Bakterie nitkowate w osadzie czynnym - przegląd morfotypów, wyznaczniki morfologiczne i molekularne

• Autorzy: Miłobędzka, A. , Muszyński, A.

Warianty tytułu

EN

Filamentous bacteria in activated sludge - review of morphotypes, the morphological and molecular criteria

• Języki publikacji: PL

Abstrakty

PL

Bakterie nitkowate w osadzie czynnym tworzą szkielet kłaczków i rozkładają polimery zawarte w ściekach. Przy ich nadmiernym wzroście zmienia się struktura kłaczków i pojawiają się problemy eksploatacyjne - pienienie i pęcznienie osadu. Skuteczne zwalczanie tych zjawisk jest łatwiejsze, gdy uda się zidentyfikować organizmy za nie odpowiedzialne. Klasyczna analiza mikroskopowa pozwala określić jedynie morfotyp bakterii nitkowatych. Metoda ta jest niedoskonała, gdyż dany morfotyp może obejmować kilka typów filogenetycznych o różnych właściwościach ekofizjologicznych, co utrudnia zwalczanie bakterii odpowiedzialnych za pęcznienie osadu. W celu właściwej identyfikacji należy wykorzystać techniki biologii molekularnej, jak np. metodę fluorescencyjnej hybrydyzacji in situ (FISH).

EN

Filamentous bacteria form the backbone of flocs in activated sludge and decompose polymers in wastewater. Their excessive growth results in changes in the structure of the flocs and operational problems - bulking and foaming. The effective control of these phenomena requires a reliable identification of microorganisms causing these problems. Conventional microscopic analysis of activated sludge leads only to a morphotype classification. This method is not perfect because a morphotype may include several phylogenetic ecotypes with different ecophysiological properties. Therefore, the control of bacteria growth responsible for sludge bulking is difficult. Molecular biology techniques, e.g. the method of fluorescence in-situ hybridisation (FISH), should be used for reliable identification.

Słowa kluczowe

PL

bakterie nitkowate; morfotyp; FISH

EN

filamentous bacteria; morphotype; FISH

• Czasopismo: Prace Naukowe Politechniki Warszawskiej. Inżynieria Środowiska
• Rocznik: 2014
• Tom: z. 68
• Strony: 73--92
• Opis fizyczny: Bibliogr. 33 poz., tab.

Twórcy

autor

Miłobędzka, A.

• Zakład Biologii, Wydział Inżynierii Środowiska PW,

autor

Muszyński, A.

• Zakład Biologii, Wydział Inżynierii Środowiska PW

Bibliografia

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