{"refrec":{"BRefID":352997,"RR":"<b>Géron, A.; Werner, J.; Lebaron, P.; Wattiez, R.; Matallana-Surget, S.</b> (2021). Diel protein regulation of marine picoplanktonic communities assessed by metaproteomics. <i>Microorganisms 9(12)</i>: 2621. <a href=\"https://dx.doi.org/10.3390/microorganisms9122621\" target=\"_blank\">https://dx.doi.org/10.3390/microorganisms9122621</a>","BEntID":350706,"PublicFlag":1,"CheckedFlag":1,"wosflag":1,"vabbflag":0,"RefStringPartII":". <i>Microorganisms 9(12)</i>: 2621. <a href=\"https://dx.doi.org/10.3390/microorganisms9122621\" target=\"_blank\">https://dx.doi.org/10.3390/microorganisms9122621</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Géron, A.; Werner, J.; Lebaron, P.; Wattiez, R.; Matallana-Surget, S.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Géron, A. <i>et al.</i>","Englishabstract":"The diel cycle is of enormous biological importance in that it imposes temporal structure on ecosystem productivity. In the world’s oceans, microorganisms form complex communities that carry out about half of photosynthesis and the bulk of life-sustaining nutrient cycling. How the functioning of microbial communities is impacted by day and night periods in surface seawater remains to be elucidated. In this study, we compared the day and night metaproteomes of the free-living and the particle-attached bacterial fractions from picoplanktonic communities sampled from the northwest Mediterranean Sea surface. Our results showed similar taxonomic distribution of free-living and particle-attached bacterial populations, with <i>Alphaproteobacteria</i>, <i>Gammaproteobacteria</i> and <i>Cyanobacteria</i> being the most active members. Comparison of the day and night metaproteomes revealed that free-living and particle-attached bacteria were more active during the day and the night, respectively. Interestingly, protein diel variations were observed in the photoautotroph <i>Synechococcales</i> and in (photo)-heterotrophic bacteria such as <i>Flavobacteriales, Pelagibacterales</i> and <i>Rhodobacterales</i>. Moreover, our data demonstrated that diel cycle impacts light-dependent processes such as photosynthesis and UV-stress response in <i>Synechococcales</i> and <i>Rhodobacterales</i>, respectively, while the protein regulation from the ubiquitous <i>Pelagibacterales</i> remained stable over time. This study unravels, for the first time, the diel variation in the protein expression of major free-living and particle-attached microbial players at the sea surface, totaling an analysis of eight metaproteomes.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Diel protein regulation of marine picoplanktonic communities assessed by metaproteomics","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2024-12-10 01:33:17.368041","timezone_type":1,"timezone":"+01:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":"diel cycle; picoplankton; microbial communities; metaproteomics","OtherDescriptors":null,"Notes":null,"AnaPub":2021,"MonPub":null,"DateUpdate":"2022-06-27","DateCreate":"2022-06-23","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000735903400001","VABBcode":null,"OpenAcc":1,"DOI":"10.3390/microorganisms9122621"},"refs":null,"anarec":{"AnaID":352997,"PubliDate":2021,"Pagination":"2621","XtraPublOfAnaID":null,"ISBN":null,"Volume":"9","Issue":"12","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":302866,"SerRR":"Microorganisms. 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