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Extracellular Matrix (ECM)

Authors: Helm R.F.; Potts M.;

Extracellular Matrix (ECM)

Abstract

The region of space at the periphery of cyanobacterial cells is the interface between the environment and intracellular processes. This metaspace may include a structure appressed to the outer wall and membrane, such as an extracellular polysaccharide (EPS), a structural and/or physiological discontinuity in the control of flow metabolites, as well as a temporal flux that accompanies stress or cell division. The functional framework within this region is designed to recognize environmental perturbations and relay physical and biochemical information to the cell interior, and perhaps to the cell community, for the appropriate physiological response. Communication between the environment and the cells is thus initiated within this extracellular milieu, which is therefore an important spatial domain in the cyanobacteria. The ECM of cyanobacterial cells is multifaceted. It is not only a complex and dynamic mixture of polysaccharides, proteins, cell remnants and lower molecular weight secondary metabolites, but a hyperspace that tunes seasonal as well as short-term stochastic modulations in environmental conditions. Such stresses result in changes in both the composition and organization of the matrix as cyanobacterial cells adjust to the environmental perturbations. This chapter provides a critical appraisal of the ecology and evolution of the cyanobacterial ECM compared with other prokaryotes. Emphasis is placed on how little is understood about this “occupied space” and several hypotheses and examples are presented in an effort to promote additional investigations of this oft-ignored interface.

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Extracellular matrix

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citations
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
33
Top 10%
Top 10%
Top 10%
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