Manipulating the banana rhizosphere microbiome for biological control of Panama disease

Chao Xue, Christopher Penton, Zongzhuan Shen, Ruifu Zhang, Qiwei Huang, Rong Li, Yunze Ruan, Qirong Shen

Research output: Contribution to journalArticle

40 Citations (Scopus)

Abstract

Panama disease caused by Fusarium oxysporum f. sp. cubense infection on banana is devastating banana plantations worldwide. Biological control has been proposed to suppress Panama disease, though the stability and survival of bio-control microorganisms in field setting is largely unknown. In order to develop a bio-control strategy for this disease, 16S rRNA gene sequencing was used to assess the microbial community of a disease-suppressive soil. Bacillus was identified as the dominant bacterial group in the suppressive soil. For this reason, B. amyloliquefaciens NJN-6 isolated from the suppressive soil was selected as a potential bio-control agent. A bioorganic fertilizer (BIO), formulated by combining this isolate with compost, was applied in nursery pots to assess the bio-control of Panama disease. Results showed that BIO significantly decreased disease incidence by 68.5%, resulting in a doubled yield. Moreover, bacterial community structure was significantly correlated to disease incidence and yield and Bacillus colonization was negatively correlated with pathogen abundance and disease incidence, but positively correlated to yield. In total, the application of BIO altered the rhizo-bacterial community by establishing beneficial strains that dominated the microbial community and decreased pathogen colonization in the banana rhizosphere, which plays an important role in the management of Panama disease.

Original languageEnglish (US)
Article number11124
JournalScientific Reports
Volume5
DOIs
StatePublished - Aug 5 2015

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Panama
Musa
Rhizosphere
Microbiota
Fertilizers
Soil
Bacillus
Incidence
Bacterial Structures
Nurseries
Fusarium
Disease Management
rRNA Genes

ASJC Scopus subject areas

  • General

Cite this

Manipulating the banana rhizosphere microbiome for biological control of Panama disease. / Xue, Chao; Penton, Christopher; Shen, Zongzhuan; Zhang, Ruifu; Huang, Qiwei; Li, Rong; Ruan, Yunze; Shen, Qirong.

In: Scientific Reports, Vol. 5, 11124, 05.08.2015.

Research output: Contribution to journalArticle

Xue, Chao ; Penton, Christopher ; Shen, Zongzhuan ; Zhang, Ruifu ; Huang, Qiwei ; Li, Rong ; Ruan, Yunze ; Shen, Qirong. / Manipulating the banana rhizosphere microbiome for biological control of Panama disease. In: Scientific Reports. 2015 ; Vol. 5.
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