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Applied and Environmental Microbiology, December 2005, p. 8606-8610, Vol. 71, No. 12
0099-2240/05/$08.00+0     doi:10.1128/AEM.71.12.8606-8610.2005
Copyright © 2005, American Society for Microbiology. All Rights Reserved.

Effect of Iron on Growth and Ultrastructure of Acaryochloris marina

Wesley D. Swingley,1 Martin F. Hohmann-Marriott,1 Tien Le Olson,2 and Robert E. Blankenship2*

School of Life Sciences, Arizona State University, Tempe, Arizona 85287,1 Department of Chemistry and Biochemistry, Arizona State University, Tempe, Arizona 85287-16042

Received 4 August 2005/ Accepted 13 September 2005

The cyanobacterial genus Acaryochloris is the only known group of oxygenic phototrophs that contain chlorophyll d rather than chlorophyll a as the major photosynthetic pigment. Studies on this organism are still in their earliest stages, and biochemical analysis has rapidly outpaced growth optimization. We have investigated culture growth of the major strains of Acaryochloris marina (MBIC11017 and MBIC10697) by using several published and some newly developed growth media. It was determined that heavy addition of iron significantly enhanced culture longevity. These high-iron cultures showed an ultrastructure with thylakoid stacks that resemble traditional cyanobacteria (unlike previous studies). These cultures also show a novel reversal in the pigment ratios of the photosystem II signature components chlorophyll a and pheophytin a, as opposed to those in previous studies.

* Corresponding author. Mailing address: Department of Chemistry and Biochemistry, Arizona State University, Tempe, AZ 85287-1604. Phone: (480) 965-4430. Fax: (480) 965-2747. E-mail: Blankenship{at}asu.edu.

Applied and Environmental Microbiology, December 2005, p. 8606-8610, Vol. 71, No. 12
0099-2240/05/$08.00+0     doi:10.1128/AEM.71.12.8606-8610.2005
Copyright © 2005, American Society for Microbiology. All Rights Reserved.



This article has been cited by other articles:

  • Bailleul, B., Johnson, X., Finazzi, G., Barber, J., Rappaport, F., Telfer, A. (2008). The Thermodynamics and Kinetics of Electron Transfer between Cytochrome b6f and Photosystem I in the Chlorophyll d-dominated Cyanobacterium, Acaryochloris marina. J. Biol. Chem. 283: 25218-25226 [Abstract] [Full Text]  
  • Swingley, W. D., Chen, M., Cheung, P. C., Conrad, A. L., Dejesa, L. C., Hao, J., Honchak, B. M., Karbach, L. E., Kurdoglu, A., Lahiri, S., Mastrian, S. D., Miyashita, H., Page, L., Ramakrishna, P., Satoh, S., Sattley, W. M., Shimada, Y., Taylor, H. L., Tomo, T., Tsuchiya, T., Wang, Z. T., Raymond, J., Mimuro, M., Blankenship, R. E., Touchman, J. W. (2008). Niche adaptation and genome expansion in the chlorophyll d-producing cyanobacterium Acaryochloris marina. Proc. Natl. Acad. Sci. USA 105: 2005-2010 [Abstract] [Full Text]  


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