作者: Gerald A. Peters , Osamu Ito
DOI: 10.1007/978-94-009-6201-9_3
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摘要: In the absence of a combined N source in aqueous environment, N2 fixation by endophytic Anabaena can provide Azolla-Anabaena azollae symbioses with their total requirement. When sorces such as ammonium, nitrate or urea are present, these associations assimilate exogenous sources and fix atmospheric simultaneously.