Ultrastructure of the cyanobacterium Nostoc muscorum and exploitation of the culture for hydrogen production.
An effect of various physico-chemical parameters on nitrogenase-catalyzed oxygen-free hydrogen production by Nostoc muscorum was demonstrated. More hydrogen was produced in the light than in the dark. Optimum temperature was 40 degrees C Various sugars increased hydrogen production whereas on easily metabolized nitrogen sources it was inhibited. The production was sensitive to salinity and Fe3+, Cu2+, Zn2+ and Ni2+ ions. Ultrastructural study revealed many electron-dense layers outside the cell-wall area that have not been observed earlier.
Shah
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Postgraduate Department of Biosciences, Sardar Patel University, Vallabh Vidyanagar 388 120, Gujarat, India.
Garg
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N
Madamwar
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D
D002244:Carbon / Q000378:metabolism; D003470:Culture Media; D000458:Cyanobacteria / Q000254:growth & development* / Q000378:metabolism / Q000648:ultrastructure*; D006861:Hydrogen Peroxide / Q000378:metabolism*; D008027:Light; D008854:Microscopy, Electron; D009584:Nitrogen / Q000378:metabolism; D009591:Nitrogenase / Q000378:metabolism; D013696:Temperature
D003470:Culture Media; D002244:Carbon; D006861:Hydrogen Peroxide; D009591:Nitrogenase; D009584:Nitrogen