biologia plantarum

International journal on Plant Life established by Bohumil Němec in 1959

Biologia plantarum 45:157-159, 2002 | DOI: 10.1023/A:1015158204181

Inhibition of Pigments and Phycocolloid in a Marine Red Alga Gracilaria Edulis by Ultraviolet-B Radiation

K. Eswaran1, O.P. Mairh2, P.V. Subba Rao1
1 CSMCRI - Marine Algal Research Station, Mandapam Camp, India
2 Central Salt & Marine Chemicals Research Institute, Bhavnagar, India

Vegetative fragments of the subtidal macroalga Gracilaria edulis (Gmel.) Silva cultured under field conditions at Thonithurai were subjected in the laboratory to UV-B radiation (280 - 320 nm). UV-B inhibited the accumulation of chlorophyll and phycobiliproteins, and lowered agar yield (23 to 43%) and its gel strength (22 to 36%) under 12 to 72 h exposure. The longer the exposure to UV-B radiation the more significant impact on pigments and phycocolloid properties of Gracilaria edulis was observed.

Keywords: agar; chlorophyll; phycobiliproteins; phycocyanin; phycoerythrin
Subjects: chlorophyll, ultraviolet-B; Gracilaria edulis; phycobiliproteins, phycocyanin, phycoerythrin, ultraviolet-B radiation; ultraviolet-B radiation

Published: March 1, 2002  Show citation

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Eswaran, K., Mairh, O.P., & Subba Rao, P.V. (2002). Inhibition of Pigments and Phycocolloid in a Marine Red Alga Gracilaria Edulis by Ultraviolet-B Radiation. Biologia plantarum, 45(1), 157-159. doi: 10.1023/A:1015158204181
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