Molecular mechanisms of Al tolerance in gramineous plants

Jian Feng Ma, Zhi Chang Chen, Ren Fang Shen

Research output: Contribution to journalArticle

68 Citations (Scopus)

Abstract

Background: Aluminum (Al) toxicity has limited the productivity and expansion of cereal crops on acid soils; however, a number of plant species or cultivars have developed different strategies for detoxifying aluminum both internally and externally. Scope: This review focuses on recent progress on molecular mechanisms of Al tolerance in gramineous plants. Conclusions: A common mechanism in all gramineous plants is the secretion of organic acid anions (citrate and malate) from the roots. Genes belonging to ALMT (for Aluminum-activated malate transporter) and MATE (Multidrug and toxic compound extrusion) family involved in the secretion have been identified in several plant species; however, different plant species show different gene expression patterns including Al-induction, spatial and temporal expression, and tissue localization. Furthermore, the mechanisms regulating the gene expression also differ with plant species, which are achieved by increased tandem repeated element, increase of copy number, insertion of transposon, or alteration of cis-acting element. In addition to these common Al exclusion mechanisms, rice as a highly Al-tolerant species has developed a number of other mechanisms for detoxification of Al. A transcription factor for Al tolerance ART1 identified in rice regulates at least 30 genes implicated in internal and external detoxification of Al. These multiple genes may contribute to the high Al tolerance of rice. In the future, regulation mechanisms of Al-tolerance genes need to be further investigated.

Original languageEnglish
Pages (from-to)1-12
Number of pages12
JournalPlant and Soil
Volume381
Issue number1-2
DOIs
Publication statusPublished - 2014

Fingerprint

aluminum
tolerance
rice
gene
malates
detoxification
secretion
gene expression
genes
acid soil
grain crops
extrusion
toxic substances
organic acid
citrates
acid soils
transposons
anions
cereal
organic acids and salts

Keywords

  • Aluminum
  • Anion transporter
  • Citrate
  • Gramineous plant
  • Malate
  • Tolerance

ASJC Scopus subject areas

  • Soil Science
  • Plant Science

Cite this

Molecular mechanisms of Al tolerance in gramineous plants. / Ma, Jian Feng; Chen, Zhi Chang; Shen, Ren Fang.

In: Plant and Soil, Vol. 381, No. 1-2, 2014, p. 1-12.

Research output: Contribution to journalArticle

Ma, Jian Feng ; Chen, Zhi Chang ; Shen, Ren Fang. / Molecular mechanisms of Al tolerance in gramineous plants. In: Plant and Soil. 2014 ; Vol. 381, No. 1-2. pp. 1-12.
@article{ac6cb876f35242f8a701761cb84851dd,
title = "Molecular mechanisms of Al tolerance in gramineous plants",
abstract = "Background: Aluminum (Al) toxicity has limited the productivity and expansion of cereal crops on acid soils; however, a number of plant species or cultivars have developed different strategies for detoxifying aluminum both internally and externally. Scope: This review focuses on recent progress on molecular mechanisms of Al tolerance in gramineous plants. Conclusions: A common mechanism in all gramineous plants is the secretion of organic acid anions (citrate and malate) from the roots. Genes belonging to ALMT (for Aluminum-activated malate transporter) and MATE (Multidrug and toxic compound extrusion) family involved in the secretion have been identified in several plant species; however, different plant species show different gene expression patterns including Al-induction, spatial and temporal expression, and tissue localization. Furthermore, the mechanisms regulating the gene expression also differ with plant species, which are achieved by increased tandem repeated element, increase of copy number, insertion of transposon, or alteration of cis-acting element. In addition to these common Al exclusion mechanisms, rice as a highly Al-tolerant species has developed a number of other mechanisms for detoxification of Al. A transcription factor for Al tolerance ART1 identified in rice regulates at least 30 genes implicated in internal and external detoxification of Al. These multiple genes may contribute to the high Al tolerance of rice. In the future, regulation mechanisms of Al-tolerance genes need to be further investigated.",
keywords = "Aluminum, Anion transporter, Citrate, Gramineous plant, Malate, Tolerance",
author = "Ma, {Jian Feng} and Chen, {Zhi Chang} and Shen, {Ren Fang}",
year = "2014",
doi = "10.1007/s11104-014-2073-1",
language = "English",
volume = "381",
pages = "1--12",
journal = "Plant and Soil",
issn = "0032-079X",
publisher = "Springer Netherlands",
number = "1-2",

}

TY - JOUR

T1 - Molecular mechanisms of Al tolerance in gramineous plants

AU - Ma, Jian Feng

AU - Chen, Zhi Chang

AU - Shen, Ren Fang

PY - 2014

Y1 - 2014

N2 - Background: Aluminum (Al) toxicity has limited the productivity and expansion of cereal crops on acid soils; however, a number of plant species or cultivars have developed different strategies for detoxifying aluminum both internally and externally. Scope: This review focuses on recent progress on molecular mechanisms of Al tolerance in gramineous plants. Conclusions: A common mechanism in all gramineous plants is the secretion of organic acid anions (citrate and malate) from the roots. Genes belonging to ALMT (for Aluminum-activated malate transporter) and MATE (Multidrug and toxic compound extrusion) family involved in the secretion have been identified in several plant species; however, different plant species show different gene expression patterns including Al-induction, spatial and temporal expression, and tissue localization. Furthermore, the mechanisms regulating the gene expression also differ with plant species, which are achieved by increased tandem repeated element, increase of copy number, insertion of transposon, or alteration of cis-acting element. In addition to these common Al exclusion mechanisms, rice as a highly Al-tolerant species has developed a number of other mechanisms for detoxification of Al. A transcription factor for Al tolerance ART1 identified in rice regulates at least 30 genes implicated in internal and external detoxification of Al. These multiple genes may contribute to the high Al tolerance of rice. In the future, regulation mechanisms of Al-tolerance genes need to be further investigated.

AB - Background: Aluminum (Al) toxicity has limited the productivity and expansion of cereal crops on acid soils; however, a number of plant species or cultivars have developed different strategies for detoxifying aluminum both internally and externally. Scope: This review focuses on recent progress on molecular mechanisms of Al tolerance in gramineous plants. Conclusions: A common mechanism in all gramineous plants is the secretion of organic acid anions (citrate and malate) from the roots. Genes belonging to ALMT (for Aluminum-activated malate transporter) and MATE (Multidrug and toxic compound extrusion) family involved in the secretion have been identified in several plant species; however, different plant species show different gene expression patterns including Al-induction, spatial and temporal expression, and tissue localization. Furthermore, the mechanisms regulating the gene expression also differ with plant species, which are achieved by increased tandem repeated element, increase of copy number, insertion of transposon, or alteration of cis-acting element. In addition to these common Al exclusion mechanisms, rice as a highly Al-tolerant species has developed a number of other mechanisms for detoxification of Al. A transcription factor for Al tolerance ART1 identified in rice regulates at least 30 genes implicated in internal and external detoxification of Al. These multiple genes may contribute to the high Al tolerance of rice. In the future, regulation mechanisms of Al-tolerance genes need to be further investigated.

KW - Aluminum

KW - Anion transporter

KW - Citrate

KW - Gramineous plant

KW - Malate

KW - Tolerance

UR - http://www.scopus.com/inward/record.url?scp=84895853442&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84895853442&partnerID=8YFLogxK

U2 - 10.1007/s11104-014-2073-1

DO - 10.1007/s11104-014-2073-1

M3 - Article

AN - SCOPUS:84895853442

VL - 381

SP - 1

EP - 12

JO - Plant and Soil

JF - Plant and Soil

SN - 0032-079X

IS - 1-2

ER -