多孢木霉HZ-31代谢产物中除草化合物的鉴定与提取

IF 2.1 2区农林科学 Q2 AGRONOMY

Weed Science Pub Date : 2022-12-15 DOI:10.1017/wsc.2022.66

Haixia Zhu, Hongyu Chen, Yongqiang Ma, Q. Guo

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引用次数: 0

摘要

摘要采用提取、柱色谱、高效液相色谱等方法对日发HZ-31木霉发酵液进行了分离纯化。得到了4个具有较强除草活性的单体化合物：对羟基苯基-2,3-二羟丙基醚、邻羟基-3-羰基-1-苯基丙醇、1,8-丙二醇邻二甲苯和2-3-二羟基丙酸酯。生物活性验证试验表明，四种单体化合物均能抑制野生燕麦（Avena fatua L.）和油菜（Brassica napus L.）种子的发芽。其中，化合物3（1,8-丙二醇-邻二甲苯）对甘蓝型油菜和甘蓝型油菜种子的发芽有明显的抑制作用，抑制率分别为83.33%和86.67%。因此，该单体化合物的鉴定为直接利用它并开发具有除草功能的新衍生物作为先导化合物，进一步开发新型微生物除草剂奠定了基础。

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Identification and Extraction of Herbicidal Compounds from Metabolites of Trichoderma Polysporum HZ-31

Abstract Trichoderma polysporum (Link) Rifai HZ-31 fermentation broth was separated and purified by extraction, column chromatography, and high-performance liquid chromatography. Four monomer compounds with strong herbicidal activity were obtained: p-hydroxyphenyl-2,3-dihydroxypropyl ether, o-hydroxy-3-carbonyl-1-phenylpropanol, 1,8-propanediol o-xylene, and 2-3-dihydroxypropyl propionate. The biological activity verification test indicated that the four monomer compounds could inhibit the germination of wild oat (Avena fatua L.) and canola (Brassica napus L.) seeds. Of the four, compound 3 (1,8-propanediol o-xylene) had obvious inhibitory effects on the germination of A. fatua and B. napus seeds, with inhibition rates of 83.33% and 86.67%, respectively. Therefore, the identification of this monomer compound lays a foundation for the further development of a novel microbial herbicide by directly utilizing it and developing new derivatives with herbicidal functions as lead compounds.

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来源期刊

Weed Science 农林科学-农艺学

CiteScore

4.60

自引率

12.00%

发文量

审稿时长

12-24 weeks

期刊介绍： Weed Science publishes original research and scholarship in the form of peer-reviewed articles focused on fundamental research directly related to all aspects of weed science in agricultural systems. Topics for Weed Science include: - the biology and ecology of weeds in agricultural, forestry, aquatic, turf, recreational, rights-of-way and other settings, genetics of weeds - herbicide resistance, chemistry, biochemistry, physiology and molecular action of herbicides and plant growth regulators used to manage undesirable vegetation - ecology of cropping and other agricultural systems as they relate to weed management - biological and ecological aspects of weed control tools including biological agents, and herbicide resistant crops - effect of weed management on soil, air and water.