文献类型： 外文期刊
作者： Xu, Yingting 1 ; Xu, Yingchao 1 ; Huang, Zhengwan 1 ; Luo, Yucai 1 ; Gao, Ruanling 1 ; Xue, Jinghua 1 ; Lin, Changli 5 ; Pawlowski, Katharina 4 ; Zhou, Zhongyu 1 ; Wei, Xiaoyi 1 ;
作者机构： 1.Chinese Acad Sci, Key Lab South China Agr Plant Mol Anal & Genet Imp, South China Bot Garden, Guangzhou 510650, Peoples R China
2.Chinese Acad Sci, Guangdong Prov Key Lab Appl Bot, South China Bot Garden, Guangzhou 510650, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Stockholm Univ, Dept Ecol Environm & Plant Sci, S-10691 Stockholm, Sweden
5.Yunhe Forestry Bur, Lishui 323000, Peoples R China
6.Guangdong Acad Agr Sci, Vegetable Res Inst, Guangdong Key Lab New Technol Res Vegetables, Guangzhou 510640, Peoples R China
7.South China Natl Bot Garden, Guangzhou 510650, Peoples R China
关键词： Alnus cremastogyne; Betulaceae; Root nodules; 3-Pentanol glycosides; 3-Pentanol
期刊名称：PHYTOCHEMISTRY （ 影响因子：3.8； 五年影响因子：4.0 ）
ISSN： 0031-9422
年卷期： 2023 年 207 卷
页码：
收录情况： SCI
摘要： Alnus cremastogyne Burkill (Betulaceae), an actinorhizal plant, can enter a mutualistic symbiosis with Frankia species that leads to the formation of nitrogen fixing root nodules. Some primary metabolites (carbohydrates, dicarboxylic acids, amino acids, citrulline and amides) involved in carbon and nitrogen metabolism in actino-rhizal nodules have been identified, while specialized metabolites in A. cremastogyne root nodules are yet to be characterized. In this study, we isolated and identified three undescribed 3-pentanol glycosides, i.e., 3-pentyl alpha-L- arabinofuranosyl-(1 ''-*6 ')-beta-D-glucopyranoside, 3-pentyl alpha-L-rhamnopyranosyl-(1 ''-*6 ')-beta-D-glucopyranoside, and 3-pentyl 6 '-(3-hydroxy3-methylglutaryl)-beta-D-glucopyranoside, as well as seventeen known compounds from A. cremastogyne root nodules. 3-Pentanol glycosides are abundantly distributed in root nodules, while they are distributed in stems, roots, leaves and fruits at low/zero levels. A. cremastogyne plants treated by root nodule suspension emit 3-pentanol. This study enriches the knowledge about specialized metabolites in the actinorhizal host, and provides preliminarily information on the signal exchange in the actinorhizal symbiosis between A. cremastogyne and Frankia.
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