Biocontrol of charcoal rot in sorghum by fluorescent pseudomonads associated with the rhizosphere

Das, I. K.; Indira, S.; Akula, Annapurna; Prabhakar, .; Seetharama, N.

doi:10.1016/j.cropro.2008.07.001

Cited by 47 publications

(25 citation statements)

References 23 publications

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“…Khan et al (2008) also reported production of gibberellins GA1, GA3, GA4 and GA7 by P. citrinum help in plant growth-promotion. The M. phaseolina, causes the charcoal rot disease in sorghum when the plants are in stressed conditions such as high temperature and low moisture (Das et al, 2008). In our previous study, P. citrinum VFI-51 was also reported to tolerate harsh conditions such as high salinity (up to 20% NaCl), high pH (up to pH 11) and high temperatures (up to 40°C) and resistance to fungicides such as Bavistin and Thiram at field application levels (Sreevidya et al, 2015).…”

Section: A) B)mentioning

confidence: 99%

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Penicillium citrinum VFI-51 as biocontrol agent to control charcoal rot of sorghum (Sorghum bicolor (L.) Moench)

Sreevidya¹,

Gopalakrishnan²

2016

Afr. J. Microbiol. Res.

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In our earlier investigation, a fungal isolate Penicillium citrinum VFI-51 and its secondary metabolite was reported to have antagonistic potential against Botrytis cinerea, the causative agent of Botrytis gray mold disease in chickpea. In the present investigation, P. citrinum VFI-51 was further evaluated for its antagonistic potential against Macrophomina phaseolina, the causative agent of charcoal rot in sorghum. P. citrinum VFI-51 inhibited M. phaseolina in both dual culture as well as secondary metabolite production assays. In the in vivo blotter paper assay, under light chamber conditions, P. citrinum VFI-51 controlled 85% of the charcoal rot disease on the roots when compared to the positive control. Under greenhouse conditions, when M. phaseolina was inoculated by tooth pick method in to the stalk of sorghum plant, the charcoal rot disease was controlled by 75% in P. citrinum VFI-51 treatment over the positive control. This study demonstrates the biocontrol potential of P. citrinum VFI-51 against charcoal rot of sorghum.

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Section: A) B)mentioning

confidence: 99%

“…M. phaseolina is a soil borne pathogen causing losses up to 64% in southern parts of India, in post rainy sorghum (Das et al, 2008). Improved high-yielding cultivars under good management practices also tend to be susceptible to the disease resulting in high yield losses (Mughogho and Pande, 1984).…”

Section: Introductionmentioning

confidence: 99%

Penicillium citrinum VFI-51 as biocontrol agent to control charcoal rot of sorghum (Sorghum bicolor (L.) Moench)

Sreevidya¹,

Gopalakrishnan²

2016

Afr. J. Microbiol. Res.

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“…Besides the direct effect, PGPR affect the plant by controlling pathogens which are mostly involved in competition and production of metabolites that affect the pathogen directly by siderophores production, lytic enzymes and antibiotics production and by induced Pseudomonas chlororaphis Sorghum Macrophomina phaseolina [85] Pseudomonas fluorescens Tobacco Tobacco necrosisvirus [86] Pseudomonas fluorescens MKB 100 and MKB 249, Wheat and barley Fusarium culmorum [87] Pseudomonas aeruginosa Mung bean Root rot [88] Enterobacter sp. Chickpea Fusarium avenaceum [89] Azospirillum brasilense Prunus cerasifera L.…”

Section: Co-inoculation Of Plant With Pgprmentioning

confidence: 99%

Plant Growth Promoting Rhizobacteria: Mechanism and Current Prospective

Kundan¹,

Pant²

2015

J Fertil Pestic

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Despite the phytotoxicity of olive-mill solid waste (OMSW) due to its high polyphenols content, OMSW have fertilizer characteristics, which make it a potential source for organic fertilization. Composting of OMSW treatment process was conducted in this study to eliminate the phytotoxicity and solve the environmental impact of this waste. Recycling of OMSW was carried out via composting of six batches of trials using equal proportions of OMSW, cow manure (C) and wheat straw (W). The treatment process was performed at two time intervals (two and five months), after each one, the recipient species (Vicia faba L.) was planted. The results showed the efficiency of composting in reducing OMSW original toxicity after two months than five months. The germination percentage and the plumule and radicle lengths of V. faba showed a significant improvement when the OMSW was composted with C at different proportions before using as soil amendments. Besides, the total biomass was noticeably increased at the high concentration of C-OMSW. Similarly, the total pigments concentration in V. faba was increased by using various composts after two months, where the highest pigment content was observed at 40% W-OMSW treatment.The maximum uptake of potassium and sodium was recorded through the application of W-OMSW compost to soil after two months. Furthermore, the C-OMSW composts showed the highest concentration of nitrogen, calcium, iron and manganese. However, the C-W-OMSW composts recorded the highest concentration of phosphorous, magnesium and copper. Finally, this study developed a low cost treatment that will enable the growers to convert OMSW into a natural nontoxic compost rich with essential nutrients which have positive effects on plants growth.

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“…Different mechanisms have been implicated in the suppression of fungal root disease by biocontrol agents, such as the competition for nutrients and the production of biocontrol metabolites (extracellular antibiotics, volatile substances, siderophores, lytic enzymes, hydrogen cyanide, etc.) (Das et al 2008;Naureen et al 2009;Erdogan and Benlioglu 2010).…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Streptomyces spp. against Fusarium oxysporum f. sp. ciceris for the management of chickpea wilt

Amini¹,

Agapoor²,

Ashengroph³

2016

Journal of Plant Protection Research

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Abstract:In this study, about 112 isolates of Streptomyces were isolated from chickpea rhizospheric soils. Among the isolated strains, five showed strong inhibitory effects against chickpea Fusarium wilt caused by Fusarium oxysporum f. sp. ciceris in vitro using plate assay and selected for further studies. The selected strains were identified as Streptomyces spp. based on morphological and biochemical characterization as well as 16S rDNA sequences analysis. Our results assigned them to strains related to genus of Streptomyces.In vitro, antagonistic effects of Streptomyces strains against the disease were evaluated through the dual-culture method, volatile and non-volatile metabolites, siderophore, protease and chitinase production. All bacterial strains inhibited mycelial growth of the pathogen ranging from 26 to 44.2% in dual culture assay. The non-volatile extract of five of the Streptomyces strains inhibited more than 50% growth of the pathogen, whereas volatile compounds were less effective on mycelial growth inhibition (20.2 to 33.4%). The ability of the biocontrol agents to produce siderophore and protease were varied, whereas, production of chitinase was detected for all strains. Results of the greenhouse assay indicated that all biocontrol agents reduced disease severity (ranging from 38.7 to 54.8%).Accordingly, strain KS62 showed higher control efficacy (54.8%). In addition, the biomass of chickpea plants (plant height and dry weight) significantly increased in plants treated with Streptomyces strains compared to non-bacterized control. The results of this study showed that it may be possible to manage chickpea Fusarium wilt disease effectively by using Streptomyces species, as biocontrol agents. Therefore, evaluating their efficiency under field conditions is needed.

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Biocontrol of charcoal rot in sorghum by fluorescent pseudomonads associated with the rhizosphere

Cited by 47 publications

References 23 publications

Penicillium citrinum VFI-51 as biocontrol agent to control charcoal rot of sorghum (Sorghum bicolor (L.) Moench)

Penicillium citrinum VFI-51 as biocontrol agent to control charcoal rot of sorghum (Sorghum bicolor (L.) Moench)

Plant Growth Promoting Rhizobacteria: Mechanism and Current Prospective

Evaluation of Streptomyces spp. against Fusarium oxysporum f. sp. ciceris for the management of chickpea wilt

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