A control of gas-vacuolate cyanobacteria


Autoria(s): Walsby, A.E.
Contribuinte(s)

Sutcliffe, D.W.

Jones, J.G.

Data(s)

1992

Resumo

The cyanobacteria that cause problems in water supply are principally the colonial forms that are buoyed up by gas vesicles. The success of these organisms is due, in part, to their gas vesicles, which enable them to perform vertical migrations or to maintain themselves in the euphotic zone. The gas vesicles are also the root cause of the problems. In calm periods they cause the cyanobacteria to float to the water surface forming noxious scums, and they may prevent the colonies from sedimenting in water treatment plants. Gas vesicles are hollow, gas-filled structures; they are rigid but can be collapsed by the application of pressure. Their critical collapse pressure is influenced by their dimensions, which vary in different organisms. Gas vesicles are formed by the assembly of two types of protein, which determine their mechanical and physical properties. Methods for collapsing gas vesicles in natural populations of cyanobacteria will be considered. They may have application to the control of cyanobacteria in water supply.

Formato

application/pdf

Identificador

http://aquaticcommons.org/5301/1/SPEC3p_1992_wals_thec.pdf

Walsby, A.E. (1992) A control of gas-vacuolate cyanobacteria. In: Sutcliffe, D.W. and Jones, J.G. (eds.) Eutrophication: research and application to water supply. Ambleside, UK, Freshwater Biological Association, pp. 150-162. (FBA Special Publications,3)

Idioma(s)

en

Publicador

Freshwater Biological Association

Relação

http://aquaticcommons.org/5301/

Palavras-Chave #Ecology #Limnology #Pollution
Tipo

Book Section

NonPeerReviewed