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Assessing niche separation in coexisting Limnohabitans strains through interactions with a competitor, viruses, and a bacterivore
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SYSNO ASEP 0343448 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Assessing niche separation in coexisting Limnohabitans strains through interactions with a competitor, viruses, and a bacterivore Tvůrce(i) Šimek, Karel (BC-A) RID, ORCID
Kasalický, Vojtěch (BC-A) RID, ORCID
Horňák, Karel (BC-A) RID
Hahn, M.W. (AT)
Weinbauer, M.G. (FR)Zdroj.dok. Applied and Environmental Microbiology. - : American Society for Microbiology - ISSN 0099-2240
Roč. 76, č. 5 (2010), s. 1406-1416Poč.str. 11 s. Jazyk dok. eng - angličtina Země vyd. US - Spojené státy americké Klíč. slova betaproteobacterial isolates ; genus Limnohabitans ; virus and grazer manipulation ; growth competition ; bacterial mortality sources Vědní obor RIV EE - Mikrobiologie, virologie CEP GA206/08/0015 GA ČR - Grantová agentura ČR MEB060702 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy CEZ AV0Z60170517 - HBU-Z, BC-A (2005-2011) UT WOS 000274855800013 DOI 10.1128/AEM.02517-09 Anotace We assessed niche separation in two closely related (99.1% 16S rRNA similarity) bacterial strains from the genus Limnohabitans. The two strains, designated B4 and D5, were isolated concurrently from a freshwater reservoir. Differences between the strains were examined through monitoring interactions with a bacterial competitor, Flectobacillus (FL), and virus- and predator-induced mortality. The mortality factors and competition between the strains significantly affected their population dynamics. While strains B4 and FL appeared vulnerable to environmental viruses, strain D5 did not. Predator-induced mortality had the greatest impact on FL, followed by that on D5 and then B4. The virus vulnerable B4 strain had smaller cells, but it was less subject to grazing. In contrast, the virus-resistant D5, with slightly larger grazing-vulnerable cells, was competitive with FL. Thus our data suggest contrasting ecophysiology and partial niche separation in two coexisting Limnohabitans strains. Pracoviště Biologické centrum (od r. 2006) Kontakt Dana Hypšová, eje@eje.cz, Tel.: 387 775 214 Rok sběru 2012
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