叶黄素 A 和 B，两种由葡萄孢菌引起的葡萄藤枯萎病的致病因子产生的植物毒性 1-取代的乙酮。
Luteoethanones A and B, two phytotoxic 1-substituted ethanones produced by a causal agent of Botryosphaeria dieback on grapevine.
机构信息
Dipartimento di Scienze Chimiche, Università di Napoli Federico II, Complesso Universitario Monte S. Angelo, Napoli, Italy.
National Wine and Grape Industry Centre, School of Agricultural and Wine Sciences, Charles Sturt University, Wagga Wagga, Australia.
出版信息
Nat Prod Res. 2021 Nov;35(22):4542-4549. doi: 10.1080/14786419.2020.1739045. Epub 2020 Mar 23.
Two new phytotoxic 1-substituted ethanones, named luteoethanones A and B, were isolated from , the causal agents of Botryosphaeria dieback in Australia. Luteoethanones A and B were characterized, by spectroscopic methods (essentially 1 D and 2 D NMR and HR ESIMS), as 1-(8-Methoxy-2,4-methyl-1-oxa-4-aza-spiro[2.5]octa-5,7-dien-6-yl)-ethanone and its 2-demethyl analogue. When assayed on detached grapevine leaves ( cv. Shiraz) both the compounds showed phytotoxic activity.
从澳大利亚葡萄黑痘病的病原菌中分离得到了两种新的具有植物毒性的 1-取代乙酮，命名为 luteoethanones A 和 B。通过光谱方法（主要是 1D 和 2D NMR 和 HR ESIMS），将 luteoethanones A 和 B 鉴定为 1-（8-甲氧基-2,4-二甲基-1-氧代-4-氮杂螺[2.5]辛-5,7-二烯-6-基）-乙酮及其 2-脱甲基类似物。当在离体葡萄叶片（品系 Shiraz）上进行测定时，这两种化合物均表现出植物毒性活性。
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