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Please use this identifier to cite or link to this item: http://drs.nio.org/drs/handle/2264/604

Title: Deep-sea fungi: Occurrence and adaptations
Authors: Damare, S.
Guides: Raghukumar, C.
Citation: Ph.D. Thesis, Goa University - National Institute of Oceanography, Goa, India
Issue Date: 2006
Abstract: Fungi in the marine environment have only been fully recognized since about 1960, and within the group, marine fungi have shown highest decadal indices (% increases in species number over a 10 year period) with respect of description of new species. In spite of this, fungi have remained largely neglected in the vast environment of deep sea, with some sporadic reports appearing once in a while. With this study, it is tried to reduce this void by describing the occurrence and diversity of fungi from the Central Indian Basin. For this, fungi were isolated from the sediments from the Central Indian Basin from an average depth of ~ 5000 m by different techniques viz. dilution plating, particle plating and pressure enrichment technique on board the vessel AA Sidorenko. The particle plating method yielded the lowest number of fungi while dilution plating and pressure enrichment resulted in almost similar recovery of fungi from the sediments. The highest number of species was often obtained at 0-2 cm depth of deepsea sediment cores, while the numbers were much less below 25 cm depth (Table 2). Aspergillus species were the dominant fungi isolated, followed by non-sporulating and unidentified sporulating fungi. However, a one-way analysis of variance (ANOVA) comparing the number of species isolated from different subsections of each core down to 30 cm depth showed that differences between the subsections were not significant. None of the media used for isolation were selective for isolating specific type of fungi.
Document type: Thesis
Copyright: © All rights reserved with Author & Institute affiliated
URI: http://drs.nio.org/drs/handle/2264/604
Appears in Collections:Biological Sciences

Files in This Item:

File Description SizeFormat
chap1_2.pdfTOC & Deep-sea microb.496.23 kBAdobe PDFView/Open
chap3_4.pdfFungi & Fungal diversity900.03 kBAdobe PDFView/Open
chap5_6.pdfGrowth & Adaptations740.73 kBAdobe PDFView/Open
chap7_8.pdfProteases & Role of Fungi711.2 kBAdobe PDFView/Open
chap9_bib.pdfSummary, Appen. & Bibliog.424.41 kBAdobe PDFView/Open

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