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Statements

Subject Item
n2:RIV%2F00216208%3A11310%2F12%3A10124874%21RIV13-GA0-11310___
rdf:type
skos:Concept n11:Vysledek
rdfs:seeAlso
http://www.sciencedirect.com/science/article/pii/S0981942812002094
dcterms:description
Aluminum (Al) toxicity is the main limiting factor in crop production on acid soils. The main symptom of Al toxicity is a rapid inhibition of root growth, but the mechanism of root growth cessation remains unclear. Here we examined the earliest changes in the plasma membrane and processes related to the membrane in the Arabidopsis thaliana root tip cells of roots grown in a hydropony. Al suppressed root growth within 2 min, inhibited endocytosis within 10 min of exposure and stabilized cortical microtubules within the first 30 min. Spectrofluorometric measurements of the plasma membrane isolated from Arabidopsis plants and labeled with the fluorescent probe laurdan showed that Al induced a reduction in membrane fluidity. Application of the membrane fluidizer, benzyl alcohol, restored partially membrane fluidity and also partially restored root growth during first 30 min of Al treatment. We concluded that Al-induced loss of membrane fluidity and endocytosis inhibition occurred very early during Al toxicity in plant roots and could be the earliest targets of Al treatment. Aluminum (Al) toxicity is the main limiting factor in crop production on acid soils. The main symptom of Al toxicity is a rapid inhibition of root growth, but the mechanism of root growth cessation remains unclear. Here we examined the earliest changes in the plasma membrane and processes related to the membrane in the Arabidopsis thaliana root tip cells of roots grown in a hydropony. Al suppressed root growth within 2 min, inhibited endocytosis within 10 min of exposure and stabilized cortical microtubules within the first 30 min. Spectrofluorometric measurements of the plasma membrane isolated from Arabidopsis plants and labeled with the fluorescent probe laurdan showed that Al induced a reduction in membrane fluidity. Application of the membrane fluidizer, benzyl alcohol, restored partially membrane fluidity and also partially restored root growth during first 30 min of Al treatment. We concluded that Al-induced loss of membrane fluidity and endocytosis inhibition occurred very early during Al toxicity in plant roots and could be the earliest targets of Al treatment.
dcterms:title
Loss of membrane fluidity and endocytosis inhibition are involved in rapid aluminum-induced root growth cessation in Arabidopsis thaliana Loss of membrane fluidity and endocytosis inhibition are involved in rapid aluminum-induced root growth cessation in Arabidopsis thaliana
skos:prefLabel
Loss of membrane fluidity and endocytosis inhibition are involved in rapid aluminum-induced root growth cessation in Arabidopsis thaliana Loss of membrane fluidity and endocytosis inhibition are involved in rapid aluminum-induced root growth cessation in Arabidopsis thaliana
skos:notation
RIV/00216208:11310/12:10124874!RIV13-GA0-11310___
n11:predkladatel
n12:orjk%3A11310
n3:aktivita
n4:S n4:P n4:I n4:Z
n3:aktivity
I, P(GA522/05/0340), P(GPP207/12/P890), S, Z(AV0Z50380511), Z(MSM0021620858)
n3:cisloPeriodika
listopad
n3:dodaniDat
n13:2013
n3:domaciTvurceVysledku
n9:9607463 n9:1707094 n9:8246610 n9:6040063 n9:7015755
n3:druhVysledku
n22:J
n3:duvernostUdaju
n19:S
n3:entitaPredkladatele
n18:predkladatel
n3:idSjednocenehoVysledku
147466
n3:idVysledku
RIV/00216208:11310/12:10124874
n3:jazykVysledku
n7:eng
n3:klicovaSlova
Root growth; Plasma membrane fluidity; Endocytosis; Cortical microtubules; Arabidopsis thaliana; Aluminum toxicity
n3:klicoveSlovo
n10:Root%20growth n10:Endocytosis n10:Aluminum%20toxicity n10:Cortical%20microtubules n10:Arabidopsis%20thaliana n10:Plasma%20membrane%20fluidity
n3:kodStatuVydavatele
NL - Nizozemsko
n3:kontrolniKodProRIV
[4E125D739CFB]
n3:nazevZdroje
Plant Physiology and Biochemistry
n3:obor
n6:EA
n3:pocetDomacichTvurcuVysledku
5
n3:pocetTvurcuVysledku
8
n3:projekt
n14:GA522%2F05%2F0340 n14:GPP207%2F12%2FP890
n3:rokUplatneniVysledku
n13:2012
n3:svazekPeriodika
60
n3:tvurceVysledku
Havelková, Lenka Fišer, Radovan Krtková, Jana Martinec, Jan Křepelová, Anna Schwarzerová, Kateřina Novotná, Zuzana Vosolsobě, Stanislav
n3:wos
000310387400012
n3:zamer
n8:AV0Z50380511 n8:MSM0021620858
s:issn
0981-9428
s:numberOfPages
10
n16:doi
10.1016/j.plaphy.2012.07.030
n15:organizacniJednotka
11310