Title of article
Antimicrobial Activity of Solanum torvum Swart. Against Important Seed Borne Pathogens of Paddy
Author/Authors
Lalitha, V Department of Studies in Botany and Microbiology - Maharanis Science College for Women - Palace Road - Bangalore Karnataka State, India , Raveesha, K.A Department of Studies in Botany - Manasagangotri - University of Mysore - Mysore- 570 006 - Karnataka State, India , Kiran, B Department of Microbiology and Biotechnology - CMR Institute of Management Studies - Kalyan nagar - Bangalore
Pages
5
From page
160
To page
164
Abstract
Aqueous and Solvent extracts of leaves of S. torvum viz., Petroleum ether, Benzene, Chloroform, Methanol and Ethanol were tested in vitro for antimicrobial activity following the procedures of poisoned food technique and cup diffusion method against some important seed borne pathogens of paddy viz, Pyricularia oryzae, Alternaria alternata, Bipolaris oryzae, Tricoconis padwickii, Dreschlera tetramera, D. halodes,
Curvularia lunata, F. oxysporum, F. moniliformae, F. solani and Xanthomonas oryzae. Aqueous extracts of leaves (at 25% concentration) showed 100, 47.44, 60.47, 71.50, 56.11, 63.33, 78.62, 66.66, 47.44 and 46.27% inhibition of the test pathogens respectively. Highly significant antifungal activity was observed in Methanolic
and ethanolic extract. The percentage inhibition of the test pathogenic fungi in Methanolic extract was 100% (P.oryzae), 74.42 (A. alternata), 65.68 (B oryzae), 87.62 (C. lunata), 100% (T. padwickii), 63.33 (D.halodes), 60.31 D. (tetramera), 76.01 (F.moniliformae), 59.21 (F. oxysporum), 43.91% (F.solani) and zone of inhibition of
Xanthomonas campestris pv oryzae was 18 and 30mm in Methanol and ethanol extract.
Keywords
Seed borne pathogens , Antimicrobial activity , Solanum torvum , Paddy
Journal title
Astroparticle Physics
Serial Year
2010
Record number
2426655
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