The toxicity of copper and zinc to a few fresh water ciliates in different media

Kasturi Bai, A.R. and Tara, S.V. (1976) The toxicity of copper and zinc to a few fresh water ciliates in different media. Vignana Bharathi (Vignana Bharati Bangalore University journal of science), 2 (2). pp. 87-94. ISSN 0377-8487

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Abstract

This investigation records the effects of Cu and Zn on the morphology, fission rate and nuclear apparatus of 5 fresh water ciliates-​Blepharisma intermedium, Blepharisma seshachari, Spirostomum ambiguum major, Spirostomum ambiguum minor and Frontonia leucas. Cu was more toxic than Zn to the ciliates studied. The effects of these metals were studied on ciliates grown in an enriched org. medium-​hay infusion, inorg. medium-​1​% Cramer Myers and filtered stream water-​the natural medium. 1 Mg of Cu per 100 ml was toxic to the ciliates in all the 3 media. One mg of Cu per 1000 ml was toxic to the ciliates grown in Cramer Myers and the stream water. One mg of Cu per 10,​000 ml was not toxic to the ciliates in all the media. Five mg of Zn per 100 ml was toxic to all the 5 types of ciliates in all the 3 media whereas 1 mg of Zn per 100 ml was not lethal. Morphology, nuclear app., rate of fission and size were also studied.

Item Type: Article
Subjects: Faculty of Science > Environmental and Biological Sciences > Zoology
Divisions: Jnana Bharathi / Central College Campus > Department of Zoology
Depositing User: Ms. Deepa M Kolli
Date Deposited: 22 Sep 2016 09:20
Last Modified: 22 Sep 2016 09:20
URI: http://eprints-bangaloreuniversity.in/id/eprint/5965

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