Root hair sweet growth
Root hairs are single cells specializedin the absorption of water andnutrients from the soil. Growing roothairs require intensive cell-wall changesto accommodate cell expansion at theapical end by a process known as tipor polarized growth. We have recentlyshown that cell wall glycoproteins suchas ex...
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| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_15592316_v6_n10_p1600_Velasquez |
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todo:paper_15592316_v6_n10_p1600_Velasquez2023-10-03T16:26:13Z Root hair sweet growth Velasquez, S.M. Iusem, N.D. Estevez, J.M. Cell wall Extensins O-glycoproteins P4H Polarized growth Proline hydroxylation Root hairs extensin protein, plant glycoprotein procollagen proline 2 oxoglutarate 4 dioxygenase vegetable protein Arabidopsis article cell enlargement cell wall cytology glycosylation growth, development and aging hydroxylation metabolism phenotype plant root Arabidopsis Cell Enlargement Cell Wall Glycoproteins Glycosylation Hydroxylation Phenotype Plant Proteins Plant Roots Procollagen-Proline Dioxygenase Root hairs are single cells specializedin the absorption of water andnutrients from the soil. Growing roothairs require intensive cell-wall changesto accommodate cell expansion at theapical end by a process known as tipor polarized growth. We have recentlyshown that cell wall glycoproteins suchas extensins (EXTs) are essential componentsof the cell wall during polarizedgrowth. Proline hydroxylation, anearly posttranslational modification ofcell wall EXTs that is catalyzed by prolyl4-hydroxylases (P4Hs), defines the subsequentO-glycosylation sites in EXTs.Biochemical inhibition or genetic disruptionof specific P4Hs resulted in theblockage of polarized growth in roothairs. Our results demonstrate thatcorrect hydroxylation and also furtherO-glycosylation on EXTs are essentialfor cell-wall self-assembly and, hence,root hair elongation. The changes thatO-glycosylated cell-wall proteins likeEXTs undergo during cell growth representa starting point to unravel the entirebiochemical pathway involved in plantdevelopment. © 2011 Landes Bioscience. Fil:Velasquez, S.M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Iusem, N.D. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Estevez, J.M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_15592316_v6_n10_p1600_Velasquez |
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Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Cell wall Extensins O-glycoproteins P4H Polarized growth Proline hydroxylation Root hairs extensin protein, plant glycoprotein procollagen proline 2 oxoglutarate 4 dioxygenase vegetable protein Arabidopsis article cell enlargement cell wall cytology glycosylation growth, development and aging hydroxylation metabolism phenotype plant root Arabidopsis Cell Enlargement Cell Wall Glycoproteins Glycosylation Hydroxylation Phenotype Plant Proteins Plant Roots Procollagen-Proline Dioxygenase |
| spellingShingle |
Cell wall Extensins O-glycoproteins P4H Polarized growth Proline hydroxylation Root hairs extensin protein, plant glycoprotein procollagen proline 2 oxoglutarate 4 dioxygenase vegetable protein Arabidopsis article cell enlargement cell wall cytology glycosylation growth, development and aging hydroxylation metabolism phenotype plant root Arabidopsis Cell Enlargement Cell Wall Glycoproteins Glycosylation Hydroxylation Phenotype Plant Proteins Plant Roots Procollagen-Proline Dioxygenase Velasquez, S.M. Iusem, N.D. Estevez, J.M. Root hair sweet growth |
| topic_facet |
Cell wall Extensins O-glycoproteins P4H Polarized growth Proline hydroxylation Root hairs extensin protein, plant glycoprotein procollagen proline 2 oxoglutarate 4 dioxygenase vegetable protein Arabidopsis article cell enlargement cell wall cytology glycosylation growth, development and aging hydroxylation metabolism phenotype plant root Arabidopsis Cell Enlargement Cell Wall Glycoproteins Glycosylation Hydroxylation Phenotype Plant Proteins Plant Roots Procollagen-Proline Dioxygenase |
| description |
Root hairs are single cells specializedin the absorption of water andnutrients from the soil. Growing roothairs require intensive cell-wall changesto accommodate cell expansion at theapical end by a process known as tipor polarized growth. We have recentlyshown that cell wall glycoproteins suchas extensins (EXTs) are essential componentsof the cell wall during polarizedgrowth. Proline hydroxylation, anearly posttranslational modification ofcell wall EXTs that is catalyzed by prolyl4-hydroxylases (P4Hs), defines the subsequentO-glycosylation sites in EXTs.Biochemical inhibition or genetic disruptionof specific P4Hs resulted in theblockage of polarized growth in roothairs. Our results demonstrate thatcorrect hydroxylation and also furtherO-glycosylation on EXTs are essentialfor cell-wall self-assembly and, hence,root hair elongation. The changes thatO-glycosylated cell-wall proteins likeEXTs undergo during cell growth representa starting point to unravel the entirebiochemical pathway involved in plantdevelopment. © 2011 Landes Bioscience. |
| format |
JOUR |
| author |
Velasquez, S.M. Iusem, N.D. Estevez, J.M. |
| author_facet |
Velasquez, S.M. Iusem, N.D. Estevez, J.M. |
| author_sort |
Velasquez, S.M. |
| title |
Root hair sweet growth |
| title_short |
Root hair sweet growth |
| title_full |
Root hair sweet growth |
| title_fullStr |
Root hair sweet growth |
| title_full_unstemmed |
Root hair sweet growth |
| title_sort |
root hair sweet growth |
| url |
http://hdl.handle.net/20.500.12110/paper_15592316_v6_n10_p1600_Velasquez |
| work_keys_str_mv |
AT velasquezsm roothairsweetgrowth AT iusemnd roothairsweetgrowth AT estevezjm roothairsweetgrowth |
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1807324672099876864 |