[Microbiology] Info on the ecology of Nostoc/Anabaena PCC7120?

[Yoram Gerchman]

Greetings all
I am looking for some reference as to the ecology of Nostoc/Anabaena sp.
PCC7120, e.g. were do they naturally live, under what conditions etc. I tried a
few books (and google) but so far no luck.
Many thanks
Yoram

gerchman AT research DOT haifa DOT ac DOT il

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