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A wheat gene encoding an aluminum‐activated malate transporter
Open accessAbstract
Summary: The major constraint to plant growth in acid soils is the presence of toxic aluminum (Al) cations, which inhibit root elongation. The enhanced Al tolerance exhibited by some cultivars of wheat is associated with the Al‐dependent efflux of malate from root apices. Malate forms a stable complex with Al that is harmless to plants and, therefore, this efflux of malate forms the basis of a hypothesis to explain Al tolerance in wheat. Here, we report on the cloning of a wheat gene, ALMT1 (al uminum‐activated m alate t ransporter), that co‐segregates with Al tolerance in F 2 and F 3 populations derived from crosses between near‐isogenic wheat lines that differ in Al tolerance. The ALMT1 gene encodes a membrane protein, which is constitutively expressed in the root apices of the Al‐tolerant line at greater levels than in the near‐isogenic but Al‐sensitive line. Heterologous expression of ALMT1 in Xenopus oocytes, rice and cultured tobacco cells conferred an Al‐activated malate efflux. Additionally, ALMT1 increased the tolerance of tobacco cells to Al treatment. These findings demonstrate that ALMT1 encodes an Al‐activated malate transporter that is capable of conferring Al tolerance to plant cells.
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Cited by
Raghothama, K. G., & Karthikeyan, A. S. (2005) · Plant and Soil · doi:10.1007/s11104-004-2005-6 · Cited by 1,640
SLAC1 is required for plant guard cell S-type anion channel function in stomatal signalling
Vahisalu, T., Kollist, H., Wang, Y.-F., Nishimura, N., Chan, W.-Y., Valerio, G., Lamminmäki, A., Brosché, M., Moldau, H., Desikan, R., et al. (2008) · Nature · doi:10.1038/nature06608 · Cited by 853
Quantitative Trait Loci and Crop Performance under Abiotic Stress: Where Do We Stand?: Table I.
Collins, N. C., Tardieu, F., & Tuberosa, R. (2008) · PLANT PHYSIOLOGY · doi:10.1104/pp.108.118117 · Cited by 559
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
Low phosphate activates STOP1-ALMT1 to rapidly inhibit root cell elongation
Balzergue, C., Dartevelle, T., Godon, C., Laugier, E., Meisrimler, C., Teulon, J.-M., Creff, A., Bissler, M., Brouchoud, C., Hagège, A., et al. (2017) · Nature Communications · doi:10.1038/ncomms15300 · Cited by 365
Metadata
- Authors
- Sasaki, T., Yamamoto, Y., Ezaki, B., Katsuhara, M., Ahn, S. J., Ryan, P. R., Delhaize, E., & Matsumoto, H.
- Venue
- The Plant Journal
- Publisher
- Wiley
- Published
- 2004-01-26
- Volume
- 37
- Issue
- 5
- Pages
- 645-653
- ISSN
- 0960-7412 (ISSN-L)
- 1365-313X
- OpenAlex
- W2095144976
- Cited by
- 979
- References
- 0
- FWCI
- 49.48
- Type
- journal article
- Language
- en
- Open access
- bronze
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- Sasaki, T., Yamamoto, Y., Ezaki, B., Katsuhara, M., Ahn, S. J., Ryan, P. R., Delhaize, E., & Matsumoto, H. (2004). A wheat gene encoding an aluminum‐activated malate transporter. The Plant Journal. https://doi.org/10.1111/j.1365-313x.2003.01991.x
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