A P Shorokhova, N E Suzina, V N Polivtseva, T Z Esikova, D V Ross, V P Kholodenko, T N Abashina, V I Duda, A M Boronin
{"title":"Sporulation of Bacillus subtilis in Binary Cultures with Ultramicrobacteria.","authors":"A P Shorokhova, N E Suzina, V N Polivtseva, T Z Esikova, D V Ross, V P Kholodenko, T N Abashina, V I Duda, A M Boronin","doi":"","DOIUrl":null,"url":null,"abstract":"<p><p>The effect of ultramicrobacterial epibionts of the genera Kaistia (strain NF1), Chryseobacterium\n(strain NF4), and Stenotrophomonas (strain FM3) on the process of sporulation of Bacillus subtilis ATCC\n6633 was studied. The investigated strains of ultramicrobacteria (UMB) were found to inhibit the sporulation\nprocess of B. subtilis ATCC 6633 in binary mixed cultures, exhibiting a 3-day delay of the onset of sporulation\ncompared to the control one, an extended period of the prospore maturation, formation of the fraction of\nimmature spores, and development of ultrastructural defects in many endospores. Thus, investigation of\nbinary mixed cultures of B. subtilis and UMB revealed that, apart from suppression of reproduction and lysis\nof host vegetative cells, inhibition of spore formation and destruction of endospores was yet another feature\nof intermicrobial parasitism. The UMB parasites of the studied genera are assumed to participate in the regulation\nof development and reproduction of B. subtilis in natural habitats of this spore-forming bacterium.</p>","PeriodicalId":18732,"journal":{"name":"Mikrobiologiia","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Mikrobiologiia","FirstCategoryId":"1085","ListUrlMain":"","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
The effect of ultramicrobacterial epibionts of the genera Kaistia (strain NF1), Chryseobacterium
(strain NF4), and Stenotrophomonas (strain FM3) on the process of sporulation of Bacillus subtilis ATCC
6633 was studied. The investigated strains of ultramicrobacteria (UMB) were found to inhibit the sporulation
process of B. subtilis ATCC 6633 in binary mixed cultures, exhibiting a 3-day delay of the onset of sporulation
compared to the control one, an extended period of the prospore maturation, formation of the fraction of
immature spores, and development of ultrastructural defects in many endospores. Thus, investigation of
binary mixed cultures of B. subtilis and UMB revealed that, apart from suppression of reproduction and lysis
of host vegetative cells, inhibition of spore formation and destruction of endospores was yet another feature
of intermicrobial parasitism. The UMB parasites of the studied genera are assumed to participate in the regulation
of development and reproduction of B. subtilis in natural habitats of this spore-forming bacterium.
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