Syndrome of Aluminum Toxicity and Diversity of Aluminum Resistance in Higher Plants

Research output: Contribution to journalArticle

194 Citations (Scopus)

Abstract

Aluminum (Al) is the most abundant metal in the earth's crust, while its soluble ionic form (Al3+) shows phytotoxicity, which is characterized by a rapid inhibition of root elongation. Aluminum targets multiple cellular sites by binding, resulting in disrupted structure and/or functions of the cell wall, plasma membrane, signal transduction pathway, and Ca homeostasis. On the other hand, some plant species have evolved mechanisms to cope with Al toxicity both externally and internally. The well-documented mechanisms for external detoxification of Al include the release of organic acid anions from roots and alkalination of the rhizosphere. Genes encoding transporters for Al-induced secretion of organic acid anions have been identified and characterized. Recent studies show that ABC transporters are involved in Al resistance. The internal detoxification of Al in Al-accumulating plants is achieved by the formation of nontoxic Al complexes with organic acids or other chelators and sequestration of these complexes in the vacuoles. In some plant species, Al shows beneficial effects on plant growth under particular conditions, although the exact mechanisms for these effects are unknown.

Original languageEnglish
Pages (from-to)225-252
Number of pages28
JournalInternational Review of Cytology
Volume264
DOIs
Publication statusPublished - 2007

Fingerprint

Aluminum
Toxicity
Organic acids
Detoxification
Anions
Acids
Aluminum plants
Signal transduction
Gene encoding
ATP-Binding Cassette Transporters
Rhizosphere
Cell membranes
Chelating Agents
Vacuoles
Elongation
Cell Wall
Signal Transduction
Metals
Earth (planet)
Binding Sites

Keywords

  • Al resistance
  • Al toxicity
  • Beneficial effect
  • External detoxification
  • Internal detoxification
  • Organic acid anions
  • Transporter

ASJC Scopus subject areas

  • Cell Biology
  • Histology

Cite this

Syndrome of Aluminum Toxicity and Diversity of Aluminum Resistance in Higher Plants. / Ma, Jian Feng.

In: International Review of Cytology, Vol. 264, 2007, p. 225-252.

Research output: Contribution to journalArticle

@article{c121c0fe4b7146409e741d4e21e1d315,
title = "Syndrome of Aluminum Toxicity and Diversity of Aluminum Resistance in Higher Plants",
abstract = "Aluminum (Al) is the most abundant metal in the earth's crust, while its soluble ionic form (Al3+) shows phytotoxicity, which is characterized by a rapid inhibition of root elongation. Aluminum targets multiple cellular sites by binding, resulting in disrupted structure and/or functions of the cell wall, plasma membrane, signal transduction pathway, and Ca homeostasis. On the other hand, some plant species have evolved mechanisms to cope with Al toxicity both externally and internally. The well-documented mechanisms for external detoxification of Al include the release of organic acid anions from roots and alkalination of the rhizosphere. Genes encoding transporters for Al-induced secretion of organic acid anions have been identified and characterized. Recent studies show that ABC transporters are involved in Al resistance. The internal detoxification of Al in Al-accumulating plants is achieved by the formation of nontoxic Al complexes with organic acids or other chelators and sequestration of these complexes in the vacuoles. In some plant species, Al shows beneficial effects on plant growth under particular conditions, although the exact mechanisms for these effects are unknown.",
keywords = "Al resistance, Al toxicity, Beneficial effect, External detoxification, Internal detoxification, Organic acid anions, Transporter",
author = "Ma, {Jian Feng}",
year = "2007",
doi = "10.1016/S0074-7696(07)64005-4",
language = "English",
volume = "264",
pages = "225--252",
journal = "International Review of Cell and Molecular Biology",
issn = "1937-6448",
publisher = "Elsevier Inc.",

}

TY - JOUR

T1 - Syndrome of Aluminum Toxicity and Diversity of Aluminum Resistance in Higher Plants

AU - Ma, Jian Feng

PY - 2007

Y1 - 2007

N2 - Aluminum (Al) is the most abundant metal in the earth's crust, while its soluble ionic form (Al3+) shows phytotoxicity, which is characterized by a rapid inhibition of root elongation. Aluminum targets multiple cellular sites by binding, resulting in disrupted structure and/or functions of the cell wall, plasma membrane, signal transduction pathway, and Ca homeostasis. On the other hand, some plant species have evolved mechanisms to cope with Al toxicity both externally and internally. The well-documented mechanisms for external detoxification of Al include the release of organic acid anions from roots and alkalination of the rhizosphere. Genes encoding transporters for Al-induced secretion of organic acid anions have been identified and characterized. Recent studies show that ABC transporters are involved in Al resistance. The internal detoxification of Al in Al-accumulating plants is achieved by the formation of nontoxic Al complexes with organic acids or other chelators and sequestration of these complexes in the vacuoles. In some plant species, Al shows beneficial effects on plant growth under particular conditions, although the exact mechanisms for these effects are unknown.

AB - Aluminum (Al) is the most abundant metal in the earth's crust, while its soluble ionic form (Al3+) shows phytotoxicity, which is characterized by a rapid inhibition of root elongation. Aluminum targets multiple cellular sites by binding, resulting in disrupted structure and/or functions of the cell wall, plasma membrane, signal transduction pathway, and Ca homeostasis. On the other hand, some plant species have evolved mechanisms to cope with Al toxicity both externally and internally. The well-documented mechanisms for external detoxification of Al include the release of organic acid anions from roots and alkalination of the rhizosphere. Genes encoding transporters for Al-induced secretion of organic acid anions have been identified and characterized. Recent studies show that ABC transporters are involved in Al resistance. The internal detoxification of Al in Al-accumulating plants is achieved by the formation of nontoxic Al complexes with organic acids or other chelators and sequestration of these complexes in the vacuoles. In some plant species, Al shows beneficial effects on plant growth under particular conditions, although the exact mechanisms for these effects are unknown.

KW - Al resistance

KW - Al toxicity

KW - Beneficial effect

KW - External detoxification

KW - Internal detoxification

KW - Organic acid anions

KW - Transporter

UR - http://www.scopus.com/inward/record.url?scp=35448962900&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=35448962900&partnerID=8YFLogxK

U2 - 10.1016/S0074-7696(07)64005-4

DO - 10.1016/S0074-7696(07)64005-4

M3 - Article

C2 - 17964924

AN - SCOPUS:35448962900

VL - 264

SP - 225

EP - 252

JO - International Review of Cell and Molecular Biology

JF - International Review of Cell and Molecular Biology

SN - 1937-6448

ER -