Abstract:
:Bacterial shape has always been hypothesized to play an important role in the biology of a species and in the ability of certain bacteria to influence human health. The recent discovery of peptidoglycan hydrolases that modulate shape has now allowed this hypothesis to be addressed directly. Genetic, biochemical, and phenotypic studies have found that changes in shape and underlying peptidoglycan structure influence many pathogenic attributes including surviving unfavorable conditions, predation, transmission, colonization, and host interactions. The diversity of bacterial shapes, niches, and lifestyles is also reflected in diverse mechanisms of hydrolase regulation, critical for maintaining peptidoglycan integrity and biological properties of the cell. Future studies will build on the current work described and further elucidate the intersection of peptidoglycan hydrolase activity, shape, and disease outcome.
journal_name
Curr Opin Microbioljournal_title
Current opinion in microbiologyauthors
Frirdich E,Gaynor ECdoi
10.1016/j.mib.2013.09.005subject
Has Abstractpub_date
2013-12-01 00:00:00pages
767-78issue
6eissn
1369-5274issn
1879-0364pii
S1369-5274(13)00156-2journal_volume
16pub_type
杂志文章,评审abstract::Since their discovery, our understanding of NK cells has evolved from branding them marginal innate immunity cells to key players in anti-viral and anti-tumor immunity. Importance of NK cells in control of various viral infections is perhaps best illustrated by the existence of plethora of viral mechanisms aimed to mo...
journal_title:Current opinion in microbiology
pub_type: 杂志文章,评审
doi:10.1016/j.mib.2010.05.011
更新日期:2010-08-01 00:00:00
abstract::The recent discovery of binding protein dependent secondary transporters and the ever-growing family of membrane potential generating secondary transporters emphasize the diversity of transport systems in both the mechanistical and physiological sense. The vast amount of data on the lactose permease is now beginning t...
journal_title:Current opinion in microbiology
pub_type: 杂志文章,评审
doi:10.1016/s1369-5274(98)80018-0
更新日期:1998-04-01 00:00:00
abstract::Leishmania parasites are able to delay the onset of cell-mediated immunity by selectively impairing the ability of infected macrophages to produce interleukin (IL)-12. Leishmania infection arrests the JAK/STAT-mediated signal transduction involved in activation of the IL-12 p40 promoter; the phosphorylation defects ma...
journal_title:Current opinion in microbiology
pub_type: 杂志文章,评审
doi:10.1016/S1369-5274(99)80077-0
更新日期:1999-08-01 00:00:00
abstract::Ustilago maydis is a well-established model system for biotrophic fungal plant pathogens. The fungus has a dimorphic life cycle with a yeast-like saprophytic phase switching to filamentous, pathogenic growth upon hyphal fusion. Due to its highly differentiated development and the amenability for reverse-genetics U. ma...
journal_title:Current opinion in microbiology
pub_type: 杂志文章,评审
doi:10.1016/j.mib.2016.07.020
更新日期:2016-12-01 00:00:00
abstract::Molecular phylogenetic studies reveal that many endosymbioses between bacteria and invertebrate hosts result from ancient infections followed by strict vertical transmission within host lineages. Endosymbionts display a distinctive constellation of genetic properties including AT-biased base composition, accelerated s...
journal_title:Current opinion in microbiology
pub_type: 杂志文章,评审
doi:10.1016/s1369-5274(00)00088-6
更新日期:2000-06-01 00:00:00
abstract::Recent work on cell division and chromosome orientation and partitioning in Bacillus subtilis has provided insights into cell cycle regulation during growth and development. The cell cycle is an integral part of development and entrance into sporulation is modulated by signals that transmit the status of DNA integrity...
journal_title:Current opinion in microbiology
pub_type: 杂志文章,评审
doi:10.1016/s1369-5274(98)80107-0
更新日期:1998-12-01 00:00:00
abstract::Secretion systems play a central role in infectious diseases by enabling pathogenic bacteria to deliver virulence factors into target cells. The type VI secretion system (T6SS) mediates bacterial antagonism in various environments including eukaryotic niches, such as the gut. This molecular machine injects lethal toxi...
journal_title:Current opinion in microbiology
pub_type: 杂志文章,评审
doi:10.1016/j.mib.2015.11.006
更新日期:2016-02-01 00:00:00
abstract::Candida albicans is a regular member of the intestinal microbiota in the majority of the human population. This underscores C. albicans' adaptation to life in the intestine without inducing competitive interactions with other microbes, or immune responses detrimental to its survival. However, specific conditions such ...
journal_title:Current opinion in microbiology
pub_type: 杂志文章,评审
doi:10.1016/j.mib.2020.05.006
更新日期:2020-08-01 00:00:00
abstract::Several species of Archaea are involved in symbiotic or parasitic associations with representatives of Eukarya, Bacteria and other Archaea. Eukaryal interactions include different members of methanogens, found in the gut of arthropods, in the rumen of cattle, and in the human intestine, while Cenarchaeum symbiosum is ...
journal_title:Current opinion in microbiology
pub_type: 杂志文章,评审
doi:10.1016/j.mib.2011.04.016
更新日期:2011-06-01 00:00:00
abstract::Nucleoid proteins are a group of abundant DNA binding proteins that modulate the structure of the bacterial chromosome. They have been recruited as specific negative and positive regulators of gene transcription and their fluctuating patterns of expression are often exploited to impart an additional level of control w...
journal_title:Current opinion in microbiology
pub_type: 杂志文章
doi:10.1016/s1369-5274(00)00181-8
更新日期:2001-04-01 00:00:00
abstract::The genomic revolution is fully upon us in 2006 and the pace of discovery is set to accelerate with the emergence of ultra-high-throughput sequencing technologies. Our complete genome collection of bacteria and archaea continues to grow in number and diversity, as genome sequencing is applied to an array of new proble...
journal_title:Current opinion in microbiology
pub_type: 杂志文章,评审
doi:10.1016/j.mib.2006.08.008
更新日期:2006-10-01 00:00:00
abstract::We have now complete genome sequences of several pairs of closely related prokaryotes (conspecific strains or congeneric species). Surprisingly, even strains of the same species can differ by as much as 20% in gene content. Conceptual and methodological approaches for dealing with such diversity are now being develope...
journal_title:Current opinion in microbiology
pub_type: 杂志文章,评审
doi:10.1016/s1369-5274(00)00204-6
更新日期:2001-06-01 00:00:00
abstract::Wild Escherichia coli are superbly adapted to survive in the intestines of their mammalian hosts and in the environment. E. coli K12 derivative (MG1655) encodes 4288 potential genes that provide the background genetic framework of this species. Particular E. coli clonal types encode additional chromosomal and extrachr...
journal_title:Current opinion in microbiology
pub_type: 杂志文章,评审
doi:10.1016/s1369-5274(00)00170-3
更新日期:2001-02-01 00:00:00
abstract::Motile bacteria seek optimal living habitats by following gradients of attractant and repellent chemicals in their environment. The signaling machinery for these chemotactic behaviors, although assembled from just a few protein components, has extraordinary information-processing capabilities. Escherichia coli, the be...
journal_title:Current opinion in microbiology
pub_type: 杂志文章,评审
doi:10.1016/j.mib.2005.02.008
更新日期:2005-04-01 00:00:00
abstract::Much of what we know about cytokinesis in bacteria has come from studies with Escherichia coli, and efforts to comprehensively understand this fundamental process in this organism continue to intensify. Major recent advances include in vitro assembly of a membrane-tethered version of FtsZ into contractile rings in lip...
journal_title:Current opinion in microbiology
pub_type: 杂志文章,评审
doi:10.1016/j.mib.2010.09.015
更新日期:2010-12-01 00:00:00
abstract::Germ line encoded antiviral defenses in vertebrate cells tend to be either broadly acting factors that exploit general features of viral replication or effectors with strong pathogen preference by virtue of specific recognition of viral proteins. The Mx GTPases, however, are atypical since they have broad antiviral ac...
journal_title:Current opinion in microbiology
pub_type: 杂志文章,评审
doi:10.1016/j.mib.2013.04.005
更新日期:2013-08-01 00:00:00
abstract::Photodynamic therapy (PDT) uses photosensitizers (non-toxic dyes) that are activated by absorption of visible light to form reactive oxygen species (including singlet oxygen) that can oxidize biomolecules and destroy cells. Antimicrobial photodynamic inactivation (aPDI) can treat localized infections. aPDI neither cau...
journal_title:Current opinion in microbiology
pub_type: 杂志文章,评审
doi:10.1016/j.mib.2016.06.008
更新日期:2016-10-01 00:00:00
abstract::Extracytoplasmic function σ factors (ECFs) represent a fundamental and widely distributed principle of bacterial signal transduction that connects the perception of a stimulus (input) with the induction of an appropriate set of genes (output). In recent years, comparative genomics analyses have not only allowed a syst...
journal_title:Current opinion in microbiology
pub_type: 杂志文章,评审
doi:10.1016/j.mib.2013.02.001
更新日期:2013-04-01 00:00:00
abstract::Major advances have been made in the past five years in the identification of cellular targets of toxins produced by anaerobic bacteria. These targets include the vesicular membrane docking and fusion apparatus, the actin cytoskeleton, the signal transduction machinery and the cell membrane. The recent discovery that ...
journal_title:Current opinion in microbiology
pub_type: 杂志文章,评审
doi:10.1016/s1369-5274(98)80144-6
更新日期:1998-02-01 00:00:00
abstract::Following concerns over the potential for insect resistance to insecticidal Bacillus thuringiensis toxins expressed in transgenic plants, there has been recent interest in novel biological insecticides. Over the past year there has been considerable progress in the cloning of several alternative toxin genes from the b...
journal_title:Current opinion in microbiology
pub_type: 杂志文章,评审
doi:10.1016/s1369-5274(99)80049-6
更新日期:1999-06-01 00:00:00
abstract::There has been a dramatic increase in the number of completely sequenced bacterial genomes during the past two years as a result of the efforts both of public genome agencies and the pharmaceutical industry. The availability of completely sequenced genomes permits more systematic analyses of genes, evolution and genom...
journal_title:Current opinion in microbiology
pub_type: 杂志文章,评审
doi:10.1016/s1369-5274(98)80039-8
更新日期:1998-06-01 00:00:00
abstract::Protozoan pathogens have evolved countermeasures to avoid immune clearance and prolong the period of infection in their vertebrate hosts. The type and degree of immune escape strategies depends on the in vivo 'lifestyle' the pathogen has adopted. Here we describe how parasites use different strategies to coordinate th...
journal_title:Current opinion in microbiology
pub_type: 杂志文章,评审
doi:10.1016/j.mib.2007.10.003
更新日期:2007-12-01 00:00:00
abstract::Dictyostelium genome sequencing predicts an unexpectedly large number of genes. Many are absent from yeast but present in animals and presumably support cellular abilities not found in yeast. Prominent amongst these abilities is chemotaxis, where great strides are being made in understanding how cells orient in a grad...
journal_title:Current opinion in microbiology
pub_type: 杂志文章,评审
doi:10.1016/s1369-5274(02)00375-2
更新日期:2002-12-01 00:00:00
abstract::Mycobacterium tuberculosis (Mtb) is highly immunogenic and appears to have evolved to preserve its antigenicity. The retention of antigenicity is important to the maintenance of a robust immune response that contributes greatly to the late-stage tissue damage required for transmission and completion of the pathogen's ...
journal_title:Current opinion in microbiology
pub_type: 杂志文章,评审
doi:10.1016/j.mib.2012.11.007
更新日期:2013-02-01 00:00:00
abstract::The historical paradigm of the deep ocean as a biological 'desert' has shifted to one of a 'rainforest' owing to the isolation of many novel microbes and their associated bioactive compounds. Recently, there has been an explosion of information about novel bioactive compounds that have been isolated from marine microb...
journal_title:Current opinion in microbiology
pub_type: 杂志文章,评审
doi:10.1016/j.mib.2005.04.008
更新日期:2005-06-01 00:00:00
abstract::Natural prokaryotic populations are composed of multiple clonal lineages that are different in their core genomes in a range that varies typically between 95 and 100% nucleotide identity. Each clonal lineage also carries a complement of not shared flexible genes that can be very large. The compounded flexible genome p...
journal_title:Current opinion in microbiology
pub_type: 杂志文章,评审
doi:10.1016/j.mib.2016.03.014
更新日期:2016-06-01 00:00:00
abstract::DNA translocases play important roles during the bacterial cell cycle and in cell differentiation. Escherichia coli cells contain a multifunctional translocase, FtsK, which is involved in cell division, late steps of chromosome segregation and dimer resolution. In Gram-positive bacteria, the latter two processes are a...
journal_title:Current opinion in microbiology
pub_type: 杂志文章,评审
doi:10.1016/j.mib.2011.10.004
更新日期:2011-12-01 00:00:00
abstract::Organisms do not exist isolated from each other, but constantly interact. Cells can sense the presence of interaction partners by a range of receptors and, via complex regulatory networks, specifically react by changing the expression of many of their genes. Technological advances in next-generation sequencing over th...
journal_title:Current opinion in microbiology
pub_type: 杂志文章,评审
doi:10.1016/j.mib.2017.09.001
更新日期:2018-04-01 00:00:00
abstract::Clustered, regularly interspaced, short, palindromic repeats (CRISPR) loci, together with their CRISPR-associated (Cas) proteins, provide bacteria and archaea with adaptive immunity against invasion by bacteriophages, plasmids, and other mobile genetic elements. These host defenses impart selective pressure on phages ...
journal_title:Current opinion in microbiology
pub_type: 杂志文章,评审
doi:10.1016/j.mib.2017.06.003
更新日期:2017-06-01 00:00:00
abstract::Biological nitrogen fixation is a much more important process in the nitrogen cycle of the oceans than previously thought. Further, nitrogen fixation may have an influence on the capacity of the oceans to sequester carbon. A greater diversity of marine nitrogen fixers has also been uncovered but their quantitative sig...
journal_title:Current opinion in microbiology
pub_type: 杂志文章
doi:10.1016/s1369-5274(00)00215-0
更新日期:2001-06-01 00:00:00