Induction of resistance against Cercospora leaf spot in safflower by seed treatment with plant growth-promoting rhizobacteria

Govindappa, M. and Rai, V. R. and Lokesh, S. (2014) Induction of resistance against Cercospora leaf spot in safflower by seed treatment with plant growth-promoting rhizobacteria. Archives of Phytopathology and Plant Protection, 47 (20). pp. 2479-2492. ISSN 0323-5408

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Official URL: https://doi.org/10.1080/03235408.2014.880574

Abstract

Out of seven isolates of rhizobacteria, four strains including GBO-3, INR937a, INR937b and IPC-11 were selected as inducers of systemic resistance against Cercospora carthami and tested individually for biological control of different important seed-borne fungal pathogens. The level of control achieved by each rhizobacterium varied with the pathosystem studied. The isolates GBO-3, INR937a, INR937b and IPC-11 exhibited reduced disease intensity in terms of average number of leaf lesions as compared to untreated control in protection experiments against C. carthami. Micromobilised with rhizobacterium GBO-3, INR937a, INR937b and IPC-11 safflower seeds were grown under greenhouse and challenge inoculated with C. carthami were selected for estimation of lipoxygenase, polyphenylalanine ammonia-lyase, peroxidase, polyphenol oxidase and β-1,3 glucanase activities were estimated spectrophotometrically. Increase in all enzymes was detected in foliar extracts from plants at different stages after challenge inoculation.

Item Type: Article
Uncontrolled Keywords: Rhizobiales, Carthamus tinctorius, Cercospora, Rhizobium
Subjects: B Life Science > Biotechnology
B Life Science > Microbiology
Divisions: Department of > Biotechnology
Department of > Microbiology
Depositing User: Arshiya Kousar
Date Deposited: 20 Jun 2019 06:26
Last Modified: 20 Jun 2019 06:26
URI: http://eprints.uni-mysore.ac.in/id/eprint/3331

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