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Epiphytic effects of Licmophora paradoxa on pigments of Pyropia yezoensis

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Title Epiphytic effects of Licmophora paradoxa on pigments of Pyropia yezoensis
 
Creator Khan, T U
Du, G
Khan, S
Che, S
Ahmed, A
Khurshid, A
 
Subject Epiphytic diatom
Epiphytic effects
Licmophora paradoxa
Pigments
Pyropia yezoensis
 
Description 779-786
Epiphytic diatoms usually cause adverse effects on photosynthesis of the host plants due to shading light or by interfering with the biochemical pathways. The present study investigated the epiphytic effects of the diatom Licmophora paradoxa on the pigments of red alga Pyropia yezoensis, such as the chlorophyll-a (Chl-a), Phycoerythrin (PE), Phycocyanin (PC), Allophycocyanin (APC) and carotenoid contents. The results showed that Chl-a was significantly decreased while other pigments such as PE, PC, APC and carotenoid contents were significantly increased in P. yezoensis due to the attachment of epiphytic diatom L. paradoxa. The present results indicated that epiphytic diatoms produced negative effects on the host PSII reaction center by reducing its main pigment Chl-a. Whereas, antenna pigments of Phycobiliprotein, of P. yezoensis such as PE, PC and APC were increased to capture more light energy supplying photosynthesis. The increase in carotenoid content under this epiphytic situation implied an enhancement of its assisted function in light-harvesting, photoprotection and stress-tolerance mechanism. The present findings contribute to well understanding the response mechanism of host macroalgae to epiphytic microalgae.
 
Date 2022-03-03T06:11:56Z
2022-03-03T06:11:56Z
2021-10
 
Type Article
 
Identifier 2582-6727 (Online); 2582-6506 (Print)
http://nopr.niscair.res.in/handle/123456789/59261
 
Language en
 
Publisher NIScPR-CSIR, India
 
Source IJMS Vol.50(10) [October 2021]