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| DOI | 10.1073/PNAS.2320470121 | ||||
| Año | 2024 | ||||
| Tipo | artículo de investigación |
Citas Totales
Autores Afiliación Chile
Instituciones Chile
% Participación
Internacional
Autores
Afiliación Extranjera
Instituciones
Extranjeras
Although the formation of new walls during plant cell division tends to follow maximal tensile stress direction, analyses of individual cells over time reveal a much more variable behavior. The origin of such variability as well as the exact role of interphasic micro- tubule behavior before cell division have remained mysterious so far. To approach this question, we took advantage of the Arabidopsis stem, where the tensile stress pattern is both highly anisotropic and stable. Although cortical microtubules (CMTs) generally align with maximal tensile stress, we detected a specific time window, ca. 3 h before cell division, where cells form a radial pattern of CMTs. This microtubule array organization preceded preprophase band (PPB) formation, a transient CMT array predicting the position of the future division plane. It was observed under different growth conditions and was not related to cell geometry or polar auxin transport. Interestingly, this cortical radial pattern correlated with the well-- documented increase of cytoplasmic microtubule accumulation before cell division. This radial organization was prolonged in cells of the trm678 mutant, where CMTs are unable to form a PPB. Whereas division plane orientation in trm678 is noisier, we found that cell division symmetry was in contrast less variable between daughter cells. We propose that this "radial step" reflects a trade- off in robustness for two essential cell division attributes: symmetry and orientation. This involves a "reset" stage in G2, where an increased cytoplasmic microtubule accumulation transiently disrupts CMT alignment with tissue stress.
| Revista | ISSN |
|---|---|
| Proceedings Of The National Academy Of Sciences Of The United States Of America | 0027-8424 |
| Ord. | Autor | Género | Institución - País |
|---|---|---|---|
| 1 | Melogno, Isaty | - |
Univ Lyon - Francia
Ecole Normale Supérieure de Lyon - Francia |
| 2 | Takatani, Shogo | - |
Univ Lyon - Francia
Nagoya Univ - Japón Ecole Normale Supérieure de Lyon - Francia Nagoya University - Japón |
| 3 | Llanos, Paula | - |
Universidad Adolfo Ibáñez - Chile
|
| 4 | Goncalves, Coralie | - |
Univ Paris Saclay - Francia
Universite Paris-Saclay - Francia |
| 5 | Kodera, Chie | - |
Univ Paris Saclay - Francia
Universite Paris-Saclay - Francia |
| 6 | Martin, Marjolaine | - |
Univ Lyon - Francia
Ecole Normale Supérieure de Lyon - Francia |
| 7 | Lionnet, Claire | - |
Univ Lyon - Francia
Ecole Normale Supérieure de Lyon - Francia |
| 8 | Uyttewaal, Magalie | - |
Univ Paris Saclay - Francia
Universite Paris-Saclay - Francia |
| 9 | Pastuglia, Martine | - |
Univ Paris Saclay - Francia
Universite Paris-Saclay - Francia |
| 10 | Trehin, Christophe | - |
Univ Lyon - Francia
Ecole Normale Supérieure de Lyon - Francia |
| 11 | Bouchez, David | Hombre |
Universite Paris-Saclay - Francia
|
| 12 | Dumais, J. | Hombre |
Universidad Adolfo Ibáñez - Chile
|
| 13 | Hamant, Olivier | Hombre |
Univ Lyon - Francia
Ecole Normale Supérieure de Lyon - Francia |
| Fuente |
|---|
| FONDECYT |
| Fondo Nacional de Desarrollo Científico y Tecnológico |
| European Union |
| European Research Council |
| Seventh Framework Programme |
| European Research Council (ERC) |
| Human Frontier Science Program |
| Saclay Plant Sciences-SPS |
| AgreenSkills+ fellowship program |
| Human Frontier Science Program Grant |
| Human Frontier Science Program Long-Term-Fellowship |
| Institut Jean-Pierre Bourgin |
| Reproduction et Développement des Plantes |
| Agradecimiento |
|---|
| We thank the MechanoDevo team at the RDP (Reproduction et Developpement des Plantes) lab for insightful discussion, and Platim for help with imaging. This work was supported by a Human Frontier Science Program Long-Term-Fellowship (LT000891/2018-L to S.T.) , by the European Research Council (ERC- 2021-AdG- 101019515 "Musix" to O.H.) and by Human Frontier Science Program Grant RGP0023/2018. This work was also supported by the AgreenSkills+ fellowship program, which has received funding from the European Union's Seventh FrameworkProgram under Grant Agreement FP7- 609398 (AgreenSkills+ contract to ST) . This work has benefited from the support of IJPB's Plant Observatory technological platforms. The IJPB (Institut Jean- Pierre Bourgin) benefits from the support of Saclay Plant Sciences- SPS (ANR-17-EUR-0007) . J.D. and P.L. acknowledge support from Fondecyt 1211568. |
| ACKNOWLEDGMENTS. We thank the MechanoDevo team at the RDP (Reproduction et D\u00E9veloppement des Plantes) lab for insightful discussion, and Platim for help with imaging. This work was supported by a Human Frontier Science Program Long-Term-Fellowship (LT000891/2018-L to S.T.), by the European Research Council (ERC-2021-AdG-101019515 \u201CMusix\u201D to O.H.) and by Human Frontier Science Program Grant RGP0023/2018. This work was also supported by the AgreenSkills+ fellowship program, which has received funding from the European Union's Seventh FrameworkProgram under Grant Agreement FP7-609398 (AgreenSkills+ contract to ST). This work has benefited from the support of IJPB's Plant Observatory technological platforms. The IJPB (Institut Jean-Pierre Bourgin) benefits from the support of Saclay Plant Sciences-SPS (ANR-17-EUR-0007).J.D.and P.L.acknowledge support from Fondecyt 1211568. |
| ACKNOWLEDGMENTS. We thank the MechanoDevo team at the RDP (Reproduction et D\u00E9veloppement des Plantes) lab for insightful discussion, and Platim for help with imaging. This work was supported by a Human Frontier Science Program Long-Term-Fellowship (LT000891/2018-L to S.T.), by the European Research Council (ERC-2021-AdG-101019515 \u201CMusix\u201D to O.H.) and by Human Frontier Science Program Grant RGP0023/2018. This work was also supported by the AgreenSkills+ fellowship program, which has received funding from the European Union's Seventh FrameworkProgram under Grant Agreement FP7-609398 (AgreenSkills+ contract to ST). This work has benefited from the support of IJPB's Plant Observatory technological platforms. The IJPB (Institut Jean-Pierre Bourgin) benefits from the support of Saclay Plant Sciences-SPS (ANR-17-EUR-0007).J.D.and P.L.acknowledge support from Fondecyt 1211568. |