L-Asparaginase activity of fungal endophytes from tabernaemontana heyneana wall. (apocynaceae), endemic to the Western Ghats (India)

Manasa, C. and Nalini, M. S. (2014) L-Asparaginase activity of fungal endophytes from tabernaemontana heyneana wall. (apocynaceae), endemic to the Western Ghats (India). International Scholarly Research Notices. pp. 1-7.

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Official URL: http://dx.doi.org/10.1155/2014/925131

Abstract

“Endophytes,” the microbes residing within the plant tissues, are important sources of secondary metabolites. Tabernaemontana heyneana Wall., a medicinal tree, endemic to the Western Ghats with rich ethnobotanical history and unique chemical diversity, was selected to study fungal endophytes and evaluate them for L-asparaginase activity. Healthy plant parts were selected for the isolation of endophytes following standard isolation protocols. A total of 727 isolates belonging to 20 taxa were obtained. The isolates comprised of bark (11%), twig (22%), leaf (43%), fruit (12.0%), and seeds (12%). Endophytes such as Colletotrichum, Curvularia, Fusarium, Phomopsis, Verticillium, and Volutella colonized T. heyneana plant parts. Fusarium sp., Phomopsis spp., isolate Thlf01, and Fusarium solani were the dominant genera of bark, twig, leaf, fruits, and seed samples, respectively. The endophytes were screened for their ability to utilize L-asparagine by plate assay method. Fusarium spp. exhibited a high level of activity among the nine endophytes tested positive for L-asparaginase activity. Studies underline the potentials of endophyte-derived fungal L-asparaginases as sources of chemotherapeutic agents.

Item Type: Article
Subjects: Agriculture Biological Sciences > Botany
University of Mysore > PG Campuses > Manasagangotri, Mysore > Agriculture Biological Sciences > Botany
Divisions: PG Campuses > Manasagangotri, Mysore > Botany
Depositing User: Praveen Kumari B.L
Date Deposited: 16 Feb 2015 09:33
Last Modified: 16 Feb 2015 10:29
URI: http://eprints.uni-mysore.ac.in/id/eprint/17526

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