Artículo

Velasquez, S.M.; Iusem, N.D.; Estevez, J.M. "Root hair sweet growth" (2011) Plant Signaling and Behavior. 6(10):1600-1602
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Abstract:

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.

Registro:

Documento: Artículo
Título:Root hair sweet growth
Autor:Velasquez, S.M.; Iusem, N.D.; Estevez, J.M.
Filiación:Instituto de Fisiología; Biología Molecular y Neurociencias (IFIByNE-CONICET), Departamento de Fisiología Biología Molecular y Celular, Facultad de Ciencias Exactas y Naturales; Universidad de Buenos Aires, Buenos Aires, Argentina
Laboratorio de Fisiología y Biología Molecular (LFBM), Departamento de Fisiología Biología Molecular y Celular, Facultad de Ciencias Exactas y Naturales; Universidad de Buenos Aires, Buenos Aires, Argentina
Palabras clave: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
Año:2011
Volumen:6
Número:10
Página de inicio:1600
Página de fin:1602
DOI: http://dx.doi.org/10.4161/psb.6.10.17135
Título revista:Plant Signaling and Behavior
Título revista abreviado:Plant. Signal. Behav.
ISSN:15592316
CAS:procollagen proline 2 oxoglutarate 4 dioxygenase, 9028-06-2; Glycoproteins; Plant Proteins; Procollagen-Proline Dioxygenase, 1.14.11.2; extensin protein, plant
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_15592316_v6_n10_p1600_Velasquez

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Citas:

---------- APA ----------
Velasquez, S.M., Iusem, N.D. & Estevez, J.M. (2011) . Root hair sweet growth. Plant Signaling and Behavior, 6(10), 1600-1602.
http://dx.doi.org/10.4161/psb.6.10.17135
---------- CHICAGO ----------
Velasquez, S.M., Iusem, N.D., Estevez, J.M. "Root hair sweet growth" . Plant Signaling and Behavior 6, no. 10 (2011) : 1600-1602.
http://dx.doi.org/10.4161/psb.6.10.17135
---------- MLA ----------
Velasquez, S.M., Iusem, N.D., Estevez, J.M. "Root hair sweet growth" . Plant Signaling and Behavior, vol. 6, no. 10, 2011, pp. 1600-1602.
http://dx.doi.org/10.4161/psb.6.10.17135
---------- VANCOUVER ----------
Velasquez, S.M., Iusem, N.D., Estevez, J.M. Root hair sweet growth. Plant. Signal. Behav. 2011;6(10):1600-1602.
http://dx.doi.org/10.4161/psb.6.10.17135