Advances in Microbial Physiology最新文献_第3页

Metabolic potential of anaerobic methane oxidizing archaea for a broad spectrum of electron acceptors. 厌氧甲烷氧化古菌对广谱电子受体的代谢潜力。

2区生物学

Advances in Microbial Physiology Pub Date : 2022-01-01 DOI: 10.1016/bs.ampbs.2022.01.003

Martyna Glodowska, Cornelia U Welte, Julia M Kurth

{"title":"Metabolic potential of anaerobic methane oxidizing archaea for a broad spectrum of electron acceptors.","authors":"Martyna Glodowska, Cornelia U Welte, Julia M Kurth","doi":"10.1016/bs.ampbs.2022.01.003","DOIUrl":"https://doi.org/10.1016/bs.ampbs.2022.01.003","url":null,"abstract":"Methane (CH4) is a potent greenhouse gas significantly contributing to the climate warming we are currently facing. Microorganisms play an important role in the global CH4 cycle that is controlled by the balance between anaerobic production via methanogenesis and CH4 removal via methanotrophic oxidation. Research in recent decades advanced our understanding of CH4 oxidation, which until 1976 was believed to be a strictly aerobic process. Anaerobic oxidation of methane (AOM) coupled to sulfate reduction is now known to be an important sink of CH4 in marine ecosystems. Furthermore, in 2006 it was discovered that anaerobic CH4 oxidation can also be coupled to nitrate reduction (N-DAMO), demonstrating that AOM may be much more versatile than previously thought and linked to other electron acceptors. In consequence, an increasing number of studies in recent years showed or suggested that alternative electron acceptors can be used in the AOM process including FeIII, MnIV, AsV, CrVI, SeVI, SbV, VV, and BrV. In addition, humic substances as well as biochar and perchlorate (ClO4-) were suggested to mediate AOM. Anaerobic methanotrophic archaea, the so-called ANME archaea, are key players in the AOM process, yet we are still lacking deeper understanding of their metabolism, electron acceptor preferences and their interaction with other microbial community members. It is still not clear whether ANME archaea can oxidize CH4 and reduce metallic electron acceptors independently or via electron transfer to syntrophic partners, interspecies electron transfer, nanowires or conductive pili. Therefore, the aim of this review is to summarize and discuss the current state of knowledge about ANME archaea, focusing on their physiology, metabolic flexibility and potential to use various electron acceptors.","PeriodicalId":50953,"journal":{"name":"Advances in Microbial Physiology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10612695","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 6

Nickel, an essential virulence determinant of Helicobacter pylori: Transport and trafficking pathways and their targeting by bismuth. 镍，幽门螺杆菌的重要毒力决定因素:运输和贩运途径及其铋的靶向作用。

2区生物学

Advances in Microbial Physiology Pub Date : 2022-01-01 DOI: 10.1016/bs.ampbs.2022.01.001

Sumith Kumar, Daniel Vinella, Hilde De Reuse

{"title":"Nickel, an essential virulence determinant of Helicobacter pylori: Transport and trafficking pathways and their targeting by bismuth.","authors":"Sumith Kumar, Daniel Vinella, Hilde De Reuse","doi":"10.1016/bs.ampbs.2022.01.001","DOIUrl":"https://doi.org/10.1016/bs.ampbs.2022.01.001","url":null,"abstract":"Metal acquisition and intracellular trafficking are crucial for all cells and metal ions have been recognized as virulence determinants in bacterial pathogens. Nickel is required for the pathogenicity of H. pylori. This bacterial pathogen colonizes the stomach of about half of the human population worldwide and is associated with gastric cancer that is responsible for 800,000 deaths per year. H. pylori possesses two nickel-enzymes that are essential for in vivo colonization, a [NiFe] hydrogenase and an abundant urease responsible for resistance to gastric acidity. Because of these two enzymes, survival of H. pylori relies on an important supply of nickel, implying tight control strategies to avoid its toxic accumulation or deprivation. H. pylori possesses original mechanisms for nickel uptake, distribution, storage and trafficking that will be discussed in this review. During evolution, acquisition of nickel transporters and specific nickel-binding proteins has been a decisive event to allow Helicobacter species to become able to colonize the stomach. Accordingly, many of the factors involved in these mechanisms are required for mouse colonization by H. pylori. These mechanisms are controlled at different levels including protein interaction networks, transcriptional, post-transcriptional and post-translational regulation. Bismuth is another metal used in combination with antibiotics to efficiently treat H. pylori infections. Although the precise mode of action of bismuth is unknown, many targets have been identified in H. pylori and there is growing evidence that bismuth interferes with the essential nickel pathways. Understanding the metal pathways will help improve treatments against H. pylori and other pathogens.","PeriodicalId":50953,"journal":{"name":"Advances in Microbial Physiology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10620518","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Preface. 前言。

2区生物学

Advances in Microbial Physiology Pub Date : 2022-01-01 DOI: 10.1016/S0065-2911(22)00027-3

Robert K Poole, Dave J Kelly

引用次数: 0

Copyright 版权

2区生物学

Advances in Microbial Physiology Pub Date : 2021-01-01 DOI: 10.1016/s0065-2911(21)00022-9

引用次数: 0

Evolutionary trade-offs between growth and survival: The delicate balance between reproductive success and longevity in bacteria. 生长与生存之间的进化权衡:细菌繁殖成功与寿命之间的微妙平衡。

2区生物学

Advances in Microbial Physiology Pub Date : 2021-01-01 Epub Date: 2021-08-13 DOI: 10.1016/bs.ampbs.2021.07.002

Florence Abram, Talia Arcari, Duarte Guerreiro, Conor P O'Byrne

{"title":"Evolutionary trade-offs between growth and survival: The delicate balance between reproductive success and longevity in bacteria.","authors":"Florence Abram, Talia Arcari, Duarte Guerreiro, Conor P O'Byrne","doi":"10.1016/bs.ampbs.2021.07.002","DOIUrl":"https://doi.org/10.1016/bs.ampbs.2021.07.002","url":null,"abstract":"All living cells strive to allocate cellular resources in a way that promotes maximal evolutionary fitness. While there are many competing demands for resources the main decision making process centres on whether to proceed with growth and reproduction or to \"hunker down\" and invest in protection and survival (or to strike an optimal balance between these two processes). The transcriptional programme active at any given time largely determines which of these competing processes is dominant. At the top of the regulatory hierarchy are the sigma factors that commandeer the transcriptional machinery and determine which set of promoters are active at any given time. The regulatory inputs controlling their activity are therefore often highly complex, with multiple layers of regulation, allowing relevant environmental information to produce the most beneficial response. The tension between growth and survival is also evident in the developmental programme necessary to promote biofilm formation, which is typically associated with low growth rates and enhanced long-term survival. Nucleotide second messengers and energy pools (ATP/ADP levels) play critical roles in determining the fate of individual cells. Regulatory small RNAs frequently play important roles in the decision making processes too. In this review we discuss the trade-off that exists between reproduction and persistence in bacteria and discuss some of the recent advances in this fascinating field.","PeriodicalId":50953,"journal":{"name":"Advances in Microbial Physiology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39671219","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 6

The Pseudomonas aeruginosa whole genome sequence: A 20th anniversary celebration. 铜绿假单胞菌全基因组序列：20 周年庆典。

2区生物学

Advances in Microbial Physiology Pub Date : 2021-01-01 Epub Date: 2021-11-16 DOI: 10.1016/bs.ampbs.2021.07.001

Fiona S L Brinkman, Geoffrey L Winsor, Rachel E Done, Alain Filloux, Vanessa I Francis, Joanna B Goldberg, E Peter Greenberg, Kook Han, Robert E W Hancock, Cara H Haney, Susanne Häußler, Jens Klockgether, Iain L Lamont, Roger C Levesque, Stephen Lory, Pablo I Nikel, Steven L Porter, Matthew W Scurlock, Herbert P Schweizer, Burkhard Tümmler, Meng Wang, Martin Welch

{"title":"The Pseudomonas aeruginosa whole genome sequence: A 20th anniversary celebration.","authors":"Fiona S L Brinkman, Geoffrey L Winsor, Rachel E Done, Alain Filloux, Vanessa I Francis, Joanna B Goldberg, E Peter Greenberg, Kook Han, Robert E W Hancock, Cara H Haney, Susanne Häußler, Jens Klockgether, Iain L Lamont, Roger C Levesque, Stephen Lory, Pablo I Nikel, Steven L Porter, Matthew W Scurlock, Herbert P Schweizer, Burkhard Tümmler, Meng Wang, Martin Welch","doi":"10.1016/bs.ampbs.2021.07.001","DOIUrl":"10.1016/bs.ampbs.2021.07.001","url":null,"abstract":"Toward the end of August 2000, the 6.3 Mbp whole genome sequence of Pseudomonas aeruginosa strain PAO1 was published. With 5570 open reading frames (ORFs), PAO1 had the largest microbial genome sequenced up to that point in time-including a large proportion of metabolic, transport and antimicrobial resistance genes supporting its ability to colonize diverse environments. A remarkable 9% of its ORFs were predicted to encode proteins with regulatory functions, providing new insight into bacterial network complexity as a function of network size. In this celebratory article, we fast forward 20 years, and examine how access to this resource has transformed our understanding of P. aeruginosa. What follows is more than a simple review or commentary; we have specifically asked some of the leaders in the field to provide personal reflections on how the PAO1 genome sequence, along with the Pseudomonas Community Annotation Project (PseudoCAP) and Pseudomonas Genome Database (pseudomonas.com), have contributed to the many exciting discoveries in this field. In addition to bringing us all up to date with the latest developments, we also ask our contributors to speculate on how the next 20 years of Pseudomonas research might pan out.","PeriodicalId":50953,"journal":{"name":"Advances in Microbial Physiology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9619908","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Bacterial nitric oxide metabolism: Recent insights in rhizobia. 细菌一氧化氮代谢:根瘤菌的最新见解。

2区生物学

Advances in Microbial Physiology Pub Date : 2021-01-01 Epub Date: 2021-06-07 DOI: 10.1016/bs.ampbs.2021.05.001

Ana Salas, Juan J Cabrera, Andrea Jiménez-Leiva, Socorro Mesa, Eulogio J Bedmar, David J Richardson, Andrew J Gates, María J Delgado

{"title":"Bacterial nitric oxide metabolism: Recent insights in rhizobia.","authors":"Ana Salas, Juan J Cabrera, Andrea Jiménez-Leiva, Socorro Mesa, Eulogio J Bedmar, David J Richardson, Andrew J Gates, María J Delgado","doi":"10.1016/bs.ampbs.2021.05.001","DOIUrl":"https://doi.org/10.1016/bs.ampbs.2021.05.001","url":null,"abstract":"Nitric oxide (NO) is a reactive gaseous molecule that has several functions in biological systems depending on its concentration. At low concentrations, NO acts as a signaling molecule, while at high concentrations, it becomes very toxic due to its ability to react with multiple cellular targets. Soil bacteria, commonly known as rhizobia, have the capacity to establish a N2-fixing symbiosis with legumes inducing the formation of nodules in their roots. Several reports have shown NO production in the nodules where this gas acts either as a signaling molecule which regulates gene expression, or as a potent inhibitor of nitrogenase and other plant and bacteria enzymes. A better understanding of the sinks and sources of NO in rhizobia is essential to protect symbiotic nitrogen fixation from nitrosative stress. In nodules, both the plant and the microsymbiont contribute to the production of NO. From the bacterial perspective, the main source of NO reported in rhizobia is the denitrification pathway that varies significantly depending on the species. In addition to denitrification, nitrate assimilation is emerging as a new source of NO in rhizobia. To control NO accumulation in the nodules, in addition to plant haemoglobins, bacteroids also contribute to NO detoxification through the expression of a NorBC-type nitric oxide reductase as well as rhizobial haemoglobins. In the present review, updated knowledge about the NO metabolism in legume-associated endosymbiotic bacteria is summarized.","PeriodicalId":50953,"journal":{"name":"Advances in Microbial Physiology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/bs.ampbs.2021.05.001","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39247771","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 9

Actinobacillus pleuropneumoniae: The molecular determinants of virulence and pathogenesis. 胸膜肺炎放线杆菌:毒力和发病机制的分子决定因素。

2区生物学

Advances in Microbial Physiology Pub Date : 2021-01-01 Epub Date: 2021-01-25 DOI: 10.1016/bs.ampbs.2020.12.001

Nusrat Nahar, Conny Turni, Greg Tram, Patrick J Blackall, John M Atack

{"title":"Actinobacillus pleuropneumoniae: The molecular determinants of virulence and pathogenesis.","authors":"Nusrat Nahar, Conny Turni, Greg Tram, Patrick J Blackall, John M Atack","doi":"10.1016/bs.ampbs.2020.12.001","DOIUrl":"https://doi.org/10.1016/bs.ampbs.2020.12.001","url":null,"abstract":"Actinobacillus pleuropneumoniae, the causative agent of porcine pleuropneumonia, is responsible for high economic losses in swine herds across the globe. Pleuropneumonia is characterized by severe respiratory distress and high mortality. The knowledge about the interaction between bacterium and host within the porcine respiratory tract has improved significantly in recent years. A. pleuropneumoniae expresses multiple virulence factors, which are required for colonization, immune clearance, and tissue damage. Although vaccines are used to protect swine herds against A. pleuropneumoniae infection, they do not offer complete coverage, and often only protect against the serovar, or serovars, used to prepare the vaccine. This review will summarize the role of individual A. pleuropneumoniae virulence factors that are required during key stages of pathogenesis and disease progression, and highlight progress made toward developing effective and broadly protective vaccines against an organism of great importance to global agriculture and food production.","PeriodicalId":50953,"journal":{"name":"Advances in Microbial Physiology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/bs.ampbs.2020.12.001","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39247769","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 8

Extracellular haem utilization by the opportunistic pathogen Pseudomonas aeruginosa and its role in virulence and pathogenesis. 机会致病菌铜绿假单胞菌对细胞外血红素的利用及其在毒力和发病中的作用。

2区生物学

Advances in Microbial Physiology Pub Date : 2021-01-01 Epub Date: 2021-08-13 DOI: 10.1016/bs.ampbs.2021.07.004

Susana Mouriño, Angela Wilks

{"title":"Extracellular haem utilization by the opportunistic pathogen Pseudomonas aeruginosa and its role in virulence and pathogenesis.","authors":"Susana Mouriño, Angela Wilks","doi":"10.1016/bs.ampbs.2021.07.004","DOIUrl":"https://doi.org/10.1016/bs.ampbs.2021.07.004","url":null,"abstract":"Iron is an essential micronutrient for all bacteria but presents a significant challenge given its limited bioavailability. Furthermore, iron's toxicity combined with the need to maintain iron levels within a narrow physiological range requires integrated systems to sense, regulate and transport a variety of iron complexes. Most bacteria encode systems to chelate and transport ferric iron (Fe3+) via siderophore receptor mediated uptake or via cytoplasmic energy dependent transport systems. Pathogenic bacteria have further lowered the barrier to iron acquisition by employing systems to utilize haem as a source of iron. Haem, a lipophilic and toxic molecule, presents a significant challenge for transport into the cell. As such pathogenic bacteria have evolved sophisticated cell surface signaling (CSS) and transport systems to sense and obtain haem from the host. Once internalized haem is cleaved by both oxidative and non-oxidative mechanisms to release iron. Herein we summarize our current understanding of the mechanism of haem sensing, uptake and utilization in Pseudomonas aeruginosa, its role in pathogenesis and virulence, and the potential of these systems as antimicrobial targets.","PeriodicalId":50953,"journal":{"name":"Advances in Microbial Physiology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8928441/pdf/nihms-1784699.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39759742","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

The Wolfe cycle of carbon dioxide reduction to methane revisited and the Ralph Stoner Wolfe legacy at 100 years. 重新审视二氧化碳还原为甲烷的沃尔夫循环，以及拉尔夫·斯通纳·沃尔夫100年的遗产。

2区生物学

Advances in Microbial Physiology Pub Date : 2021-01-01 Epub Date: 2021-10-28 DOI: 10.1016/bs.ampbs.2021.07.003

William E Balch, James G Ferry

引用次数: 0