Induction of systemic resistance byPseudomonas fluorescens Pf1 againstXanthomonas oryzae pv.Oryzae in rice leaves

Vidhyasekaran, P.; Kamala, Nilna; Ramanathan, A.; Rajappan, Kim; Paranidharan, V.; Velazhahan, R.

doi:10.1007/bf02983959

Cited by 84 publications

(37 citation statements)

References 39 publications

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“…pryzae, where the disease incidence decreased from 6.8 Á1.2 (Vidhyasekaran et al 2001). In a field trial, Karpagavalli et al (2002) investigated the complementary effect of silica (6 t lignite fly ash (LFA)/ha) along with a foliar spray of the biological control agent, P. fluorescens , on the blast [Magnaporthe grisea ] incidence of rice cultivars IR50 and White Ponni.…”

Section: Cerealsmentioning

confidence: 99%

Pseudomonas fluorescens, a potential bacterial antagonist to control plant diseases

Ganeshan

Kumar

2005

Journal of Plant Interactions

138

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Fluorescent Pseudomonads belong to plant Growth Promoting Rhizobacteria (PGPR), the important group of bacteria that play a major role in the plant growth promotion, induced systemic resistance, biological control of pathogens etc. Many strains of Pseudomonas fluorescens are known to enhance plant growth promotion and reduce severity of various diseases. The efficacy of bacterial antagonists in controlling fungal diseases was often better as alone, and sometimes in combination with fungicides. The present review refers to occurrence, distribution, mechanism, growth requirements of P. fluorescens and diseases controlled by the bacterial antagonist in different agricultural and horticultural crops were discussed. The literature in this review helps in future research programmes that aim to promote P. fluorescens as a potential bio-pesticide for augmentative biological control of many diseases of agriculture and horticultural importance.

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Section: Cerealsmentioning

confidence: 99%

Pseudomonas fluorescens, a potential bacterial antagonist to control plant diseases

Ganeshan

Kumar

2005

Journal of Plant Interactions

138

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“…oryzae in rice (Umesha et al 1998;Vidhyasekaran et al 2001). Many greenhouse studies (Kraus & Loper 1992) and a few field experiments have been conducted (Parke et al 1991;Umesha et al 1998) to show the efficiency of P. fluorescens in the management of many plant diseases.…”

Section: Transmission Of Seed-borne Infection Of Chilli Bymentioning

confidence: 99%

Transmission of seed-borne infection of chilli byBurkholderia solanacearumand effect of biological seed treatment on disease incidence

Umesha

Kavitha²,

Shetty³

2005

Archives Of Phytopathology And Plant Protection

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A survey of chilli fields in the state of Karnataka, India, showed the presence of bacterial wilt disease in important chilli growing regions. The disease incidence ranged from 26 -32%. The pathogen was isolated from infected plant material and seeds. Infected plant material showed the release of milky white bacterial ooze. Burkholderia solanacearum was detected from chilli seeds by liquid assay and its identity was confirmed by biochemical tests, hypersensitive reaction and pathogenicity tests. Seed transmission of the pathogen up to 45% was observed in seeds artificially infested with the pathogen. Among different tissues of the seed, endosperm showed the presence of the pathogen. Biological seed treatment with antagonistic Pseudomonas fluorescens significantly (p = 0.05) improved the seed quality parameters under laboratory conditions and drastically reduced the bacterial wilt incidence under field conditions. Seedborne nature, transmission and effect of Pseudomonas fluorescens in both the forms of pure culture and formulation on seed quality parameters and bacterial wilt incidence are discussed in the present work.

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“…chitinase, gluconase, cellulose, pectinase, protease etc. (Raupach et al, 1996;Van Loon et al, 1998;Vidhyasekaran et al, 2001;Ramamoorthy and Samiyappan, 2001) and enhance the plant growth and yield either directly or indirectly by production of plant growth regulators, hormones like indole acetic acid, gibberlic acid, cytokinins and ethylene (Arshad and Frankenberger, 1993) and solubilization of minerals and nutrients (Gaur, 1990;Cattelan et al, 1999).…”

Section: Discussionmentioning

confidence: 99%

Development of microbial consortia for the management of leaf blight disease of coconut

Johnson

Ramjegathesh²,

Sheela³

et al. 2017

Acta Phytopathologica et Entomologica Hungarica

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The leaf blight disease caused by Lasiodiplodia theobromae is an important foliar disease in coconut that results in a yield reduction of 10-24 per cent in Tamil Nadu, India. In the present study, five Trichoderma viride isolates, Pseudomonas fluorescens and Bacillus subtilis strains were isolated from the coconut rhizosphere and tested against L. theobromae. P. fluorescens Pf1, B. subtilis (Km1) and T. viride (TNAU) isolates were found highly effective against the leaf blight pathogen under in vitro conditions and hence, all the three antagonists were combined together to develop microbial consortia and tested against leaf blight disease under field conditions. Soil application of microbial consortia formulated using talc as a carrier material at 150 g (50 g each) and 300 g (100 g each) doses at different intervals (quarterly, half-yearly and annually) was evaluated for three years from 2011 to 2013. Among the treatments, the fungicide carbendazim was found to be the most effective against coconut leaf blight. Among the treatments with bioagents, soil application of microbial consortia @ 300 g+5 kg of farm yard manure at quarterly interval/palm/year was the best treatment which was followed by the treatment with TNAU Bacillus subtilis (Bs1) mixture in two locations. Confirmatory results were obtained in similar experiments carried out at two different locations during 2013-2014, too.

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Induction of systemic resistance byPseudomonas fluorescens Pf1 againstXanthomonas oryzae pv.Oryzae in rice leaves

Cited by 84 publications

References 39 publications

Pseudomonas fluorescens, a potential bacterial antagonist to control plant diseases

Pseudomonas fluorescens, a potential bacterial antagonist to control plant diseases

Transmission of seed-borne infection of chilli byBurkholderia solanacearumand effect of biological seed treatment on disease incidence

Development of microbial consortia for the management of leaf blight disease of coconut

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