Assessing synergism of combined applications of Trichoderma harzianum and Pseudomonas fluorescens to control blast and bacterial leaf blight of rice

Jambhulkar, Prashant P.; Sharma, Pratibha; Manokaran, Raja; Lakshman, Dilip K.; Rokadia, P.; Jambhulkar, Nitiprasad Namdeorao

doi:10.1007/s10658-018-1519-3

Cited by 56 publications

(24 citation statements)

References 26 publications

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“…Although there was a significant difference in stem and leaf blight disease suppression among co-inoculated and single treatments, this cannot be considered as Phytophthora fruit blight resistance induced by IT20+SS14; because of the development of the disease symptoms in fruits of treated plants was higher than a single treatment. The results are accordance with Jambhulkar et al [59] indicated the performance of a combination of biocontrol agents in comparison with single application depend on the targeted disease, as observed in rice plants for the combination of Trichoderma and Pseudomonas strains, which was more effective than single against blast disease but not against bacterial leaf blight. This is the first report of changes in expression of some defense-related genes in different tissues of the host plant can play role in tissue-dependent synergistic induced systemic resistance by a combination of two Streptomyces species against PC (Fig 7).…”

Section: Plos Onesupporting

confidence: 90%

Tissue-specific synergistic bio-priming of pepper by two Streptomyces species against Phytophthora capsici

et al. 2020

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Among several studied strains, Streptomyces rochei IT20 and S. vinaceusdrappus SS14 showed a high level of inhibitory effect against Phytophthora capsici, the causal agent of pepper blight. The effect of two mentioned superior antagonists, as single or combination treatments, on suppression of stem and fruit blight diseases and reproductive growth promotion was investigated in pepper. To explore the induced plant defense reactions, ROS generation and transcriptional changes of selected genes in leaf and fruit tissues of the plant were evaluated. The plants exposed to the combination of two species responded differently in terms of H 2 O 2 accumulation and expression ratio of GST gene compared to single treatments upon pathogen inoculation. Besides, the increment of shoot length, flowering, and fruit weight were observed in healthy plants compared to control. Likely, these changes depended on the coordinated relationships between PR1, ACCO genes and transcription factors WRKY40 enhanced after pathogen challenge. Our findings indicate that appropriate tissue of the host plant is required for inducing Streptomyces-based priming and relied on the up-regulation of SUS and differential regulation of ethylene-dependent genes. PLOS ONEPLOS ONE | https://doi.org/10.

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Section: Plos Onesupporting

confidence: 90%

Tissue-specific synergistic bio-priming of pepper by two Streptomyces species against Phytophthora capsici

et al. 2020

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“…A literature survey revealed an increasing number of examples where plant inoculation with compatible strains' mixtures of P. fluorescens and plant mutualistic bacteria (Sundaramoorthy and Balabaskar, 2012;Sundaramoorthy and Balabaskar, 2013;Rathi et al, 2015;Kumar et al, 2016;Sharma et al, 2018) or benefi cial fungi including species of Trichoderma (Thilagavathi et al, 2007, Jain et al, 2012Singh et al, 2013aSingh et al, , 2013bSingh et al, , 2014Ruano-Rosa et al, 2014;Thakkar and Saraf, 2015;Chemelrotit et al, 2017;Patel et al, 2017;Yadav et al, 2017;Jambhulkar et al, 2018), Beauveria (Karthiba et al, 2010;Senthilraja et al, 2013), Pochonia (Siddiqui et al, 2003) and Clonostachys (Karlsson et al, 2015) showed better results than inoculation with individual strains or control treatment, under controlled and fi eld conditions. Furthermore, co-inoculation of specifi c Pseudomonas strains that function as mycorrhiza helper bacteria (MHB) in combination with various arbuscular mucorrhiza fungi (AMF) promoted the growth of maize plants in fi eld conditions better than single AM inoculation (Berta et al, 2014).…”

Section: Pseudomonas-based Multistrain Mixturesmentioning

confidence: 99%

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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“…Meanwhile, the biocontrol mechanism of Trichoderma species is a complex process mediated by the secretion of extracellular enzymes, such as chitinases, β-glucanases, and proteinases, as well as secondary metabolites (Kumar et al, 2014b). Integrated treatment comprising of soil application of combined biocontrol agents was found very effective in reducing the plant mortality, promoting the plant growth, and increasing the yield (Jambhulkar et al, 2018;Kabdwal et al, 2019).…”

Section: Disease Intensitymentioning

confidence: 99%

Application of Bio P60 and Bio T10 Alone or in Combination Against Stem Rot of Pakcoy

2019

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Application of Bio P60 and Bio T10 alone or in combination in suppressing stem rot of pakcoy and on pakcoy growth has been demonstrated. The research was carried out at the Plant Protection Laboratory and Screen House, Faculty of Agriculture, Jenderal Soedirman University. A split-plot design was used with application time (before and after inoculation of Sclerotium rolfsii) as main plot and Bio P60, Bio T10, and Bio P60 + Bio T10) as sub-plot. Observed variables were incubation period, disease intensity, crop height, number of leaves, and crop fresh weight. Results of the research showed that single and combined application of Bio T10 and Bio P60 did not differ in the suppression of stem-end rot in pakcoy. The combination of Bio T10 + Bio P60 was able to control the disease by delaying the incubation period and suppressing the disease intensity respectively by 37.48-39.16% and 54.77-6191% compared to controls. Combined Bio T10 + Bio P60 was able to improve plant height, number of leaves, and fresh weight of plants as 29.99-46.62, 24.39-35.07, and 71,17%, respectively, compared to controls. The results of this study suggest that the raw secondary metabolites of Bio P60 and Bio T10 either alone or in combination could be applied for the prevention or treatment of the diseases in pakcoy.

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Assessing synergism of combined applications of Trichoderma harzianum and Pseudomonas fluorescens to control blast and bacterial leaf blight of rice

Cited by 56 publications

References 26 publications

Tissue-specific synergistic bio-priming of pepper by two Streptomyces species against Phytophthora capsici

Tissue-specific synergistic bio-priming of pepper by two Streptomyces species against Phytophthora capsici

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

Application of Bio P60 and Bio T10 Alone or in Combination Against Stem Rot of Pakcoy

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