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    Carbohydrade metabolism in suspended and attached cells of marine fouling diatom, Navicula sp.

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    Recent_Dev_Biofouling_Control_1994_27.pdf (248.6Kb)
    Date
    1994
    Author
    Bhosle, N.B.
    Sawant, S.S.
    Garg, A.
    Wagh, A.B.
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    Abstract
    A marine fouling diatom, @iNavicula@@ sp. was cultured in the laboratory under 12-hour light : 12-hour dark conditions. Cells in suspension and attached to the flask walls were analyzed for chlorophyll a, cell organic carbon, total cell carbohydrate fractions. Maximum chlorophyll a concentrations were obtained on the fifth and eight days of cultivation for suspended and attached cells, respectively. For both cell types, total carbohydrate production increased with the cultivation period. The total carbohydrate : cell carbon ratio also increased with cultivation, being marginally higher for the attached cells. Throughout the experiment, the suspended cells had more acid soluble carbohydrate, whereas the carbohydrate group composition varied with cultivation period for the attached cells. During the initial four-hour dark cultivation period, the attached cells had more alkali-soluble carbohydrates. Following this period, the acid-soluble carbohydrate was the major component of the total carbohydrate of the attached cells in general, more acid-soluble carbohydrate was observed for attached cells, whereas alkali-soluble and residual carbohydrates were more abundant in the suspended cells
    URI
    http://drs.nio.org/drs/handle/2264/7478
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