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Applied and Environmental Microbiology, August 1999, p. 3392-3397, Vol. 65, No. 8
0099-2240/99/$04.00+0
Copyright © 1999, American Society for Microbiology. All rights reserved.

Optical Characteristics of the Phototroph Thiocapsa roseopersicina and Implications for Real-Time Monitoring of the Bacteriochlorophyll Concentration

A. Gitelson,1,* R. Stark,2 I. Dor,3 O. Michelson,3 and Y. Z. Yacobi4

Remote Sensing Laboratory, J. Blaustein Institute for Desert Research and Department of Geological and Environmental Sciences, Ben-Gurion University of the Negev, Sde-Boker 84990,1 Department of Geological and Environmental Sciences, Ben-Gurion University of the Negev, Beer-Sheva 84100,2 Division of Environmental Sciences, School of Applied Science and Technology, The Hebrew University of Jerusalem, Jerusalem,3 and Israel Oceanographic and Limnological Research, Yigal Allon Kinneret Limnological Laboratory, Tiberias,4 Israel

Received 4 December 1998/Accepted 23 May 1999

Optical characteristics of a Thiocapsa roseopersicina culture and environmental samples containing T. roseopersicina were investigated in the spectral range of 400 to 1,100 nm (absorption coefficient, diffuse attenuation coefficient, and reflectance). Specific absorption coefficients of T. roseopersicina at wavelengths of 480, 520, 550, 580, 805, 860, and 880 nm were determined. It is suggested that the optical properties of T. roseopersicina in the near-infrared range of 800 to 930 nm, confirmed in this study, may be used for development of remote sensing techniques for real-time monitoring of T. roseopersicina and other bacteriochlorophyll a-containing microbes.

* Corresponding author. Mailing address: Remote Sensing Laboratory, J. Blaustein Institute for Desert Research and Department of Geological and Environmental Sciences, Ben-Gurion University of the Negev, Sde Boker 84990, Israel. Phone: 972 7 6596 858. Fax: 972 7 6596 909. E-mail: gitelson{at}bgumail.bgu.ac.il.

Applied and Environmental Microbiology, August 1999, p. 3392-3397, Vol. 65, No. 8
0099-2240/99/$04.00+0
Copyright © 1999, American Society for Microbiology. All rights reserved.




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Copyright © 1999 by the American Society for Microbiology. All rights reserved.