{"title":"Blue Fluorescent Chlorophyll Catabolites from Banana Leaves Hypermodified with Terpenoidic Groups Related to Abscisic Acid","authors":"Clemens Vergeiner, Bernhard Kräutler","doi":"10.1002/hlca.202500042","DOIUrl":null,"url":null,"abstract":"<p>In senescent leaves of banana (<i>Musa acuminata</i>) hypermodified fluorescent chlorophyll (Chl) catabolites (<i>hm</i>FCCs) accumulate and give these leaves an easily observable blue fluorescence. Non-fluorescent Chl-catabolites (NCCs) are not detected, the typical colourless Chl-catabolites that accumulate in most de-greened plant leaves. Here, we report the isolation and spectroscopic structural characterization of two very lipophilic <i>hm</i>FCCs, named <i>Ma</i>-FCC-78 and <i>Ma</i>-FCC-79. These two novel <i>Ma</i>-FCCs are hypermodified with megastigmane (Megs) residues, terpenoids related to the plant hormone abscisic acid (ABA). Thus, these hypermodified <i>Ma</i>-FCCs from senescent banana leaves may possibly play novel physiological roles, on the one hand, in the regulation of stress response, a fundamental role of ABA, on the other hand, by providing some of the cytotoxic, antibacterial and antioxidant activities of Megs.</p>","PeriodicalId":12842,"journal":{"name":"Helvetica Chimica Acta","volume":"108 6","pages":""},"PeriodicalIF":1.5000,"publicationDate":"2025-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/hlca.202500042","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Helvetica Chimica Acta","FirstCategoryId":"92","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1002/hlca.202500042","RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
In senescent leaves of banana (Musa acuminata) hypermodified fluorescent chlorophyll (Chl) catabolites (hmFCCs) accumulate and give these leaves an easily observable blue fluorescence. Non-fluorescent Chl-catabolites (NCCs) are not detected, the typical colourless Chl-catabolites that accumulate in most de-greened plant leaves. Here, we report the isolation and spectroscopic structural characterization of two very lipophilic hmFCCs, named Ma-FCC-78 and Ma-FCC-79. These two novel Ma-FCCs are hypermodified with megastigmane (Megs) residues, terpenoids related to the plant hormone abscisic acid (ABA). Thus, these hypermodified Ma-FCCs from senescent banana leaves may possibly play novel physiological roles, on the one hand, in the regulation of stress response, a fundamental role of ABA, on the other hand, by providing some of the cytotoxic, antibacterial and antioxidant activities of Megs.
期刊介绍：
Helvetica Chimica Acta, founded by the Swiss Chemical Society in 1917, is a monthly multidisciplinary journal dedicated to the dissemination of knowledge in all disciplines of chemistry (organic, inorganic, physical, technical, theoretical and analytical chemistry) as well as research at the interface with other sciences, where molecular aspects are key to the findings. Helvetica Chimica Acta is committed to the publication of original, high quality papers at the frontier of scientific research. All contributions will be peer reviewed with the highest possible standards and published within 3 months of receipt, with no restriction on the length of the papers and in full color.
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