The Biocontrol BacteriumPseudomonas FluorescensPf29Arp Strain Affects the Pathogenesis‐Related Gene Expression of the Take‐All FungusGaeumannomyces GraminisVar.Triticion Wheat Roots

Daval, Stéphanie; Lebreton, Lionel; Sarniguet, Alain

doi:10.1002/9781118297674.ch59

Cited by 3 publications

(3 citation statements)

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“…Gene expression studies with MBCAs have also been mainly focused on transcriptome analysis of a single species, either the MBCA, the host plant or the plant pathogen. Some pioneering experiments using classical real-time PCR (Daval et al 2011) or microarray (Rubio et al 2014) have shown the usefulness of these approaches for understanding the complex interplay between two or three species. The design and analysis of in situ models of bi-(plant-MBCA) or tri-trophic (plant-MBCA-pathogen) interactions should be preferred in the future and should survey the transcriptome of all the species.…”

Section: Transcriptomic Studies Of Biocontrol Agentsmentioning

confidence: 99%

Impact of the omic technologies for understanding the modes of action of biological control agents against plant pathogens

et al. 2015

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The characterization of microbial biological control agents (MBCAs) is crucial to improve their efficacy and consistency as biopesticides. Powerful approaches to characterize MBCA's modes of action are provided by modern molecular technologies. This paper reviews improvements achieved in this subject by three ''omics'' approaches: namely the genomic, the transcriptomic and the proteomic approaches. The paper discusses the advantages and drawbacks of new molecular techniques and 'discovery driven' approaches to the study of the biocontrol properties against plant pathogens. Omics technologies are capable of: (i) identifying the genome, transcriptome or proteome features of an MBCA strain, (ii) comparing properties of strains/mutants with different biocontrol efficacy, (iii) identifying and characterizing genes, mRNAs and proteins involved in MBCA modes of action, and (iv) simultaneously studying the transcriptome or proteome of the plant host, the plant pathogen and the MBCAs in relation to their bi-or tri-trophic interactions.

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Section: Transcriptomic Studies Of Biocontrol Agentsmentioning

confidence: 99%

Impact of the omic technologies for understanding the modes of action of biological control agents against plant pathogens

et al. 2015

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“…The P. fluorescens Pf29Arp siderophore influences the expression of the pathogenesis‐related genes of Gaeumannomyces graminis var. tritici , the causal agent of take‐all disease on wheat roots (Daval et al, 2011). P. fluorescens GRC2 secretes a hydroxamate‐type siderophore that promotes plant growth and inhibits Macrophomina phaseolina , the causative agent of charcoal rot on peanuts (Gupta et al, 2002).…”

Section: Introductionmentioning

confidence: 99%

Pseudomonas fluorescens NK4 siderophore promotes plant growth and biocontrol in cucumber

Al‐Karablieh

Al‐Shomali

Al-Elaumi

et al. 2022

Journal of Applied Microbiology

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Aims:To test the effect of zinc oxide nanoparticle (ZnO-NP) supplementation for enhancing the efficacy of Pseudomonas fluorescens NK4 siderophore as a biocontrol agent against P. viridiflava NK2 and a plant growth promoter.Methods and Results: Cucumber seedlings were treated with a suspension of P. fluorescens NK4 and its siderophore generated in siderophore-inducing medium (SIM), SIM supplemented with ZnO-NP (<100 nm) and SIM supplemented with Zn 2+ ions from Zn(NO 3 ) 2 . Supplementing SIM with ZnO-NP increased siderophore secretion in P. fluorescens NK4, and irrigation of cucumber seedlings with a filtrate containing the ZnO-NP-supplemented siderophore increased survival, improved vegetative and root growth, and thus increased yield similar to the effects of dipping seedlings in a P. fluorescens NK4 suspension. Both P. fluorescens NK4 and its ZnO-NP-supplemented siderophore inhibited P. viridiflava NK2 population growth in planta. Conclusions:The siderophore of P. fluorescens NK4 produced by ZnO-NP supplementation can be employed as a biocontrol agent and biofertilizer.Significance and Impact of the Study: ZnO-NPs can boost the synthesis of siderophores, which can then be employed as biofertilizers to boost iron bioavailability in iron-deficient soils.

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“…Although there is no literature on the use of P. fluorescens as a biological control agent against D. kuriphilus, it has been used as a biocontrol agent against some other hazardous organisms, especially phytopathogenic fungi and bacteria. Daval et al [35] report that P. fluorescens Pf29 can be used for control of the fungus Gaeumannomyces graminis var. tritici (Ggt) on wheat roots.…”

Section: Pseudomonas Fluorescensmentioning

confidence: 99%

Isolation, identification and characterization of biotechnologically important bacteria from microflora of Dryocosmus kuriphilus Yasumatsu (Hymenoptera: Cynipidae)

Iskender

Algur

Aksu

et al. 2017

Biotechnology & Biotechnological Equipment

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The chestnut gall wasp, Dryocosmus kuriphilus Yasumatsu (Hymenoptera: Cynipidae) is one of the most important insect pests of chestnut. The aim of this study was to isolate and characterize bacteria from D. kuriphilus to obtain new microbial agents for both biological control and other biotechnological applications. D. kuriphilus larvae were collected from chestnut fields located in Bursa and Yalova provinces of Marmara Region of Turkey during May-July 2014. Four bacterial isolates were obtained from D. kuriphilus. According to their morphological, biochemical and molecular properties, these isolates were identified as Staphylococcus saprophyticus (Dk1), Paenibacillus sp. (Dk2), Pseudomonas flourescens (Dk3) and Paenibacillus sp. (Dk4). To the best of our knowledge, this is the first study on the bacterial flora of D. kuriphilus. In our study, the potential of these isolates as a biological control agent against different hazardous pests and other possible biotechnological applications of importance were discussed under the light of literature.

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The Biocontrol BacteriumPseudomonas FluorescensPf29Arp Strain Affects the Pathogenesis‐Related Gene Expression of the Take‐All FungusGaeumannomyces GraminisVar.Triticion Wheat Roots

Cited by 3 publications

References 40 publications

Impact of the omic technologies for understanding the modes of action of biological control agents against plant pathogens

Impact of the omic technologies for understanding the modes of action of biological control agents against plant pathogens

Pseudomonas fluorescens NK4 siderophore promotes plant growth and biocontrol in cucumber

Isolation, identification and characterization of biotechnologically important bacteria from microflora of Dryocosmus kuriphilus Yasumatsu (Hymenoptera: Cynipidae)

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