IntroducedPseudomonas fluorescensVUPf5 as an important biocontrol agent for controllingGaeumannomyces graminisvar.triticithe causal agent of take-all disease in wheat

Lagzian, A.; Riseh, Roohallah Saberi; Khodaygan, Pejman; Sedaghati, Ebrahim; Dashti, H.

doi:10.1080/03235408.2013.785123

Cited by 26 publications

(11 citation statements)

References 42 publications

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“…These studies suggest that cyanogenesis is an important trait of biological control agents. Therefore, it is no surprise that screening protocols for plant disease-suppressive bacteria often identify cyanogenic pseudomonads (see Lagzian et al 2013; for a recent example). Although not the sole agent of antagonism cyanogenesis contributes to the arsenal of factors used by agriculturally important bacteria in inhibiting plant pathogens.…”

Section: Plant Pathogens Influenced By Cyanide Of Bacterial Originmentioning

confidence: 99%

Bacterial cyanogenesis: impact on biotic interactions

Zdor

2014

J Appl Microbiol

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SummaryThe ability of bacteria to influence organisms that they associate with via metabolite production is one of the hallmarks of microbial interactions. One metabolite of interest is the metabolic poison cyanide. Production of this metabolite is an unique characteristic of certain bacteria that inhabit a wide array of habitats ranging from the human body to the rhizosphere. This review focuses on four targets of cyanogenic bacteria: the human lung, plant pathogens, plants and invertebrates. For a number of cyanogenic bacteria, the contribution of cyanide to the interaction has been rigorously tested using mutants altered in cyanide production. Both deleterious and stimulatory effects of cyanogenic bacteria on other organisms have been documented. In addition, the HCN synthase-encoding gene cluster hcnABC has served as a marker of cyanogenic capability in the soil environment revealing both genetic diversity at this locus and regulatory influences by other organisms. The pervasive nature of cyanogenesis in a number of different ecological contexts encourages exploration of this bacterial ability and its possible optimization for improving human health, crop production and pest control.

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Section: Plant Pathogens Influenced By Cyanide Of Bacterial Originmentioning

confidence: 99%

Bacterial cyanogenesis: impact on biotic interactions

Zdor

2014

J Appl Microbiol

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“…Therefore, the biological control of fungal diseases by microbial agents appears to be an excellent option, as secondary damaging effects on the environment can be null or minimal, in addition to the advantage of being able to export products abroad without restriction (versus the use of chemicals). Fortunately, efforts to isolate and characterize endogenous biocontrol agents are ongoing in many research labs world-wide (Selin et al, 2010;Yanes et al, 2012;Guiñazú et al, 2013;Lagzian et al, 2013;Kakar et al, 2014). In some cases, bicontrol agents may present broad antagonism toward plant pathogens, whereas in others, inhibitory effects could be pathogen-specific, or even specific to environmental or regional physico-chemical soil conditions.…”

mentioning

confidence: 99%

“…In particular, diverse Pseudomonas spp., which are common and abundant inhabitants of the rhizosphere, have the capacity to inhibit or suppress plant diseases (Stutz et al, 1985;Weller et al, 2002;Weller, 2007;Singh et al, 2012;Singh et al, 2013). Similarly, when fluorescent pseudomonads are directly applied to seed or soil inoculation treatments, excellent biocontrol activities have been reported (De la Fuente et al, 2006;Lagzian et al, 2013). 4 The inhibition of plant pathogens by rhizospheric bacterial strains is considered an indirect mechanism of plant growth promotion (Glick, 2014;Santoyo et al, 2012).…”

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confidence: 99%

Characterization of the antifungal and plant growth-promoting effects of diffusible and volatile organic compounds produced by Pseudomonas fluorescens strains

et al. 2015

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“…Several studies have shown that beneficial bacteria, such as Bacillus subtilis (Liu et al, 2009, 2011; Durán et al, 2014; Yang et al, 2018), Bacillus velezensis (Wu et al, 2012; Luo et al, 2013; Kang et al, 2018), and Pseudomonas fluorescens (Daval et al, 2011; Kwak and Weller, 2013; Lagzian et al, 2013; Yang et al, 2014, 2017), could be used as effective and eco-friendly biocontrol agents to protect wheat from take-all disease. Among them, B. velezensis is a newly reported species that may be used to control take-all and other fungal diseases, such as spot blotch and powdery mildew (Cai et al, 2017; Kang et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

Comparative Transcriptome Profiling of Gaeumannomyces graminis var. tritici in Wheat Roots in the Absence and Presence of Biocontrol Bacillus velezensis CC09

et al. 2019

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This study aimed to explore potential biocontrol mechanisms involved in the interference of antagonistic bacteria with fungal pathogenicity in planta . To do this, we conducted a comparative transcriptomic analysis of the “take-all” pathogenic fungus Gaeumannomyces graminis var. tritici ( Ggt ) by examining Ggt -infected wheat roots in the presence or absence of the biocontrol agent Bacillus velezensis CC09 ( Bv ) compared with Ggt grown on potato dextrose agar (PDA) plates. A total of 4,134 differentially expressed genes (DEGs) were identified in Ggt -infected wheat roots, while 2,011 DEGs were detected in Bv + Ggt -infected roots, relative to the Ggt grown on PDA plates. Moreover, 31 DEGs were identified between wheat roots, respectively infected with Ggt and Bv + Ggt , consisting of 29 downregulated genes coding for potential Ggt pathogenicity factors – e.g., para-nitrobenzyl esterase, cutinase 1 and catalase-3, and two upregulated genes coding for tyrosinase and a hypothetical protein in the Bv + Ggt -infected roots when compared with the Ggt -infected roots. In particular, the expression of one gene, encoding the ABA3 involved in the production of Ggt ’s hormone abscisic acid, was 4.11-fold lower in Ggt -infected roots with Bv than without Bv . This is the first experimental study to analyze the activity of Ggt transcriptomes in wheat roots exposed or not to a biocontrol bacterium. Our results therefore suggest the presence of Bv directly and/or indirectly impairs the pathogenicity of Ggt in wheat roots through complex regulatory mechanisms, such as hyphopodia formation, cell wall hydrolase, and expression of a papain inhibitor, among others, all which merit further investigation.

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IntroducedPseudomonas fluorescensVUPf5 as an important biocontrol agent for controllingGaeumannomyces graminisvar.triticithe causal agent of take-all disease in wheat

Cited by 26 publications

References 42 publications

Bacterial cyanogenesis: impact on biotic interactions

Bacterial cyanogenesis: impact on biotic interactions

Characterization of the antifungal and plant growth-promoting effects of diffusible and volatile organic compounds produced by Pseudomonas fluorescens strains

Comparative Transcriptome Profiling of Gaeumannomyces graminis var. tritici in Wheat Roots in the Absence and Presence of Biocontrol Bacillus velezensis CC09

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