Cold induced changes in the water balance affect immunocytolocalization pattern of one of the aquaporins in the vascular system in the leaves of maize (Zea mays L.)

Bibliographische Detailangaben
Veröffentlicht in:	Journal of plant physiology. - 1979. - 205(2016) vom: 20. Okt., Seite 75-79
1. Verfasser:	Bilska-Kos, Anna (VerfasserIn)
Weitere Verfasser:	Szczepanik, Jarosław, Sowiński, Paweł
Format:	Online-Aufsatz
Sprache:	English
Veröffentlicht:	2016
Zugriff auf das übergeordnete Werk:	Journal of plant physiology
Schlagworte:	Journal Article Aquaporins Chilling stress Immunogold Thick-walled sieve tubes Water potential Zea mays Plant Proteins Water 059QF0KO0R

Beschreibung
Zusammenfassung:	Copyright © 2016 Elsevier GmbH. All rights reserved. Chilling stress is known to affect the water balance in plants, which often manifests itself in the decrease of the water potential in different organs. Relationships between chilling, assimilate transport and water balance are far from being understood. Although aquaporins play a key role in regulating water balance in plants, especially under stress conditions, the role of individual aquaporins in stress response remains unclear. In this report we show the specific localization within plasma membranes of one of the aquaporins (PIP2;3) in the leaves of two maize inbred lines differing in their chilling-sensitivity. This form of aquaporin has been also observed in thick-walled sieve elements - an additional type of sieve tubes of unclear function found only in monocotyledons. Moderate chilling (about 15°C) caused significant reduction of labelling in these cells accompanied by a steep decrease in the water potential in leaves of chilling-sensitive maize line. Our results suggest that both PIP2;3 and thick-walled sieve tubes may be an unknown element of the mechanism of the response of maize to cold stress
Beschreibung:	Date Completed 24.04.2017 Date Revised 30.09.2020 published: Print-Electronic Citation Status MEDLINE
ISSN:	1618-1328
DOI:	10.1016/j.jplph.2016.08.006