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<span style="font-size:11.0pt;mso-bidi-font-size: 10.0pt;font-family:"Times New Roman";mso-fareast-font-family:"Times New Roman"; mso-ansi-language:EN-GB;mso-fareast-language:EN-US;mso-bidi-language:AR-SA" lang="EN-GB">Effects of solar radiation on photosynthesis and pigmentation in the red alga <i style="mso-bidi-font-style:normal">Pyropia yezoensis </i>Ueda (Bangiales, Rhodophyta)</span>

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Title Effects of solar radiation on photosynthesis and pigmentation in the red alga Pyropia yezoensis Ueda (Bangiales, Rhodophyta)
 
Creator Xin-shu, Li
Zi-hui, Feng
Pei-min, He
 
Subject Pyropia yezoensis
UV radiation
Effective quantum yield
Growth
Pigments
 
Description 473-480
The effects of solar UV radiation (280-400 nm) on growth, photosynthesis and pigments of red alga Pyropia yezoensis were investigated when the thalli were cultured
under solar radiation with or without UV. Most of inhibition and lowest
recovery about photosynthetic performance were found in the thalli exposed to
full solar spectrum. UV-B (218-315 nm)
decreased the growth rate under both high light (HL)
and low light (LL) conditions. Presence
of UV-A (315-400 nm) enhanced the
phycobiliprotein content, while UV-B inhibited it. UV played a positive role in
stimulating the synthesis of carotenoid and UV-absorbing compounds, which
contributed to the protection of the photosynthetic apparatus. Results showed
that high light and UV radiation inhibited photosynthesis and growth of P. yezoensis, but a few basic physiological
strategies were activated when the thalli were cultured under high solar
irradiance, such as dynamic photo inhibition and accumulation of carotenoids
and UV-absorbing compounds.
 
Date 2014-04-23T09:43:15Z
2014-04-23T09:43:15Z
2014-04
 
Type Article
 
Identifier 0975-1033 (Online); 0379-5136 (Print)
http://hdl.handle.net/123456789/28635
 
Language en_US
 
Rights CC Attribution-Noncommercial-No Derivative Works 2.5 India
 
Publisher NISCAIR-CSIR, India
 
Source IJMS Vol.43(4) [April 2014]