期刊
MICROBES AND ENVIRONMENTS
卷 28, 期 1, 页码 42-49出版社
JAPANESE SOC MICROBIAL ECOLOGY, DEPT BIORESOURCE SCIENCE
DOI: 10.1264/jsme2.ME12085
关键词
in vitro; Phoma sp GS8-3; plant growth-promoting fungus; tobacco; volatile organic compounds
资金
- Japanese Ministry of Education, Culture, Sports, Science and Technology (Monbukagakusho)
- Grants-in-Aid for Scientific Research [22380177] Funding Source: KAKEN
We extracted volatile organic compounds (VOCs) emitted by a plant growth-promoting fungus (PGPF) Phoma sp. GS8-3 by gas chromatography and identified them by mass spectrometry. All of the identified compounds belonged to C4-C8 hydrocarbons. Volatiles varied in number and quantity by the culture period of the fungus (in days). 2-Methyl-propanol and 3-methyl-butanol formed the main components of the volatile blends for all the culture periods of fungus. Growth-promoting effects of the identified synthetic compounds were analyzed individually and in blends using tobacco plants. We found that the mixture of volatiles extracted from 3-day-old culture showed significant growth promotion in tobacco in vitro. The volatile blend showed better growth promotion at lower than higher concentrations. Our results confirm the potential role of volatile organic compounds in the mechanism of growth enhancement by GS8-3.
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