Cultural and morphological characterization of rhizospheric isolates of fungal antagonist Trichoderma

The genus Trichoderma contains species that are of a great economic importance due to their ability to act as biological control agents against a large variety of fungal plant pathogens. In the present investigation thirty isolates of the Trichoderma sp. were obtained from the rhizosphere soils of d...

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Bibliographic Details
Published in:Journal of applied and natural science 2014-12, Vol.6 (2), p.451-456
Main Authors: Sharma, K. K., Singh, U. S.
Format: Article
Language:English
Subjects:
Biological control
Conidia
Cultural characteristics
Economic importance
Fungi
Growth patterns
Physical characteristics
Pigmentation
Rhizosphere
Trichoderma
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Summary:The genus Trichoderma contains species that are of a great economic importance due to their ability to act as biological control agents against a large variety of fungal plant pathogens. In the present investigation thirty isolates of the Trichoderma sp. were obtained from the rhizosphere soils of different plants at different locations at Nainital, Almora, Udham Singh Nagar, Derhadun, Haridwar and Tehri Garhwal districts of Uttarakhand (India). The isolates were characterized on the basis of their cultural and morphological characteristics. The cultural characteristics included linear growth, colony colour, pigmentation and growth pattern. Morphological characteristics studied were structure, shape and arrangement of conidiophores, phialides and conidia. Out of thirty isolates, 6 isolates namely PB10, PB13, PB23, PB26, PB27 and PB28 were identified as T. virens and remaining 24 isolates as T. harzianum.
ISSN:0974-9411
2231-5209
DOI:10.31018/jans.v6i2.481