PIP1 aquaporins are concentrated in plasmalemmasomes of Arabidopsis thaliana mesophyll

The PIP1 subfamily of water channel proteins (aquaporins) constitute about 1% of the plasma membrane (PM) proteins from Arabidopsis thaliana leaves. Immunogold electron microscopy has confirmed their localization at the PM of mesophyll cells. Very high labeling density at PM invaginations known as p...

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Veröffentlicht in:	Plant physiology (Bethesda) 1996-06, Vol.111 (2), p.645-649
Hauptverfasser:	Robinson, D.G. (Universitat Gottingen, Gottingen, Germany.), Sieber, H, Kammerloher, W, Schaffner, A.R
Format:	Artikel
Sprache:	eng
Schlagworte:	ABSORCION DE AGUA ABSORPTION D'EAU Analytical, structural and metabolic biochemistry Antibodies Aquaporins ARABIDOPSIS THALIANA Biological and medical sciences Cell membranes COMPOSICION QUIMICA COMPOSITION CHIMIQUE ESTRUCTURA CELULAR FISIOLOGIA VEGETAL Fundamental and applied biological sciences. Psychology IMMUNOLOGIE INMUNOLOGIA MESOFILO Mesophyll Mesophyll cells MESOPHYLLE Miscellaneous PHYSIOLOGIE VEGETALE Plant cells PROTEINAS PROTEINE Proteins Rapid Communications STRUCTURE CELLULAIRE Tonoplast ULTRAESTRUCTURA ULTRASTRUCTURE Vacuoles Water channels
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Zusammenfassung:	The PIP1 subfamily of water channel proteins (aquaporins) constitute about 1% of the plasma membrane (PM) proteins from Arabidopsis thaliana leaves. Immunogold electron microscopy has confirmed their localization at the PM of mesophyll cells. Very high labeling density at PM invaginations known as plasmalemmasomes was observed. Therefore, we suggest that these subcellular structures are involved in water transport between the apoplast and the vacuole
ISSN:	0032-0889 1532-2548
DOI:	10.1104/pp.111.2.645