PIP1 Aquaporins Are Concentrated in Plasmalemmasomes of Arabidopsis thaliana Mesophyll | Zendy

David G. Robinson | Zendy; H. Sieber | Zendy; Werner Kammerloher | Zendy; Anthony R. Schäffner | Zendy

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PIP1 Aquaporins Are Concentrated in Plasmalemmasomes of Arabidopsis thaliana Mesophyll

Author(s) -

David G. Robinson,

H. Sieber,

Werner Kammerloher,

Anthony R. Schäffner

Publication year - 1996

Publication title -

plant physiology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 3.554

H-Index - 312

eISSN - 1532-2548

pISSN - 0032-0889

DOI - 10.1104/pp.111.2.645

Subject(s) - aquaporin , apoplast , arabidopsis thaliana , immunogold labelling , vacuole , subcellular localization , microbiology and biotechnology , arabidopsis , biology , xylem , protein subcellular localization prediction , subfamily , biophysics , chemistry , botany , ultrastructure , biochemistry , cytoplasm , cell wall , gene , mutant

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.

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