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Mineral requirements of the nitrogen-fixing blue-green alga Anabaenopsis raciborskii Wolosz

✍ Scribed by R. S. Sharma; Dr. P. K. Singh

Publisher: John Wiley and Sons
Year: 2007
Tongue: English
Weight: 309 KB
Volume: 24
Category: Article
ISSN: 0233-111X
DOI: 10.1002/jobm.19840240610

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✦ Synopsis

Thc. essent,ial requiremcmts of m5rc:ro-nnd mjcrcic:lements o f a, bloom-forming blue-grwn alga Anabaencpsis raciborskii WOLOSZ have been dctermined on the basis of ALLEN a,nd AnNoN's medium. The requircment o f calcium and phosphorus was low, whereas requirements of sodium and magnesium for algal growth were high. It) was possible to replace potassium by sodium, and sodium was found to be essential for growt>h on Ny. A wide range of nitrat'e concentrations support,cd the growt,h whereas the reyuircment of ammonia aiid urea was low. The groivt,h was dependcnt on molybdenum when the alga was cultivated with N,. Manganew arid iron requirements werc l o w and the alga showcd a narrow range of cobalt tolerance. Modification of ALLEN and ARNON'S medium rcsult'ed in bet'ter growth and IS2 fixation of alga.

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