New spatially explicit method for detecting extracellular protease activity in biofilms.

Abstract:

:A novel method of detecting extracellular protease activity at biofilm-substratum interfaces was developed. This method utilizes fluorescent molecules bound to cellulose substrata with a lectin. Extracellular proteases degrade the lectin and release the fluorochrome into solution. This new technique and a standard dissolved-substrate assay detected similar responses of biofilm extracellular protease activity to experimental manipulation of N supply. Combination of this technique with confocal scanning laser microscopy allowed direct visualization of microspatial patterns of bacterial distribution and extracellular protease activity at the biofilm-substratum interface.

journal_name

Appl Environ Microbiol

authors

Francoeur SN,Wetzel RG,Neely RK

doi

10.1128/aem.67.9.4329-4334.2001

keywords:

subject

Has Abstract

pub_date

2001-09-01 00:00:00

pages

4329-34

issue

9

eissn

0099-2240

issn

1098-5336

journal_volume

67

pub_type

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