SciELO - Scientific Electronic Library Online

vol.32 issue4Mean temperature and salinity along an isopycnal surface in the upper ocean off Baja CaliforniaFish community of a fringing reef at Mochima National Park, Venezuela author indexsubject indexsearch form
Home Pagealphabetic serial listing  

Services on Demand




Related links

  • Have no similar articlesSimilars in SciELO


Ciencias marinas

Print version ISSN 0185-3880


HIRIMUTHUGODA, NY et al. Diversity of phytase-producing marine yeasts. Cienc. mar [online]. 2006, vol.32, n.4, pp.673-682. ISSN 0185-3880.

Marine yeast strains from different habitats were isolated and phytase-producing marine yeasts were screened. Of the 327 yeast strains isolated, 10 showed comparatively higher phytase activity. Physiological and biochemical characters of these 10 strains, and optimum pH and temperature of the crude phytases produced by them were examined. Partial sequences of the 18S rDNA were also analyzed. Based on the physiological and biochemical characters and phylogenetic analyses, the 10 strains were found to be closely related to Hanseniaspora uvarum (strain WZ1), Yarrowia lipolytica (strain W2B), Kodamaea ohmeri (strain BG3), Candida carpophila (strain N12C), Issatchenkia orientalis (strain YF04C), Candida tropicalis (strain MA6), Yarrowia lipolytica (strain YF08), Candida carpophila (strain NY4E), Candida tropicalis (strain YF12C), and Candida tropicalis (strain MB2). They were obtained from gut of unknown fish, gut of Holothuria scabra, gut of Hexagrammos otakii, gut of Hexagrammos otakii, gut of Synechogobius hasta, and seawater. It is interesting to note that some marine yeast strains could produce alkaline phytase. This is the first report of marine yeast strains capable of producing extracellular phytase or cell-bound phytase. The results also indicated that phytase-producing marine yeasts were diverse enough to be used in bioremediation of marine phosphorous pollution.

Keywords : marine yeasts; phytase; genetic diversity; phylogenetic tree.

        · abstract in Spanish     · text in Spanish     · Spanish ( pdf )


Creative Commons License All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License