Photosynthetica 2004, 42(4):615-617 | DOI: 10.1007/S11099-005-0021-2

High temperature induced alterations in energy transfer in phycobilisomes of the cyanobacterium Spirulina platensis

S.D.S. Murthy1,*, V. V. Ramanaiah1, P. Sudhir1
1 Department of Biochemistry, Sri Venkateswara University, India

Exposure of intact cells of Spirulina to high temperature (HT) stress (40-60 °C) caused decrease in absorption spectrum and fluorescence emission spectrum. Low temperature emission spectra were altered at phycocyanin (PC) level. Room and low temperature emission spectra of intact phycobilisomes showed that PC was the main target in this cyanobacterium for the altered energy transfer under HT.

Additional key words: absorption spectra; fluorescence emission spectra at room and low temperature

Received: September 17, 2003; Accepted: June 7, 2004; Published: December 1, 2004  Show citation

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Murthy, S.D.S., Ramanaiah, V.V., & Sudhir, P. (2004). High temperature induced alterations in energy transfer in phycobilisomes of the cyanobacterium Spirulina platensis. Photosynthetica42(4), 615-617. doi: 10.1007/S11099-005-0021-2
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