Medicinal and aromatic plant science and biotechnology最新文献

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Taxonomy and Chemotaxonomy of the Genus Hypericum. 金丝桃属植物的分类与化学分类。
Sara L Crockett, Norman K B Robson
{"title":"Taxonomy and Chemotaxonomy of the Genus Hypericum.","authors":"Sara L Crockett, Norman K B Robson","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The genus Hypericum L. (St. John's Wort, Hypericaceae) includes, at the most recent count, 469 species that are either naturally occurring on, or which have been introduced to, every continent in the world, except Antarctica. These species occur as herbs, shrubs, and infrequently trees, and are found in a variety of habitats in temperate regions and in high mountains in the tropics, avoiding only zones of extreme aridity, temperature and/or salinity. Monographic work on the genus has resulted in the recognition and description of 36 taxonomic sections, delineated by specific combinations of morphological characteristics and biogeographic distribution ranges. Hypericum perforatum L. (Common St. John's wort, section Hypericum), one of the best-known members of the genus, is an important medicinal herb of which extracts are taken for their reported activity against mild to moderate depression. Many other species have been incorporated in traditional medicine systems in countries around the world, or are sold as ornamentals. Several classes of interesting bioactive secondary metabolites, including naphthodianthrones (e.g. hypericin and pseudohypericin), flavonol glycosides (e.g. isoquercitrin and hyperoside), biflavonoids (e.g. amentoflavone), phloroglucinol derivatives (e.g. hyperforin and adhyperforin) and xanthones have been identified from members of the genus. A general overview of the taxonomy of the genus and the distribution of relevant secondary metabolites is presented.</p>","PeriodicalId":89602,"journal":{"name":"Medicinal and aromatic plant science and biotechnology","volume":"5 Special 1","pages":"1-13"},"PeriodicalIF":0.0,"publicationDate":"2011-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3364714/pdf/ukmss-47035.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"30664479","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Morphological and Phytochemical Diversity among Hypericum Species of the Mediterranean Basin. 地中海盆地金丝桃属植物形态和植物化学多样性。
Nicolai M Nürk, Sara L Crockett
{"title":"Morphological and Phytochemical Diversity among Hypericum Species of the Mediterranean Basin.","authors":"Nicolai M Nürk, Sara L Crockett","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The genus Hypericum L. (St. John's wort, Hypericaceae) includes more than 450 species that occur in temperature or tropical mountain regions of the world. Monographic work on the genus has resulted in the recognition and description of 36 taxonomic sections, delineated by specific combinations of morphological characteristics and biogeographic distribution. The Mediterranean Basin has been recognized as a hot spot of diversity for the genus Hypericum, and as such is a region in which many endemic species occur. Species belonging to sections distributed in this area of the world display considerable morphological and phytochemical diversity. Results of a cladistic analysis, based on 89 morphological characters that were considered phylogenetically informative, are given here. In addition, a brief overview of morphological characteristics and the distribution of pharmaceutically relevant secondary metabolites for species native to this region of the world are presented.</p>","PeriodicalId":89602,"journal":{"name":"Medicinal and aromatic plant science and biotechnology","volume":"5 Special 1","pages":"14-28"},"PeriodicalIF":0.0,"publicationDate":"2011-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3364718/pdf/ukmss-47036.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"30664480","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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