R. K. Sahu , V. K. Agarwal

Abstract

A total of fourteen fungi have been detected by blotter and agar plate methods from the surface sterilized seeds of Lead tree (Leucaena leucocephala). These fungi were Alternaria alternata , A. tenuissima , Apispora montagnei , Arthrinium euphorbiae , Aspergillus flavus , A fumigatus , A. niger , Curvularia clavata , C. lunata , Fusarium sp. , F. pallidoroseum (syn. F. semitectum) , Paecilomyces variotii , Penicillium chrysogenum and Phoma sp. All fungi , except A. flavus , A. fumigatus , A. niger , C. lunata and Phoma sp. constitute new host records. Whereas , all except A. niger and F. pallidoroseum , have been reported for the first time from India , hence constitute new records on this host from India as well. Agar plate method was found superior over blotter method for the detection of seed borne fungi.

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R. K. Sahu , V. K. Agarwal

Abstract

The fungi namely Aspergillus flavus, A. fumigatus, A. niger, Curvularia lunata, Fusarium equiseti, F. longipes, F. pallidoroseum, Fusarium sp., Paecilomyces variotii, Penicillium pinophilum, Rhizoctonia solani and Rhizopus stolonifer were recorded from the seed coat, endosperm and embryo of normal and discoloured seeds of Horse bean (Parkinsonia aculeata), whereas Apispora montagnei, Aspergillus aculeatus, A. flavus, A. fumigatus, A. niger, Curvularia clavata, C. lunata, Fusarium equiseti, F. pallidoroseum, F., moniliforme, Fusarium spp.,Rhizoctonia solani and Rhizopus stolonifer were found associated with the seed coat, endosperm and embryo of the normal and discoloured seeds oflead tree (Leucaena leucocephala). On the other hand, Aspergillus flavus, A. fumigatus, A. niger, A. ustus, Aspergillus sp., Curvularia lunata, Fusarium compactum, F. longipes, F. pallidoroseum, Fusarium sp. and Penicillium aurantiogriseum were detected in the seed coat, endosperm and embryo of the normal and discoloured seeds of rusty shield bearer (Peltophorum ferrugineum). In general, the percent incidence of fungi recovered from the discoloured seeds was greater in comparison to the normal seeds.

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R.K Sahu , V. K. Agarwal

Abstract

A total of thirteen fungi namely Alternaria tenuissima, Aspergillus flavus, A. fumigatus, A. niger, Curvularia clal'ata, C. lunata, Fusarium moniliforme var. subglutinans, F. pallidoroseum, Penicillium aurintiogriseum, P. chrysogenum, P. purpurogenum, Phomopsis sp. And Schizophyllum commune were found associated with the seeds of Queen's grape myrtle. These fungi have been recovered from the surface sterilized seeds by agar plate and blotter method. All fungi constitute new records for this host in India. Simultaneously, except Aspergillus flavus all other constitute new records for the world as well. Agar plate method yielded more fungal species than the blotter method.

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