RRC ID 70150
著者 Kobayashi Y, Lakshmanan V, Kobayashi Y, Asai M, Iuchi S, Kobayashi M, Bais HP, Koyama H.
タイトル Overexpression of AtALMT1 in the Arabidopsis thaliana ecotype Columbia results in enhanced Al-activated malate excretion and beneficial bacterium recruitment.
ジャーナル Plant Signal Behav
Abstract AtALMT1 (Arabidopsis thaliana ALuminum activated Malate Transporter 1) encodes an Arabidopsis thaliana malate transporter that has a pleiotropic role in Arabidopsis stress tolerance. Malate released through AtALMT1 protects the root tip from Al rhizotoxicity, and recruits beneficial rhizobacteria that induce plant immunity. To examine whether the overexpression of AtALMT1 can improve these traits, the gene, driven by the cauliflower mosaic virus 35S promoter, was introduced into the Arabidopsis ecotype Columbia. Overexpression of the gene enhanced both Al-activated malate excretion and the recruitment of beneficial bacteria Bacillus subtilis strain FB17. These findings suggest that overexpression of AtALMT1 can be used as an approach to enhance a plant's ability to release malate into the rhizosphere, which can enhance plant tolerance to some environmental stress factors.
巻・号 8(9)
公開日 2013-9-1
DOI 10.4161/psb.25565
PII 25565
PMID 23857348
PMC PMC4002621
MeSH Aluminum / toxicity* Arabidopsis / drug effects Arabidopsis / genetics Arabidopsis / metabolism* Arabidopsis / microbiology* Arabidopsis Proteins / metabolism* Bacillus subtilis / drug effects Bacillus subtilis / physiology* Ecotype* Malates / metabolism* Organic Anion Transporters / metabolism* Phenotype Plants, Genetically Modified
IF 1.671
リソース情報
シロイヌナズナ / 植物培養細胞・遺伝子 sjw05800