Molybdenum and the nitrate-reducing system from Chlorella
✍ Scribed by C�rdenas, J. ;Rivas, J. ;Paneque, A. ;Losada, M.
- Publisher
- Springer-Verlag
- Year
- 1971
- Weight
- 533 KB
- Volume
- 79
- Category
- Article
- ISSN
- 0003-9276
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✦ Synopsis
The site of molybdenum action in the metabolic pathway leading from nitrate to ammonia in Chlorella cells has been further investigated.
📜 SIMILAR VOLUMES
In Chlorella, as in most photosynthetic organisms, the reduction of nitrate to ammonia proceeds sequentially in two independent and well characterized steps, catalyzed by the enzymes of the nitrate-reducing system: 1. the reduction of nitrate to nitrite by the fiavomolybdoprotein NADH-nitrate reduct
In Chlamydomonas reinhardii the reduction of nitrate to ammonia occurs in two independent enzymatic steps: 1. the two-electrons reduction of nitrate to nitrite catalyzed by NADH-nitrate reductase, and, 2. the six-electrons reduction of nitrite to ammonia catalyzed by ferredoxin-nitrite reductase. Bo
When sputter-deposited Mo thin films were exposed to sulfatereducing bacterium Desulfovibrio desulfuricans, dissolved Mo markedly delayed the culture growth and reduced the rate of sulfate reduction. The interaction led to an orange coloration of the culture liquid. X-ray photoelectron spectroscopy
Chlorella vulgaris growing with ammonium nitrate as nitrogen source utilises nil of the ammonium-N before nitrate begins to be assimilated. We have attempted to analyse this phenomenon and have shown that the assimilation of ammonium in some way inhibits nitrate reduction (SYnETT and ~oRt~Is 1963).