JEB logo

Journal of Environmental Biology

pISSN: 0254-8704 ; eISSN: 2394-0379 ; CODEN: JEBIDP

About Journal
    Editorial Board
    Reviewer Panel
    RnD Division
    Subscription Info
    Contact Journal
 
Read Journal
    Current Issue
    Journal Archives
 
For Authors
    Authoring Guidelines
    Publication Process
    Track Paper Status
 

Search the Journal web-site through Google:


        Abstract - Issue Jul 2008, 29 (4)                                                                                                             Back



Abstract

Interactions between marine facultative epiphyte Chlamydomonas sp. (Chlamydomonadales, Chlorophyta) and ceramiaceaen algae (Rhodophyta)

Tatyana A. Klochkova1, Ga Youn Cho2, Sung Min Boo2, Ki Wha Chung1, Song Ja Kim1 and Gwang Hoon Kim*1

1Department of Biology, Kongju National University, Kongju, Chungnam 314-701, Korea
2Department of Biology, Chungnam National University, Daejon 305-764, Korea

(Received: February 14, 2007; Revised received: October 26, 2007; Accepted: November 27, 2007)

Abstract: Previously unrecorded marine Chlamydomonas that grew epiphytic on ceramiaceaen algae was collected from the western coast of Korea and isolated into a unialgal culture. The isolate was subjected to 18S rDNA phylogenetic analysis as well as ultrastructure and life cycle studies. It had an affinity with the marine Chlamydomonas species and was less related to freshwater/ terrestrial representatives of this genus. It had flagella shorter than the cell body, two-layered cell wall with striated outer surface and abundant mucilaginous material beneath the innermost layer, and no contractile vacuoles. This alga grew faster in mixed cultures with ceramiaceaen algae rather than in any tested unialgal culture condition; the cells looked healthier and zoosporangia and motile flagellated vegetative cells appeared more often. These results suggested that this Chlamydomonas might be a facultative epiphyte benefiting from its hosts. Several ceramiaceaen algae were tested as host plants. Meanwhile, cell deformation or collapse of the whole thallus was caused to Aglaothamnion byssoides, and preliminary study suggested that a substance released from Chlamydomonas caused the response. This is first report on harmful epiphytic interactions between Chlamydomonas species and red ceramiaceaen algae.

Key words: Aglaothamnion, Ceramiaceaen algae, Chlamydomonas, Host-epiphyte interaction, Ultrastructure

PDF of full length paper is available with author (ghkim@kongju.ac.kr)

 

Copyright ? 2008 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).