Chaetominine, (+)-alantrypinone, questin, isorhodoptilometrin, and 4-hydroxybenzaldehyde produced by the endophytic fungus Aspergillus sp. YL-6 inhibit wheat ( Triticum aestivum ) and radish ( Raphanus sativus ) germination

Journal of plant interactions

article

Gui Ren-Yi¹  Xu Lei¹  Kuang Yi¹  Chung III-Ming³  Qin Jian-Chun⁴  Liu Li¹  Yang Sheng-Xiang¹  Zhao Li-Chun⁵ 

[1] The Nurturing Station for the State Key Laboratory of Subtropical Silviculture, Zhejiang A & F University;Key Laboratory of Chemical Utilization of Forestry Biomass of Zhejiang Province, Zhejiang A & F University;Department of Applied Bioscience, Konkuk University;College of Plant Science, Jilin University;Ruikang Hospital Affiliated to Guangxi University of Chinese Medicine

关键词: Pleioblastus amarus;    Aspergillus sp;    YL-6;    herbicides;    allelochemicals;   

DOI  :  10.1080/17429145.2015.1019742

学科分类：纳米科学和纳米技术

来源: Taylor & Francis

【 摘 要 】

Five phytotoxic substances with allelopathic activity were isolated from endophytic fungi Aspergillus sp. YL-6 habited in Pleioblastus amarus . The chemical structures of these substances were determined as chaetominine ( 1 ), (+)-alantrypinone ( 2 ), questin ( 3 ), isorhodoptilometrin ( 4 ), and 4-hydroxybenzaldehyde ( 5 ) by nuclear magnetic resonance and mass spectrometry data. The potential allelopathic effects of compounds 1–5 were evaluated on wheat ( Triticum aestivum ) and radish ( Raphanus sativus ). Under lab condition, at concentrations of 10 and 20 ppm, compounds 1–5 inhibit the germination and growth of the two tested seeds completely. An idole-3-acetic acid (IAA) derivative, (+)-alantrypinone ( 2 ) displayed the best inhibitory effects on radish seeds among these tested compounds with the similar activity as the positive control glyphosate, a broad-spectrum systemic herbicide. In the further evaluation of compounds 1–5 , Questin ( 3 ), an anthraquinone derivative, can inhibit shoot and root elongation of wheat, the inhibitory effects assessed were similar to the positive control glyphosate.

【 授权许可】

CC BY|CC BY-NC