Lytic enzymes induced by Pseudomonas fluorescens and other biocontrol organisms mediate defence against the anthracnose pathogen in mango

Vivekananthan, R.; Ravi, M. V.; Ramanathan, A.; Samiyappan, R.

doi:10.1023/b:wibi.0000023826.30426.f5

Cited by 97 publications

(33 citation statements)

References 42 publications

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“…provided excellent control of the branch canker disease. Similar results were reported by Nandakumar et al [18], Vivekananthan et al [19], Vidhyasekaran and Muthamilan [20] and Ramamoorthy et al [21], for the control of various fungal pathogens. When groundnut plants were sprayed with P. fluorescencs, increased activity of PAL was observed and correlated with the lesser disease incidence [22].…”

Section: Resultssupporting

confidence: 79%

In vitro Studies on Branch Canker Pathogen (Macrophoma sp.) Infecting Tea

P¹,

Premkumar²,

B³

2015

J Plant Pathol Microbiol

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Section: Resultssupporting

confidence: 79%

In vitro Studies on Branch Canker Pathogen (Macrophoma sp.) Infecting Tea

P¹,

Premkumar²,

B³

2015

J Plant Pathol Microbiol

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“…lycopersici under field conditions. Similarly, PGPR were reported to control fungal diseases caused by soil borne and leaf spot pathogens in wide range of crops (Wei et al, 1996;Viswanathan and Samiyappan, 2001;Ramamoorthy et al, 2002;Vivekananthan et al, 2004). In the present study, the lycopene content in DVRT1 was found to increase from first harvest onwards and reached maximum at the third harvest.…”

Section: Discussionsupporting

confidence: 59%

Plant growth promoting rhizobacteria (PGPR) induces resistance against Fusarium wilt and improves lycopene content and texture in tomato

Loganathan¹,

Garg²,

Venkataravanappa³

et al. 2014

Afr. J. Microbiol. Res.

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Plant growth promoting Bacillus subtilis (BS2) was found effective against tomato wilt caused by Fusarium oxysporum f sp. lycopersici under field conditions. Pretreatment of tomato plants with B. subtilis BS2 significantly induced the activities of defense related enzymes viz., peroxidase, polyphenol oxidase, chitinase and phenylalanine ammonialyase and phenolics when challenged with the pathogen. Apart from disease control, BS2 improved the fruit quality with high lycopene (76.30 mg/kg against control, 40.34 mg/kg) and texture (90.5 F max against control, 56.35 F max ) during harvest and even 15 days after harvest, similar trend was maintained unequivocally indicating that plant growth promoting rhizobacteria (PGPR) can improve the nutritional quality as well as shelf life of the fruits.

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“…Production of antibiotics viz., Siderophore, HCN, pyrrolnitrin, phenazine and 2,4-diacetyl phloroglucinol and lytic enzymes by P. fluorescens against fungal pathogens were reported by many workers [3][4][5]16]. The above facts suggest that the inhibition of root rot pathogen, M. Phaseolina by P. fluorescens Pf1 may be due to the production of antibiotics, siderophore mediated competition and lytic enzymes, viz., chitinase, β-1,3-glucanase which degraded the fungal cell wall and restricted the growth of fungus under in vitro conditions.…”

Section: Resultsmentioning

confidence: 92%

“…Among the PGPR, fluorescent pseudomonads are the most exploited bacteria for biological control of soil-borne and foliar plant pathogens. In the past three decades, numerous strains of fluorescent pseudomonads have been isolated from the rhizosphere soil and plant roots by several workers and their biocontrol activity against soil-borne and foliar pathogens were reported [3]. Fluorescent pseudomonads are non-pathogenic rhizobacteria which suppress the soil-borne pathogens through rhizosphere colonization, antibiosis, iron chelation by siderophore production and ISR.…”

Section: Introductionmentioning

confidence: 99%

Bio Control Potential of Pseudomonas fluorescens against Coleus Root Rot Disease

Ramjegathesh¹

2014

J Plant Pathol Microbiol

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Ten different strains of Pseudomonas fluorescens were isolated from coleus rhizosphere except the pf1 strain and identified by biochemical tests. These strains were screened against Macrophomina phaseolina (Tassi) Goid, the causal organism of coleus root rot. The results revealed that Pf1 strains recorded maximum inhibition of mycelial growth against control. The mechanism of Pseudomonas strains namely the iron-chelating agent (siderophore), volatiles (HCN) and antibiotic (Fluorescein and pyocyanin) production tests were studied and reacted for siderophore, antibiotic and HCN production. The talc-based formulation of Pf1 and CPF1 was prepared and the bio-efficacy was tested under greenhouse conditions. The stem cutting and soil application of the talc-based formulation of Pf1 significantly reduced the root rot incidence and increased shoot and tuber length also.

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Lytic enzymes induced by Pseudomonas fluorescens and other biocontrol organisms mediate defence against the anthracnose pathogen in mango

Cited by 97 publications

References 42 publications

In vitro Studies on Branch Canker Pathogen (Macrophoma sp.) Infecting Tea

In vitro Studies on Branch Canker Pathogen (Macrophoma sp.) Infecting Tea

Plant growth promoting rhizobacteria (PGPR) induces resistance against Fusarium wilt and improves lycopene content and texture in tomato

Bio Control Potential of Pseudomonas fluorescens against Coleus Root Rot Disease

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