{"id":5565,"date":"2026-03-18T17:38:25","date_gmt":"2026-03-18T08:38:25","guid":{"rendered":"http:\/\/jcm.brc.riken.jp\/en\/?page_id=5565"},"modified":"2026-03-18T17:38:32","modified_gmt":"2026-03-18T08:38:32","slug":"mn20260319","status":"publish","type":"page","link":"http:\/\/jcm.brc.riken.jp\/en\/mailnews_e\/mn20260319","title":{"rendered":"JCM Mail News (2026.03.19)"},"content":{"rendered":"
\r\n**********************************************************************\r\nRIKEN BioResource Research Center - Japan Collection of Microorganisms\r\n                      JCM Mail News (2026.03.19)\r\n**********************************************************************\r\n\r\nRIKEN BioResource Research Center - Japan Collection of Microorganisms\r\n(JCM) is pleased to update you with the latest information.\r\n\r\n======= Contents =====================================================\r\n- Special topic: A systematic overview of CO2<\/sub>-fixing microorganisms\r\n                 in the JCM collection\r\n- Revision of Distribution Fees for Bioresources in RIKEN BRC\r\n- Newly cataloged strains (2025.12.01 - 2026.02.28)\r\n======================================================================\r\n\r\n+---------------------------------------------------------------------\r\nSpecial topic: A systematic overview of CO2<\/sub>-fixing microorganisms\r\n               in the JCM collection\r\n+---------------------------------------------------------------------\r\nTo deepen our understanding of microorganisms and to utilize them\r\neffectively as biological resources, it is important to integrate\r\ngenome information with cultivation data.\r\n\r\nTo this end, we examined the presence of Calvin\u2013Benson\u2013Bassham (CBB)\r\ncycle\u2013related genes and CO2<\/sub> fixation capabilities among approximately\r\n6,700 genome-sequenced microbial strains maintained in the Japan\r\nCollection of Microorganisms (JCM) [Nishihara A, et al<\/i>. 2026]. Our\r\nanalysis revealed a lack of experimental confirmation of the ability\r\nto fix CO2<\/sub> in many cultured microbial strains.\r\n\r\nThe analysis found that 147 genera (approximately 300 strains)\r\nharbored CBB cycle\u2013related genes. Among these, CO2<\/sub> fixation has been\r\nreported in 74 genera. In contrast, the remaining 73 genera consist\r\nof strains for which CO2<\/sub> fixation capability has not yet been reported\r\nin the literature or has not yet been verified experimentally.\r\nIn particular, several lineages within Actinomycetota<\/i>\r\n(Streptosporangiales<\/i>) and Deinococcota<\/i> (Thermales<\/i>) contain strains\r\nthat may possess CO2<\/sub> fixation potential but their autotrophic growth\r\nhas not yet been reported.\r\n\r\nTherefore, we systematically organized the data based on literature\r\nsurveys and genome analyses by integrating gene information with\r\ncultivation conditions, including oxygen concentration, temperature,\r\npH, energy sources (electron donors), and isolation environments.\r\nThe dataset we put together gives a foundation for research on CO2<\/sub>\r\nfixation using microbial resources from JCM.\r\n\r\nCO2<\/sub> fixation, the process by which carbon dioxide is incorporated\r\ninto organic compounds, is a fundamental biological activity that\r\nsupports global biogeochemical cycles. The CBB cycle is one of the\r\nmost widespread mechanisms of CO2<\/sub> fixation and is estimated to account\r\nfor approximately 95% of carbon fixation on Earth. With growing\r\ninterest in technologies that utilize CO2<\/sub> as a resource,\r\nmicroorganisms possessing the CBB cycle are attracting attention not\r\nonly for understanding the carbon cycle but also for potential\r\napplications in environmentally sustainable production processes and\r\nbio-manufacturing.\r\n\r\nSeveral representative microorganisms capable of CO2<\/sub> fixation\r\nvia the CBB cycle are listed below.\r\n\r\n•Cupriavidus necator<\/i> (e.g.<\/i>, JCM 36303<\/a>)\r\nFormerly known as Ralstonia eutropha<\/i>, Wautersia eutropha<\/i>, or\r\nAlcaligenes eutrophus<\/i>.\r\nThis hydrogen-oxidizing bacterium is a well-established model organism\r\nand is widely used in industrial applications such as the production\r\nof the bioplastic polyhydroxyalkanoate (PHA) [e.g.<\/i>, Pohlmann A, et al<\/i>. \r\n2006]. Nine strains, including the type strain, are preserved in the JCM.\r\n\r\n• Acidithiobacillus thiooxidans<\/i> (e.g.<\/i>, JCM 3867<\/a>)\r\nFormerly known as Thiobacillus thiooxidans<\/i>.\r\nThis species oxidizes sulfur and sulfur compounds in acidic\r\nenvironments. It is utilized in bioleaching, a technology that uses\r\nmicroorganisms to recover metals from ores [e.g.<\/i>, Wang J, et al<\/i>. 2014]. \r\nFive strains, including the type strain, are preserved in the JCM.\r\n\r\n• Hydrogenovibrio marinus<\/i> (JCM 7688<\/a>)\r\nA hydrogen-oxidizing autotrophic bacterium isolated from marine\r\nenvironments. It exhibits high oxygen tolerance and has been reported\r\nto grow under relatively high oxygen concentrations (up to 40%)\r\n[Nishihara H, et al<\/i>. 1991].\u3000This organism possesses two types of\r\nRuBisCO enzyme which involved in the CBB cycle.\r\n\r\n• Cereibacter sphaeroides<\/i> (JCM 6121<\/a>)\r\nFormerly known as Rhodobacter sphaeroides<\/i> or Rhodopseudomonas\r\nsphaeroides<\/i>. This purple non-sulfur bacterium is a widely used model\r\norganism in studies of photosynthesis and the CBB cycle and possesses\r\ntwo forms of RuBisCO enzyme [e.g.<\/i>,Tabita FR. 1988].\r\n\r\nReferences\r\nNishihara A, et al<\/i>. 2026.\r\nExploring the diversity and metabolic potential of CO2<\/sub> fixation\r\nmediated by RubisCO in prokaryotes in the Japan Collection of\r\nMicroorganisms.\r\nMicrobes and Environments 41: ME25035.\r\nDOI: 10.1264\/jsme2.ME25035<\/a>\r\n\r\nPohlmann A, et al<\/i>. 2006.\r\nGenome sequence of the bioplastic-producing \"Knallgas\" bacterium\r\nRalstonia eutropha<\/i> H16.\r\nNature Biotechnology 24: 1257\u20131262.\r\nDOI: 10.1038\/nbt1244<\/a>\r\n\r\nWang J, et al<\/i>. 2014.\r\nBioleaching of low-grade copper sulfide ores by Acidithiobacillus<\/i>\r\nferrooxidans<\/i> and Acidithiobacillus thiooxidans<\/i>.\r\nJournal of Central South University 21: 728\u2013734.\r\nDOI: 10.1007\/s11771-014-1995-3<\/a>\r\n\r\nNishihara H, et al<\/i>. 1991.\r\nGrowth characteristics and high cell-density cultivation of a marine\r\nobligately chemolithoautotrophic hydrogen-oxidizing bacterium\r\nHydrogenovibrio marinus<\/i> strain MH-110 under a continuous gas-flow system.\r\nJournal of Fermentation and Bioengineering 72: 358\u2013361.\r\nDOI: 10.1016\/0922-338X(91)90087-W<\/a>\r\n\r\nTabita FR. 1988.\r\nMolecular and cellular regulation of autotrophic carbon dioxide\r\nfixation in microorganisms.\r\nMicrobiological Reviews 52: 155\u2013189.\r\nDOI: 10.1128\/mr.52.2.155-189.1988<\/a>\r\n\r\nArisa Nishihara, Ph.D. \r\nPostdoctoral Researcher\r\n\r\n+---------------------------------------------------------------------\r\nRevision of Distribution Fees for Bioresources in RIKEN BRC\r\n+---------------------------------------------------------------------\r\nRIKEN BioResource Research Center (BRC) is a non-profit institution\r\nand only requires users to pay the minimum costs for the actual\r\npreparation and handling of resources for distribution.\r\n\r\nDue to the rising costs of labor and raw materials, we have decided to\r\nrevise our distribution fees.\r\n\r\nThe revised distribution fees will apply to all orders for\r\nbioresources on or after Wednesday, April 1, 2026.\r\n\r\nWe deeply appreciate your understanding and cooperation, and we look\r\nforward to receiving your requests for bioresources.\r\n\r\nhttps:\/\/web.brc.riken.jp\/en\/archives\/news\/20260210_01<\/a>\r\n\r\n+---------------------------------------------------------------------\r\nNewly cataloged strains (2025.12.01 - 2026.02.28)\r\n+---------------------------------------------------------------------\r\nBacteria\r\nAcetobacterium sp.                     JCM 14819<\/a>\r\nAcidaminobacterium chupaoyuni          JCM 37290<\/a>  Type strain\r\nAgarivorans sediminis                  JCM 35392<\/a>  Type strain\r\nAgromyces excoecariae                  JCM 34940<\/a>  Type strain\r\nAlicyclobacillus sp.                   JCM 15091<\/a>\r\nAllocoprococcus comes                  JCM 37939<\/a>  Type strain\r\nAllocoprococcus similis                JCM 37173<\/a>  Type strain\r\n\"Ammoniphilus soli\"                    JCM 37210<\/a>  Proposed type strain\r\n\"Anoxybacillus tunisiense\"             JCM 15468<\/a>\r\nApilactobacillus pseudapinorum         JCM 37175<\/a>  Type strain\r\nAquimarina rhabdastrellae              JCM 37598<\/a>  Type strain\r\nAsticcacaulis carbonis                 JCM 34539<\/a>  Type strain\r\nAurantiacibacter sediminis             JCM 33995<\/a>  Type strain\r\n\"Bacillus spongicola\"                  JCM 36756<\/a>  Proposed type strain\r\nBartonella eidoli                      JCM 36791<\/a>  Type strain\r\nBartonella numerosa                    JCM 36790<\/a>  Type strain\r\nBartonella occidentalis                JCM 36789<\/a>  Type strain\r\nBartonella propinqua                   JCM 36786<\/a>  Type strain\r\nBartonella rhinolophi                  JCM 36787<\/a>  Type strain\r\nBartonella vaga                        JCM 36788<\/a>  Type strain\r\n\"Caldiclava thermospodii\"              JCM 16306<\/a>\r\n\"Cellulophaga omnivescoria\"            JCM 32108<\/a>  Proposed type strain\r\nChelatococcus sp.                      JCM 37729<\/a>\r\nChitinirhabdus sediminis               JCM 37906<\/a>  Type strain\r\nChryseobacterium chendengshani         JCM 33877<\/a>  Type strain\r\nChryseobacterium subflavum             JCM 33868<\/a>  Type strain\r\n\"Clostridium minutum\"                  JCM 14820<\/a>\r\n\"Clostridium paridis\"                  JCM 34646<\/a>  Proposed type strain\r\n\"Clostridium rhizosphaerae\"            JCM 34845<\/a>  Proposed type strain\r\nClostridium sp.                        JCM 16182<\/a>\r\nClostridium sp.                        JCM 16314<\/a>\r\nClostridium sp.                        JCM 16807<\/a>\r\nClostridium sp.                        JCM 16808<\/a>\r\n\"Clostridium yunnanense\"               JCM 34644<\/a>  Proposed type strain\r\nCoprococcus eutactus                   JCM 37940<\/a>  Type strain\r\nCroceiramulus getboli                  JCM 36479<\/a>  Type strain\r\n\"Curtobacterium pomorum\"               JCM 37513<\/a>  Proposed type strain\r\nDysgonomonas reticulitermitis          JCM 35194<\/a>  Type strain\r\nFaecalimonas hominis                   JCM 37172<\/a>  Type strain\r\nFaecalimonas mobilis                   JCM 37798<\/a>  Type strain\r\nFaecalimonas nexilis                   JCM 37525<\/a>\r\nFervidobacterium sp.                   JCM 15582<\/a>\r\n\"Fervidobacterium tianchisum\"          JCM 14752<\/a>\r\nFlagellimonas rhodophyticola           JCM 37802<\/a>  Type strain\r\nFlagellimonas ulvae                    JCM 37803<\/a>  Type strain\r\n\"Flavobacterium agrisoli\"              JCM 34302<\/a>  Proposed type strain\r\nHominimerdicola intestinalis           JCM 36633<\/a>  Type strain\r\nIndolivaga alginatilytica              JCM 38120<\/a>  Type strain\r\nKocuria kalidii                        JCM 37381<\/a>  Type strain\r\nKocuria rhizosphaerae                  JCM 37379<\/a>  Type strain\r\nKocuria rhizosphaericola               JCM 37380<\/a>  Type strain\r\n\"Lacrimispora sanguinis\"               JCM 37550<\/a>  Proposed type strain\r\n\"Lactiplantibacillus kimchii\"          JCM 37966<\/a>  Proposed type strain\r\n\"Lactiplantibacillus koreensis\"        JCM 37965<\/a>  Proposed type strain\r\n\"Marinicella algicola\"                 JCM 35965<\/a>  Proposed type strain\r\nMarinobacter sp.                       JCM 15712<\/a>\r\nMetapseudomonas phytobenefica          JCM 37070<\/a>  Type strain\r\nMethylomonas stagni                    JCM 36702<\/a>  Type strain\r\nMicrobulbifer discodermiae             JCM 37223<\/a>  Type strain\r\nMucilaginibacter aureus                JCM 37500<\/a>  Type strain\r\n\"Mucilaginibacter florum\"              JCM 36590<\/a>  Proposed type strain\r\n\"Mucilaginibacter oryzagri\"            JCM 35894<\/a>  Proposed type strain\r\nMucilaginibacter sediminis             JCM 37501<\/a>  Type strain\r\n\"Natribacillus halophilus\"             JCM 15648<\/a>\r\n\"Neobacillus solisequens\"              JCM 37672<\/a>  Proposed type strain\r\n\"Neobacillus terrisolis\"               JCM 37671<\/a>  Proposed type strain\r\n\"Neorhizobium lilium\"                  JCM 33731<\/a>  Proposed type strain\r\n\"Ningiella algicola\"                   JCM 35964<\/a>  Proposed type strain\r\nParacoccus jiaweipingae                JCM 37697<\/a>  Type strain\r\nParacoccus zhouxuedongae               JCM 37698<\/a>  Type strain\r\n\"Paraniabella aurantiaca\"              JCM 37728<\/a>  Proposed type strain\r\n\"Pelagithermus desulfuricans\"          JCM 15748<\/a>\r\n\"Phaeovulum molybdatiresistens\"        JCM 35387<\/a>  Proposed type strain\r\nPhenylobacterium glaciei               JCM 33227<\/a>  Type strain\r\nPiscibacillus sp.                      JCM 15780<\/a>\r\nPseudocoprococcus catus                JCM 37941<\/a>  Type strain\r\nPseudocoprococcus immobilis            JCM 37951<\/a>  Type strain\r\nPseudodysgonomonas massiliensis        JCM 38122<\/a>  Type strain\r\nPseudomonas bambusae                   JCM 36624<\/a>  Type strain\r\nPseudomonas tumuqii                    JCM 34129<\/a>  Type strain\r\n\"Pseudonocardia mahuensis\"             JCM 34850<\/a>  Proposed type strain\r\nRuminococcus sporogenes                JCM 36793<\/a>  Type strain\r\n\"Salinisphaera marina\"                 JCM 14955<\/a>\r\nSediminibacterium longum               JCM 36264<\/a>  Type strain\r\n\"Sphingomonas xanthus\"                 JCM 32376<\/a>  Proposed type strain\r\n\"Spirochaeta pyruvativorans\"           JCM 15036<\/a>\r\nSpongorhabdus nitratireducens          JCM 37577<\/a>  Type strain\r\n\"Streptomyces dioscori\"                JCM 32173<\/a>  Proposed type strain\r\nStreptomyces secundicynarae            JCM 37325<\/a>  Type strain\r\nThaumasiovibrio clandestinus           JCM 37837<\/a>  Type strain\r\nThermoanaerovibrio sp.                 JCM 15583<\/a>\r\n\"Thermodesulfobium fumaratoxidans\"     JCM 39391<\/a>  Proposed type strain\r\nThermorhabdus hydrogeniformans         JCM 39573<\/a>  Type strain\r\nThermosipho sp.                        JCM 15584<\/a>\r\nUndibacter mobilis                     JCM 32856<\/a>  Type strain\r\nUnidentified bacterium                 JCM 15107<\/a>\r\nVibrio sabulosilitoris                 JCM 37826<\/a>  Type strain\r\nVibrio sabulosilitoris                 JCM 37827<\/a>\r\nViscerimonas tarda                     JCM 35195<\/a>  Type strain\r\n\r\nArchaea\r\n\"Caldiplasma sukawensis\"               JCM 39523<\/a>\r\n\"Caldiplasma sukawensis\"               JCM 39524<\/a>  Proposed type strain\r\n\"Cuniculiplasma thermophilum\"          JCM 39525<\/a>\r\n\"Cuniculiplasma thermophilum\"          JCM 39526<\/a>  Proposed type strain\r\n\"Halonovum rutilum\"                    JCM 36641<\/a>  Proposed type strain\r\n\"Halonovum salinarum\"                  JCM 36640<\/a>  Proposed type strain\r\nHalorubrum sp.                         JCM 14979<\/a>\r\nMethanosarcina mangrovi                JCM 39553<\/a>  Type strain\r\nMethanosarcina sediminis               JCM 39554<\/a>  Type strain\r\nNatronoarchaeum sp.                    JCM 16329<\/a>\r\nNatronomonas amylolytica               JCM 36683<\/a>  Type strain\r\n\"Natronorubrum amylolyticum\"           JCM 37221<\/a>  Proposed type strain\r\n\"Natronorubrum marinum\"                JCM 37154<\/a>  Proposed type strain\r\n\"Natronorubrum salinum\"                JCM 36152<\/a>  Proposed type strain\r\nSalinarchaeum laminariae               JCM 17266<\/a>\r\nThermoplasma acidophilum               JCM 17944<\/a>\r\nThermoplasma acidophilum               JCM 17945<\/a>\r\n\r\nFungi\r\nBannozyma yamatoana                    JCM 5975 <\/a>\r\nBannozyma yamatoana                    JCM 5976 <\/a>\r\nBannozyma yamatoana                    JCM 5977 <\/a>\r\nBullera alba                           JCM 6075 <\/a>\r\nBullera alba                           JCM 6076 <\/a>\r\nCandida albicans                       JCM 2302 <\/a>\r\nCandida membranifaciens                JCM 2336 <\/a>\r\nCandida metapsilosis                   JCM 2371 <\/a>\r\nCandida saitoana                       JCM 2116 <\/a>\r\nCandida saitoana                       JCM 2117 <\/a>\r\nCandida tropicalis                     JCM 2301 <\/a>\r\nCandida tropicalis                     JCM 2303 <\/a>\r\nCandida tropicalis                     JCM 2377 <\/a>\r\nCandida zeylanoides                    JCM 2340 <\/a>\r\nCarlosrosaea camelliae                 JCM 36700<\/a>  Type strain\r\nChrysozyma griseoflava                 JCM 5981 <\/a>\r\nChrysozyma sp.                         JCM 5655 <\/a>\r\nClavispora sp.                         JCM 2274 <\/a>\r\nCutaneotrichosporon curvatum           JCM 11578<\/a>\r\nDebaryomyces hansenii                  JCM 1524 <\/a>\r\nDioszegia aurantia                     JCM 36696<\/a>  Type strain\r\nDioszegia changbaiensis                JCM 5980 <\/a>\r\nDioszegia foliicola                    JCM 36695<\/a>  Type strain\r\nDioszegia guizhouensis                 JCM 36694<\/a>  Type strain\r\nDioszegia guizhouensis                 JCM 36697<\/a>\r\nFarysia photiniae                      JCM 36715<\/a>  Type strain\r\nFilobasidium castaneae                 JCM 35729<\/a>  Type strain\r\nFilobasidium pseudomali                JCM 36693<\/a>  Type strain\r\nFilobasidium qingyuanense              JCM 36688<\/a>  Type strain\r\nGeotrichum candidum                    JCM 2452 <\/a>\r\nGeotrichum candidum                    JCM 2453 <\/a>\r\nGeotrichum klebahnii                   JCM 2455 <\/a>\r\nIssatchenkia orientalis                JCM 3535 <\/a>\r\nKluyveromyces marxianus                JCM 2275 <\/a>\r\nKockovaella quanzhouensis              JCM 36712<\/a>  Type strain\r\nKockovaella sambuci                    JCM 36714<\/a>  Type strain\r\nKurtzmaniella quercitrusa              JCM 2372 <\/a>\r\nLipomyces lipofer                      JCM 5991 <\/a>  Type strain\r\nMagnusiomyces magnusii                 JCM 6310 <\/a>\r\nMagnusiomyces magnusii                 JCM 34065<\/a>\r\nMagnusiomyces magnusii                 JCM 35273<\/a>\r\nMagnusiomyces magnusii                 JCM 35288<\/a>\r\nMagnusiomyces magnusii                 JCM 35299<\/a>\r\nMetschnikowia sp.                      JCM 2378 <\/a>\r\nMeyerozyma guilliermondii              JCM 1540 <\/a>\r\nMonascostroma sphagnophilum            JCM 39663<\/a>\r\nMonascostroma sphagnophilum            JCM 39664<\/a>\r\nPichia fermentans                      JCM 2272 <\/a>\r\nRhodosporidiobolus odoratus            JCM 5982 <\/a>\r\nRhodotorula silvicola                  JCM 36980<\/a>  Type strain\r\nSaitozyma ninhbinhensis                JCM 16266<\/a>\r\nSaitozyma ninhbinhensis                JCM 16267<\/a>\r\nSaitozyma podzolica                    JCM 16268<\/a>\r\nSaitozyma podzolica                    JCM 16269<\/a>\r\nSporobolomyces japonicus               JCM 5737 <\/a>\r\nVanrija humicola                       JCM 1529 <\/a>\r\nVishniacozyma diospyri                 JCM 36719<\/a>  Type strain\r\nVishniacozyma eriobotryae              JCM 36716<\/a>  Type strain\r\nVishniacozyma guiyangensis             JCM 36713<\/a>  Type strain\r\nWickerhamomyces guiyangensis           JCM 36690<\/a>  Type strain\r\nWickerhamomyces paramyanmarensis       JCM 36692<\/a>  Type strain\r\nWickerhamomyces phyllophilus           JCM 36689<\/a>  Type strain\r\nWickerhamomyces quanzhouensis          JCM 36687<\/a>  Type strain\r\nYamadazyma aaseri                      JCM 2292 <\/a>\r\nYamadazyma akebiae                     JCM 36691<\/a>  Type strain\r\nYarrowia lipolytica                    JCM 2346 <\/a>\r\nYarrowia yakushimensis                 JCM 12780<\/a>\r\nYarrowia yakushimensis                 JCM 12781<\/a>\r\nYarrowia yakushimensis                 JCM 12783<\/a>\r\nZygosaccharomyces bailii               JCM 1799 <\/a>\r\n\r\nAlgae\r\nCoccomyxa sp.                          JCM 39665<\/a>\r\nCoccomyxa sp.                          JCM 39666<\/a>\r\n______________________________________________________________________\r\n*We hope you find the contents of this message of interest. However,\r\n if you would prefer to unsubscribe from future e-mails, please send\r\n an e-mail to inquiry.jcm@riken.jp<\/a>. \r\n*If you have any questions or comments, please send an e-mail to\r\n inquiry.jcm@riken.jp<\/a>. \r\n*Content is subject to change without notice. \r\n*All Rights Reserved. \r\n______________________________________________________________________\r\nMicrobe Division \/ Japan Collection of Microorganisms\r\nRIKEN BioResource Research Center \r\n3-1-1 Koyadai, Tsukuba, Ibaraki 305-0074, Japan\r\ninquiry.jcm@riken.jp<\/a>\r\nhttps:\/\/jcm.brc.riken.jp\/en\/<\/a>\r\nhttps:\/\/x.com\/RBRC_JCM_en<\/a>\r\nhttps:\/\/x.com\/RIKEN_BRC_en<\/a>\r\nhttps:\/\/bsky.app\/profile\/riken-brc-en.bsky.social<\/a>\r\n______________________________________________________________________\r\n2026.03.19\r\n<\/font><\/tt><\/pre>\n","protected":false},"excerpt":{"rendered":"
********************************************************************** RIKEN BioResource Research Center – Japan Collection of Microorganisms JCM Mail News (2026.03.19) ********************************************************************** RIKEN BioResource Research Center – Japan Collection of Microorganisms (JCM) is pleased to update you with the latest information. ======= Contents ===================================================== – Special topic: A systematic overview of CO2-fixing microorganisms in the JCM collection – Revision of Distribution Fees for Bioresources in RIKEN BRC – Newly cataloged strains (2025.12.01 – 2026.02.28) ====================================================================== +——————————————————————— Special topic: A systematic overview of CO2-fixing microorganisms in the JCM collection +——————————————————————— To deepen our understanding of microorganisms and to utilize them effectively as biological resources, it is important to integrate genome information with cultivation data. To this end, we examined the presence of Calvin\u2013Benson\u2013Bassham (CBB) cycle\u2013related genes and CO2 fixation capabilities among approximately 6,700 genome-sequenced microbial strains maintained in the Japan Collection of Microorganisms (JCM) [Nishihara A, et al. 2026]. Our analysis revealed a lack of experimental confirmation of the ability to fix CO2 in many cultured microbial strains. The analysis found that 147 genera (approximately 300 strains) harbored CBB cycle\u2013related genes. Among these, CO2 fixation has been reported in 74 genera. In contrast, the remaining 73 genera consist of strains for which CO2 fixation capability has not yet […]<\/p>\n","protected":false},"author":17,"featured_media":0,"parent":3314,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_seopress_titles_title":"","_seopress_titles_desc":"","_seopress_robots_index":"","_seopress_robots_follow":"","_seopress_robots_imageindex":"","_seopress_robots_snippet":"","_seopress_robots_primary_cat":"","_seopress_robots_breadcrumbs":"","_seopress_robots_freeze_modified_date":"","_seopress_robots_custom_modified_date":"","_seopress_robots_canonical":"","_seopress_social_fb_title":"","_seopress_social_fb_desc":"","_seopress_social_fb_img":"","_seopress_social_fb_img_attachment_id":0,"_seopress_social_fb_img_width":0,"_seopress_social_fb_img_height":0,"_seopress_social_twitter_title":"","_seopress_social_twitter_desc":"","_seopress_social_twitter_img":"","_seopress_social_twitter_img_attachment_id":0,"_seopress_social_twitter_img_width":0,"_seopress_social_twitter_img_height":0,"_seopress_redirections_value":"","_seopress_redirections_enabled":"","_seopress_redirections_enabled_regex":"","_seopress_redirections_logged_status":"both","_seopress_redirections_param":"","_seopress_redirections_type":301,"_seopress_analysis_target_kw":"","footnotes":"","_wp_rev_ctl_limit":""},"class_list":["post-5565","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"http:\/\/jcm.brc.riken.jp\/en\/wp-json\/wp\/v2\/pages\/5565","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/jcm.brc.riken.jp\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"http:\/\/jcm.brc.riken.jp\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"http:\/\/jcm.brc.riken.jp\/en\/wp-json\/wp\/v2\/users\/17"}],"replies":[{"embeddable":true,"href":"http:\/\/jcm.brc.riken.jp\/en\/wp-json\/wp\/v2\/comments?post=5565"}],"version-history":[{"count":1,"href":"http:\/\/jcm.brc.riken.jp\/en\/wp-json\/wp\/v2\/pages\/5565\/revisions"}],"predecessor-version":[{"id":5568,"href":"http:\/\/jcm.brc.riken.jp\/en\/wp-json\/wp\/v2\/pages\/5565\/revisions\/5568"}],"up":[{"embeddable":true,"href":"http:\/\/jcm.brc.riken.jp\/en\/wp-json\/wp\/v2\/pages\/3314"}],"wp:attachment":[{"href":"http:\/\/jcm.brc.riken.jp\/en\/wp-json\/wp\/v2\/media?parent=5565"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}