Open AccessGradients and consequences of heterogeneity in biofilms
Author(s) -
Jeanyoung Jo,
Alexa Price-Whelan,
Lars E. P. Dietrich
Publication year - 2022
Publication title -
nature reviews. microbiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 11.496
H-Index - 300
eISSN - 1740-1534
pISSN - 1740-1526
DOI - 10.1038/s41579-022-00692-2
Subject(s) - multicellular organism , biology , biofilm , ecology , ecosystem , resource (disambiguation) , popularity , resistance (ecology) , microbial ecology , evolutionary biology , bacteria , genetics , cell , psychology , computer network , social psychology , computer science
Historically, appreciation for the roles of resource gradients in biology has fluctuated inversely to the popularity of genetic mechanisms. Nevertheless, in microbiology specifically, widespread recognition of the multicellular lifestyle has recently brought new emphasis to the importance of resource gradients. Most microorganisms grow in assemblages such as biofilms or spatially constrained communities with gradients that influence, and are influenced by, metabolism. In this Review, we discuss examples of gradient formation and physiological differentiation in microbial assemblages growing in diverse settings. We highlight consequences of physiological heterogeneity in microbial assemblages, including division of labour and increased resistance to stress. Our impressions of microbial behaviour in various ecosystems are not complete without complementary maps of the chemical and physical geographies that influence cellular activities. A holistic view, incorporating these geographies and the genetically encoded functions that operate within them, will be essential for understanding microbial assemblages in their many roles and potential applications.