Arabidopsis pollen extensins LRX are required for cell wall integrity during pollen tube growth

descriptionPublicationkeyboard_double_arrow_right Article , Conference object 01 Jan 2018 Argentina English Publisher:WileyJournal:FEBS Letters, volume 592, pages 233-243 (issn: 0014-5793, eissn: 1873-3468,

Copyright policy )

Authors: Ana R. Sede; Cecilia Borassi; Diego L. Wengier; Martín A. Mecchia; José M. Estevez; Jorge P. Muschietti;

doi: 10.1002/1873-3468.12947

pmid: 29265366

handle: 10261/248023 , 11336/127712 , 11336/215626

Arabidopsis pollen extensins LRX are required for cell wall integrity during pollen tube growth

- Summary
- Subjects
- Metrics

Abstract

Proper cell wall assembly is crucial during pollen tube growth. Leucine‐rich repeat extensins (LRXs) are extracellular glycoproteins which belong to the hydroxyproline‐rich glycoprotein (HRGP) family. They contain a conserved N‐terminal leucine‐rich repeat (LRR) domain and a highly variable C‐terminal extensin domain. Here, we characterized four LRX proteins (LRX8 through LRX11) from pollen of Arabidopsis thaliana. To investigate the role of LRX8‐LRX11 in pollen germination and pollen tube growth, multiple T‐DNA lrx mutants were obtained. The lrx mutants display abnormal pollen tubes with an irregular deposition of callose and pectin. They also show serious alterations in pollen germination and segregation ratio. Our results suggest that LRXs are involved in ensuring proper cell wall assembly during pollen tube growth.

Country

Argentina

Related Organizations

National Scientific and Technical Research Council
Argentina
University of Buenos Aires
Argentina
Facultad de Ciencias Agrarias y Forestales
Argentina
Fundación Instituto Leloir
Argentina

Keywords

POLARIZED GROWTH, POLLEN TUBE, Arabidopsis, Germination, Pollen Tube, CALLOSE, LRX, PECTIN, Pollen tube, Cell Wall, Gene Expression Regulation, Plant, https://purl.org/becyt/ford/1.6, EXTENSIN, Cloning, Molecular, https://purl.org/becyt/ford/1, CELL WALL, Glucans, Glycoproteins, Plant Proteins, Cell wall, Gene Expression Regulation, Developmental, Polarized growth, Mutagenesis, Insertional, Extensin, Pectins

Impact byBIP!

	selected citations These citations are derived from selected sources. This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).	87
	popularity This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.	Top 1%
	influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).	Top 10%
	impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.	Top 1%