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IJEB Vol.44(10) [October 2006] >


Title: Iron induced metabolic changes in the diazotrophic cyanobacterium Anabaena PCC 7120
Authors: Saxena, Rishi Kumar
Raghuvanshi, Ruchika
Singh, Surendra
Bisen, Prakash Singh
Keywords: Anabaena
Cyanobacterium
Iron
Metabolic change
Issue Date: Oct-2006
Publisher: CSIR
Abstract: Iron induced changes in growth , N2-fixation, CO2 fixation and photosynthetic activity were studied in a diazotrophic cyanobacterium Anabaena PCC 7120. Iron at 50 ยตM concentration supported the maximum growth, heterocyst frequency, CO2 fixation, photosystem I (PS I), photosystem II (PS II) and nitrogenase activities in the organism. Higher concentration of iron inhibited these processes. Chl a and PS II activities were more sensitive to iron than the protein and PS I activity.
Page(s): 849-851
ISSN: 0975-1009 (Online); 0019-5189 (Print)
Source:IJEB Vol.44(10) [October 2006]

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