Polar growth in the Alphaproteobacterial order Rhizobiales

Pamela J B Brown, Miguel A de Pedro, David T Kysela, Charles Van der Henst, Jinwoo Kim, Xavier De Bolle, Clay Fuqua, Yves V Brun

Résultats de recherche: Contribution à un journal/une revueArticle

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Résumé

Elongation of many rod-shaped bacteria occurs by peptidoglycan synthesis at discrete foci along the sidewall of the cells. However, within the Rhizobiales, there are many budding bacteria, in which new cell growth is constrained to a specific region. The phylogeny of the Rhizobiales indicates that this mode of zonal growth may be ancestral. We demonstrate that the rod-shaped bacterium Agrobacterium tumefaciens grows unidirectionally from the new pole generated after cell division and has an atypical peptidoglycan composition. Polar growth occurs under all conditions tested, including when cells are attached to a plant root and under conditions that induce virulence. Finally, we show that polar growth also occurs in the closely related bacteria Sinorhizobium meliloti, Brucella abortus, and Ochrobactrum anthropi. We find that unipolar growth is an ancestral and conserved trait among the Rhizobiales, which includes important mutualists and pathogens of plants and animals.
langue originaleAnglais
Pages (de - à)1697-701
Nombre de pages5
journalProceedings of the National Academy of Sciences of the United States of America
Volume109
Numéro de publication5
Les DOIs
étatPublié - 2012

Empreinte digitale

Bacteria
Growth
Peptidoglycan
Ochrobactrum anthropi
Sinorhizobium meliloti
Brucella abortus
Agrobacterium tumefaciens
Plant Roots
Phylogeny
Cell Division
Virulence

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Brown, Pamela J B ; de Pedro, Miguel A ; Kysela, David T ; Van der Henst, Charles ; Kim, Jinwoo ; De Bolle, Xavier ; Fuqua, Clay ; Brun, Yves V. / Polar growth in the Alphaproteobacterial order Rhizobiales. Dans: Proceedings of the National Academy of Sciences of the United States of America. 2012 ; Vol 109, Numéro 5. p. 1697-701.
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abstract = "Elongation of many rod-shaped bacteria occurs by peptidoglycan synthesis at discrete foci along the sidewall of the cells. However, within the Rhizobiales, there are many budding bacteria, in which new cell growth is constrained to a specific region. The phylogeny of the Rhizobiales indicates that this mode of zonal growth may be ancestral. We demonstrate that the rod-shaped bacterium Agrobacterium tumefaciens grows unidirectionally from the new pole generated after cell division and has an atypical peptidoglycan composition. Polar growth occurs under all conditions tested, including when cells are attached to a plant root and under conditions that induce virulence. Finally, we show that polar growth also occurs in the closely related bacteria Sinorhizobium meliloti, Brucella abortus, and Ochrobactrum anthropi. We find that unipolar growth is an ancestral and conserved trait among the Rhizobiales, which includes important mutualists and pathogens of plants and animals.",
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Polar growth in the Alphaproteobacterial order Rhizobiales. / Brown, Pamela J B; de Pedro, Miguel A; Kysela, David T; Van der Henst, Charles; Kim, Jinwoo; De Bolle, Xavier; Fuqua, Clay; Brun, Yves V.

Dans: Proceedings of the National Academy of Sciences of the United States of America, Vol 109, Numéro 5, 2012, p. 1697-701.

Résultats de recherche: Contribution à un journal/une revueArticle

TY - JOUR

T1 - Polar growth in the Alphaproteobacterial order Rhizobiales

AU - Brown, Pamela J B

AU - de Pedro, Miguel A

AU - Kysela, David T

AU - Van der Henst, Charles

AU - Kim, Jinwoo

AU - De Bolle, Xavier

AU - Fuqua, Clay

AU - Brun, Yves V

PY - 2012

Y1 - 2012

N2 - Elongation of many rod-shaped bacteria occurs by peptidoglycan synthesis at discrete foci along the sidewall of the cells. However, within the Rhizobiales, there are many budding bacteria, in which new cell growth is constrained to a specific region. The phylogeny of the Rhizobiales indicates that this mode of zonal growth may be ancestral. We demonstrate that the rod-shaped bacterium Agrobacterium tumefaciens grows unidirectionally from the new pole generated after cell division and has an atypical peptidoglycan composition. Polar growth occurs under all conditions tested, including when cells are attached to a plant root and under conditions that induce virulence. Finally, we show that polar growth also occurs in the closely related bacteria Sinorhizobium meliloti, Brucella abortus, and Ochrobactrum anthropi. We find that unipolar growth is an ancestral and conserved trait among the Rhizobiales, which includes important mutualists and pathogens of plants and animals.

AB - Elongation of many rod-shaped bacteria occurs by peptidoglycan synthesis at discrete foci along the sidewall of the cells. However, within the Rhizobiales, there are many budding bacteria, in which new cell growth is constrained to a specific region. The phylogeny of the Rhizobiales indicates that this mode of zonal growth may be ancestral. We demonstrate that the rod-shaped bacterium Agrobacterium tumefaciens grows unidirectionally from the new pole generated after cell division and has an atypical peptidoglycan composition. Polar growth occurs under all conditions tested, including when cells are attached to a plant root and under conditions that induce virulence. Finally, we show that polar growth also occurs in the closely related bacteria Sinorhizobium meliloti, Brucella abortus, and Ochrobactrum anthropi. We find that unipolar growth is an ancestral and conserved trait among the Rhizobiales, which includes important mutualists and pathogens of plants and animals.

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JO - Proceedings of the National Academy of Sciences of the United States of America

JF - Proceedings of the National Academy of Sciences of the United States of America

SN - 0027-8424

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