Glucose Oxidation to Pyruvate Is Not Essential for Brucella suis Biovar 5 Virulence in the Mouse Model
Brucella species cause brucellosis, a worldwide extended zoonosis. The brucellae are related to free-living and plant-associated α2-Proteobacteria and, since they multiply within host cells, their metabolism probably reflects this adaptation. To investigate this, we used the rodent-associated Brucel...
| Autores: | , , , , , , , , |
|---|---|
| Tipo de documento: | artigo |
| Data de publicação: | 2021 |
| País: | España |
| Recursos: | Universidad de Navarra |
| Repositório: | Dadun. Depósito Académico Digital de la Universidad de Navarra |
| Idioma: | inglês |
| OAI Identifier: | oai:dadun.unav.edu:10171/69677 |
| Acesso em linha: | https://hdl.handle.net/10171/69677 |
| Access Level: | Acceso aberto |
| Palavra-chave: | Brucella Metabolism Glucose Entner-Doudoroff Virulence |
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Glucose Oxidation to Pyruvate Is Not Essential for Brucella suis Biovar 5 Virulence in the Mouse ModelLázaro-Antón, L. (Leticia)|||/items/914740d0-4db1-482f-81fa-bbff2cada166de-Miguel, M.J. (María Jesús)|||/items/cfc74851-e6d4-4126-a8f6-71e55b7e72f7Barbier, T. (Thibault)|||/items/b67b44cc-f10c-4bfc-bd12-d5992a13e810Conde-Álvarez, R. (Raquel)|||/items/7a805559-3962-434b-9df9-ec243d61b5aaMuñoz, P. (Pilar)|||/items/4e98f4c8-d3e4-4fb3-b781-07a0bcb652bcLetesson, J.J. (Jean Jacques)|||/items/310147b5-d631-4025-ad82-d3e696cc9a4cIriarte-Cilveti, M. (Maite)|||/items/5b20b123-3967-4f07-b577-13d13aa57363Moriyon, I. (Ignacio)|||/items/834b4ce9-a879-4ba7-8884-39d0ddd88c7bZuñiga-Ripa, A. (Amaia)|||/items/9aa6da2e-e507-4319-a12c-092436f70febBrucellaMetabolismGlucoseEntner-DoudoroffVirulenceBrucella species cause brucellosis, a worldwide extended zoonosis. The brucellae are related to free-living and plant-associated α2-Proteobacteria and, since they multiply within host cells, their metabolism probably reflects this adaptation. To investigate this, we used the rodent-associated Brucella suis biovar 5, which in contrast to the ruminant-associated Brucella abortus and Brucella melitensis and other B. suis biovars, is fast-growing and conserves the ancestral Entner-Doudoroff pathway (EDP) present in the plant-associated relatives. We constructed mutants in Edd (glucose-6-phosphate dehydratase; first EDP step), PpdK (pyruvate phosphate dikinase; phosphoenolpyruvate ⇌ pyruvate), and Pyk (pyruvate kinase; phosphoenolpyruvate → pyruvate). In a chemically defined medium with glucose as the only C source, the Edd mutant showed reduced growth rates and the triple Edd-PpdK-Pyk mutant did not grow. Moreover, the triple mutant was also unable to grow on ribose or xylose. Therefore, B. suis biovar 5 sugar catabolism proceeds through both the Pentose Phosphate shunt and EDP, and EDP absence and exclusive use of the shunt could explain at least in part the comparatively reduced growth rates of B. melitensis and B. abortus. The triple Edd-PpdK-Pyk mutant was not attenuated in mice. Thus, although an anabolic use is likely, this suggests that hexose/pentose catabolism to pyruvate is not essential for B. suis biovar 5 multiplication within host cells, a hypothesis consistent with the lack of classical glycolysis in all Brucella species and of EDP in B. melitensis and B. abortus. These results and those of previous works suggest that within cells, the brucellae use mostly 3 and 4 C substrates fed into anaplerotic pathways and only a limited supply of 5 and 6 C sugars, thus favoring the EDP loss observed in some species.Dadun. Depósito Académico Digital Universidad de Navarra20242024-07-1720212021-01-0120212021-01-01journal articlehttp://purl.org/coar/resource_type/c_6501info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/10171/69677reponame:Dadun. Depósito Académico Digital de la Universidad de Navarrainstname:Universidad de NavarraInglésengopen accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccessoai:dadun.unav.edu:10171/696772026-06-21T12:47:57Z |
| dc.title.none.fl_str_mv |
Glucose Oxidation to Pyruvate Is Not Essential for Brucella suis Biovar 5 Virulence in the Mouse Model |
| title |
Glucose Oxidation to Pyruvate Is Not Essential for Brucella suis Biovar 5 Virulence in the Mouse Model |
| spellingShingle |
Glucose Oxidation to Pyruvate Is Not Essential for Brucella suis Biovar 5 Virulence in the Mouse Model Lázaro-Antón, L. (Leticia)|||/items/914740d0-4db1-482f-81fa-bbff2cada166 Brucella Metabolism Glucose Entner-Doudoroff Virulence |
| title_short |
Glucose Oxidation to Pyruvate Is Not Essential for Brucella suis Biovar 5 Virulence in the Mouse Model |
| title_full |
Glucose Oxidation to Pyruvate Is Not Essential for Brucella suis Biovar 5 Virulence in the Mouse Model |
| title_fullStr |
Glucose Oxidation to Pyruvate Is Not Essential for Brucella suis Biovar 5 Virulence in the Mouse Model |
| title_full_unstemmed |
Glucose Oxidation to Pyruvate Is Not Essential for Brucella suis Biovar 5 Virulence in the Mouse Model |
| title_sort |
Glucose Oxidation to Pyruvate Is Not Essential for Brucella suis Biovar 5 Virulence in the Mouse Model |
| dc.creator.none.fl_str_mv |
Lázaro-Antón, L. (Leticia)|||/items/914740d0-4db1-482f-81fa-bbff2cada166 de-Miguel, M.J. (María Jesús)|||/items/cfc74851-e6d4-4126-a8f6-71e55b7e72f7 Barbier, T. (Thibault)|||/items/b67b44cc-f10c-4bfc-bd12-d5992a13e810 Conde-Álvarez, R. (Raquel)|||/items/7a805559-3962-434b-9df9-ec243d61b5aa Muñoz, P. (Pilar)|||/items/4e98f4c8-d3e4-4fb3-b781-07a0bcb652bc Letesson, J.J. (Jean Jacques)|||/items/310147b5-d631-4025-ad82-d3e696cc9a4c Iriarte-Cilveti, M. (Maite)|||/items/5b20b123-3967-4f07-b577-13d13aa57363 Moriyon, I. (Ignacio)|||/items/834b4ce9-a879-4ba7-8884-39d0ddd88c7b Zuñiga-Ripa, A. (Amaia)|||/items/9aa6da2e-e507-4319-a12c-092436f70feb |
| author |
Lázaro-Antón, L. (Leticia)|||/items/914740d0-4db1-482f-81fa-bbff2cada166 |
| author_facet |
Lázaro-Antón, L. (Leticia)|||/items/914740d0-4db1-482f-81fa-bbff2cada166 de-Miguel, M.J. (María Jesús)|||/items/cfc74851-e6d4-4126-a8f6-71e55b7e72f7 Barbier, T. (Thibault)|||/items/b67b44cc-f10c-4bfc-bd12-d5992a13e810 Conde-Álvarez, R. (Raquel)|||/items/7a805559-3962-434b-9df9-ec243d61b5aa Muñoz, P. (Pilar)|||/items/4e98f4c8-d3e4-4fb3-b781-07a0bcb652bc Letesson, J.J. (Jean Jacques)|||/items/310147b5-d631-4025-ad82-d3e696cc9a4c Iriarte-Cilveti, M. (Maite)|||/items/5b20b123-3967-4f07-b577-13d13aa57363 Moriyon, I. (Ignacio)|||/items/834b4ce9-a879-4ba7-8884-39d0ddd88c7b Zuñiga-Ripa, A. (Amaia)|||/items/9aa6da2e-e507-4319-a12c-092436f70feb |
| author_role |
author |
| author2 |
de-Miguel, M.J. (María Jesús)|||/items/cfc74851-e6d4-4126-a8f6-71e55b7e72f7 Barbier, T. (Thibault)|||/items/b67b44cc-f10c-4bfc-bd12-d5992a13e810 Conde-Álvarez, R. (Raquel)|||/items/7a805559-3962-434b-9df9-ec243d61b5aa Muñoz, P. (Pilar)|||/items/4e98f4c8-d3e4-4fb3-b781-07a0bcb652bc Letesson, J.J. (Jean Jacques)|||/items/310147b5-d631-4025-ad82-d3e696cc9a4c Iriarte-Cilveti, M. (Maite)|||/items/5b20b123-3967-4f07-b577-13d13aa57363 Moriyon, I. (Ignacio)|||/items/834b4ce9-a879-4ba7-8884-39d0ddd88c7b Zuñiga-Ripa, A. (Amaia)|||/items/9aa6da2e-e507-4319-a12c-092436f70feb |
| author2_role |
author author author author author author author author |
| dc.contributor.none.fl_str_mv |
Dadun. Depósito Académico Digital Universidad de Navarra |
| dc.subject.none.fl_str_mv |
Brucella Metabolism Glucose Entner-Doudoroff Virulence |
| topic |
Brucella Metabolism Glucose Entner-Doudoroff Virulence |
| description |
Brucella species cause brucellosis, a worldwide extended zoonosis. The brucellae are related to free-living and plant-associated α2-Proteobacteria and, since they multiply within host cells, their metabolism probably reflects this adaptation. To investigate this, we used the rodent-associated Brucella suis biovar 5, which in contrast to the ruminant-associated Brucella abortus and Brucella melitensis and other B. suis biovars, is fast-growing and conserves the ancestral Entner-Doudoroff pathway (EDP) present in the plant-associated relatives. We constructed mutants in Edd (glucose-6-phosphate dehydratase; first EDP step), PpdK (pyruvate phosphate dikinase; phosphoenolpyruvate ⇌ pyruvate), and Pyk (pyruvate kinase; phosphoenolpyruvate → pyruvate). In a chemically defined medium with glucose as the only C source, the Edd mutant showed reduced growth rates and the triple Edd-PpdK-Pyk mutant did not grow. Moreover, the triple mutant was also unable to grow on ribose or xylose. Therefore, B. suis biovar 5 sugar catabolism proceeds through both the Pentose Phosphate shunt and EDP, and EDP absence and exclusive use of the shunt could explain at least in part the comparatively reduced growth rates of B. melitensis and B. abortus. The triple Edd-PpdK-Pyk mutant was not attenuated in mice. Thus, although an anabolic use is likely, this suggests that hexose/pentose catabolism to pyruvate is not essential for B. suis biovar 5 multiplication within host cells, a hypothesis consistent with the lack of classical glycolysis in all Brucella species and of EDP in B. melitensis and B. abortus. These results and those of previous works suggest that within cells, the brucellae use mostly 3 and 4 C substrates fed into anaplerotic pathways and only a limited supply of 5 and 6 C sugars, thus favoring the EDP loss observed in some species. |
| publishDate |
2021 |
| dc.date.none.fl_str_mv |
2021 2021-01-01 2021 2021-01-01 2024 2024-07-17 |
| dc.type.none.fl_str_mv |
journal article http://purl.org/coar/resource_type/c_6501 |
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info:eu-repo/semantics/article |
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article |
| dc.identifier.none.fl_str_mv |
https://hdl.handle.net/10171/69677 |
| url |
https://hdl.handle.net/10171/69677 |
| dc.language.none.fl_str_mv |
Inglés eng |
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Inglés |
| language |
eng |
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open access http://purl.org/coar/access_right/c_abf2 |
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info:eu-repo/semantics/openAccess |
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open access http://purl.org/coar/access_right/c_abf2 |
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openAccess |
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application/pdf |
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reponame:Dadun. Depósito Académico Digital de la Universidad de Navarra instname:Universidad de Navarra |
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Universidad de Navarra |
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Dadun. Depósito Académico Digital de la Universidad de Navarra |
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Dadun. Depósito Académico Digital de la Universidad de Navarra |
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