The SUI-homologous translation initiation factor eIF-1 is involved in regulation of ion homeostasis in rice

Diedhiou CJ, Popova OV, Dietz K-J, Golldack D (2008)
PLANT BIOLOGY 10(3): 298-309.

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Abstract
Halophytes survive high salinity by using complex adaptive mechanisms. In a search for novel molecular mechanisms involved in salt acclimation, transcript analyses revealed increased expression of a SUI-homologous translation initiation factor eIF-1 in the salt-tolerant grass species Festuca rubra ssp. littoralis but not in rice. Upon analysis of the cell specificity of eIF-1 transcription by in situ polymerase chain reaction (PCR), predominant signals were detected in rice leaf mesophyll. To further examine the role of eIF-1 in salt tolerance, transgenic rice plants were generated that over-express this factor under the control of the CaMV-35S promoter. The eIF-1 over-expressing lines showed improved growth under salt stress that was correlated with maintenance of photosynthetic activity and reduced Na+ and Cl- accumulation in leaves. The transgenic rice lines also activated expression of the vacuolar H+-ATPase. In addition, an oxidoreductase that belongs to the aldo/keto reductase family was identified as a gene with modified expression in the eIF-1 over-expressing lines, compared with wild-type rice. Our data suggest that eIF-1 has a central function in salt-stress adaptation in rice by regulating ion accumulation and the intracellular redox status.
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Diedhiou CJ, Popova OV, Dietz K-J, Golldack D. The SUI-homologous translation initiation factor eIF-1 is involved in regulation of ion homeostasis in rice. PLANT BIOLOGY. 2008;10(3):298-309.
Diedhiou, C. J., Popova, O. V., Dietz, K. - J., & Golldack, D. (2008). The SUI-homologous translation initiation factor eIF-1 is involved in regulation of ion homeostasis in rice. PLANT BIOLOGY, 10(3), 298-309.
Diedhiou, C. J., Popova, O. V., Dietz, K. - J., and Golldack, D. (2008). The SUI-homologous translation initiation factor eIF-1 is involved in regulation of ion homeostasis in rice. PLANT BIOLOGY 10, 298-309.
Diedhiou, C.J., et al., 2008. The SUI-homologous translation initiation factor eIF-1 is involved in regulation of ion homeostasis in rice. PLANT BIOLOGY, 10(3), p 298-309.
C.J. Diedhiou, et al., “The SUI-homologous translation initiation factor eIF-1 is involved in regulation of ion homeostasis in rice”, PLANT BIOLOGY, vol. 10, 2008, pp. 298-309.
Diedhiou, C.J., Popova, O.V., Dietz, K.-J., Golldack, D.: The SUI-homologous translation initiation factor eIF-1 is involved in regulation of ion homeostasis in rice. PLANT BIOLOGY. 10, 298-309 (2008).
Diedhiou, C. J., Popova, O. V., Dietz, Karl-Josef, and Golldack, Dortje. “The SUI-homologous translation initiation factor eIF-1 is involved in regulation of ion homeostasis in rice”. PLANT BIOLOGY 10.3 (2008): 298-309.
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