Abstract
The saprobic, cosmopolitan, marine fungi Dendryphiella arenaria and Dendryphiella salina, isolated from various plant and algal substrates from different geographical locations and climatic zones, were studied for their adaptations to the abiotic and biotic parameters commonly found in their natural marine habitats. All the tested strains of D. arenaria and D. salina grew optimally on culture media with added marine salts, at pH values between 6.5 and 8.0 and at an incubation temperature of 25°C. The D. arenaria strains had faster mean colony extension rates under all conditions of culture. All strains exhibited an increased salt optimum with increasing incubation temperature. The TLC profiles of strains of the two species were similar. The culture extracts were antimicrobial, though production of the biologically active metabolites was strain-specific. There were no significant correlations between source of origin and responses to the investigated parameters. These results demonstrate phenotypic plasticity and the ability of each isolate to adapt to diverse biotopes.
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Acknowledgements
We would like to thank Dr. Siegfried Draeger (Technical University Braunschweig, Germany) for aid in the identification of the fungal strains and Prof. Dr. Irineo Dogma, Jr. (University of Santo Tomas, the Philippines) and PD Dr. Christine Boyle for the critical reading and evaluation of the paper. T. E. dela Cruz would like to thank the Deutscher Akademischer Austausch Dienst (DAAD) for the graduate scholarship grant, and BS thanks BASF AG and the Bundesministerium für Bildung und Forschung for financial support.
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dela Cruz, T.E., Wagner, S. & Schulz, B. Physiological responses of marine Dendryphiella species from different geographical locations. Mycol Progress 5, 108–119 (2006). https://doi.org/10.1007/s11557-006-0504-y
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DOI: https://doi.org/10.1007/s11557-006-0504-y