STUDY OF AMNONIFYING BACTERIA BEHAVIOR IN THE LAKES CARIOCA AND D-HELVECIO (RIO-DOCE-VALLEY-MG)
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Data
1993-01-01
Autores
Lacava, P. M.
Rugani, C. A.
Título da Revista
ISSN da Revista
Título de Volume
Editor
Soc Brasileira Microbiologia
Resumo
The study of the amnonifying bacteria behavior in the lakes Carioca and D. Helvecio, which belong to the natural lacustrine system of the Rio Doce Valley - Minas Gerais - Brazil, during the period from March to November, showed a similar seasonal variation in both lakes, with higher population density in March and November (raining period) and lower density in May, July and September (dry period). The vertical variation was also relatively similar for both lakes, were during the thermal stratification the distribution was regular along the water column, while during the period of thermal stratification the populational density was remarkably different at different depths. The characterized ammonifying types to the genera Acinetobacter, Moraxella and Proteus, which in culture reveal high amnonifying activity with values which have reached 30,8 mug/l of ammonia per population unity (105 bacteria/ml).
Descrição
Palavras-chave
AMMONIFYING BACTERIA, AQUATIC BACTERIOLOGY, PROTEUS, MORAXELLA, ACINETOBACTER
Como citar
Revista de Microbiologia. São Paulo: Soc Brasileira Microbiologia, v. 24, n. 1, p. 59-63, 1993.