tonoplast

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tonoplast

 [ton´o-plast]
the limiting membrane of an intracellular vacuole; the vacuole membrane.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

ton·o·plast

(tōn'ō-plast, ton'ō-),
An intracellular structure or vacuole.
[tono- + G. plastos, formed]
Farlex Partner Medical Dictionary © Farlex 2012

tonoplast

(tō′nə-plăst′)
n.
The cytoplasmic membrane that surrounds a vacuole of a plant cell. Also called vacuolar membrane.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

ton·o·plast

(tō'nō-plast)
An intracellular structure or vacuole.
[tono- + G. plastos, formed]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

tonoplast

the CELL MEMBRANE surrounding the vacuole in the cytoplasm of a plant cell controlling movements of ions into and out of the vacuole. see SELECTIVE PERMEABILITY.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005
References in periodicals archive ?
Potential ESTs from the MIP gene superfamily were identified using the keywords "aquaporin," "major intrinsic protein," "PIP," "TIP," "PIN," "SIP" "plasma membrane intrinsic protein" "tonoplast intrinsic protein," "nodulin-26-like intrinsic protein" and "small basic intrinsic protein" in the EST annotations, or "water transporter" in the GO terms.
The keyword ("aquaporin," "major intrinsic protein" "tonoplast intrinsic protein" "plasma membrane intrinsic protein" "small basic intrinsic protein" "nodulin-26-like intrinsic protein," "PIP," "TIP," "NIP," "SIP") searches in the EST annotation identified 1,347 ESTs, while the "water transport" GO expression identified 342 ESTs (Figure 1).
Activated SOS2 kinase regulates sodium efflux and sequestration of sodium into the vacuole by activating [Na.sup.+]/[H.sup.+] antiporters of plasma membrane and tonoplast, respectively.