Data/hora: 18/06/2024 13:48:26

Biblioteca(s): 	Embrapa Pantanal.	
Data corrente: 	18/11/1999	
Data da última atualização: 	28/03/2017	
Autoria: 	RAMSAY, A. J.	
Afiliação: 	Cawthron Institute (Nelson, New Zealand).	
Título: 	Direct counts of bacteria by a modified acridine orange method in relation to their heterotrophic activity.	
Ano de publicação: 	1978	
Fonte/Imprenta: 	New Zealand Journal of Marine and Freshwater Research, Wellington, v.12, n.3, p.265-269, sept., 1978.	
Idioma: 	Inglês	
Conteúdo: 	Modifying the acridine orange staining procedure used for direct counting of aquatic bacteria, by staining the bacteria after filtering instead of in solution, gave bright fluorescence and eliminated the need for filtering stained samples. Millipore, Sartorius, and Nucleopore filters all gave good results with the staining method. Counts on the Nucleopore polycarbonate filters were about twice as high as on Millipore and Sartorius cellulose filters. Bacteria were counted and their heterophic acitivity measured as uptake and respiration of 14C-glucose in 111 freshwater and marine samples. For standing waters which were not grossly polluted, bacterial counts per millilitre, using Millipore filters, varied between narrow limits (1.16-17.4 X 10 3), but the mean heteroptrophic activity per bacterium showed a much wider range of values (0.6-111 X 10 -11 ug.h-1).	
Palavras-Chave: 	Modificacao; Modification.	
Thesagro: 	Bactéria.	
Thesaurus Nal: 	acridine orange.	
Categoria do assunto: 	--	
Registro original: 	Embrapa Pantanal (CPAP)	
Exemplares: 	CPAP - (42447-1) - ADC - SP - PP - SP16077 -  - 16077 - DIS