Production of desmethyl-gregatin A, a possible causative toxin of brown stem rot in adzuki bean, by Phialophora gregata f. sp. adzukicola.

IF 1.5 4区 农林科学 Q2 ENTOMOLOGY Journal of Pesticide Science Pub Date : 2023-05-20 DOI:10.1584/jpestics.D22-070
Moe Aizawa, Hayate Saito, Takuya Mitazaki, Takara Taketani, Keiichi Noguchi, Sho Miyazaki, Hiroshi Kawaide, Masahiro Natsume
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Abstract

To elucidate the cause of brown stem rot in the adzuki bean, we re-evaluated the phytotoxins produced in cultures of the causative agent, Phialophora gregata f. sp. adzukicola. The ethyl acetate-soluble acidic fraction of the culture, as well as the neutral fraction, inhibited the growth of alfalfa seedlings. In the neutral fraction, known phytotoxins gregatin A, B, and C or D and penicilliol A were present. Although the phytotoxins in the acidic fraction were unstable, liquid chromatography-mass spectrometry analysis of the partially purified material suggested that one phytotoxin present was the non-methylated gregatin desmethyl-gregatin A (gregatinic acid A).

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小豆褐茎腐病可能的致病毒素去甲基gregatin A的产生。
为了阐明小豆褐色茎腐病的原因,我们重新评估了病原菌phalophora gregata f. sp. adzukicola培养物中产生的植物毒素。乙酸乙酯可溶性酸性部分和中性部分抑制了苜蓿幼苗的生长。在中性部分中,存在已知的植物毒素gregatin A, B和C或D和青霉醇A。虽然酸性部分中的植物毒素不稳定,但液相色谱-质谱分析部分纯化的物质表明,其中一种植物毒素是未甲基化的gregatin去甲基-gregatin A (gregatin acid A)。
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来源期刊
Journal of Pesticide Science
Journal of Pesticide Science 农林科学-昆虫学
CiteScore
4.30
自引率
4.20%
发文量
28
审稿时长
18-36 weeks
期刊介绍: The Journal of Pesticide Science publishes the results of original research regarding the chemistry and biochemistry of pesticides including bio-based materials. It also covers their metabolism, toxicology, environmental fate and formulation.
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