Studies on sulphur-selenium antagonism in blue-green algae

✍ Scribed by Prakash, G. ;Kumar, H. D.

• Book ID: 104761688
• Publisher: Springer-Verlag
• Year: 1971
• Weight: 347 KB
• Volume: 77
• Category: Article
• ISSN: 0003-9276
• DOI: 10.1007/bf00408611

✦ Synopsis

Anacysti8 nidulans and Anabaena variabilis contain sufficient sulphur reserves to enable them to perform only one round of grow4h cycle in the non-sulphur growth medium. Sulphate, sulphite, L-methionine and n-methionine, each can act as a suitable sulphur source, but they differ in respect of their growth promoting action; sulphate uptake seems to be a light driven phenomenon and the sulphate metabolizing enzymes are inducible in nature. Methionine appears to act as a repressot of sulphate-metabolizing enzymes.