Microbial Biotechnology最新文献

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Will tomorrow's mineral materials be grown? 未来的矿物材料会被种植吗?
IF 5.7 2区 生物学
Microbial Biotechnology Pub Date : 2023-07-31 DOI: 10.1111/1751-7915.14298
Julie Cosmidis
{"title":"Will tomorrow's mineral materials be grown?","authors":"Julie Cosmidis","doi":"10.1111/1751-7915.14298","DOIUrl":"https://doi.org/10.1111/1751-7915.14298","url":null,"abstract":"<p>Biomineralization, the capacity to form minerals, has evolved in a great diversity of bacterial lineages as an adaptation to different environmental conditions and biological functions. Microbial biominerals often display original properties (morphology, composition, structure, association with organics) that significantly differ from those of abiotically formed counterparts, altogether defining the ‘mineral phenotype’. In principle, it should be possible to take advantage of microbial biomineralization processes to design and biomanufacture advanced mineral materials for a range of technological applications. In practice, this has rarely been done so far and only for a very limited number of biomineral types. This is mainly due to our poor understanding of the underlying molecular mechanisms controlling microbial biomineralization pathways, preventing us from developing bioengineering strategies aiming at improving biomineral properties for different applications. Another important challenge is the difficulty to upscale microbial biomineralization from the lab to industrial production. Addressing these challenges will require combining expertise from environmental microbiologists and geomicrobiologists, who have historically been working at the forefront of research on microbe–mineral interactions, alongside bioengineers and material scientists. Such interdisciplinary efforts may in the future allow the emergence of a mineral biomanufacturing industry, a critical tool towards the development more sustainable and circular bioeconomies.</p>","PeriodicalId":49145,"journal":{"name":"Microbial Biotechnology","volume":"16 9","pages":"1713-1722"},"PeriodicalIF":5.7,"publicationDate":"2023-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ami-journals.onlinelibrary.wiley.com/doi/epdf/10.1111/1751-7915.14298","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"5878596","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: 0
Web alert: Two-phase biocatalysis 网络警告:两相生物催化
IF 5.7 2区 生物学
Microbial Biotechnology Pub Date : 2023-07-24 DOI: 10.1111/1751-7915.14314
Lawrence P. Wackett
{"title":"Web alert: Two-phase biocatalysis","authors":"Lawrence P. Wackett","doi":"10.1111/1751-7915.14314","DOIUrl":"https://doi.org/10.1111/1751-7915.14314","url":null,"abstract":"<p>Microfluidic droplets</p><p>\u0000 https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8616014/\u0000 </p><p>This review article covers two-phase biocatalysis in microfluidic droplets. This often serves to overcome mass transport issues that can limit enzyme catalysis with water-insoluble compounds.</p><p>Two-step organic synthesis biocatalysis</p><p>\u0000 https://pubs.acs.org/doi/10.1021/acs.oprd.6b00232\u0000 </p><p>This study used whole-cell catalysts in a microaqueous phase within organic solvents to catalyse multiple enzymatic steps for making a pharmaceutical intermediate.</p><p>Flow biocatalysis</p><p>\u0000 https://www.frontiersin.org/articles/10.3389/fctls.2023.1154452/full\u0000 </p><p>This review covered new developments in flow biocatalysis during the years of 2020–2022.</p><p>Encapsulated <i>Pseudomonas</i> biotransformation</p><p>\u0000 https://microbialcellfactories.biomedcentral.com/articles/10.1186/s12934-023-02073-7\u0000 </p><p>In this report, the authors describe optimization of (S)-2-hydroxypropiophenone synthesis by free and encapsulated cells of <i>P. putida</i>.</p><p>Biocatalysis methods</p><p>\u0000 https://www.nature.com/articles/s43586-021-00044-z\u0000 </p><p>This is a broad and extensive review of biocatalysis that includes many aspects for using enzymes to synthesis commercial chemicals.</p><p>Pickering emulsions with yeast enzyme</p><p>\u0000 https://pubs.acs.org/doi/10.1021/acssuschemeng.6b01776\u0000 </p><p>This article describes the use of a small amount of solid particle emulsifier to make a Pickering emulsion system to catalyse reactions with <i>Candida antarctica</i> lipase B.</p><p>Pharma biocatalysis</p><p>\u0000 https://www.almacgroup.com/knowledge/wp-content/uploads/sites/10/2021/01/API_Practical-Methods-for-Biocatalysis-and-Biotransformations-2_Article-2.pdf\u0000 </p><p>This review chapter focuses on company-based biocatalysis projects.</p><p>Microbial biocatalysis</p><p>\u0000 https://www.mdpi.com/journal/catalysts/special_issues/microbes_biocatal\u0000 </p><p>This links to a special issue of the journal “Catalysts” that includes examples of two-phase microbial and enzyme biocatalysis.</p><p>Diene epoxidation by a <i>Pseudomonas</i></p><p>\u0000 https://www.sciencedirect.com/science/article/abs/pii/0141022986900761\u0000 </p><p>This article highlights the production of 7,8-epoxy-1-octene by non-growing <i>Pseudomonas putida</i> PpG6 in two-phase catalytic reaction.</p>","PeriodicalId":49145,"journal":{"name":"Microbial Biotechnology","volume":"16 8","pages":"1702"},"PeriodicalIF":5.7,"publicationDate":"2023-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/1751-7915.14314","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"5803629","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: 0
Leveraging nature to advance data storage: DNA as a storage medium 利用自然来推进数据存储:DNA作为存储介质
IF 5.7 2区 生物学
Microbial Biotechnology Pub Date : 2023-06-10 DOI: 10.1111/1751-7915.14291
Kaleb Z. Abram, Zulema Udaondo
{"title":"Leveraging nature to advance data storage: DNA as a storage medium","authors":"Kaleb Z. Abram,&nbsp;Zulema Udaondo","doi":"10.1111/1751-7915.14291","DOIUrl":"https://doi.org/10.1111/1751-7915.14291","url":null,"abstract":"<p>Schematic overview of DNA data storage.\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":49145,"journal":{"name":"Microbial Biotechnology","volume":"16 9","pages":"1709-1712"},"PeriodicalIF":5.7,"publicationDate":"2023-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ami-journals.onlinelibrary.wiley.com/doi/epdf/10.1111/1751-7915.14291","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"5795095","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: 1
Climate change is not just global warming: Multidimensional impacts on animal gut microbiota 气候变化不仅仅是全球变暖:对动物肠道微生物群的多重影响
IF 5.7 2区 生物学
Microbial Biotechnology Pub Date : 2023-05-29 DOI: 10.1111/1751-7915.14276
Claire E. Williams, Candace L. Williams, Michael L. Logan
{"title":"Climate change is not just global warming: Multidimensional impacts on animal gut microbiota","authors":"Claire E. Williams,&nbsp;Candace L. Williams,&nbsp;Michael L. Logan","doi":"10.1111/1751-7915.14276","DOIUrl":"https://doi.org/10.1111/1751-7915.14276","url":null,"abstract":"<p>Climate change has rapidly altered many ecosystems, with detrimental effects for biodiversity across the globe. In recent years, it has become increasingly apparent that the microorganisms that live in and on animals can substantially affect host health and physiology, and the structure and function of these microbial communities can be highly sensitive to environmental variables. To date, most studies have focused on the effects of increasing mean temperature on gut microbiota, yet other aspects of climate are also shifting, including temperature variation, seasonal dynamics, precipitation and the frequency of severe weather events. This array of environmental pressures might interact in complex and non-intuitive ways to impact gut microbiota and consequently alter animal fitness. Therefore, understanding the impacts of climate change on animals requires a consideration of multiple types of environmental stressors and their interactive effects on gut microbiota. Here, we present an overview of some of the major findings in research on climatic effects on microbial communities in the animal gut. Although ample evidence has now accumulated that shifts in mean temperature can have important effects on gut microbiota and their hosts, much less work has been conducted on the effects of other climatic variables and their interactions. We provide recommendations for additional research needed to mechanistically link climate change with shifts in animal gut microbiota and host fitness.</p>","PeriodicalId":49145,"journal":{"name":"Microbial Biotechnology","volume":"16 9","pages":"1736-1744"},"PeriodicalIF":5.7,"publicationDate":"2023-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ami-journals.onlinelibrary.wiley.com/doi/epdf/10.1111/1751-7915.14276","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"5867236","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: 4
Bursts in biosynthetic gene cluster transcription are accompanied by surges of natural compound production in the myxobacterium Sorangium sp. 在粘杆菌Sorangium sp.中,生物合成基因簇转录的爆发伴随着天然化合物生产的激增。
IF 5.7 2区 生物学
Microbial Biotechnology Pub Date : 2023-03-30 DOI: 10.1111/1751-7915.14246
Judith Boldt, Laima Luko?evi?iūt?, Chengzhang Fu, Matthias Steglich, Boyke Bunk, Vera Junker, Aileen Gollasch, Birte Trunkwalter, Kathrin I. Mohr, Michael Beckstette, Joachim Wink, J?rg Overmann, Rolf Müller, Ulrich Nübel
{"title":"Bursts in biosynthetic gene cluster transcription are accompanied by surges of natural compound production in the myxobacterium Sorangium sp.","authors":"Judith Boldt,&nbsp;Laima Luko?evi?iūt?,&nbsp;Chengzhang Fu,&nbsp;Matthias Steglich,&nbsp;Boyke Bunk,&nbsp;Vera Junker,&nbsp;Aileen Gollasch,&nbsp;Birte Trunkwalter,&nbsp;Kathrin I. Mohr,&nbsp;Michael Beckstette,&nbsp;Joachim Wink,&nbsp;J?rg Overmann,&nbsp;Rolf Müller,&nbsp;Ulrich Nübel","doi":"10.1111/1751-7915.14246","DOIUrl":"https://doi.org/10.1111/1751-7915.14246","url":null,"abstract":"<p>A better understanding of the genetic regulation of the biosynthesis of microbial compounds could accelerate the discovery of new biologically active molecules and facilitate their production. To this end, we have investigated the time course of genome-wide transcription in the myxobacterium <i>Sorangium</i> sp. So ce836 in relation to its production of natural compounds. Time-resolved RNA sequencing revealed that core biosynthesis genes from 48 biosynthetic gene clusters (BGCs; 92% of all BGCs encoded in the genome) were actively transcribed at specific time points in a batch culture. The majority (80%) of polyketide synthase and non-ribosomal peptide synthetase genes displayed distinct peaks of transcription during exponential bacterial growth. Strikingly, these bursts in BGC transcriptional activity were associated with surges in the net production rates of known natural compounds, indicating that their biosynthesis was critically regulated at the transcriptional level. In contrast, BGC read counts from single time points had limited predictive value about biosynthetic activity, since transcription levels varied &gt;100-fold among BGCs with detected natural products. Taken together, our time-course data provide unique insights into the dynamics of natural compound biosynthesis and its regulation in a wild-type myxobacterium, challenging the commonly cited notion of preferential BGC expression under nutrient-limited conditions. The close association observed between BGC transcription and compound production warrants additional efforts to develop genetic engineering tools for boosting compound yields from myxobacterial producer strains.</p>","PeriodicalId":49145,"journal":{"name":"Microbial Biotechnology","volume":"16 5","pages":"1054-1068"},"PeriodicalIF":5.7,"publicationDate":"2023-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ami-journals.onlinelibrary.wiley.com/doi/epdf/10.1111/1751-7915.14246","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"5787176","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: 1
Revealing the role of the rhizosphere microbiota in reproductive growth for fruit productivity when inorganic fertilizer is partially replaced by organic fertilizer in pear orchard fields 揭示了部分有机肥替代无机肥对梨园根际微生物群在生殖生长和果实生产力中的作用
IF 5.7 2区 生物学
Microbial Biotechnology Pub Date : 2023-03-25 DOI: 10.1111/1751-7915.14253
Chun-Hui Shi, Xiao-Qing Wang, Shuang Jiang, Li-Qing Zhang, Jun Luo
{"title":"Revealing the role of the rhizosphere microbiota in reproductive growth for fruit productivity when inorganic fertilizer is partially replaced by organic fertilizer in pear orchard fields","authors":"Chun-Hui Shi,&nbsp;Xiao-Qing Wang,&nbsp;Shuang Jiang,&nbsp;Li-Qing Zhang,&nbsp;Jun Luo","doi":"10.1111/1751-7915.14253","DOIUrl":"https://doi.org/10.1111/1751-7915.14253","url":null,"abstract":"<p>In order to address the global crisis in pear productivity, there has been increased attention given to advocating for the use of organic fertilizers. As part of this effort, researchers have been investigating the microbial properties of organic fertilizers to better understand their potential impact on fruit productivity. Our research focused specifically on the impact of four different ratios of sheep manure (SM) and chemical fertilizers (CF) on pear productivity. We found that replacing CF with SM resulted in a proliferation of gammaproteobacteria, Chlamydiae, Bastocatellia and Clostridia in the soil rhizosphere, which is the region around the roots of plants where most nutrient uptake occurs. Using redundancy analysis, we were able to determine that SM was particularly effective at promoting the growth of gammaproteobacteria and clostridia, which were associated with C:N ratios around 14:1 as well as the availability of K, Fe, Zn and Cu. This combination of factors was conducive to a transition from vegetative growth to reproductive growth, resulting in an increase in pear production from 43 to 56 tons per hectare. We also discovered that Blastociella acts as a buffering system in regulating soil acidity. Taken together, our findings indicate that a combination of SM and CF can improve the abundance of beneficial bacteria in the rhizosphere, leading to an increase in pear productivity.</p>","PeriodicalId":49145,"journal":{"name":"Microbial Biotechnology","volume":"16 6","pages":"1373-1392"},"PeriodicalIF":5.7,"publicationDate":"2023-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/1751-7915.14253","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"5821803","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: 4
Web alert: Microbes in drug delivery 网络警告:药物输送中的微生物
IF 5.7 2区 生物学
Microbial Biotechnology Pub Date : 2023-03-23 DOI: 10.1111/1751-7915.14251
Lawrence P. Wackett*
{"title":"Web alert: Microbes in drug delivery","authors":"Lawrence P. Wackett*","doi":"10.1111/1751-7915.14251","DOIUrl":"https://doi.org/10.1111/1751-7915.14251","url":null,"abstract":"<p>Microbe-based drug delivery.</p><p>\u0000 https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6895346/\u0000 </p><p>This review targets microbe-based drug delivery with the goal of providing site-specific medical benefits to patients.</p><p>Synthetic microbes as drug delivery systems.</p><p>\u0000 https://pubs.acs.org/doi/10.1021/sb500258b\u0000 </p><p>This article examines potential developments in medicine for using microbes to diagnose disease, produce therapeutics in situ, and deliver medicines.</p><p>Microbial-fabricated nano-systems.</p><p>\u0000 https://www.frontiersin.org/articles/10.3389/fchem.2021.617353/full\u0000 </p><p>This is a broad treatment on the formulations of microbes with metals, polysaccharides, and other agents for making nano-scale delivery agents.</p><p>Modes of therapeutic delivery.</p><p>\u0000 https://www.cell.com/trends/microbiology/fulltext/S0966-842X(22)00249-9\u0000 </p><p>This review discusses bacterial therapeutics and vaccines, with a focus on those moving into clinical trials.</p><p>Bacteria and anti-cancer drugs.</p><p>\u0000 https://www.sciencedirect.com/science/article/pii/S0168365920303849\u0000 </p><p>This review article highlights the use of bacteria or bacterial derivatives as drug carriers for cancer therapy.</p><p>Bacterial drug delivery IP.</p><p>\u0000 https://www.wipo.int/wipo_magazine/en/2014/04/article_0002.html\u0000 </p><p>This interesting article in the World International Patent Organization (WIPO) magazine discusses a microbial drug patented for the treatment of gastrointestinal disorders.</p><p>Bacterial lysing systems in cancer therapy.</p><p>\u0000 https://www.nature.com/articles/s41467-021-26367-9\u0000 </p><p>This article deals with the use of a <i>Salmonella</i>-derived delivery system to induce lysis and release proteins specifically into tumour cells.</p><p>Bacteria and medical implants.</p><p>\u0000 https://www.mdpi.com/2079-4983/13/4/173\u0000 </p><p>This deals with bacterially responsive drug delivery for the release of antibacterial compounds at the site of implants to mitigate against infections.</p><p>Anti-microbial peptide delivery.</p><p>\u0000 https://agris.fao.org/agris-search/search.do?recordID=US202000140612\u0000 </p><p>Nano-scale drug delivery systems are being investigated for the delivery of bacterially produced toxins called bacteriocins.</p>","PeriodicalId":49145,"journal":{"name":"Microbial Biotechnology","volume":"16 4","pages":"868"},"PeriodicalIF":5.7,"publicationDate":"2023-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/1751-7915.14251","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"5767513","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: 0
Weaponising microbes for peace 为和平把微生物变成武器
IF 5.7 2区 生物学
Microbial Biotechnology Pub Date : 2023-03-07 DOI: 10.1111/1751-7915.14224
Shailly Anand, John E. Hallsworth, James Timmis, Willy Verstraete, Arturo Casadevall, Juan Luis Ramos, Utkarsh Sood, Roshan Kumar, Princy Hira, Charu Dogra?Rawat, Abhilash Kumar, Sukanya Lal, Rup Lal, Kenneth Timmis
{"title":"Weaponising microbes for peace","authors":"Shailly Anand,&nbsp;John E. Hallsworth,&nbsp;James Timmis,&nbsp;Willy Verstraete,&nbsp;Arturo Casadevall,&nbsp;Juan Luis Ramos,&nbsp;Utkarsh Sood,&nbsp;Roshan Kumar,&nbsp;Princy Hira,&nbsp;Charu Dogra?Rawat,&nbsp;Abhilash Kumar,&nbsp;Sukanya Lal,&nbsp;Rup Lal,&nbsp;Kenneth Timmis","doi":"10.1111/1751-7915.14224","DOIUrl":"https://doi.org/10.1111/1751-7915.14224","url":null,"abstract":"<p>There is much human disadvantage and unmet need in the world, including deficits in basic resources and services considered to be human rights, such as drinking water, sanitation and hygiene, healthy nutrition, access to basic healthcare, and a clean environment. Furthermore, there are substantive asymmetries in the distribution of key resources among peoples. These deficits and asymmetries can lead to local and regional crises among peoples competing for limited resources, which, in turn, can become sources of discontent and conflict. Such conflicts have the potential to escalate into regional wars and even lead to global instability. Ergo: in addition to moral and ethical imperatives to level up, to ensure that all peoples have basic resources and services essential for healthy living and to reduce inequalities, all nations have a self-interest to pursue with determination all available avenues to promote peace through reducing sources of conflicts in the world. Microorganisms and pertinent microbial technologies have unique and exceptional abilities to provide, or contribute to the provision of, basic resources and services that are lacking in many parts of the world, and thereby address key deficits that might constitute sources of conflict. However, the deployment of such technologies to this end is seriously underexploited. Here, we highlight some of the key available and emerging technologies that demand greater consideration and exploitation in endeavours to eliminate unnecessary deprivations, enable healthy lives of all and remove preventable grounds for competition over limited resources that can escalate into conflicts in the world. We exhort central actors: microbiologists, funding agencies and philanthropic organisations, politicians worldwide and international governmental and non-governmental organisations, to engage – in full partnership – with all relevant stakeholders, to ‘weaponise’ microbes and microbial technologies to fight resource deficits and asymmetries, in particular among the most vulnerable populations, and thereby create humanitarian conditions more conducive to harmony and peace.</p>","PeriodicalId":49145,"journal":{"name":"Microbial Biotechnology","volume":"16 6","pages":"1091-1111"},"PeriodicalIF":5.7,"publicationDate":"2023-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/1751-7915.14224","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"5749539","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: 7
Rewiring the respiratory pathway of Lactococcus lactis to enhance extracellular electron transfer 重组乳酸乳球菌的呼吸通路以增强细胞外电子转移
IF 5.7 2区 生物学
Microbial Biotechnology Pub Date : 2023-03-01 DOI: 10.1111/1751-7915.14229
Liuyan Gu, Xinxin Xiao, Ge Zhao, Paul Kempen, Shuangqing Zhao, Jianming Liu, Sang Yup Lee, Christian Solem
{"title":"Rewiring the respiratory pathway of Lactococcus lactis to enhance extracellular electron transfer","authors":"Liuyan Gu,&nbsp;Xinxin Xiao,&nbsp;Ge Zhao,&nbsp;Paul Kempen,&nbsp;Shuangqing Zhao,&nbsp;Jianming Liu,&nbsp;Sang Yup Lee,&nbsp;Christian Solem","doi":"10.1111/1751-7915.14229","DOIUrl":"https://doi.org/10.1111/1751-7915.14229","url":null,"abstract":"<p><i>Lactococcus lactis</i>, a lactic acid bacterium with a typical fermentative metabolism, can also use oxygen as an extracellular electron acceptor. Here we demonstrate, for the first time, that <i>L. lactis</i> blocked in NAD<sup>+</sup> regeneration can use the alternative electron acceptor ferricyanide to support growth. By electrochemical analysis and characterization of strains carrying mutations in the respiratory chain, we pinpoint the essential role of the NADH dehydrogenase and 2-amino-3-carboxy-1,4-naphtoquinone in extracellular electron transfer (EET) and uncover the underlying pathway systematically. Ferricyanide respiration has unexpected effects on <i>L. lactis</i>, e.g., we find that morphology is altered from the normal coccoid to a more rod shaped appearance, and that acid resistance is increased. Using adaptive laboratory evolution (ALE), we successfully enhance the capacity for EET. Whole-genome sequencing reveals the underlying reason for the observed enhanced EET capacity to be a late-stage blocking of menaquinone biosynthesis. The perspectives of the study are numerous, especially within food fermentation and microbiome engineering, where EET can help relieve oxidative stress, promote growth of oxygen sensitive microorganisms and play critical roles in shaping microbial communities.</p>","PeriodicalId":49145,"journal":{"name":"Microbial Biotechnology","volume":"16 6","pages":"1277-1292"},"PeriodicalIF":5.7,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ami-journals.onlinelibrary.wiley.com/doi/epdf/10.1111/1751-7915.14229","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"5654341","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
Saccharomyces cerevisiae responds similarly to co-culture or to a fraction enriched in Metschnikowia pulcherrima extracellular vesicles 酿酒酵母菌对共培养或对细胞外囊泡中富集的部分有类似的反应
IF 5.7 2区 生物学
Microbial Biotechnology Pub Date : 2023-02-25 DOI: 10.1111/1751-7915.14240
Miguel Mejias-Ortiz, Ana Mencher, Pilar Morales, Jordi Tronchoni, Ramon Gonzalez
{"title":"Saccharomyces cerevisiae responds similarly to co-culture or to a fraction enriched in Metschnikowia pulcherrima extracellular vesicles","authors":"Miguel Mejias-Ortiz,&nbsp;Ana Mencher,&nbsp;Pilar Morales,&nbsp;Jordi Tronchoni,&nbsp;Ramon Gonzalez","doi":"10.1111/1751-7915.14240","DOIUrl":"https://doi.org/10.1111/1751-7915.14240","url":null,"abstract":"<p>The recent introduction of non-conventional yeast species as companion wine starters has prompted a growing interest in microbial interactions during wine fermentation. There is evidence of interactions through interference and exploitation competition, as well as interactions depending on physical contact. Furthermore, the results of some transcriptomic analyses suggest interspecific communication, but the molecules or biological structures involved in recognition are not well understood. In this work, we explored extracellular vesicles (EVs) as possible mediators of interspecific communication between wine yeasts. The transcriptomic response of <i>Saccharomyces cerevisiae</i> after 3 h of contact with a fraction enriched in EVs of <i>Metschnikowia pulcherrima</i> was compared with that induced by active <i>M</i>. <i>pulcherrima</i> cells. Interestingly, there is a high level of overlap between the transcriptomic profiles of yeast cells challenged by either <i>M</i>. <i>pulcherrima</i> whole cells or the EV-enriched fraction. The results indicate an upregulation of yeast metabolism in response to competing species (in line with previous results). This finding points to the presence of a signal, in the EV-enriched fraction, that can be perceived by the yeast cells as a cue for the presence of competitors, even in the absence of metabolically active cells of the other species.</p>","PeriodicalId":49145,"journal":{"name":"Microbial Biotechnology","volume":"16 5","pages":"1027-1040"},"PeriodicalIF":5.7,"publicationDate":"2023-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ami-journals.onlinelibrary.wiley.com/doi/epdf/10.1111/1751-7915.14240","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"6034369","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: 0
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