Iron induced metabolic changes in the diazotrophic cyanobacterium Anabaena PCC 7120

Iron induced changes in growth, N2-fixation, CO2 fixation and photosynthetic activity were studied in a diazotrophic cyanobacterium Anabaena PCC 7120. Iron at 50 microM concentration supported the maximum growth, heterocyst frequency, CO2 fixation, photosystem I (PS I), photosystem II (PS II) and ni...

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Veröffentlicht in:	Indian journal of experimental biology 2006-10, Vol.44 (10), p.849-851
Hauptverfasser:	Saxena, Rishi Kumar, Raghuvanshi, Ruchika, Singh, Surendra, Bisen, Prakash Singh
Format:	Artikel
Sprache:	eng
Schlagworte:	Anabaena - drug effects Anabaena - growth & development Anabaena - metabolism Carbon Dioxide - metabolism Chlorophyll - metabolism Iron - pharmacology Nitrogen Fixation - drug effects Photosynthesis - drug effects
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Zusammenfassung:	Iron induced changes in growth, N2-fixation, CO2 fixation and photosynthetic activity were studied in a diazotrophic cyanobacterium Anabaena PCC 7120. Iron at 50 microM 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.
ISSN:	0019-5189