Toxicity of a rice field herbicide in a nitrogen fixing alga, Cylindrospermum sp.
J Environ Biol
;
2002 Oct; 23(4): 359-63
Article
in English
| IMSEAR
| ID: sea-113581
ABSTRACT
Supplementation of paraquat into the culture medium proved to be highly toxic for a blue-green alga Cylindrospermum sp. A concentration of 15 microg/ml proved algicidal for the test alga. Various concentrations (0.5 microg/ml - 15 microg/ml) of the herbicide affected the growth and reduced chlorophyll and phycocyanin contents of the alga. In addition, it inhibited differentiation of heterocysts and akinetes. The inhibition of algal growth was found to be partially relieved on addition of 500 microg/ml of glucose.
Full text:
Available
Index:
IMSEAR (South-East Asia)
Main subject:
Paraquat
/
Oryza
/
Water Pollutants
/
Cyanobacteria
/
Agriculture
/
Herbicides
Language:
English
Journal:
J Environ Biol
Year:
2002
Type:
Article
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