Evaluation of Endophytic Bacteria as Potential Biological-Control Agents for Oak Wilt

Brooks, David; Gonzalez, Carlos F.; Appel, David N.; Filer, T. H.

doi:10.1006/bcon.1994.1047

Cited by 128 publications

(65 citation statements)

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“…These endophytic bacteria could take effect by limiting the invasion of Fusarium oxysporum f. sp. cubense; the mechanism may range from outcompetition of the pathogen to production of antibiotics to induction of system resistance (Bacon and Hinton, 2002;Brooks et al, 1994). Wilt disease of the banana plant may be inhibited by a diverse endophytic bacteria community maintaining the pathogen spores below the level that is required for expression of pathogenicity.…”

Section: Discussionmentioning

confidence: 99%

Response of endophytic bacterial communities in banana tissue culture plantlets to Fusarium wilt pathogen infection

Liu

Wang

Zhou

2008

J. Gen. Appl. Microbiol.

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Endophytic bacteria reside within plant hosts without having pathogenic effects, and various endophytes have been found to functionally benefit plant disease suppressive ability. In this study, the influence of banana plant stress on the endophytic bacterial communities, which was achieved by infection with the wilt pathogen Fusarium oxysporum f. sp. cubense, was examined by cultivation-independent denaturing gradient gel electrophoresis analysis of 16S ribosomal DNA directly amplified from plant tissue DNA. Community analysis clearly demonstrated increased bacterial diversity in pathogen-infected plantlets compared to that in control plantlets. By sequencing, bands most similar to species of Bacillus and Pseudomonas showed high density in the pathogen-treated pattern. In vitro screening of the isolates for antagonistic activity against Fusarium wilt pathogen acquired three strains of endophytic bacteria which were found to match those species that obviously increased in the pathogen infection process; moreover, the most inhibitive strain could also interiorly colonize plantlets and perform antagonism. The evidence obtained from this work showed that antagonistic endophytic bacteria could be induced by the appearance of a host fungal pathogen and further be an ideal biological control agent to use in banana Fusarium wilt disease protection.

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Section: Discussionmentioning

confidence: 99%

Response of endophytic bacterial communities in banana tissue culture plantlets to Fusarium wilt pathogen infection

Liu

Wang

Zhou

2008

J. Gen. Appl. Microbiol.

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“…Some examples include nitrogen fixation, antibacterial and antifungal activities, as well as plant growth promotion (Brooks et al, 1994;Berg et al, 2005;Tan et al, 2006;Rijavec et al, 2007). Other roles such as synthesis of novel chemicals, resistance to heavy metals and xenobiotic degration have been observed in isolated endophytes (Siciliano et al, 2001;Ryan et al, 2007).…”

Section: Introductionmentioning

confidence: 99%

Diversity of bacterial endophytes in roots of Mexican husk tomato plants (Physalis ixocarpa) and their detection in the rhizosphere

et al. 2010

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ABSTRACT. Endophytic bacterial diversity was estimated in Mexican husk tomato plant roots by amplified rDNA restriction analysis and sequence homology comparison of the 16S rDNA genes. Sixteen operational taxonomic units from the 16S rDNA root library were identified based on sequence analysis, including the classes Gammaproteobacteria, Betaproteobacteria, Actinobacteria, and Bacilli. The predominant genera were Stenotrophomonas (21.9%), Microbacterium (17.1%), Burkholderia (14.3%), Bacillus (14.3%), and Pseudomonas (10.5%). In a 16S rDNA gene library of the same plant species' rhizosphere, only common soil bacteria, including Stenotrophomonas, Burkholderia, Bacillus, and Bacterial endophytic diversity in Physalis ixocarpaPseudomonas, were detected. We suggest that the endophytic bacterial diversity within the roots of Mexican husk tomato plants is a subset of the rhizosphere bacterial population, dominated by a few genera.

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“…as a biocontrol agent of fungal pathogens has been also explored (Zhang and Yuen, 1999). Most of the antagonistic endophytic bacteria identified in this study, Pseudomonas, Stenotrophomonas, Bacillus, Microbacterium and Paenibacillus, are already defined for the antagonism and plant growth promotion as biocontrol agent Brooks et al, 1994;Rosenblueth and Martínez-Romero, 2006;Singh et al, 1999).…”

Section: Discussionmentioning

confidence: 99%

“…Many bacteria on the root surface and in the rhizosphere benefit plants. In particular, some bacteria residing in the interior of plant tissues and intercellular spaces provide benefits to the host, which include plant growth promotion and induction of plant defense mechanisms, by providing growth-stimulating or resistance-inducing substances or producing antibiotics for outcompeting fungal pathogens Brooks et al, 1994;Chert et al, 1995;Chung et al, 2010;Chung et al, 2008;Ryu et al, 2003), without causing harm (Schulz and Boyle, 2006). The bacteria benefit by being protected from the competitive and high-stress environment of the soil compared to bacteria restricted to the rhizosphere and the rhizoplane (Rosenblueth and Martínez-Romero, 2006).…”

mentioning

confidence: 99%

Diversity and Characterization of Endophytic Bacteria Associated with Tidal Flat Plants and their Antagonistic Effects on Oomycetous Plant Pathogens

Bibi¹,

Yasir²,

Song³

et al. 2012

The Plant Pathology Journal

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Evaluation of Endophytic Bacteria as Potential Biological-Control Agents for Oak Wilt

Cited by 128 publications

References 0 publications

Response of endophytic bacterial communities in banana tissue culture plantlets to Fusarium wilt pathogen infection

Response of endophytic bacterial communities in banana tissue culture plantlets to Fusarium wilt pathogen infection

Diversity of bacterial endophytes in roots of Mexican husk tomato plants (Physalis ixocarpa) and their detection in the rhizosphere

Diversity and Characterization of Endophytic Bacteria Associated with Tidal Flat Plants and their Antagonistic Effects on Oomycetous Plant Pathogens

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