International Journal of Environmental Sciences

Volume 2 Issue 4 2012           Pages:2034- 2039

A  study  on  lignin  degrading  fungi  isolated  from the  litter  of evergreen  forests  of  Kodagu (D), Karnataka

Author Information:

Geethanjali. P.A PG Department of Microbiology, Cauvery Campus, Madikeri Karnataka, India

ABSTRACT

Litter forms the major portion of the net primary production in natural ecosystems and in most managed forests and grasslands. Litter is the surface layer of the forest floor consisting of freshly fallen leaves, needles, twigs, stems, bark and fruits. Litter biota varies with depth and with stage of decay. Litter contain about 20-50% lignin. Because of the size and complexity of lignin, its decomposition rate is slow. Fungi especially Basidiomycetes are generally recognized as the major group responsible for lignin degradation. The lignolytic enzymes are being used in food, textile, paper industries and in the degradation of lignin rich agro-waste. In the present work lignin degrading fungi were isolated from the litter of evergreen forest of Kodagu D. About 58% of the total fungi isolated were found to be potential lignin degraders. The isolates were tested for enzyme activity and those showing maximum activity were tested for their efficiency to degrade areca and coffee husk. The Chaetomium sp, Penicillium sp, Aspergillus sp and Trichoderma sp were found to degrade areca and coffee husk effectively. 

Keywords: Degradation, Screening, Lignin, Lignolytic activity, Evergreen forest and Litter

DOI: 10.6088/ijes.00202030087


© 2012 Copyright Geethanjali. P.A, licensee IPA.This is an open access article distributed under the Creative Commons Attribution License (2.0) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. The electronic version of the article can be downloaded below.

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