Evaluation of fluorescent Pseudomonads and Bacillus isolates for the biocontrol of a wilt disease complex of pigeonpea

Siddiqui, Shahid Ali; Siddiqui, Zaki A.; Ahmad, Iqbal

doi:10.1007/s11274-004-4799-z

Cited by 44 publications

(20 citation statements)

References 4 publications

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“…Various reports have shown that supplementing the soils with fungal or bacterial antagonists reduces incidences of Fusarium wilt (Bapat and Shar, 2000;Singh et al, 2002;Anjaiah et al, 2003;Maisuria et al, 2008). This also confirms the findings of Bapat and Shar (2000), Siddiqui et al (2005), Siddiqui (2006) and Siddiqui and Shakeel (2007) in which they revealed that numerous rhizobacteria have been used as biocontrol agents. Soil amendment with Trichoderma harzianuma all pathogen levels has also been reported to give a disease control of 22-61.5% (Prasad et al 2002).…”

Section: Effect On Germination Percentsupporting

confidence: 79%

Integrated Disease Management for Pigeonpea Wilt Caused by Fusarium udum

Sharma

Mishra

Bhagat

et al. 2019

ASD

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Field experiments were conducted during Kharif seasons of 2013 and 2014 in the farmer's field of Gariyaband, Chhattisgarh, India to find out different integrated management levels of control schedule for pigeonpea wilt disease. All treatments had a significant effect on germination percent, disease incidence, seed yield and disease index in both the consecutive years of experimentation. T 4 -Seed treatment with Thiram + Carbendazim+ Trichoderma viride + Rhizobium + Soil application of Trichoderma viride, resulted in higher germination percentage (96.8 and 97.2), wilt incidence percent at 60 DAS (2.97 and 3.15), wilt incidence per cent at 150 DAS (9.68 and 7.65) and seed yield (15.10 and 16.28 q ha -1 ) during 2013 and 2014, respectively and was found superior over rest of the treatments. The loss in pigeonpea yield was up to the tune of 18.86 to 54.24% due to the incidence of wilt disease.

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Section: Effect On Germination Percentsupporting

confidence: 79%

Integrated Disease Management for Pigeonpea Wilt Caused by Fusarium udum

Sharma

Mishra

Bhagat

et al. 2019

ASD

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“…Several studies have reported that Bacillus strains can be used as biocontrol agents and plant growth promoting inoculants [1,19,28,36,46]. The antagonistic capabilities of B. licheniformis, B. subtilis, B. pumilis, and B. cereus have been demonstrated by several workers [19,31,42,45]. The highest IAA production was recorded for PB-35 (p < 0.05; 29 ± 0.63 μg ml −1 ) on the 6th day.…”

Section: Discussionmentioning

confidence: 93%

Potential biocontrol and superlative plant growth promoting activity of indigenous Bacillus mojavensis PB-35(R11) of soybean (Glycine max) rhizosphere

Prajakta¹,

Suvarna²,

Raghvendra

et al. 2019

SN Appl. Sci.

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Disease control using microbes that exhibit beneficial effects on plants to strengthen the host is a foremost requirement in agriculture. The aim of the present study is to search for an effective biocontrol agent against Rhizoctonia solani endowed with high plant growth potential. A total of 95 bacterial strains were isolated from the soybean plant rhizosphere and screened in vitro against R. solani by dual culture technique, revealing that strain PB-35(R11) was the most efficient for controlling R. solani with 54.835% inhibition. Isolate PB-35 was identified by 16S ribosomal RNA (rRNA) gene sequencing as Bacillus mojavensis. It was observed that, in order to effectively control R. solani in vitro, B. mojavensis produced volatile metabolites. Fourier-transform infrared (FTIR) analysis revealed the presence of aldehyde (CHO) group (1739.79 cm −1), acetyl group (1896.03 cm −1), and cyanide group (2360.87 cm −1) in the crude extract of isolate PB-35(R11). Furthermore, the siderophore, indole acetic acid (IAA), catalase, oxidase, and chitinase production ability as well as phosphate solubilization potential of PB-35(R11) make it beneficial for crop growth and soil biofortification.

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“…Several reports have described Bacillus strains worthy to be used as biocontrol agents for plant diseases (Shoda (Marten et al 2000;Siddiqui et al 2005;Li et al 2007). The correlations amongst the studied species of Bacillus showed that B. subtilis and B. licheniformis are stronger and efficient antagonists than the other species.…”

Section: Discussionmentioning

confidence: 99%

Isolation, evaluation and characterization of Bacillus subtilis from cotton rhizospheric soil with biocontrol activity against Fusarium oxysporum

Gajbhiye

Alok

Meshram

et al. 2009

World J Microbiol Biotechnol

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Present investigation is based on the isolation of Bacillus subtilis from cotton rhizosphere and their evaluation as biocontrol agent against Fusarium oxysporum. The production of extracellular hydrolytic enzyme was studied for determining the antagonism. 43% of 21 isolates were identified under the B. subtilis group on the basis of biochemical characterization. 38% isolates showed competitive activity against Fusarium oxysporum and exhibit more than 50% mycelial inhibition in dual culture bioassay. The pot assay of cotton by seed treatment and soil amendment technique under green house condition showed the competent activity of the isolates in preventing the wilting of cotton seedlings due to F. oxysporum infection. SVI values of 30 day old seedlings indicated that the soil inoculation with B. subtilis BP-2 and seed treatment with B. subtilis BP-9 significantly promoted the growth of cotton seedlings. RAPD profiling revealed the diversity in the Bacillus subtilis group, ranging from 10 to 32%. The discriminative pattern among the isolates belonging to the same species was validated by 16S rDNA partial sequencing which identified them into four different strains of B. subtilis.

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Evaluation of fluorescent Pseudomonads and Bacillus isolates for the biocontrol of a wilt disease complex of pigeonpea

Cited by 44 publications

References 4 publications

Integrated Disease Management for Pigeonpea Wilt Caused by Fusarium udum

Integrated Disease Management for Pigeonpea Wilt Caused by Fusarium udum

Potential biocontrol and superlative plant growth promoting activity of indigenous Bacillus mojavensis PB-35(R11) of soybean (Glycine max) rhizosphere

Isolation, evaluation and characterization of Bacillus subtilis from cotton rhizospheric soil with biocontrol activity against Fusarium oxysporum

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