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AtbZIP34 is required for Arabidopsis pollen wall patterning and the control of several metabolic pathways in developing pollen

SYSNO ASEP	0328460
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	AtbZIP34 is required for Arabidopsis pollen wall patterning and the control of several metabolic pathways in developing pollen
Title	AtbZIP34 je zodpovědný za formování struktury buněčné stěny aza kontrolu několika metabolických drah vyvíjejícího se pylového zrna huseníčku
Author(s)	Gibalová, Antónia (UEB-Q) Reňák, David (UEB-Q)_RID Matczuk, Katarzyna (UEB-Q) Dupľáková, Nikoleta (UEB-Q)_RID Cháb, David (UEB-Q) Twell, D. (GB) Honys, David (UEB-Q)_{RID, ORCID}
Source Title	Plant Molecular Biology. - : Springer - ISSN 0167-4412 Roč. 70, č. 5 (2009), s. 581-601
Number of pages	21 s.
Language	eng - English
Country	NL - Netherlands
Keywords	bZIP transcription factor ; AtbZIP34 ; Male gametophyte development
Subject RIV	EB - Genetics ; Molecular Biology
R&D Projects	GA522/06/0896 GA ČR - Czech Science Foundation (CSF)
	GA522/09/0858 GA ČR - Czech Science Foundation (CSF)
	LC06004 GA MŠMT - Ministry of Education, Youth and Sports (MEYS)
CEZ	AV0Z50380511 - UEB-Q (2005-2011)
UT WOS	000267110000008
DOI	10.1007/s11103-009-9493-y
Annotation	We report the functional characterization of Arabidopsis thaliana AtbZIP34 that is expressed in both gametophytic and surrounding sporophytic tissues during flower development. T-DNA insertion mutants in AtbZIP34 show pollen morphological defects that result in reduced pollen germination efficiency and slower tube growth both in vitro and in vivo. Light and fluorescence microscopy revealed misshapen and misplaced nuclei with large lipid inclusions in the cytoplasm of atbzip34 pollen. Scanning and transmission electron microscopy revealed defects in exine shape and micropatterning and a reduced endomembrane system. Several lines of evidence, including the AtbZIP34 expression pattern and the phenotypic defects observed, suggest a complex role in male reproductive development that involves a sporophytic role in exine patterning, and a sporophytic and/or gametophytic mode of action of AtbZIP34 in several metabolic pathways, namely regulation of lipid metabolism and/or cellular transport.
Workplace	Institute of Experimental Botany
Contact	David Klier, knihovna@ueb.cas.cz, Tel.: 220 390 469
Year of Publishing	2010

Number of the records: 1