Influence of Methyl Bromide Fumigation on Microbe-induced Resistance in Cucumber

Zehnder, G. W.; Yao, Changbin; Wei, Gang; Kloepper, Joseph W.

doi:10.1080/095831500750016488

Cited by 13 publications

(2 citation statements)

References 11 publications

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“…additional treatments of the B. pumillus 7 km during the growing season, could increase either the level or the duration of protection. Data in a report by Zehnder et al. (2000) support this assertion.…”

Section: Discussionmentioning

confidence: 88%

The Effects of Bacillus pumilus, Isolated from Wheat Rhizosphere, on Resistance in Wheat Seedling Roots against the Take‐all Fungus, Gaeumannomyces graminis var. tritici

Sari

Etebarian

Aminian

2007

Journal of Phytopathology

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The aim of this study was to verify that induced resistance was another mechanism through which Bacillus pumilus 7 km can suppress Gaeumannomyces graminis (Sacc.) Von Arx and Oliver var. tritici Walker (Ggt). Also, plant growth-promotion activity of B. pumilus 7 km and its effect on disease severity of take-all were evaluated. Soil was drenched with B. pumilus 7 km and disease severity, root and shoot fresh weights and root and shoot heights were evaluated. The activities of soluble peroxidase (SPOX), ionically cell wall-bound peroxidase (CWPOX), b-1,3-glucanase, b-1,4-glucanase and the contents of total phenolic compounds were also determined. The results indicated that disease severity in the bacterized roots was significantly less than the pathogen control roots. Also this isolate promoted root height, root and shoot fresh weights, compared with the healthy control plants. Wheat plants treated with B. pumilus 7 km showed increased presence of SPOX, CWPOX, b-1,3-glucanase, b-1,4-glucanase and phenolic compounds in bacterized roots challenged with the pathogen. In this treatment, maximum SPOX, b-1,3-glucanase and b-1,4-glucanase activities on day 4 and CWPOX activity on day 8 were recorded. Also, maximum total phenolic concentration on day 6 was recorded. The results suggest that the inhibitory effect of B. pumilus 7 km on the take-all may be related to its ability to enhance defense responses in the wheat roots.www.blackwell-synergy.com

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Section: Discussionmentioning

confidence: 88%

The Effects of Bacillus pumilus, Isolated from Wheat Rhizosphere, on Resistance in Wheat Seedling Roots against the Take‐all Fungus, Gaeumannomyces graminis var. tritici

Sari

Etebarian

Aminian

2007

Journal of Phytopathology

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“…Different rhizobacterial strains including B. subtilis have been previously reported to protect plants against a number of pathogens including viruses. 14,20,27,[34][35][36][37][38] Our recent results showed that A. thaliana plants specifically recruit B. subtilis when experiencing an aerial pathogen attack from DC3000. 31 These results revealed for the first time that the inducible plant responses triggered by DC3000 pathogenesis include the induction of root secretions that effectively recruit B. subtilis in the rhizosphere.…”

Section: Discussionmentioning

confidence: 98%

The rhizobacterial elicitor acetoin induces systemic resistance inArabidopsis thaliana

Rudrappa

Biedrzycki

Kunjeti

et al. 2010

Communicative & Integrative Biology

226

124

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The majority of plant growth promoting rhizobacteria (PGPR) confer plant immunity against a wide range of foliar diseases by activating plant defences that reduce a plant's susceptibility to pathogen attack. Here we show that Arabidopsis thaliana (Col-0) plants exposed to Bacillus subtilis strain FB17 (hereafter FB17), results in reduced disease severity against Pseudomonas syringae pv. tomato DC3000 (hereafter DC3000) compared to plants without FB17 treatment. Exogenous application of the B. subtilis derived elicitor, acetoin (3-hydroxy-2-butanone), was found to trigger induced systemic resistance (ISR) and protect plants against DC3000 pathogenesis. Moreover, B. subtilis acetoin biosynthetic mutants that emitted reduced levels of acetoin conferred reduced protection to A. thaliana against pathogen infection. Further analysis using FB17 and defense-compromised mutants of A. thaliana indicated that resistance to DC3000 occurs via NPR1 and requires salicylic acid (SA)/ethylene (ET) whereas jasmonic acid (JA) is not essential. This study provides new insight into the role of rhizo-bacterial volatile components as elicitors of defense responses in plants.

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Induced Systemic Resistance Mediated by Plant Growth-Promoting Rhizobacteria (PGPR) and Fungi (PGPF)

Bent

Multigenic and Induced Systemic Resistance in Plants

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Influence of Methyl Bromide Fumigation on Microbe-induced Resistance in Cucumber

Cited by 13 publications

References 11 publications

The Effects of Bacillus pumilus, Isolated from Wheat Rhizosphere, on Resistance in Wheat Seedling Roots against the Take‐all Fungus, Gaeumannomyces graminis var. tritici

The Effects of Bacillus pumilus, Isolated from Wheat Rhizosphere, on Resistance in Wheat Seedling Roots against the Take‐all Fungus, Gaeumannomyces graminis var. tritici

The rhizobacterial elicitor acetoin induces systemic resistance inArabidopsis thaliana

Induced Systemic Resistance Mediated by Plant Growth-Promoting Rhizobacteria (PGPR) and Fungi (PGPF)

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