呈现先增后减趋势;上海医药工业研究院是研究八角莲最多的机构,研究领域内各机构间的交流合作有待进一步加深。关键词分析显示八角莲的研究内容主要集中在抗肿瘤应用、衍生物的提取与合成。结论八角莲所含木脂素类成分及其相关衍生物的提取与合成,与其在尖锐湿疣治疗、抗肿瘤方面的临床应用是八角莲目前的研究热点;八角莲及其活性成分致毒性的损伤机制与治疗方法,将成为未来研究的潜在热点。展开更多
Perilla essential oil(PEO)is reported as an aromatic yellowish oily substance with a volatile odor extracted from perilla leaves.It exhibits various biological activities except anti-tobacco mosaic virus(TMV)activity....Perilla essential oil(PEO)is reported as an aromatic yellowish oily substance with a volatile odor extracted from perilla leaves.It exhibits various biological activities except anti-tobacco mosaic virus(TMV)activity.In this study,we investigated the main components and anti-TMV activity of PEO,identified its primary active components,and examined its mode of action.The results indicated that PEO exhibited anti-TMV activity(65.58%)at 800μg/mL,with perillaldehyde identified as the main active component.The protective,curative,and inactivation activities of perillaldehyde at 800μg/mL were 80.41%,73.42%,and 34.93%,respectively.These values were significantly higher than those of the control drug(commercial chitosan oligosaccharide)and the protective and curative activities were superior to those of ningnanmycin.The results of the mode of action showed that perillaldehyde induced a hypersensitive response(HR)in tobacco.Transmission electron microscope(TEM)observation revealed that perillaldehyde had no direct effect on TMV particles.The treatment of Nicotiana glutinosa with perillaldehyde at 800μg/mL indicated that perillaldehyde had significant induction activity(58.46%).The expression of three pathogenesis-related tobacco genes(PR genes),including nonexpressor of pathogenesis-related genes 1(NPR1),pathogenesis-related protein 1 gene(PR1),and pathogenesis-related protein 5 gene(PR5),were induced and upregulated by perillaldehyde treatment.Perillaldehyde also induced the overexpression of the phenylalanine ammonia-lyase gene(PAL),respiratory burst oxidase homolog B gene(RBOHB),and protochlorophyllide oxidoreductase gene 1(POR1).Furthermore,perillaldehyde increased the salicylic acid(SA)and H2O2 contents in tobacco leaves,and enhanced the activities of four defense enzymes:superoxide dismutase(SOD),catalase(CAT),peroxidase(POD),and phenylalanine ammonia-lyase(PAL).N.glutinosa was treated with perillaldehyde at 800μg/mL for 24 h,and the results showed that the highest SA and H_(2)O_(2) contents(1032.08 pmol/L and 23.40μmol/g FW,respectively)were obtained in tobacco leaves.Defense enzyme activities also reached a maximum at 800μg/mL,and the activities of CAT,PAL,POD,and SOD increased by 1.76,1.95,2.17,and 3.78 times,respectively,compared to the control.The results of the study showed that perillaldehyde may enhance resistance to pathogen infection by inducing systemic acquired resistance(SAR),which may contribute to the activation of SA signal transduction pathway.Therefore,perillaldehyde has the potential for application in agriculture as a novel antiviral agent and immune inducer.展开更多
文摘目的利用文献计量学和可视化分析技术,对八角莲在国内外的研究现状和演化趋势做系统性地梳理和分析,探讨八角莲研究现状以及最新研究热点。方法通过中国知网(CNKI)和Web of science(WOS)数据库检索与八角莲相关且符合纳入标准的文献,运用CiteSpace软件对核心作者群、研究机构间合作关系以及关键词进行分析。结果共纳入1793篇中文文献,英文文献771篇。中文发文量最高的作者是曾抗;英文发文量最高的作者是Arora Rajesh;国内年发文量大体呈现先增后减趋势;上海医药工业研究院是研究八角莲最多的机构,研究领域内各机构间的交流合作有待进一步加深。关键词分析显示八角莲的研究内容主要集中在抗肿瘤应用、衍生物的提取与合成。结论八角莲所含木脂素类成分及其相关衍生物的提取与合成,与其在尖锐湿疣治疗、抗肿瘤方面的临床应用是八角莲目前的研究热点;八角莲及其活性成分致毒性的损伤机制与治疗方法,将成为未来研究的潜在热点。
基金Supported by National Natural Science Foundation of China(No.32072444)National Natural Science Foundation of China(No.32060429)the key Project of Natural Science Foundation of Xinjiang Uygur Autonomous Region(No.2022D01D44).
文摘Perilla essential oil(PEO)is reported as an aromatic yellowish oily substance with a volatile odor extracted from perilla leaves.It exhibits various biological activities except anti-tobacco mosaic virus(TMV)activity.In this study,we investigated the main components and anti-TMV activity of PEO,identified its primary active components,and examined its mode of action.The results indicated that PEO exhibited anti-TMV activity(65.58%)at 800μg/mL,with perillaldehyde identified as the main active component.The protective,curative,and inactivation activities of perillaldehyde at 800μg/mL were 80.41%,73.42%,and 34.93%,respectively.These values were significantly higher than those of the control drug(commercial chitosan oligosaccharide)and the protective and curative activities were superior to those of ningnanmycin.The results of the mode of action showed that perillaldehyde induced a hypersensitive response(HR)in tobacco.Transmission electron microscope(TEM)observation revealed that perillaldehyde had no direct effect on TMV particles.The treatment of Nicotiana glutinosa with perillaldehyde at 800μg/mL indicated that perillaldehyde had significant induction activity(58.46%).The expression of three pathogenesis-related tobacco genes(PR genes),including nonexpressor of pathogenesis-related genes 1(NPR1),pathogenesis-related protein 1 gene(PR1),and pathogenesis-related protein 5 gene(PR5),were induced and upregulated by perillaldehyde treatment.Perillaldehyde also induced the overexpression of the phenylalanine ammonia-lyase gene(PAL),respiratory burst oxidase homolog B gene(RBOHB),and protochlorophyllide oxidoreductase gene 1(POR1).Furthermore,perillaldehyde increased the salicylic acid(SA)and H2O2 contents in tobacco leaves,and enhanced the activities of four defense enzymes:superoxide dismutase(SOD),catalase(CAT),peroxidase(POD),and phenylalanine ammonia-lyase(PAL).N.glutinosa was treated with perillaldehyde at 800μg/mL for 24 h,and the results showed that the highest SA and H_(2)O_(2) contents(1032.08 pmol/L and 23.40μmol/g FW,respectively)were obtained in tobacco leaves.Defense enzyme activities also reached a maximum at 800μg/mL,and the activities of CAT,PAL,POD,and SOD increased by 1.76,1.95,2.17,and 3.78 times,respectively,compared to the control.The results of the study showed that perillaldehyde may enhance resistance to pathogen infection by inducing systemic acquired resistance(SAR),which may contribute to the activation of SA signal transduction pathway.Therefore,perillaldehyde has the potential for application in agriculture as a novel antiviral agent and immune inducer.
