Biomonitoring of heavy metal pollution from water using the blue-green alga Anabaena Variabilis
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502.51 (12)
Natura. Studiul și conservarea naturii. Protecția naturii și a animalelor sălbatice. (672)
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DUDNICENCO, Tatiana. Biomonitoring of heavy metal pollution from water using the blue-green alga Anabaena Variabilis. In: Agronomie şi agroecologie, 1 ianuarie 2018, Chişinău. Chişinău: Centrul editorial UASM, 2018, Vol.52(1), pp. 502-506. ISBN 978-.
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Agronomie şi agroecologie
Vol.52(1), 2018
Simpozionul "„85 ani ai Facultăţii de Agronomie – realizări şi perspective”, dedicat aniversării a 85 de ani de la fondarea Universităţii Agrare de Stat din Moldova"
Chişinău, Moldova, 1 ianuarie 2018

Biomonitoring of heavy metal pollution from water using the blue-green alga Anabaena Variabilis

CZU: 502.51

Pag. 502-506

Dudnicenco Tatiana
 
Moldova State University
 
 
Disponibil în IBN: 10 decembrie 2019


Rezumat

One of the promising directions of applied algology in the solving of environmental problems is the use of algae as bioindicators. Approximately, 10, 4 and 8 and 5times greater inhibition in final yield of A. variabilis occurred at 1, 2μM Cu and 2.5 and 5 μM of Zn, respectively, in semi-continuous culture than in batch culture. Protein and chl a contents of A. variabilis also showed significantly (P< 0.05) higher inhibition by test metals in semicontinuous culture than in batch culture. The greater sensitivity of different parameters of the test organism was related to the high metal content of the cells grown in semi-continuous system. Moreover, enhancement of pH of the culture suspension in batch culture decreased the free ionic metals and thereby reducing metal toxicity. Carotenoids acted as a metal detoxifying agent by minimizing metal-induced inhibition in batch culture.

Cuvinte-cheie
Anabaena variabilis, copper, Zinc, batch culture, Semi-continuous culture, carotenoids