Reassessment of redox potential of P 740: the primary electron donor in PSI of the chlorophyll b containing cyanobacterium Acaryochloris marina

Schenderlein, M.; Cetin, M.; Schlodder, E.; Benson, S.; Sharma, P.K.; Barber, J.; Telfer, A.

dc.contributor.author	Schenderlein, M.
dc.contributor.author	Cetin, M.
dc.contributor.author	Schlodder, E.
dc.contributor.author	Benson, S.
dc.contributor.author	Sharma, P.K.
dc.contributor.author	Barber, J.
dc.contributor.author	Telfer, A.
dc.date.accessioned	2015-06-03T09:52:30Z
dc.date.available	2015-06-03T09:52:30Z
dc.date.issued	2008
dc.identifier.citation	Photosynthesis. Energy from the Sun: 14th International Congress on Pohotosynthesis, Ed By: J. F. Allen, E. Gantt, J. H. Golbeck and B. Osmonds. Springer, Dordrecht, The Netherlands. 2008; 219-222.	en_US
dc.identifier.uri	http://dx.doi.org/10.1007/978-1-4020-6709-9_49
dc.identifier.uri	http://irgu.unigoa.ac.in/drs/handle/unigoa/2079
dc.description.abstract	The oxidation potential of the primary electron donor P740 of photosystem I (PS I) of the chlorophyll d dominated cyanobacterium, Acaryochloris marina, has been reinvestigated. We find a midpoint potential of about 450 mV in a photosystem I-enriched membrane fraction as well as in thylakoids, which is significantly higher than that originally reported by Hu et al. (1998). This value, which is, indeed, very similar to that found for P700 in chlorophyll a dominated organisms, is in agreement with results of Bailleul et al. (this Congress). In addition, the extinction difference coefficient for the oxidation of the primary donor has been determined and a value of 45 (plus or minus 4) mM-1 cm-1 at 740 nm was obtained.
dc.subject	Botany	en_US
dc.title	Reassessment of redox potential of P 740: the primary electron donor in PSI of the chlorophyll b containing cyanobacterium Acaryochloris marina	en_US
dc.type	Book chapter	en_US