The DOI matches its Crossref record; 27 of the 27 references it cites were found in a registry or an index.
AtALMT1 , which encodes a malate transporter, is identified as one of several genes critical for aluminum tolerance in Arabidopsis
Open accessAbstract
Aluminum (Al) tolerance in Arabidopsis is a genetically complex trait, yet it is mediated by a single physiological mechanism based on Al-activated root malate efflux. We investigated a possible molecular determinant for Al tolerance involving a homolog of the wheat Al-activated malate transporter, ALMT1 . This gene, named AtALMT1 (At1g08430), was the best candidate from the 14-member AtALMT family to be involved with Al tolerance based on expression patterns and genomic location. Physiological analysis of a transferred DNA knockout mutant for AtALMT1 as well as electrophysiological examination of the protein expressed in Xenopus oocytes showed that AtALMT1 is critical for Arabidopsis Al tolerance and encodes the Al-activated root malate efflux transporter associated with tolerance. However, gene expression and sequence analysis of AtALMT1 alleles from tolerant Columbia (Col), sensitive Landsberg erecta (Ler), and other ecotypes that varied in Al tolerance suggested that variation observed at AtALMT1 is not correlated with the differences observed in Al tolerance among these ecotypes. Genetic complementation experiments indicated that the Ler allele of AtALMT1 is equally effective as the Col allele in conferring Al tolerance and Al-activated malate release. Finally, fine-scale mapping of a quantitative trait locus (QTL) for Al tolerance on chromosome 1 indicated that AtALMT1 is located proximal to this QTL. These results indicate that AtALMT1 is an essential factor for Al tolerance in Arabidopsis but does not represent the major Al tolerance QTL also found on chromosome 1.
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Cites
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Cited by
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Aluminum, a Friend or Foe of Higher Plants in Acid Soils
Bojórquez-Quintal, E., Escalante-Magaña, C., Echevarría-Machado, I., & Martínez-Estévez, M. (2017) · Frontiers in Plant Science · doi:10.3389/fpls.2017.01767 · Cited by 544
An Aluminum-Activated Citrate Transporter in Barley
Furukawa, J., Yamaji, N., Wang, H., Mitani, N., Murata, Y., Sato, K., Katsuhara, M., Takeda, K., & Ma, J. F. (2007) · Plant and Cell Physiology · doi:10.1093/pcp/pcm091 · Cited by 526
Hedrich, R. (2012) · Physiological Reviews · doi:10.1152/physrev.00038.2011 · Cited by 472
Metadata
- Authors
- Hoekenga, O. A., Maron, L. G., Piñeros, M. A., Cançado, G. M. A., Shaff, J., Kobayashi, Y., Ryan, P. R., Dong, B., Delhaize, E., Sasaki, T., Matsumoto, H., Yamamoto, Y., Koyama, H., & Kochian, L. V.
- Venue
- Proceedings of the National Academy of Sciences
- Published
- 2006-06-20
- Volume
- 103
- Issue
- 25
- Pages
- 9738-9743
- ISSN
- 0027-8424 (ISSN-L)
- 1091-6490
- OpenAlex
- W2159995170
- Cited by
- 584
- References
- 27
- FWCI
- 27.88
- Type
- journal article
- Language
- en
- Open access
- bronze
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- Hoekenga, O. A., Maron, L. G., Piñeros, M. A., Cançado, G. M. A., Shaff, J., Kobayashi, Y., Ryan, P. R., Dong, B., Delhaize, E., Sasaki, T., Matsumoto, H., Yamamoto, Y., Koyama, H., & Kochian, L. V. (2006). AtALMT1 , which encodes a malate transporter, is identified as one of several genes critical for aluminum tolerance in Arabidopsis. Proceedings of the National Academy of Sciences. https://doi.org/10.1073/pnas.0602868103
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