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Statements

Subject Item
n2:RIV%2F00216208%3A11310%2F14%3A10281650%21RIV15-MSM-11310___
rdf:type
n6:Vysledek skos:Concept
rdfs:seeAlso
http://dx.doi.org/10.1111/pce.12186
dcterms:description
Heat shock transcription factors (Hsfs) are involved in multiple aspects of stress response and plant growth. However, their role during male gametophyte development is largely unknown, although the generative phase is the most sensitive and critical period in the plant life cycle. Based on a wide screen of T-DNA mutant lines, we identified the atren1 mutation (restricted to nucleolus1) in early male gametophytic gene At1g77570, which has the closest homology to HSFA5 gene, the member of a heat shock transcription factor (HSF) gene family. The mutation causes multiple defects in male gametophyte development in both structure and function. Because the mutation disrupts an early acting (AtREN1) gene, these pollen phenotype abnormalities appear from bicellular pollen stage to pollen maturation. Moreover, the consequent progamic phase is compromised as well as documented by pollen germination defects and limited transmission via male gametophyte. In addition, atren1/- plants are defective in heat stress (HS) response and produce notably higher proportion of aberrant pollen grains. AtREN1 protein is targeted specifically to the nucleolus that, together with the increased size of the nucleolus in atren1 pollen, suggests that it is likely to be involved in ribosomal RNA biogenesis or other nucleolar functions. Heat shock transcription factors (Hsfs) are involved in multiple aspects of stress response and plant growth. However, their role during male gametophyte development is largely unknown, although the generative phase is the most sensitive and critical period in the plant life cycle. Based on a wide screen of T-DNA mutant lines, we identified the atren1 mutation (restricted to nucleolus1) in early male gametophytic gene At1g77570, which has the closest homology to HSFA5 gene, the member of a heat shock transcription factor (HSF) gene family. The mutation causes multiple defects in male gametophyte development in both structure and function. Because the mutation disrupts an early acting (AtREN1) gene, these pollen phenotype abnormalities appear from bicellular pollen stage to pollen maturation. Moreover, the consequent progamic phase is compromised as well as documented by pollen germination defects and limited transmission via male gametophyte. In addition, atren1/- plants are defective in heat stress (HS) response and produce notably higher proportion of aberrant pollen grains. AtREN1 protein is targeted specifically to the nucleolus that, together with the increased size of the nucleolus in atren1 pollen, suggests that it is likely to be involved in ribosomal RNA biogenesis or other nucleolar functions.
dcterms:title
A new link between stress response and nucleolar function during pollen development in Arabidopsis mediated by AtREN1 protein A new link between stress response and nucleolar function during pollen development in Arabidopsis mediated by AtREN1 protein
skos:prefLabel
A new link between stress response and nucleolar function during pollen development in Arabidopsis mediated by AtREN1 protein A new link between stress response and nucleolar function during pollen development in Arabidopsis mediated by AtREN1 protein
skos:notation
RIV/00216208:11310/14:10281650!RIV15-MSM-11310___
n3:aktivita
n4:S n4:P n4:I
n3:aktivity
I, P(GAP305/12/2611), P(GAP501/11/1462), P(LD11018), P(LD13049), S
n3:cisloPeriodika
3
n3:dodaniDat
n13:2015
n3:domaciTvurceVysledku
n5:5468582 n5:6889301
n3:druhVysledku
n10:J
n3:duvernostUdaju
n20:S
n3:entitaPredkladatele
n7:predkladatel
n3:idSjednocenehoVysledku
906
n3:idVysledku
RIV/00216208:11310/14:10281650
n3:jazykVysledku
n9:eng
n3:klicovaSlova
pollen; nucleolus; male gametophyte development; heat shock transcription factor; heat shock response
n3:klicoveSlovo
n18:pollen n18:male%20gametophyte%20development n18:nucleolus n18:heat%20shock%20response n18:heat%20shock%20transcription%20factor
n3:kodStatuVydavatele
GB - Spojené království Velké Británie a Severního Irska
n3:kontrolniKodProRIV
[FA7249295B7F]
n3:nazevZdroje
Plant, Cell and Environment
n3:obor
n8:ED
n3:pocetDomacichTvurcuVysledku
2
n3:pocetTvurcuVysledku
4
n3:projekt
n11:LD13049 n11:LD11018 n11:GAP305%2F12%2F2611 n11:GAP501%2F11%2F1462
n3:rokUplatneniVysledku
n13:2014
n3:svazekPeriodika
37
n3:tvurceVysledku
Honys, David Reňák, David Gibalová, Antónia Solcova, Katarzyna
n3:wos
000329918100010
s:issn
0140-7791
s:numberOfPages
14
n16:doi
10.1111/pce.12186
n17:organizacniJednotka
11310