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Curr Opin Microbiol. 2013 Dec;16(6):760-6. doi: 10.1016/j.mib.2013.08.005. Epub 2013 Sep 12.

The role of hydrolases in bacterial cell-wall growth.

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1
Department of Bioengineering, Stanford University, Stanford, CA, USA.

Abstract

Although hydrolysis is known to be as important as synthesis in the growth and development of the bacterial cell wall, the coupling between these processes is not well understood. Bond cleavage can generate deleterious pores, but may also be required for the incorporation of new material and for the expansion of the wall, highlighting the importance of mechanical forces in interpreting the consequences of hydrolysis in models of growth. Critically, minimal essential subsets of hydrolases have now been identified in several model organisms, enabling the reduction of genetic complexity. Recent studies in Bacillus subtilis have provided evidence for both the presence and absence of coupling between synthesis and hydrolysis during sporulation and elongation, respectively. In this review, we discuss strategies for dissecting the relationship between synthesis and hydrolysis using time-lapse imaging, biophysical measurements of cell-wall architecture, and computational modeling.

PMID:
24035761
PMCID:
PMC3986426
DOI:
10.1016/j.mib.2013.08.005
[Indexed for MEDLINE]
Free PMC Article
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