期刊:PHYTOCHEMISTRY LETTERS ISSN:1874-3900 , 年:2018 . 卷:24   页码:120-124

原文链接:http://dx.doi.org/10.1016/j.phytol.2018.01.019

摘要

A new phenylpropane-pimarane heterodimer, 2-[(E)-3-(4 hydroxy-3-methoxyphenyl) allylidene] momilactone A (1), and a new ent-kaurene diterpene, ent-3 alpha, 16 alpha-dihydroxy-kauran-19-oic acid (2), were isolated from the rice husks of Oryza sative L., along with a known ent-kaurene diterpenoid ent-7-oxo-kaur-15-en-19-oic acid (3). Their structures were determined by spectroscopic means, including nuclear magnetic resonance (NMR) and mass spectrometry (MS) techniques. Compound 3 was isolated as a natural product for the first time. These compounds were tested for their in vitro antifungal activity against rice pathogenic fungi Magnaporthe grisea and Rhizoctonia solani. Compounds 1 and 3 were found to show anti-fungal activity against M. grisea and R. solani with MIC values ranging from 6.25 to 25 mu g/mL. No inhibitory activity was detected for compound 2 in this bioassay.

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关键词
Oryza sative;  Diterpenoid;  Pimarane;  Ent-kaurene;  Antifungal activity

附加关键词:
RICE HULLS;  CHEMICAL-CONSTITUENTS;  HERBICIDAL ACTIVITY;  MAGNAPORTHE-GRISEA;  SIDERITIS-SYRIACA;  MOMILACTONE-B;  GROWTH;  ALLELOCHEMICALS;  INHIBITORS;  DUCKWEED

作者信息

通讯作者:
     Tan, JW , South China Agr Univ, State Key Lab Conservat & Utilizat Subtrop Agrobi, Coll Forestry & Landscape Architecture, Guangzhou 510642, Guangdong, Peoples R China.; Tan, JW , South China Agr Univ, Guangdong Key Lab Innovat Dev & Utilizat Forest P, Coll Forestry & Landscape Architecture, Guangzhou 510642, Guangdong, Peoples R China.; Xu, QL , Guangdong Acad Forestry, Guangdong Prov Key Lab Biocontrol Forest Dis & Pe, Guangzhou 510520, Guangdong, Peoples R China.
作者机构:
     [1] [ Zhang, Qiang;  Dong, Li-Mei;  Luo, Bi;  Liu, Wen-Bin ]  Chinese Acad Sci, South China Bot Garden, Key Lab Guangdong Prov Key Lab Appl Bot, Guangzhou 510650, Guangdong, Peoples R China.
     [2] [ Zhang, Qiang;  Dong, Li-Mei;  Luo, Bi;  Liu, Wen-Bin ]  Chinese Acad Sci, South China Bot Garden, Key Lab Plant Resources Conservat & Sustainable U, Guangzhou 510650, Guangdong, Peoples R China.
     [3] [ Zhang, Qiang;  Xia, Xiao-Mei;  Dong, Li-Mei;  Tan, Jian-Wen ]  South China Agr Univ, State Key Lab Conservat & Utilizat Subtrop Agrobi, Coll Forestry & Landscape Architecture, Guangzhou 510642, Guangdong, Peoples R China.
     [4] [ Zhang, Qiang;  Xia, Xiao-Mei;  Dong, Li-Mei;  Tan, Jian-Wen ]  South China Agr Univ, Guangdong Key Lab Innovat Dev & Utilizat Forest P, Coll Forestry & Landscape Architecture, Guangzhou 510642, Guangdong, Peoples R China.
     [5] [ Xu, Qiao-Lin ]  Guangdong Acad Forestry, Guangdong Prov Key Lab Biocontrol Forest Dis & Pe, Guangzhou 510520, Guangdong, Peoples R China.
     [6] [ Zhang, Qiang ]  Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
显示更多 作者邮箱:
     qlxu@sinogaf.cn
     jwtan@scau.edu.cn