Growth, survival and reproduction in Chlorella vulgaris and C. variegata with respect to culture age and under different chemical factors

Batch cultures of Chlorella vulgaris and C. variegata reproducing about twice every 5 d within 0-15 d had vegetative cells and autospore mother cells in the ratio of about 19 : 1. Continuous slow or negligible and/or no growth in control cultures older than 15-d or in young cultures supplied with th...

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Published inFolia microbiologica Vol. 52; no. 4; pp. 399 - 406
Main Authors Agrawal, S.C.,University of Allahabad (India). Dept. of Botany, Manisha,University of Allahabad (India). Dept. of Botany
Format Journal Article
LanguageEnglish
Published United States 01.01.2007
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Summary:Batch cultures of Chlorella vulgaris and C. variegata reproducing about twice every 5 d within 0-15 d had vegetative cells and autospore mother cells in the ratio of about 19 : 1. Continuous slow or negligible and/or no growth in control cultures older than 15-d or in young cultures supplied with the antibiotics streptomycin, penicillin, amoxycillin (10-1000 ppm) or tetracycline (10, 100 ppm), and pesticides carbofuran, gammaxine, moticop or iralon (1-100 ppm) was due to slow autospore mother cells dehiscence (leading to an increase in their percentage); while negligible and/or no growth of both algal species in sewage water (100, 25%), detergent (0.1-1%), petrol or kerosene (5-20 %), benzene, toluene or phenol (5, 10%), and pesticides rogor or endosulfan (1, 10 ppm) was due to vegetative cells failure to differentiate into autospore mother cells (leading to decreased/zero autospore mother cells percentage) and/or rapid death of all cells. C. variegata was equally or slightly more sensitive to different chemical stress than C. vulgaris.
Bibliography:http://www.biomed.cas.cz/mbu/folia/
H50
F62
2008000082
P10
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:0015-5632
1874-9356
DOI:10.1007/BF02932095