A new phenylpropane-pimarane heterodimer and a new ent-kaurene diterpene from the husks of Oryza sativa

被引：2

作者：

Zhang, Qiang ^{[1
,2
,3
,4
,6
]}

Xu, Qiao-Lin ^{[5
]}

Xia, Xiao-Mei ^{[3
,4
]}

Dong, Li-Mei ^{[1
,2
,3
,4
]}

Luo, Bi ^{[1
,2
]}

Liu, Wen-Bin ^{[1
,2
]}

Tan, Jian-Wen ^{[3
,4
]}

机构：

[1] Chinese Acad Sci, South China Bot Garden, Key Lab Guangdong Prov Key Lab Appl Bot, Guangzhou 510650, Guangdong, Peoples R China

[2] Chinese Acad Sci, South China Bot Garden, Key Lab Plant Resources Conservat & Sustainable U, Guangzhou 510650, Guangdong, Peoples R China

[3] South China Agr Univ, State Key Lab Conservat & Utilizat Subtrop Agrobi, Coll Forestry & Landscape Architecture, Guangzhou 510642, Guangdong, Peoples R China

[4] South China Agr Univ, Guangdong Key Lab Innovat Dev & Utilizat Forest P, Coll Forestry & Landscape Architecture, Guangzhou 510642, Guangdong, Peoples R China

[5] Guangdong Acad Forestry, Guangdong Prov Key Lab Biocontrol Forest Dis & Pe, Guangzhou 510520, Guangdong, Peoples R China

[6] Univ Chinese Acad Sci, Beijing 100049, Peoples R China

来源：

PHYTOCHEMISTRY LETTERS | 2018年 / 24卷

基金：

中国国家自然科学基金;

关键词：

Oryza sative; Diterpenoid; Pimarane; Ent-kaurene; Antifungal activity; RICE HULLS; CHEMICAL-CONSTITUENTS; HERBICIDAL ACTIVITY; MAGNAPORTHE-GRISEA; SIDERITIS-SYRIACA; MOMILACTONE-B; GROWTH; ALLELOCHEMICALS; INHIBITORS; DUCKWEED;

D O I：

10.1016/j.phytol.2018.01.019

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

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.

引用

页码：120 / 124

页数：5

共 28 条

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