JEB logo

Journal of Environmental Biology

pISSN: 0254-8704 ; eISSN: 2394-0379 ; CODEN: JEBIDP
About Journal
    Home
    Obituary: Dr. R. C. Dalela
    Editorial Board
    Reviewer Panel
    Publication Policies
    Guidelines for Editors
    Guidelines for Reviewers
    Abstracting and Indexing
    Subscription and Payments
    Contact Journal
    About Triveni Enterprises
 
Read Journal
    Current Issue
    Journal Archives
 
For Authors
    Guidelines for Authors
    Terms and Conditions
    Author Resources
    Fees and Payments
    Track Paper Status
 

Google Search the Journal web-site:


    Abstract - Issue Apr 2007, 28 (2)                                     Back


paper

Artificial UV-B induced changes in pigmentation of marine diatom Coscinodiscus gigas

 

A. Yogamoorthi*

Centre for Futures Studies, Pondicherry University, Pondicherry-605 014, India

(Received: Decemebr 22, 2004 ; Revised received: May 01, 2005 ; Accepted: June 09, 2005)

Abstract: In vitro studies in marine diatom Coscinodiscus gigas revealed that artificial UV-B radiation (313 nm) at a dose level of 0.4W m-2 for a continuous period of 3 hours in a UV treatment chamber caused disbursement of chromatophores from their normal loci and resulted in clumping / aggregation of chromatophores exhibiting a phenomenon called UV-B induced syntrophism . It is also understood that such clumping could cause only insignificant reduction in photosynthetic oxygen release.

Key words: UV-B radiation, Marine diatom, Chromatophore distribution and changes

 

Copyright ? 2007 Triveni Enterprises. All rights reserved. No part of the Journal can be reproduced in any form without prior permission. Responsibility regarding the authenticity of the data, and the acceptability of the conclusions enforced or derived, rest completely with the author(s).