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Titolo:
INFLUENCE OF FLOW ON ORDERING CHARACTERISTICS OF A BACTERIAL BIOFILM
Autore:
RAO TS; KESAVAMOORTHY R; RAO CB; NAIR KVK;
Indirizzi:
INDIRA GANDHI CTR ATOM RES,WATER & STEAM CHEM LAB KALPAKKAM 603102 TAMIL NADU INDIA INDIRA GANDHI CTR ATOM RES,DIV SCI MAT KALPAKKAM 603102 TAMIL NADU INDIA INDIRA GANDHI CTR ATOM RES,DIV PIE & NDT KALPAKKAM 603102 TAMIL NADU INDIA
Titolo Testata:
Current Science
fascicolo: 1, volume: 73, anno: 1997,
pagine: 69 - 74
SICI:
0011-3891(1997)73:1<69:IOFOOC>2.0.ZU;2-O
Fonte:
ISI
Lingua:
ENG
Soggetto:
HYDRODYNAMIC BOUNDARY-LAYERS; PSEUDOMONAS-FLUORESCENS; SURFACE MICROENVIRONMENTS; BEHAVIOR; KINETICS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
23
Recensione:
Indirizzi per estratti:
Citazione:
T.S. Rao et al., "INFLUENCE OF FLOW ON ORDERING CHARACTERISTICS OF A BACTERIAL BIOFILM", Current Science, 73(1), 1997, pp. 69-74

Abstract

Freshwater Pseudomonas biofilms were grown on glass plates in a biofilm reactor under various flow rates, Distribution of bacterial orientation angle and interbacterial separation distance were presented, The alignment characteristics of bacteria in the microcolony grown in static water extended over a few cells only, When the flow rate was increased gradually, the local orientational order developed into a general order, However, at the edges of the microcolony, only local order existed, On further increasing the flow rate, general order got disrupted and showed persistent local alignment of cells, The general order is understood to be induced by the shear caused by the flow, At all flow rates studied, the microcolony exhibited unique interbacterial separation distance distribution, This interbacterial separation distance was too large to be explained by the DLVO potential, The non-applicabilityof this potential to bacteria might be due to the specific forces arising from the exopolymeric structures secreted by the Pseudomonas bacterium.

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Documento generato il 27/09/20 alle ore 00:56:21