Effect of 2,4-dichlorophenoxyacetic acid on growth, protein and chlorophyll-a content of Chlorella vulgaris and Spirulina platensis cells.
J Environ Biol
;
2008 Mar; 29(2): 175-8
Artigo
em Inglês
| IMSEAR
| ID: sea-113804
ABSTRACT
In this study, effect of different 2,4 -dichlorophenoxyacetic acid (2,4-D) concentrations (0.0, 9.10(-5), 9.10(-4), 9.10(-3) and 9.10(-2) mM) on growth rate, content of protein and chlorophyll-a in Chlorella vulgaris and Spirulina platensis cells was investigated. The most stimulatory effect on growth rate, protein and pigment ratio of C. vulgaris and S. platensis was observed at 9.10(-4) mM concentrations of 2,4-D. The results show that low concentrations of 2,4-D have hormonal effect due to being a synthetic auxin. Cell number protein and pigment rates were inhibited at 9.10(-2) mM concentration in C. vulgaris. Such parameters were inhibited in S. platensis, both at 9.10(-3) and 9.10(-2) mM 2,4-D concentrations. This is due to herbicidal effect of high concentrations of 2,4-D. S. platensis was found to be more sensitive than S. vulgaris to 2,4-D applications. The use of algae as bio-indicators in herbicide contaminated fresh water habitats, was discussed.
Texto completo:
DisponíveL
Índice:
IMSEAR (Sudeste Asiático)
Assunto principal:
Pigmentos Biológicos
/
Poluentes Químicos da Água
/
Proteínas Nucleares
/
Cinética
/
Clorofila
/
Chlorella vulgaris
/
Ácido 2,4-Diclorofenoxiacético
/
Relação Dose-Resposta a Droga
/
Spirulina
/
Água Doce
Idioma:
Inglês
Revista:
J Environ Biol
Ano de publicação:
2008
Tipo de documento:
Artigo
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