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Lime and Ammonium Carbonate Fumigation Coupled With Bio-Organic Fertilizer Application Steered Banana Rhizosphere to Assemble a Unique Microbiome Against Panama Disease

Lime and Ammonium Carbonate Fumigation Coupled With Bio-Organic Fertilizer Application Steered Banana Rhizosphere to Assemble a Unique Microbiome Against Panama Disease

Zongzhuan Shen, Beibei Wang, Jiaxin Zhu, Hangwei Hu, Chengyuan Tao, Yannan Ou, Xuhui Deng, Ning Ling, Rong Li, Qirong Shen

Microb Biotechnol. 2019 May;12(3):515-527.

PMID: 30838803

Abstract:

Microbiome plays a key role in determining soil suppressiveness against invading pathogens. Our previous study revealed that microbial community of bulk soil could be manipulated by lime and ammonium bicarbonate fumigation followed by biofertilizer application. However, the assembly of microbial community suppressive to banana Panama disease in the rhizosphere is still unclear. In this study, we used high-throughput sequencing and quantitative PCR to explore the assembly of rhizosphere microbiome associated with banana Panama disease suppression in a two-seasonal pot experiment. We found biofertilizer applied to lime and ammonium bicarbonate fumigated soil significantly (P < 0.05) reduced the abundance of rhizosphere Fusarium oxysporum compared to biofertilizer applied to non-fumigated soil. Principal coordinate analysis revealed that biofertilizer applied to lime and ammonium bicarbonate fumigated soil re-shaped the rhizosphere bacterial community composition by increasing the phylogenetic relatedness, and stimulating indigenous microbes, for example, Gemmatimonas, Sphingomonas, Pseudomonas, Lysobacter and Bacillus. Co-occurrence analysis revealed that potential species involved in disease suppression were more interrelated in disease-suppressive soils. Taken together, lime and ammonium bicarbonate fumigation followed by biofertilizer application could induce banana rhizosphere to assemble beneficial microbes dominated consortia to suppress banana Panama disease.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP8000735	Ammonium carbonate		8000-73-5	Price

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