Combining antagonistic endophytic bacteria in different growth stages of cotton for control of Verticillium wilt

Yang, Pei; Sun, Zhengxiang; Liu, Shuyan; Hong-xue, LU; Zhou, Yi; Sun, Ming

doi:10.1016/j.cropro.2012.12.020

Cited by 34 publications

(16 citation statements)

References 23 publications

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“…This strain was also able to control V. dahliae in potato plants under field conditions and in olive trees under both field and greenhouse conditions [9,17]. In cotton, treatment with Paenibacillus xylanilyticus YUPP-1 and P. polymyxa YUPP-8 reduced DI and disease severity [61].…”

Section: Discussionmentioning

confidence: 92%

Bacillales Members from the Olive Rhizosphere Are Effective Biological Control Agents against the Defoliating Pathotype of Verticillium dahliae

et al. 2018

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The use of biological control agents (BCAs) is of interest within an integrated management strategy of Verticillium wilt of olive (VWO) caused by the soil-borne fungus Verticillium dahliae Kleb. Previous studies have shown that the root/rhizosphere of healthy olive plants is an important reservoir of microorganisms displaying biocontrol activity against VWO (i.e., Pseudomonas strains PICF7 and PIC141). Moreover, these BCAs are already adapted to the ecological niche where they are deployed. Three novel bacteria (strains PIC28, PIC73 and PIC167) from nursery-produced olive plants were in-depth characterized using a previously implemented approach consisting of in situ isolation, in vitro antagonism tests, in planta bioassays, phenotypic and metabolic characterization, genome analyses and in silico identification of traits involved in plant-bacteria interactions, and multi-locus sequence analyses. All strains displayed in vitro growth inhibition of different olive pathogens and biocontrol effectiveness against Verticillium dahliae, with strain PIC73 being the most effective BCA. Strains PIC73 and PIC167 were identified as Paenibacillus polymyxa (Prazmowski) Ash et al. and Paenibacillus terrae Yoon et al., respectively. Strain PIC28 belongs to the Bacillus genus. Some of these Bacillales members showed in vitro compatibility with previously characterized BCAs (Pseudomonas spp. strains) also originating from the olive rhizosphere, paving the way for the future development of tailored bacterial consortia effective against VWO.

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Section: Discussionmentioning

confidence: 92%

Bacillales Members from the Olive Rhizosphere Are Effective Biological Control Agents against the Defoliating Pathotype of Verticillium dahliae

et al. 2018

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“…In another study, the mixture of compatible B. amyloliquefaciens strain BLB369, B. subtilis strain BLB277 and Paenibacillus polymyxa strain 267 has been shown to stimulate wheat seed germination and exhibit better effi cacy in controlling head blight caused by Fusarium graminearum than treatments with the individual strains or mixtures of two-strain combination (Zalila-Kolsi et al, 2016). The combined application of three compatible (colonization levels of cotton stems were similar for each strain) biocontrol strains on cotton roots, B. subtilis YUPP-2, P. polymixa YUPP-8 and Paenibacillus xylanilyticus YUPP-12, revealed better eff ect in controlling Verticillium dahliae in cotton than their individual application (Yang et al, 2013). evaluated the eff ect of a bacterial mixture composed of compatible Bacillus and Serratia strains (Bacillus cereus AR156, B. subtilis SM21, and Serratia sp.…”

Section: Bacillus-based Multistrain Mixturesmentioning

confidence: 97%

Multistrain versus single-strain plant growth promoting microbial inoculants - The compatibility issue

Thomloudi

Tsalgatidou

Douka

et al. 2019

Hellenic Plant Protection Journal

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Summary Plant Growth Promoting Microorganisms or Plant Probiotics (PGPMs) constitute a promising solution for agricultural sustainability. The concept that inoculation of PGPM mixtures may perform better in enhancing agricultural production than single strain application dates back to the discovery of plant growth rhizobacteria (PGPR) and is gaining ground in our days. This shift is highlighted by the increasing number of research publications dealing with the positive impact of microbial mixtures in promoting plant growth, controlling plant pathogens, as well as providing abiotic stress tolerance. The continuous deposition of patents as well as commercially available formulations concerning bioprotective and/or biostimulant multistrain mixtures also underlines this shift. A major issue in engineering an effective and consistent synthetic multistrain mixture appears to be the compatibility of its components. The present review provides a thorough literature survey supporting the view that treatment of plants with compatible multistrain mixtures generally exerts a better effect in plant growth and health than single-strain inoculation. Our study focuses on multistrain mixtures based on Pseudomonas, Bacillus and beneficial fungal strains, while commercial products are also being referred.

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“…Some Bacillus species such as B. subtilis and B. amyloliquefaciens may dedicate up to 8% of their genetic equipment to the synthesis of a wide array of antimicrobial compounds among which lytic enzymes, lantibiotics and a range of non-ribosomally synthesized (lipo)peptides and polyketides (Chen et al, 2009;Rückert et al, 2011). Such antibiotic arsenal and a high rhizosphere fitness probably explain the strong biocontrol potential of bacilli both in vitro and under field conditions and its success as marketed product (Cawoy et al, 2011;Kirk et al, 2013;Larkin and Tavantzis, 2013;Shen et al, 2013;Yang et al, 2013). Among the Bacillus antibiome, cyclic lipopeptides (LPs) of the surfactin, iturin and fengycin families are of high interest not only because they are produced at high rates by B. subtilis/ amyloliquefaciens cells under in vitro conditions in bioreactors, but also because they are the main antimicrobials that can be secreted in biologically relevant amounts under natural conditions of growth in the rhizosphere (Kinsella et al, 2009;Nihorimbere et al, 2012;Dietel et al, 2013;Debois et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Lipopeptides as main ingredients for inhibition of fungal phytopathogens by Bacillus subtilis/amyloliquefaciens

Cawoy

Debois

Franzil

et al. 2014

Microbial Biotechnology

281

166

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Some isolates of the Bacillus subtilis/amyloliquefaciens species are known for their plant protective activity against fungal phytopathogens. It is notably due to their genetic potential to form an impressive array of antibiotics including non-ribosomal lipopeptides (LPs). In the work presented here, we wanted to gain further insights into the relative role of these LPs in the global antifungal activity of B. subtilis/amyloliquefaciens. To that end, a comparative study was conducted involving multiple strains that were tested against four different phytopathogens. We combined various approaches to further exemplify that secretion of those LPs is a crucial trait in direct pathogen ward off and this can actually be generalized to all members of these species. Our data illustrate that for each LP family, the fungitoxic activity varies in function of the target species and that the production of iturins and fengycins is modulated by the presence of pathogens. Our data on the relative involvement of these LPs in the biocontrol activity and modulation of their production are discussed in the context of natural conditions in the rhizosphere.

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Combining antagonistic endophytic bacteria in different growth stages of cotton for control of Verticillium wilt

Cited by 34 publications

References 23 publications

Bacillales Members from the Olive Rhizosphere Are Effective Biological Control Agents against the Defoliating Pathotype of Verticillium dahliae

Bacillales Members from the Olive Rhizosphere Are Effective Biological Control Agents against the Defoliating Pathotype of Verticillium dahliae

Multistrain versus single-strain plant growth promoting microbial inoculants - The compatibility issue

Lipopeptides as main ingredients for inhibition of fungal phytopathogens by Bacillus subtilis/amyloliquefaciens

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