Advances in applied microbiology最新文献_第10页

The microbiology of red brines. 红盐水的微生物学。

2区生物学

Advances in applied microbiology Pub Date : 2020-01-01 Epub Date: 2020-08-17 DOI: 10.1016/bs.aambs.2020.07.003

Aharon Oren

{"title":"The microbiology of red brines.","authors":"Aharon Oren","doi":"10.1016/bs.aambs.2020.07.003","DOIUrl":"https://doi.org/10.1016/bs.aambs.2020.07.003","url":null,"abstract":"The brines of natural salt lakes with total salt concentrations exceeding 30% are often colored red by dense communities of halophilic microorganisms. Such red brines are found in the north arm of Great Salt Lake, Utah, in the alkaline hypersaline lakes of the African Rift Valley, and in the crystallizer ponds of coastal and inland salterns where salt is produced by evaporation of seawater or some other source of saline water. Red blooms were also reported in the Dead Sea in the past. Different types of pigmented microorganisms may contribute to the coloration of the brines. The most important are the halophilic archaea of the class Halobacteria that contain bacterioruberin carotenoids as well as bacteriorhodopsin and other retinal pigments, β-carotene-rich species of the unicellular green algal genus Dunaliella and bacteria of the genus Salinibacter (class Rhodothermia) that contain the carotenoid salinixanthin and the retinal protein xanthorhodopsin. Densities of prokaryotes in red brines often exceed 2-3×107 cells/mL. I here review the information on the biota of the red brines, the interactions between the organisms present, as well as the possible roles of the red halophilic microorganisms in the salt production process and some applied aspects of carotenoids and retinal proteins produced by the different types of halophiles inhabiting the red brines.","PeriodicalId":7298,"journal":{"name":"Advances in applied microbiology","volume":"113 ","pages":"57-110"},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/bs.aambs.2020.07.003","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"38395053","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: 20

Copyright 版权

2区生物学

Advances in applied microbiology Pub Date : 2020-01-01 DOI: 10.1016/s0065-2164(20)30033-2

引用次数: 0

Evasion of host defenses by intracellular Staphylococcus aureus. 细胞内金黄色葡萄球菌逃避宿主防御。

2区生物学

Advances in applied microbiology Pub Date : 2020-01-01 Epub Date: 2020-05-27 DOI: 10.1016/bs.aambs.2020.05.001

Kate E Watkins, Meera Unnikrishnan

{"title":"Evasion of host defenses by intracellular Staphylococcus aureus.","authors":"Kate E Watkins, Meera Unnikrishnan","doi":"10.1016/bs.aambs.2020.05.001","DOIUrl":"https://doi.org/10.1016/bs.aambs.2020.05.001","url":null,"abstract":"Staphylococcus aureus is one of the leading causes of hospital and community-acquired infections worldwide. The increasing occurrence of antibiotic resistant strains and the high rates of recurrent staphylococcal infections have placed several treatment challenges on healthcare systems. In recent years, it has become evident that S. aureus is a facultative intracellular pathogen, able to invade and survive in a range of cell types. The ability to survive intracellularly provides this pathogen with yet another way to evade antibiotics and immune responses during infection. Intracellular S. aureus have been strongly linked to several recurrent infections, including severe bone infections and septicemias. S. aureus is armed with an array of virulence factors as well as an intricate network of regulators that enable it to survive, replicate and escape from a number of immune and nonimmune host cells. It is able to successfully manipulate host cell pathways and use it as a niche to multiply, disseminate, as well as persist during an infection. This bacterium is also known to adapt to the intracellular environment by forming small colony variants, which are metabolically inactive. In this review we will discuss the clinical evidence, the molecular pathways involved in S. aureus intracellular persistence, and new treatment strategies for targeting intracellular S. aureus.","PeriodicalId":7298,"journal":{"name":"Advances in applied microbiology","volume":"112 ","pages":"105-141"},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/bs.aambs.2020.05.001","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"38246550","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: 24

Glutathione: A powerful but rare cofactor among Actinobacteria. 谷胱甘肽:放线菌中一种强大但罕见的辅助因子。

2区生物学

Advances in applied microbiology Pub Date : 2020-01-01 Epub Date: 2019-12-27 DOI: 10.1016/bs.aambs.2019.12.003

Anna C Lienkamp, Thomas Heine, Dirk Tischler

引用次数: 11

Copyright 版权

2区生物学

Advances in applied microbiology Pub Date : 2020-01-01 DOI: 10.1016/s0065-2164(20)30014-9

引用次数: 0

Copyright 版权

2区生物学

Advances in applied microbiology Pub Date : 2020-01-01 DOI: 10.1016/s0065-2164(20)30056-3

引用次数: 0

The versatility of Pseudomonas putida in the rhizosphere environment. 恶臭假单胞菌在根际环境中的多功能性。

2区生物学

Advances in applied microbiology Pub Date : 2020-01-01 Epub Date: 2019-12-28 DOI: 10.1016/bs.aambs.2019.12.002

Lázaro Molina, Ana Segura, Estrella Duque, Juan-Luis Ramos

引用次数: 9

Degradation strategies and associated regulatory mechanisms/features for aromatic compound metabolism in bacteria. 芳香族化合物在细菌体内代谢的降解策略及其调控机制/特征。

2区生物学

Advances in applied microbiology Pub Date : 2020-01-01 Epub Date: 2020-03-25 DOI: 10.1016/bs.aambs.2020.02.002

Prashant S Phale, Harshit Malhotra, Bhavik A Shah

{"title":"Degradation strategies and associated regulatory mechanisms/features for aromatic compound metabolism in bacteria.","authors":"Prashant S Phale, Harshit Malhotra, Bhavik A Shah","doi":"10.1016/bs.aambs.2020.02.002","DOIUrl":"https://doi.org/10.1016/bs.aambs.2020.02.002","url":null,"abstract":"As a result of anthropogenic activity, large number of recalcitrant aromatic compounds have been released into the environment. Consequently, microbial communities have adapted and evolved to utilize these compounds as sole carbon source, under both aerobic and anaerobic conditions. The constitutive expression of enzymes necessary for metabolism imposes a heavy energy load on the microbe which is overcome by arrangement of degradative genes as operons which are induced by specific inducers. The segmentation of pathways into upper, middle and/or lower operons has allowed microbes to funnel multiple compounds into common key aromatic intermediates which are further metabolized through central carbon pathway. Various proteins belonging to diverse families have evolved to regulate the transcription of individual operons participating in aromatic catabolism. These proteins, complemented with global regulatory mechanisms, carry out the regulation of aromatic compound metabolic pathways in a concerted manner. Additionally, characteristics like chemotaxis, preferential utilization, pathway compartmentalization and biosurfactant production confer an advantage to the microbe, thus making bioremediation of the aromatic pollutants more efficient and effective.","PeriodicalId":7298,"journal":{"name":"Advances in applied microbiology","volume":"112 ","pages":"1-65"},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/bs.aambs.2020.02.002","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"38246549","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: 21

Antimicrobial resistance genes in bacteria from animal-based foods. 动物性食物中细菌的抗微生物抗性基因。

2区生物学

Advances in applied microbiology Pub Date : 2020-01-01 Epub Date: 2020-05-23 DOI: 10.1016/bs.aambs.2020.03.001

Isadora de Alcântara Rodrigues, Rafaela Gomes Ferrari, Pedro Henrique Nunes Panzenhagen, Sergio Borges Mano, Carlos Adam Conte-Junior

引用次数: 17

Predetermined clockwork microbial worlds: Current understanding of aquatic microbial diel response from model systems to complex environments. 预先确定的发条微生物世界:从模型系统到复杂环境的水生微生物死亡反应的当前理解。

2区生物学

Advances in applied microbiology Pub Date : 2020-01-01 Epub Date: 2020-06-29 DOI: 10.1016/bs.aambs.2020.06.001

Daichi Morimoto, Sigitas Šulčius, Kento Tominaga, Takashi Yoshida

{"title":"Predetermined clockwork microbial worlds: Current understanding of aquatic microbial diel response from model systems to complex environments.","authors":"Daichi Morimoto, Sigitas Šulčius, Kento Tominaga, Takashi Yoshida","doi":"10.1016/bs.aambs.2020.06.001","DOIUrl":"https://doi.org/10.1016/bs.aambs.2020.06.001","url":null,"abstract":"In the photic zone of aquatic ecosystems, microorganisms with different metabolisms and their viruses form complex interactions and food webs. Within these interactions, phototrophic microorganisms such as eukaryotic microalgae and cyanobacteria interact directly with sunlight, and thereby generate circadian rhythms. Diel cycling originally generated in microbial phototrophs is directly transmitted toward heterotrophic microorganisms utilizing the photosynthetic products as they are excreted or exuded. Such diel cycling seems to be indirectly propagated toward heterotrophs as a result of complex biotic interactions. For example, cell death of phototrophic microorganisms induced by viral lysis and protistan grazing provides additional resources of dissolved organic matter to the microbial community, and so generates diel cycling in other heterotrophs with different nutrient dependencies. Likewise, differences in the diel transmitting pathway via complex interactions among heterotrophs, and between heterotrophs and their viruses, may also generate higher variation and time lag diel rhythms in different heterotrophic taxa. Thus, sunlight and photosynthesis not only contribute energy and carbon supply, but also directly or indirectly control diel cycling of the microbial community through complex interactions in the photic zone of aquatic ecosystems.","PeriodicalId":7298,"journal":{"name":"Advances in applied microbiology","volume":"113 ","pages":"163-191"},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/bs.aambs.2020.06.001","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"38395052","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: 2