期刊
ECOLOGY LETTERS
卷 19, 期 4, 页码 375-382出版社
WILEY
DOI: 10.1111/ele.12567
关键词
Bacterial diversity; disease-suppressive soils; disturbance; PhyloProfiler; rhizosphere; rhizosphere microbiome
类别
资金
- Netherlands Science Organisation (NWO)-ERGO [838.06.101]
The rhizosphere microbiome offers a range of ecosystem services to the plant, including nutrient acquisition and tolerance to (a)biotic stress. Here, analysing the data by Mendes etal. (2011), we show that short heat disturbances (50 or 80 degrees C, 1h) of a soil suppressive to the root pathogenic fungus Rhizoctonia solani caused significant increase in alpha diversity of the rhizobacterial community and led to partial or complete loss of disease protection. A reassembly model is proposed where bacterial families that are heat tolerant and have high growth rates significantly increase in relative abundance after heat disturbance, while temperature-sensitive and slow-growing bacteria have a disadvantage. The results also pointed to a potential role of slow-growing, heat-tolerant bacterial families from Actinobacteria and Acidobacteria phyla in plant disease protection. In conclusion, short heat disturbance of soil results in rearrangement of rhizobacterial communities and this is correlated with changes in the ecosystem service disease suppression.
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