Molecular analysis of endo-beta-mannanase genes upon seed imbibition suggest a cross-talk between radicle and micropylar endosperm during germination of Arabidopsis thaliana

Iglesias Fernandez, Raquel and Rodriguez Gacio, Maria del Carmen and Barrero Sicilia, Cristina and Carbonero Zalduegui, Pilar and Matilla, Angel J. (2011). Molecular analysis of endo-beta-mannanase genes upon seed imbibition suggest a cross-talk between radicle and micropylar endosperm during germination of Arabidopsis thaliana. "Plant Signalling and Behaviour", v. 6 (n. 1); pp. 80-82. ISSN 1559-2324. https://doi.org/10.4161/psb.6.1.14126.

Description

Title: Molecular analysis of endo-beta-mannanase genes upon seed imbibition suggest a cross-talk between radicle and micropylar endosperm during germination of Arabidopsis thaliana
Author/s:
  • Iglesias Fernandez, Raquel
  • Rodriguez Gacio, Maria del Carmen
  • Barrero Sicilia, Cristina
  • Carbonero Zalduegui, Pilar
  • Matilla, Angel J.
Item Type: Article
Título de Revista/Publicación: Plant Signalling and Behaviour
Date: January 2011
ISSN: 1559-2324
Volume: 6
Subjects:
Faculty: E.T.S.I. Agrónomos (UPM) [antigua denominación]
Department: Biotecnologia [hasta 2014]
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

The endo-β-mannanase (MAN) family is represented in the Arabidopsis genome by eight members, all with canonical signal peptides and only half of them being expressed in germinating seeds. The transcripts of these genes were localized in the radicle and micropylar endosperm (ME) before radicle protrusion and this expression disappears as soon as the endosperm is broken by the emerging radicle tip. However, only three of these MAN genes, AtMAN5, AtMAN7 and especially AtMAN6 influence the germination time (t50) as assessed by the analysis of the corresponding knock-out lines. The data suggest a possible interaction between embryo and ME regarding the role of MAN during the Arabidopsis germination process. Iglesias-Fernández R, Rodríguez-Gacio MC, Barrero-Sicilia C, Carbonero P, Matilla A.J. Three endo-β-mannanase genes expressed in the micropylar endosperm and in the radicle influence germination of Arabidopsis thaliana seeds

More information

Item ID: 8232
DC Identifier: http://oa.upm.es/8232/
OAI Identifier: oai:oa.upm.es:8232
DOI: 10.4161/psb.6.1.14126
Official URL: http://www.tandfonline.com/doi/full/10.4161/psb.6.1.14126
Deposited by: Memoria Investigacion
Deposited on: 03 Jan 2012 12:17
Last Modified: 17 Jan 2017 08:22
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