Antifungal activity of novel indole derivative from endophytic bacteria Pantoea ananatis 4G-9 against Mycosphaerella musicola

被引：14

作者：

Aman, Mohammed ^{[1
]}

Rai, Ravishankar, V ^{[1
]}

机构：

[1] Univ Mysore, Dept Studies Microbiol, Mysore, Karnataka, India

来源：

BIOCONTROL SCIENCE AND TECHNOLOGY | 2016年 / 26卷 / 04期

关键词：

Bacterial metabolite; indole derivative; Pantoea ananatis 4G-9; Mycosphaerella musicola; secondary metabolite; LEAF-SPOT DISEASE; BIOLOGICAL-CONTROL; CROWN ROT; BIOCONTROL AGENTS; NATURAL-PRODUCTS; ERWINIA-ANANAS; PLANT; 1,3,4-THIADIAZOLE; 1,2,4-TRIAZOLE; SPP;

D O I：

10.1080/09583157.2015.1126223

中图分类号：

Q81 [生物工程学（生物技术）]; Q93 [微生物学];

学科分类号：

071005 ; 0836 ; 090102 ; 100705 ;

摘要：

An endophytic bacterium isolated from banana G-9 (AAA genotype) leaves exhibited strong antagonistic activity against Mycosphaerella musicola. The isolate was identified as Pantoea ananatis 4G-9 by 16S rRNA sequence analysis. Secondary metabolite obtained from P. ananatis 4G-9 was found to have antifungal activity. The active compound was purified from crude extract using column chromatography. Purity of the active compound was assessed using high-performance liquid chromatography. Spectral analysis of compound using infrared, mass spectrometry and nuclear magnetic resonance indicated that the compound structure is an indole derivative. The compound showed strong and dose-dependent antifungal activity against M. musicola. This is the first report on P. ananatis isolated as an endophyte from banana leaves and its antifungal activity against M. musicola.

引用

页码：476 / 491

页数：16