Plant Physiol.
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 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 Web of Science (64)
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Vázquez, M. D.
Right arrow Articles by Barceló, J.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Vázquez, M. D.
Right arrow Articles by Barceló, J.
Agricola
Right arrow Articles by Vázquez, M. D.
Right arrow Articles by Barceló, J.

Change in Apoplastic Aluminum during the Initial Growth Response to Aluminum by Roots of a Tolerant Maize Variety1

María Dolores Vázquez, Charlotte Poschenrieder, Isabel Corrales, and Juan Barceló*

Laboratorio de Fisiología Vegetal, Facultad de Ciencias, Universidad Autónoma de Barcelona, E-08193 Bellaterra, Spain

Root elongation, hematoxylin staining, and changes in the ultrastructure of root-tip cells of an Al-tolerant maize variety (Zea mays L. C 525 M) exposed to nutrient solutions with 20 µM Al (2.1 µM Al3+ activity) for 0, 4, and 24 h were investigated in relation to the subcellular distribution of Al using scanning transmission electron microscopy and energy-dispersive x-ray microanalysis on samples fixed by different methods. Inhibition of root-elongation rates, hematoxylin staining, cell wall thickening, and disturbance of the distribution of pyroantimoniate-stainable cations, mainly Ca, was observed only after 4 and not after 24 h of exposure to Al. The occurrence of these transient, toxic Al effects on root elongation and in cell walls was accompanied by the presence of solid Al-P deposits in the walls. Whereas no Al was detectable in cell walls after 24 h, an increase of vacuolar Al was observed after 4 h of exposure. After 24 h, a higher amount of electron-dense deposits containing Al and P or Si was observed in the vacuoles. These results indicate that in this tropical maize variety, tolerance mechanisms that cause a change in apoplastic Al must be active. Our data support the hypothesis that in Al-tolerant plants, Al can rapidly cross the plasma membrane; these data clearly contradict the former conclusions that Al mainly accumulates in the apoplast and enters the symplast only after severe cell damage has occurred.

1   This work was supported by the Research Council of the European Union (contract nos. TS*CT922-0071 and ERBIC188CT-0063) and by the Spanish National Research Council (contract no. DGICYT PB97-0163-C02-01).
*   Corresponding author; e-mail j_barcelo{at}cc.uab.es; fax 34-93-581-2003.

Plant Physiol. (1999) 119: 435-444
Copyright Clearance Center:   0032-0889/99/119//10
© 1999 American Society of Plant Physiologists




This article has been cited by other articles:


Home page
 J Exp BotHome page
S. Zhou, R. Sauve, and T. W. Thannhauser
Proteome changes induced by aluminium stress in tomato roots
J. Exp. Bot., April 1, 2009; 60(6): 1849 - 1857.
[Abstract] [Full Text] [PDF]

Home page
 Plant Cell PhysiolHome page
P. Sun, Q.-Y. Tian, M.-G. Zhao, X.-Y. Dai, J.-H. Huang, L.-H. Li, and W.-H. Zhang
Aluminum-Induced Ethylene Production is Associated with Inhibition of Root Elongation in Lotus japonicus L.
Plant Cell Physiol., August 1, 2007; 48(8): 1229 - 1235.
[Abstract] [Full Text] [PDF]

Home page
 J Exp BotHome page
P. Illes, M. Schlicht, J. Pavlovkin, I. Lichtscheidl, F. Baluska, and M. Ovecka
Aluminium toxicity in plants: internalization of aluminium into cells of the transition zone in Arabidopsis root apices related to changes in plasma membrane potential, endosomal behaviour, and nitric oxide production
J. Exp. Bot., December 1, 2006; 57(15): 4201 - 4213.
[Abstract] [Full Text] [PDF]

Home page
 Plant Physiol.Home page
S. J. Zheng, J. L. Yang, Y. F. He, X. H. Yu, L. Zhang, J. F. You, R. F. Shen, and H. Matsumoto
Immobilization of Aluminum with Phosphorus in Roots Is Associated with High Aluminum Resistance in Buckwheat
Plant Physiology, May 1, 2005; 138(1): 297 - 303.
[Abstract] [Full Text] [PDF]

Home page
 J Exp BotHome page
S. Doncheva, M. Amenos, C. Poschenrieder, and J. Barcelo
Root cell patterning: a primary target for aluminium toxicity in maize
J. Exp. Bot., April 1, 2005; 56(414): 1213 - 1220.
[Abstract] [Full Text] [PDF]

Home page
 Plant Physiol.Home page
T. Kashiwagi and K. Ishimaru
Identification and Functional Analysis of a Locus for Improvement of Lodging Resistance in Rice
Plant Physiology, February 1, 2004; 134(2): 676 - 683.
[Abstract] [Full Text] [PDF]

Home page
 Plant Physiol.Home page
L. Zhao, F. Zhang, J. Guo, Y. Yang, B. Li, and L. Zhang
Nitric Oxide Functions as a Signal in Salt Resistance in the Calluses from Two Ecotypes of Reed
Plant Physiology, February 1, 2004; 134(2): 849 - 857.
[Abstract] [Full Text] [PDF]

Home page
 Plant Physiol.Home page
M. Tesfaye, S. J. Temple, D. L. Allan, C. P. Vance, and D. A. Samac
Overexpression of Malate Dehydrogenase in Transgenic Alfalfa Enhances Organic Acid Synthesis and Confers Tolerance to Aluminum
Plant Physiology, December 1, 2001; 127(4): 1836 - 1844.
[Abstract] [Full Text] [PDF]

Home page
 J Exp BotHome page
P.S. Kidd, M. Llugany, C. Poschenrieder, B. Gunse, and J. Barcelo
The role of root exudates in aluminium resistance and silicon-induced amelioration of aluminium toxicity in three varieties of maize (Zea mays L.)
J. Exp. Bot., June 1, 2001; 52(359): 1339 - 1352.
[Abstract] [Full Text] [PDF]

Home page
 Plant Physiol.Home page
I. R. Silva, T. J. Smyth, D. F. Moxley, T. E. Carter, N. S. Allen, and T. W. Rufty
Aluminum Accumulation at Nuclei of Cells in the Root Tip. Fluorescence Detection Using Lumogallion and Confocal Laser Scanning Microscopy
Plant Physiology, June 1, 2000; 123(2): 543 - 552.
[Abstract] [Full Text]

Home page
 Plant Physiol.Home page
M. Kollmeier, H. H. Felle, and W. J. Horst
Genotypical Differences in Aluminum Resistance of Maize Are Expressed in the Distal Part of the Transition Zone. Is Reduced Basipetal Auxin Flow Involved in Inhibition of Root Elongation by Aluminum?
Plant Physiology, March 1, 2000; 122(3): 945 - 956.
[Abstract] [Full Text] [PDF]


HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
ASPB Publications PLANT PHYSIOLOGY® THE PLANT CELL
Copyright © 1999 by the American Society of Plant Biologists