Calcification in Marine-Occurring Yeasts
Five species of yeasts, including three of marine origin, were tested for their ability to induce CaCO3 crystal formation in four different artificial media. Various cell conditions were used as inocula: active yeast cells, washed and unwashed “exhausted” cells, old cells and cell pieces (disrupted cells). Round or bundle-shaped crystals were formed after 18 days in cultures of washed “exhausted” cells of two sediment yeasts. Cell debris of a sediment isolate and of a terrestrial form showed roundish crystals after two days. Suitable controls were included in all cases, showing that the crystals were definitely cell-associated. The data suggest a possible geochemical role of marine sediment yeasts.
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Document Type: Research Article
Publication date: 1964-01-01
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