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Cultural studies on Ustilaginoidea virens, the incitant of false smut of rice (Oryza sativa)

Indian Agricultural Research Journals

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Title Cultural studies on Ustilaginoidea virens, the incitant of false smut of rice (Oryza sativa)
 
Creator RANI, RITU
SHARMA, VINEET K
LORE, JAGJEET S
PANNU, P P S
 
Subject Colony, Growth, Germination, Media, Substrate, Sporulation, U. virens
 
Description A study was carried out to find out the favourable culture media for mass multiplication and the effect of carbon sources and duration on chlamydospore germination of Ustilaginoidea virens (Cook.) Tak. Different synthetic and semi synthetic solid, liquid media, substrate media were evaluated for mass multiplication of U. virens. Potato sucrose broth was the best medium for fast mycelia growth (104.80 mg) and sporulation (6.78 × 105 spores/ml), potato dextrose broth also favored mycelial growth, whereas corn meal dextrose broth was not suitable. Out of four solid media tested, maximum colony diameter (68.74 mm) and sporulation (6.86 × 105 spores/ml) was produced by potato sucrose agar followed by potato dextrose agar. Maximum sporulation was produced on substrate media based on barley seeds (5.54 × 105 spores/ml) followed by rice seeds (3.72 × 105 spores/ml) whereas rice husk based media produced minimum sporulation. Higher concentration of sucrose and dextrose at 2 per cent supported maximum germination of spores of U. virens and sucrose was found superior in inducing germination than dextrose. The results of this study help to understand the physiological and biochemical requirements for the growth and development of the pathogen, which could serve as an input in disease management to minimize the effect of false smut disease on rice.
 
Publisher The Indian Journal of Agricultural Sciences
 
Contributor —
 
Date 2015-07-09
 
Type info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
 
Format application/pdf
 
Identifier http://epubs.icar.org.in/ejournal/index.php/IJAgS/article/view/50113
 
Source The Indian Journal of Agricultural Sciences; Vol 85, No 7 (2015)
0019-5022
 
Language eng
 
Relation http://epubs.icar.org.in/ejournal/index.php/IJAgS/article/view/50113/21404
 
Rights Copyright (c) 2015 The Indian Journal of Agricultural Sciences