Identification of linalool disaccharide glycoside (linalyl β-vicianoside) in soybean leaves and its implication for herbivore resistance.

IF 1.4 4区 生物学 Q4 BIOCHEMISTRY & MOLECULAR BIOLOGY Bioscience, Biotechnology, and Biochemistry Pub Date : 2024-12-23 DOI:10.1093/bbb/zbae144
Juliano Mwenda Ntoruru, Tsukiho Osawa, Toshiyuki Ohnishi, Kenji Matsui
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Abstract

Linalool is anticipated to have significant ecological roles. In this study, linalyl 6-O-α-arabinopyranosyl-β-d-glucopyranoside (linalyl β-vicianoside: LinVic) was synthesized, and a linalool diglycoside purified from soybean leaves was identified as LinVic by using liquid chromatography-mass spectrometry. High levels of LinVic were detected in leaves and sepals during soybean plant growth. The LinVic content did not significantly increase following methyl jasmonate treatment of the leaves, indicating that its synthesis is independent of the jasmonic acid signaling pathway. In addition to LinVic, soybean also contains 1-octen-3-yl primeveroside. We treated soybean leaves with vaporized linalool and 1-octen-3-ol to determine whether the glycosylation system discriminates between these 2 volatile alcohols. Linalool treatment resulted in the accumulation of LinVic, while 1-octen-3-ol treatment caused little change in the amount of 1-octen-3-yl primeveroside, suggesting discrimination between these compounds. Linalool-treated soybean leaves exhibited increased resistance against common cutworms, indicating that LinVic may contribute to herbivore resistance.

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鉴定大豆叶中的芳樟醇二糖苷 (Linalyl β-Vicianoside) 及其对草食动物抗性的影响。
预计芳樟醇具有重要的生态作用。本研究合成了芳樟醇 6-O-α-阿拉伯吡喃糖基-β-D-吡喃葡萄糖苷(芳樟醇 β-vicianoside:LinVic),并利用液相色谱-质谱法鉴定了从大豆叶片中纯化的芳樟醇二糖苷为 LinVic。在大豆植株生长过程中,叶片和萼片中检测到了大量的 LinVic。茉莉酸甲酯处理叶片后,LinVic 的含量并没有显著增加,这表明其合成与茉莉酸信号途径无关。除 LinVic 外,大豆还含有 1-辛烯-3-基素藜芦苷。我们用蒸发的芳樟醇和 1-辛烯-3-醇处理大豆叶片,以确定糖基化系统是否能区分这两种挥发性醇类。芳樟醇处理会导致 LinVic 的积累,而 1-辛烯-3-醇处理几乎不会导致 1-辛烯-3-基素藜芦苷的量发生变化,这表明这两种化合物之间存在区别。芳樟醇处理过的大豆叶片对普通切口虫的抗性增强,表明 LinVic 可能有助于提高食草动物的抗性。
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来源期刊
Bioscience, Biotechnology, and Biochemistry
Bioscience, Biotechnology, and Biochemistry 生物-生化与分子生物学
CiteScore
3.50
自引率
0.00%
发文量
183
审稿时长
1 months
期刊介绍: Bioscience, Biotechnology, and Biochemistry publishes high-quality papers providing chemical and biological analyses of vital phenomena exhibited by animals, plants, and microorganisms, the chemical structures and functions of their products, and related matters. The Journal plays a major role in communicating to a global audience outstanding basic and applied research in all fields subsumed by the Japan Society for Bioscience, Biotechnology, and Agrochemistry (JSBBA).
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