Plant Cell Drug Metab Dispos
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

This Article
Right arrow Full Text
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in ISI Web of Science
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow reprints & permissions
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via CrossRef
Right arrow Citing Articles via ISI Web of Science (65)
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Nelson, D. E.
Right arrow Articles by Bohnert, H. J.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Nelson, D. E.
Right arrow Articles by Bohnert, H. J.
Agricola
Right arrow Articles by Nelson, D. E.
Right arrow Articles by Bohnert, H. J.
Plant Cell, Vol. 10, 753-764, May 1998, Copyright © 1998, American Society of Plant Physiologists

Regulation of Cell-Specific Inositol Metabolism and Transport in Plant Salinit y Tolerance

Donald E. Nelsona, Gerald Rammesmayera, and Hans J. Bohnerta,b,c
a Department of Biochemistry, University of Arizona, Tucson, Arizona 85721
b Department of Plant Sciences, University of Arizona, Tucson, Arizona 85721
c Department of Molecular and Cellular Biology, University of Arizona, Tucson, Arizona 85721

Correspondence to: Hans J. Bohnert, bohnerth{at}u.arizona.edu (E-mail), 520-621-1697 (fax).

myo-Inositol and its derivatives are commonly studied with respect to cell signaling and membrane biogenesis, but they also participate in responses to salinity in animals and plants. In this study, we focused on L-myo-inositol 1-phosphate synthase (INPS), which commits carbon to de novo synthesis, and myo-inositol O-methyltransferase (IMT), which uses myo-inositol for stress-induced accumulation of a methylinositol, D-ononitol. The Imt and Inps promoters are transcriptionally controlled. We determined that the transcription rates, transcript levels, and protein abundance are correlated. During normal growth, INPS is present in all cells, but IMT is repressed. After salinity stress, the amount of INPS was enhanced in leaves but repressed in roots. IMT was induced in all cell types. The absence of myo-inositol synthesis in roots is compensated by inositol/ononitol transport in the phloem. The mobilization of photosynthate through myo-inositol translocation links root metabolism to photosynthesis. Our model integrates the transcriptional control of a specialized metabolic pathway with physiological reactions in different tissues. The tissue-specific differential regulation of INPS, which leads to a gradient of myo-inositol synthesis, supports root growth and sodium uptake. By inducing expression of IMT and increasing myo-inositol synthesis, metabolic end products accumulate, facilitating sodium sequestration and protecting photosynthesis.




This article has been cited by other articles:


Home page
 J Exp BotHome page
E. Antony, T. Taybi, M. Courbot, S. T. Mugford, J. A. C. Smith, and A. M. Borland
Cloning, localization and expression analysis of vacuolar sugar transporters in the CAM plant Ananas comosus (pineapple)
J. Exp. Bot., May 1, 2008; 59(7): 1895 - 1908.
[Abstract] [Full Text] [PDF]

Home page
 Plant CellHome page
S. Schneider, D. Beyhl, R. Hedrich, and N. Sauer
Functional and Physiological Characterization of Arabidopsis INOSITOL TRANSPORTER1, a Novel Tonoplast-Localized Transporter for myo-Inositol
PLANT CELL, April 1, 2008; 20(4): 1073 - 1087.
[Abstract] [Full Text] [PDF]

Home page
 Plant Physiol.Home page
M. Alhagdow, F. Mounet, L. Gilbert, A. Nunes-Nesi, V. Garcia, D. Just, J. Petit, B. Beauvoit, A. R. Fernie, C. Rothan, et al.
Silencing of the Mitochondrial Ascorbate Synthesizing Enzyme L-Galactono-1,4-Lactone Dehydrogenase Affects Plant and Fruit Development in Tomato
Plant Physiology, December 1, 2007; 145(4): 1408 - 1422.
[Abstract] [Full Text] [PDF]

Home page
 Plant Physiol.Home page
S. Schneider, A. Schneidereit, P. Udvardi, U. Hammes, M. Gramann, P. Dietrich, and N. Sauer
Arabidopsis INOSITOL TRANSPORTER2 Mediates H+ Symport of Different Inositol Epimers and Derivatives across the Plasma Membrane
Plant Physiology, December 1, 2007; 145(4): 1395 - 1407.
[Abstract] [Full Text] [PDF]

Home page
 J Exp BotHome page
S. Agarie, T. Shimoda, Y. Shimizu, K. Baumann, H. Sunagawa, A. Kondo, O. Ueno, T. Nakahara, A. Nose, and J. C. Cushman
Salt tolerance, salt accumulation, and ionic homeostasis in an epidermal bladder-cell-less mutant of the common ice plant Mesembryanthemum crystallinum
J. Exp. Bot., June 1, 2007; 58(8): 1957 - 1967.
[Abstract] [Full Text] [PDF]

Home page
 Plant Physiol.Home page
B. Pommerrenig, F. S. Papini-Terzi, and N. Sauer
Differential Regulation of Sorbitol and Sucrose Loading into the Phloem of Plantago major in Response to Salt Stress
Plant Physiology, June 1, 2007; 144(2): 1029 - 1038.
[Abstract] [Full Text] [PDF]

Home page
 ANN BOT (LOND)Home page
E. F. M. Abreu and F. J. L. Aragao
Isolation and Characterization of a myo-inositol-1-phosphate Synthase Gene from Yellow Passion Fruit (Passiflora edulis f. flavicarpa) Expressed During Seed Development and Environmental Stress
Ann. Bot., February 1, 2007; 99(2): 285 - 292.
[Abstract] [Full Text] [PDF]

Home page
 Plant Physiol.Home page
S. Schneider, A. Schneidereit, K. R. Konrad, M.-R. Hajirezaei, M. Gramann, R. Hedrich, and N. Sauer
Arabidopsis INOSITOL TRANSPORTER4 Mediates High-Affinity H+ Symport of Myoinositol across the Plasma Membrane
Plant Physiology, June 1, 2006; 141(2): 565 - 577.
[Abstract] [Full Text] [PDF]

Home page
 J. Biol. Chem.Home page
M. Majee, S. Maitra, K. G. Dastidar, S. Pattnaik, A. Chatterjee, N. C. Hait, K. P. Das, and A. L. Majumder
A Novel Salt-tolerant L-myo-Inositol-1-phosphate Synthase from Porteresia coarctata (Roxb.) Tateoka, a Halophytic Wild Rice: MOLECULAR CLONING, BACTERIAL OVEREXPRESSION, CHARACTERIZATION, AND FUNCTIONAL INTROGRESSION INTO TOBACCO-CONFERRING SALT TOLERANCE PHENOTYPE
J. Biol. Chem., July 2, 2004; 279(27): 28539 - 28552.
[Abstract] [Full Text] [PDF]

Home page
 Plant Physiol.Home page
P. Boominathan, R. Shukla, A. Kumar, D. Manna, D. Negi, P. K. Verma, and D. Chattopadhyay
Long Term Transcript Accumulation during the Development of Dehydration Adaptation in Cicer arietinum
Plant Physiology, July 1, 2004; 135(3): 1608 - 1620.
[Abstract] [Full Text] [PDF]

Home page
 Plant Physiol.Home page
V. Amiard, A. Morvan-Bertrand, J.-P. Billard, C. Huault, F. Keller, and M.-P. Prud'homme
Fructans, But Not the Sucrosyl-Galactosides, Raffinose and Loliose, Are Affected by Drought Stress in Perennial Ryegrass
Plant Physiology, August 1, 2003; 132(4): 2218 - 2229.
[Abstract] [Full Text] [PDF]

Home page
 Plant Physiol.Home page
K. P. Ismond, R. Dolferus, M. De Pauw, E. S. Dennis, and A. G. Good
Enhanced Low Oxygen Survival in Arabidopsis through Increased Metabolic Flux in the Fermentative Pathway
Plant Physiology, July 1, 2003; 132(3): 1292 - 1302.
[Abstract] [Full Text] [PDF]

Home page
 Plant Physiol.Home page
Z. Gong, H. Koiwa, M. A. Cushman, A. Ray, D. Bufford, S. Kore-eda, T. K. Matsumoto, J. Zhu, J. C. Cushman, R. A. Bressan, et al.
Genes That Are Uniquely Stress Regulated in Salt Overly Sensitive (sos) Mutants
Plant Physiology, May 1, 2001; 126(1): 363 - 375.
[Abstract] [Full Text]

Home page
 Plant Physiol.Home page
H. Su, D. Golldack, M. Katsuhara, C. Zhao, and H. J. Bohnert
Expression and Stress-Dependent Induction of Potassium Channel Transcripts in the Common Ice Plant
Plant Physiology, February 1, 2001; 125(2): 604 - 614.
[Abstract] [Full Text]

Home page
 Plant Physiol.Home page
B. J. Barkla, R. Vera-Estrella, M. Maldonado-Gama, and O. Pantoja
Abscisic Acid Induction of Vacuolar H+-ATPase Activity in Mesembryanthemum crystallinum Is Developmentally Regulated
Plant Physiology, July 1, 1999; 120(3): 811 - 820.
[Abstract] [Full Text]

Home page
 Plant Physiol.Home page
D. E. Nelson, M. Koukoumanos, and H. J. Bohnert
Myo-Inositol-Dependent Sodium Uptake in Ice Plant
Plant Physiology, January 1, 1999; 119(1): 165 - 172.
[Abstract] [Full Text]


HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
ASPB Publications THE PLANT CELL PLANT PHYSIOLOGY
Copyright © 1998 by the American Society of Plant Biologists