Abstract：
:Phenotypically heterogeneous microenvironments emerge as biofilms mature across different environments. Phenotypic heterogeneity in biofilm sub-populations not obeying quorum sensing-dictated, collective group behavior may be considered as a strategy allowing non-conformists to survive hostile conditions. Heterogeneous phenotype development has been amply studied with respect to gene expression and genotypic changes, but 'biofilm genes' responsible for preprogrammed development of heterogeneous microenvironments in biofilms have never been discovered. Moreover, the question of what triggers the development of phenotypically heterogeneous microenvironments has never been addressed. The definition of biofilms as 'surface-adhering and surface-adapted' microbial communities contains the word 'surface' twice. This leads us to hypothesize that phenotypically heterogeneous microenvironments in biofilms develop as an adaptive response of initial colonizers to their adhering state, governed by the forces through which they adhere to a substratum surface. No surface is entirely homogeneous, while adhering bacteria can substantially contribute to stochastically occurring surface heterogeneity. Accordingly, bacterial adhesion forces sensed by initial colonizers differ across a substratum surface, leading to differential mechanical deformation of the cell wall and membrane, where many environmental sensors are located. Bacteria directly adhering to heterogeneous substratum domains therewith formulate their own local responses to their adhering state and command non-conformist behavior, leading to phenotypically heterogeneous microenvironments in biofilms.
journal_name
FEMS Microbiol Revjournal_title
FEMS microbiology reviewsauthors
Ren Y,Wang C,Chen Z,Allan E,van der Mei HC,Busscher HJdoi
10.1093/femsre/fuy001subject
Has Abstractpub_date
2018-05-01 00:00:00pages
259-272issue
3eissn
0168-6445issn
1574-6976pii
4794942journal_volume
42pub_type
杂志文章,评审abstract：:More than a century ago, the term 'virus' was introduced to describe infectious agents that are invisible by light microscopy and capable of passing through sterilizing filters. In addition to their extremely small size, most viruses have minimal genomes and gene contents, and rely almost entirely on host cell-encoded...
journal_title：FEMS microbiology reviews
pub_type： 杂志文章,评审
doi：10.1093/femsre/fuv037
更新日期：2015-11-01 00:00:00
abstract：:For many years, the bacterial cells were regarded as tiny vessels lacking internal organization. This view, which stemmed from the scarcity of membrane-bounded organelles, has changed considerably in recent years, mainly due to advancements in imaging capabilities. Consequently, despite the rareness of conventional or...
journal_title：FEMS microbiology reviews
pub_type： 杂志文章,评审
doi：10.1111/j.1574-6976.2012.00348.x
更新日期：2012-09-01 00:00:00
abstract：:Wall teichoic acids (WTAs) are charged glycopolymers containing phosphodiester-linked polyol units and represent one of the major components of Gram-positive cell envelope. WTAs have important physiological functions in cell division, gene transfer, surface adhesion, drug resistance, and biofilm formation, and are cri...
journal_title：FEMS microbiology reviews
pub_type： 杂志文章
doi：10.1093/femsre/fuaa064
更新日期：2020-12-03 00:00:00
abstract：:Gene regB of bacteriophage T4 encodes a sequence-specific endoribonuclease which introduces cuts in early phage messenger RNAs. In most cases, cutting takes place in the middle of the tetranucleotide GGAG. Efficient cleavages occur in the motifs located in intergenic regions, some of them being Shine-Dalgarno sequence...
journal_title：FEMS microbiology reviews
pub_type： 杂志文章,评审
doi：10.1111/j.1574-6976.1995.tb00196.x
更新日期：1995-08-01 00:00:00
abstract：:The genus Corynebacterium belongs to the taxonomic class Actinobacteria representing the high G+C branch of gram-positive bacteria. Among the most prominent members of this genus is Corynebacterium glutamicum, which is used by the biotechnological industry for the fermentative production of l-amino acids. Because of i...
journal_title：FEMS microbiology reviews
pub_type： 杂志文章,评审
doi：10.1111/j.1574-6976.2010.00228.x
更新日期：2010-09-01 00:00:00
abstract：:Antibiotic resistance mechanisms reported in Gram-negative bacteria are causing a worldwide health problem. The continuous dissemination of 'multidrug-resistant' (MDR) bacteria drastically reduces the efficacy of our antibiotic 'arsenal' and consequently increases the frequency of therapeutic failure. In MDR bacteria,...
journal_title：FEMS microbiology reviews
pub_type： 杂志文章,评审
doi：10.1111/j.1574-6976.2011.00290.x
更新日期：2012-03-01 00:00:00
abstract：:The wealth of information existing on the general principle of S-layers has revealed a broad application potential. The most relevant features exploited in applied S-layer research are: (i) pores passing through S-layers show identical size and morphology and are in the range of ultrafiltration membranes; (ii) functio...
journal_title：FEMS microbiology reviews
pub_type： 杂志文章,评审
doi：10.1111/j.1574-6976.1997.tb00306.x
更新日期：1997-06-01 00:00:00
abstract：:This review concerns the issues involved in the industrial development of fed-batch culture processes with Saccharomyces cerevisiae strains producing heterologous proteins. Most of process development considerations with fed-batch recombinant cultures are linked to the reliability and reproducibility of the process fo...
journal_title：FEMS microbiology reviews
pub_type： 杂志文章,评审
doi：10.1111/j.1574-6976.1994.tb00146.x
更新日期：1994-12-01 00:00:00
abstract：:Methanogens form a very large and diverse group of microorganisms within the domain of the Archaea. Energy for their growth is obtained by the reduction of a variety of substrates into methane. Several genes, coding for enzymes involved in methanogenesis or in the central metabolism have been cloned and studied. The m...
journal_title：FEMS microbiology reviews
pub_type： 杂志文章,评审
doi：10.1111/j.1574-6976.1994.tb00138.x
更新日期：1994-10-01 00:00:00
abstract：:Invasive bacterial pathogens intervene at various stages and by various mechanisms with the mammalian plasminogen/plasmin system. A vast number of pathogens express plasmin(ogen) receptors that immobilize plasmin(ogen) on the bacterial surface, an event that enhances activation of plasminogen by mammalian plasminogen ...
journal_title：FEMS microbiology reviews
pub_type： 杂志文章,评审
doi：10.1111/j.1574-6976.2001.tb00590.x
更新日期：2001-12-01 00:00:00
abstract：:Many fungi produce exocellular beta-glucan-degrading enzymes, the beta-glucanases including the noncellulolytic beta-(1,3)- and beta-(1,6)-glucanases, degrading beta-(1,3)- and beta-(1,6)-glucans. An ability to purify several exocellular beta-glucanases attacking the same linkage type from a single fungus is common, a...
journal_title：FEMS microbiology reviews
pub_type： 杂志文章
doi：10.1111/j.1574-6976.2006.00055.x
更新日期：2007-03-01 00:00:00
abstract：:Magnetotactic bacteria (MB) are remarkable organisms with the ability to exploit the earth's magnetic field for navigational purposes. To do this, they build specialized compartments called magnetosomes that consist of a lipid membrane and a crystalline magnetic mineral. These organisms have the potential to serve as ...
journal_title：FEMS microbiology reviews
pub_type： 杂志文章,评审
doi：10.1111/j.1574-6976.2011.00315.x
更新日期：2012-01-01 00:00:00
abstract：:The increasing numbers of characterized base-pairing small RNAs (sRNAs) and the identification of these regulators in a broad range of bacteria are allowing comparisons between species and explorations of sRNA evolution. In this review, we describe some examples of trans-encoded base-pairing sRNAs that are species-spe...
journal_title：FEMS microbiology reviews
pub_type： 杂志文章,评审
doi：10.1093/femsre/fuv014
更新日期：2015-05-01 00:00:00
abstract：:Targeted manipulation of the gut flora is increasingly being recognized as a means to improve human health. Yet, the temporal dynamics and intra- and interindividual heterogeneity of the microbiome represent experimental limitations, especially in human cross-sectional studies. Therefore, rodent models represent an in...
journal_title：FEMS microbiology reviews
pub_type： 杂志文章,评审
doi：10.1093/femsre/fuv036
更新日期：2016-01-01 00:00:00
abstract：:The yeast Saccharomyces cerevisiae has been a favorite organism for pioneering studies on nutrient-sensing and signaling mechanisms. Many specific nutrient responses have been elucidated in great detail. This has led to important new concepts and insight into nutrient-controlled cellular regulation. Major highlights i...
journal_title：FEMS microbiology reviews
pub_type： 杂志文章,评审
doi：10.1111/1574-6976.12065
更新日期：2014-03-01 00:00:00
abstract：:Host-adapted strains of Salmonella enterica cause systemic infections and have the ability to persist systemically for long periods of time and pose significant public-health problems. Multidrug-resistant S. enterica serovar Typhi (S. Typhi) and nontyphoidal Salmonella (NTS) are on the increase and are often associate...
journal_title：FEMS microbiology reviews
pub_type： 杂志文章,评审
doi：10.1111/j.1574-6976.2012.00332.x
更新日期：2012-05-01 00:00:00
abstract：:Lack of known mechanisms of protection against Staphylococcus aureus in humans is hindering development of efficacious vaccines. Preclinical as well as clinical data suggest that antibodies play an important role against S. aureus. For instance, certain hypogammaglobulinaemic patients are at increased risk of staphylo...
journal_title：FEMS microbiology reviews
pub_type： 杂志文章,评审
doi：10.1093/femsre/fuv024
更新日期：2015-09-01 00:00:00
abstract：:The herbivore rumen ecosystem constitutes an extremely efficient degradation machinery for the intricate chemical structure of fiber biomass, thus, enabling the hosting animal to digest its feed. The challenging task of deconstructing and metabolizing fiber is performed by microorganisms inhabiting the rumen. Since mo...
journal_title：FEMS microbiology reviews
pub_type： 杂志文章,评审
doi：10.1093/femsre/fuz007
更新日期：2019-07-01 00:00:00
abstract：:Small regulatory RNAs have been identified in a wide range of organisms, where they modify mRNA stability, translation or protein function. Small RNA regulators (sRNAs) either pair with mRNA targets or modify protein activities. Here we discuss current knowledge of the various proteins that interact with RNA regulator...
journal_title：FEMS microbiology reviews
pub_type： 杂志文章,评审
doi：10.1111/j.1574-6976.2007.00079.x
更新日期：2007-09-01 00:00:00
abstract：:Metals are required cofactors for numerous fundamental processes that are essential to both pathogen and host. They are coordinated in enzymes responsible for DNA replication and transcription, relief from oxidative stress, and cellular respiration. However, excess transition metals can be toxic due to their ability t...
journal_title：FEMS microbiology reviews
pub_type： 杂志文章,评审
doi：10.1111/1574-6976.12087
更新日期：2014-11-01 00:00:00
abstract：:Antibiotic resistance can be acquired by mutation or horizontal transfer of a resistance gene, and generally an acquired mechanism results in a predictable increase in phenotypic resistance. However, recent findings suggest that the environment and/or the genetic context can modify the phenotypic expression of specifi...
journal_title：FEMS microbiology reviews
pub_type： 杂志文章,评审
doi：10.1093/femsre/fux004
更新日期：2017-05-01 00:00:00
abstract：:Gram-positive bacteria have developed elaborate mechanisms to control ammonium assimilation, at the levels of both transcription and enzyme activity. In this review, the common and specific mechanisms of nitrogen assimilation and regulation in Gram-positive bacteria are summarized and compared for the genera Bacillus,...
journal_title：FEMS microbiology reviews
pub_type： 杂志文章,评审
doi：10.1111/j.1574-6976.2010.00216.x
更新日期：2010-07-01 00:00:00
abstract：:Pathogenicity and symbiosis are central to bacteria-host interactions. Although several human pathogens have been subjected to functional genomic analysis, we still understand little about bacteria-invertebrate interactions despite their ecological prevalence. Advances in our knowledge of this area are often hindered ...
journal_title：FEMS microbiology reviews
pub_type： 杂志文章,评审
doi：10.1111/j.1574-6976.2003.tb00625.x
更新日期：2003-01-01 00:00:00
abstract：:Based on structural, biochemical, and genetic data, the soluble diiron monooxygenases can be divided into four groups: the soluble methane monooxygenases, the Amo alkene monooxygenase of Rhodococcus corallinus B-276, the phenol hydroxylases, and the four-component alkene/aromatic monooxygenases. The limited phylogenet...
journal_title：FEMS microbiology reviews
pub_type： 杂志文章,评审
doi：10.1016/S0168-6445(03)00023-8
更新日期：2003-10-01 00:00:00
abstract：:The gram-negative bacterium Proteus mirabilis can exist in either of two cell types, a vegetative cell characterized as a short rod and a highly elongated and hyperflagellated swarmer cell. This differentiation is triggered by growth on solid surfaces and multiple inputs are sensed by the cell to initiate the differen...
journal_title：FEMS microbiology reviews
pub_type： 杂志文章,评审
doi：10.1111/j.1574-6976.2010.00229.x
更新日期：2010-09-01 00:00:00
abstract：:The head assembly pathway of bacteriophage HK97 shares many features with head assembly pathways determined for other dsDNA phages, and it also provides examples of novel variations on the basic theme. We describe aspects of two specific steps in the assembly pathway, the covalent cross-linking among the assembled hea...
journal_title：FEMS microbiology reviews
pub_type： 杂志文章,评审
doi：10.1111/j.1574-6976.1995.tb00186.x
更新日期：1995-08-01 00:00:00
abstract：:Cyanobacteria of the genera Synechococcus and Prochlorococcus dominate the prokaryotic component of the picophytoplankton in the oceans. It is still less than 10 years since the discovery of phages that infect marine Synechococcus and the beginning of the characterisation of these phages and assessment of their ecolog...
journal_title：FEMS microbiology reviews
pub_type： 杂志文章,评审
doi：10.1016/S0168-6445(03)00016-0
更新日期：2003-04-01 00:00:00
abstract：:Thioredoxin is a small (Mr 12,000) ubiquitous redox protein with the conserved active site structure: -Trp-Cys-Gly-Pro-Cys-. The oxidized form (Trx-S2) contains a disulfide bridge which is reduced by NADPH and thioredoxin reductase; the reduced form [Trx(SH)2] is a powerful protein disulfide oxidoreductase. Thioredoxi...
journal_title：FEMS microbiology reviews
pub_type： 杂志文章,评审
doi：10.1111/j.1574-6968.1988.tb02747.x
更新日期：1988-12-01 00:00:00
abstract：:The peroxisomal membrane compartmentalizes specific metabolic functions in the intermediary metabolism of various aerobic eukarya. In yeast, peroxisomal membranes are typified by their small width (+/- 7-8 nm) and absence of large integral membrane proteins in freeze-etch replicas. They show a unique polypeptide profi...
journal_title：FEMS microbiology reviews
pub_type： 杂志文章,评审
doi：10.1111/j.1574-6976.1993.tb00002.x
更新日期：1993-08-01 00:00:00
abstract：:Formate is a substrate, or product, of diverse reactions catalyzed by eukaryotic organisms, eubacteria, and archaebacteria. A survey of metabolic groups reveals that formate is a common growth substrate, especially among the anaerobic eubacteria and archaebacteria. Formate also functions as an accessory reductant for ...
journal_title：FEMS microbiology reviews
pub_type： 杂志文章,评审
doi：10.1111/j.1574-6968.1990.tb04940.x
更新日期：1990-12-01 00:00:00
