Erwinia endophytica sp. nov., isolated from potato (Solanum tuberosum L.) stems
We analysed, using a polyphasic taxonomic approach, two bacterial strains coded BSTT30 and BSTT40, isolated in the course of a study of endophytic bacteria occurring in the stems and roots of potatoes growing in soil from Salamanca, Spain. The 16S rRNA gene sequence was identical in both strains and had 98.4% identity with respect to the closest relatives Erwinia tasmaniensis Et1/99T and Erwinia rhapontici ATCC29283T. Erwinia billingiae E63 and Erwinia toletana A37 were also closely related with 98.2% sequence similarities, so the novel strains were classified within the genus Erwinia. The analysis of the housekeeping genes gpd, gyrB and rpoD confirmed the phylogenetic affiliation of strains BSTT30 and BSTT40 with similarities of lower than 90% in all cases with respect to the closest relatives mentioned above. The respiratory quinone of strain BSTT30 was Q8. The major fatty acids were C16: 0, C16: 1ω7c/16: 1ω6c in summed feature 3 and C18: 1ω7c/18: 2ω6, 9c in summed feature 8. The novel strains were oxidase-negative and catalase-positive. Glucose was fermented without gas production. They were negative for arginine dihydrolase, urease and indole production. The strains could grow at 35°C and at pH 10. DNA G+C content was 50.1 mol%. DNA–DNA hybridization results showed values of lower than 29% relatedness with respect to the type strains of the four most closely related species. Therefore, the combined genotypic, phenotypic and chemotaxonomic data support the classification of strains BSTT30 and BSTT40 into a novel species of the genus Erwinia, for which the name Erwinia endophytica sp. nov. is proposed. The type strain is BSTT30 (=LMG 28457, CECT 8692).
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Microbiology Society
2016-02-01
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Online Access: | http://hdl.handle.net/10261/199103 http://dx.doi.org/10.13039/501100003329 http://dx.doi.org/10.13039/501100003339 http://dx.doi.org/10.13039/501100000780 http://dx.doi.org/10.13039/501100014180 |
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dig-ica-es-10261-1991032021-06-07T07:41:08Z Erwinia endophytica sp. nov., isolated from potato (Solanum tuberosum L.) stems Ramírez-Bahena, Marta-Helena Salazar Iglesias, S. Cuesta Sánchez, Mª José Tejedor, Carmen Igual, José Mariano Fernández-Pascual, Mercedes Peix, Álvaro Junta de Castilla y León Ministerio de Economía y Competitividad (España) Consejo Superior de Investigaciones Científicas (España) European Commission We analysed, using a polyphasic taxonomic approach, two bacterial strains coded BSTT30 and BSTT40, isolated in the course of a study of endophytic bacteria occurring in the stems and roots of potatoes growing in soil from Salamanca, Spain. The 16S rRNA gene sequence was identical in both strains and had 98.4% identity with respect to the closest relatives Erwinia tasmaniensis Et1/99T and Erwinia rhapontici ATCC29283T. Erwinia billingiae E63 and Erwinia toletana A37 were also closely related with 98.2% sequence similarities, so the novel strains were classified within the genus Erwinia. The analysis of the housekeeping genes gpd, gyrB and rpoD confirmed the phylogenetic affiliation of strains BSTT30 and BSTT40 with similarities of lower than 90% in all cases with respect to the closest relatives mentioned above. The respiratory quinone of strain BSTT30 was Q8. The major fatty acids were C16: 0, C16: 1ω7c/16: 1ω6c in summed feature 3 and C18: 1ω7c/18: 2ω6, 9c in summed feature 8. The novel strains were oxidase-negative and catalase-positive. Glucose was fermented without gas production. They were negative for arginine dihydrolase, urease and indole production. The strains could grow at 35°C and at pH 10. DNA G+C content was 50.1 mol%. DNA–DNA hybridization results showed values of lower than 29% relatedness with respect to the type strains of the four most closely related species. Therefore, the combined genotypic, phenotypic and chemotaxonomic data support the classification of strains BSTT30 and BSTT40 into a novel species of the genus Erwinia, for which the name Erwinia endophytica sp. nov. is proposed. The type strain is BSTT30 (=LMG 28457, CECT 8692). This research was funded by Junta de Castilla y León (Spanish Regional Government) under project CSI327A12-2 and Ministerio de Economía y Competitividad (Spanish Government) under project AGL2013-40758-R. We acknowledge IDEBIO S. L. and Dr P. García-Benavides and Dr J. L. Palomo for their help and support, and also Dr J. I. Ruiz de Galarreta for providing potato seeds. We thank E. Velázquez for useful discussions. M.-H. R.-B is the recipient of a JAE-Doc researcher contract from CSIC co-financed by ERDF. We are grateful to V. Souza-Egipsy from ICA Electron Microscopy Service. 2020-01-28T13:57:08Z 2020-01-28T13:57:08Z 2016-02-01 2020-01-28T13:57:09Z artículo http://purl.org/coar/resource_type/c_6501 doi: 10.1099/ijsem.0.000820 issn: 1466-5026 e-issn: 1466-5034 International Journal of Systematic and Evolutionary Microbiology 66(2): 975-981 (2016) http://hdl.handle.net/10261/199103 10.1099/ijsem.0.000820 http://dx.doi.org/10.13039/501100003329 http://dx.doi.org/10.13039/501100003339 http://dx.doi.org/10.13039/501100000780 http://dx.doi.org/10.13039/501100014180 #PLACEHOLDER_PARENT_METADATA_VALUE# info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/AGL2013-40758-R http://dx.doi.org/10.1099/ijsem.0.000820 Sí none Microbiology Society |
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We analysed, using a polyphasic taxonomic approach, two bacterial strains coded BSTT30 and BSTT40, isolated in the course of a study of endophytic bacteria occurring in the stems and roots of potatoes growing in soil from Salamanca, Spain. The 16S rRNA gene sequence was identical in both strains and had 98.4% identity with respect to the closest relatives Erwinia tasmaniensis Et1/99T and Erwinia rhapontici ATCC29283T. Erwinia billingiae E63 and Erwinia toletana A37 were also closely related with 98.2% sequence similarities, so the novel strains were classified within the genus Erwinia. The analysis of the housekeeping genes gpd, gyrB and rpoD confirmed the phylogenetic affiliation of strains BSTT30 and BSTT40 with similarities of lower than 90% in all cases with respect to the closest relatives mentioned above. The respiratory quinone of strain BSTT30 was Q8. The major fatty acids were C16: 0, C16: 1ω7c/16: 1ω6c in summed feature 3 and C18: 1ω7c/18: 2ω6, 9c in summed feature 8. The novel strains were oxidase-negative and catalase-positive. Glucose was fermented without gas production. They were negative for arginine dihydrolase, urease and indole production. The strains could grow at 35°C and at pH 10. DNA G+C content was 50.1 mol%. DNA–DNA hybridization results showed values of lower than 29% relatedness with respect to the type strains of the four most closely related species. Therefore, the combined genotypic, phenotypic and chemotaxonomic data support the classification of strains BSTT30 and BSTT40 into a novel species of the genus Erwinia, for which the name Erwinia endophytica sp. nov. is proposed. The type strain is BSTT30 (=LMG 28457, CECT 8692). |
author2 |
Junta de Castilla y León |
author_facet |
Junta de Castilla y León Ramírez-Bahena, Marta-Helena Salazar Iglesias, S. Cuesta Sánchez, Mª José Tejedor, Carmen Igual, José Mariano Fernández-Pascual, Mercedes Peix, Álvaro |
format |
artículo |
author |
Ramírez-Bahena, Marta-Helena Salazar Iglesias, S. Cuesta Sánchez, Mª José Tejedor, Carmen Igual, José Mariano Fernández-Pascual, Mercedes Peix, Álvaro |
spellingShingle |
Ramírez-Bahena, Marta-Helena Salazar Iglesias, S. Cuesta Sánchez, Mª José Tejedor, Carmen Igual, José Mariano Fernández-Pascual, Mercedes Peix, Álvaro Erwinia endophytica sp. nov., isolated from potato (Solanum tuberosum L.) stems |
author_sort |
Ramírez-Bahena, Marta-Helena |
title |
Erwinia endophytica sp. nov., isolated from potato (Solanum tuberosum L.) stems |
title_short |
Erwinia endophytica sp. nov., isolated from potato (Solanum tuberosum L.) stems |
title_full |
Erwinia endophytica sp. nov., isolated from potato (Solanum tuberosum L.) stems |
title_fullStr |
Erwinia endophytica sp. nov., isolated from potato (Solanum tuberosum L.) stems |
title_full_unstemmed |
Erwinia endophytica sp. nov., isolated from potato (Solanum tuberosum L.) stems |
title_sort |
erwinia endophytica sp. nov., isolated from potato (solanum tuberosum l.) stems |
publisher |
Microbiology Society |
publishDate |
2016-02-01 |
url |
http://hdl.handle.net/10261/199103 http://dx.doi.org/10.13039/501100003329 http://dx.doi.org/10.13039/501100003339 http://dx.doi.org/10.13039/501100000780 http://dx.doi.org/10.13039/501100014180 |
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