How do fungi remain hidden in deep-sea sediments?

Ref ID: 19323

Author:

Samir R. Damare* , Chandralata Raghukumar

Author address:

Biological Oceanography Division, MARINEBIOTECH, CSIR- National Institute of Oceanography, Dona
Paula, Goa – 403004, India

Full conference title:

Asian Mycological Congress 2013 and the 13th International Marine and Freshwater Mycology Symposium

Date: 19 August 2014

Abstract:

The presence of fungi, ubiquitous eukaryotes in terrestrial environment, was often questioned
in the marine environments. One single publication (1944) influenced the development of marine
mycology more than any other paper, namely, “œMarine Fungi: Their Taxonomy and Biology” by Barghoorn
& Linder. Deep-sea environment being characterized by different extremities of pressure, temperature
and scarcity of nutrients was overlooked for presence of fungi. Sporadic reports about the presence of
fungi in deep- sea environments have appeared. With the developments in detection methods, there are
more reports being published about the uncultured fungi from different oceans. Here we are discussing
the apparent reason for poor detection and reporting of fungi from deep-sea sediments. Humic material in
terrestrial soil is known to combine with soil particles to form microaggregates. Fungal hyphae further act
on these as binding agents to form macroaggregates by trapping fine particles into the microaggregates
thereby remaining “œhidden” from the most conventional technique microscopic techniques used for
detection. We show here how fungi might produce macroaggregation de novo from dissolved organic
matter (DOM) under simulated deep-sea conditions. Thus, fungi are not only hidden in such deep- sea
sediment aggregates, but may also be actively involved in their formation.

Abstract Number: I2-02

Conference Year: 2013

Link to conference website: NULL

New link: NULL

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