Diversity of Phylloplane mycobiota of Avicennia marina (Forssk.) Vierh, and Rhizophora mucronata Poir, at Indus delta, Sindh coast, Pakistan
2013
Shaukat, S.S. (Karachi Univ. (Pakistan). Inst. of Environmental Studies) | Zafar, H. (Federal Urdu Univ. of Arts, Science and Technology, Karachi (Pakistan). Dept. of Botany) | Ahmed, W. (Karachi Univ. (Pakistan). Inst. of Environmental Studies) | Khan, M.A. | Zaidi, S.
Phylloplane fungal assemblages of two mangrove species Avicennia marina and Rhizophora mucronata were investigated at two sites each. Altogether twenty-three fungal species and 16 genera were recorded. Greater number of species and genera were recorded for Rhizophora mucronata. Among the sites studied, Keti Bunder showed the highest number of fungal species and genera associated with the phylloplane. In general, the phylloplane mycobiota was dominated by the genera Aspergillus, Cladosporium, Alternaria and Fusarium. The genus Aspergillus was represented by six species. Aspergillus niger, A. fumigatus and A. flavus were most abundant.as measured by CFUs/cm2 of phylloplane. Species diversity and its components for the fungal communities were estimated. It was found that the general diversity (H') was slightly but consistently higher for Rhizophora mucronata compared to Avicennia marina. However, equitability (J') was more or less equal for the two mangrove species. Regarding sites, equitability was slightly higher for Rehree Island. High qualitative similarities of phylloplane mycobiota were found between species and between sites. The correspondence between air-spora and the phylloplane fungal assemblages is discussed.
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