Functional characterisation of LKT1, a K+ uptake channel from tomato root hairs, and comparison with the closely related potato inwardly rectifying K+ channel SKT1 after expression in Xenopus oocytes

Planta

Volumn 210, Issue 5, 2000, Pages 723-731

  Hartje, Stefanie ^a   Zimmermann, Sabine ^a   Klonus, Dirk ^a,b   Mueller Roeber, Bernd ^a  

^a MAX PLANCK INSTITUTE OF MOLECULAR PLANT PHYSIOLOGY   (Germany)

^b SANOFI   (France)

Author keywords

Lycopersicon (K+ channel); pH regulation; Potassium inwardly rectifying channel; Root hair; Solanum (K+ channel); Xenopus oocytes

Indexed keywords

AMINO ACID SUBSTITUTION; BIOCHEMICAL PATHWAY; CDNA LIBRARY; COMPLEMENTARY DNA; GENE EXPRESSION; GENE FUNCTION; GENETIC REGULATION; MESSENGER RNA; MOLECULAR CLONING; NORTHERN BLOTTING; PH; POTASSIUM CHANNEL; PROTEIN DOMAIN; ROOT HAIR CELL; STRUCTURE ACTIVITY RELATION;

ARABIDOPSIS THALIANA; EMBRYOPHYTA; LYCOPERSICON; LYCOPERSICON ESCULENTUM; SOLANUM TUBEROSUM; TUBEROSUM; XENOPUS; XENOPUS LAEVIS;

EID: 0034117309     PISSN: 00320935     EISSN: None     Source Type: Journal    
DOI: 10.1007/s004250050673     Document Type: Article

References (40)

1. Amasino RM (1986) Acceleration of nucleic acid hybridisation rate by polyethylene glycol. Anal Biochem 152: 304-307
2. + channels KAT1 and AKT2 by dominant negative point mutations in the KAT1 α-subunit. J Membr Biol 167: 119-125
3. Basset M, Conejero G, Lepetit M, Fourcroy P, Sentenac H (1995) Organisation and expression of the gene coding for the transport system AKT1 of Arabidopsis thaliana. Plant Mol Biol 29: 947-958
4. + channel KAT1. Proc Natl Acad Sci USA 93: 8123-8128
5. Bertl A, Reid JD, Sentenac H, Slayman CL (1997) Functional comparison of plant inward-rectifier channels expressed in yeast. J Exp Bot 48: 405-413
6. Bucher M, Schroeer B, Willmitzer L, Riesmeier JW (1997) Two genes encoding extensin-like proteins are predominantly expressed in tomato root hair cells. Plant Mol Biol 35: 497-508
7. Cao Y, Anderova M, Crawford N, Schroeder JI (1992) Expression of an outward-rectifying potassium channel from maize mRNA and complementory RNA in Xenopus oocytes. Plant Cell 4: 961-969
8. Cao Y, Ward JM, Kelly WB, Ichida AM, Gaber RF, Anderson JA, Uozumi N, Schroeder JI, Crawford NM (1995) Multiple genes, tissue specificity, and expression-dependent modulation contribute to the functional diversity of potassium channels in Arabidopsis thaliana. Plant Physiol 109: 1093-1106
9. Czempinski K, Gaedeke N, Zimmermann S, Müller-Röber B (1999) Molecular mechanisms and regulation of plant ion channels. J Exp Bot 50: 955-966
10. + channel α-subunits assemble indiscriminately. Biophys J 72: 2143-2150
11. Dreyer I, Horeau C, Lemaillet G, Zimmermann S, Bush DR, Rodriguez-Navarro A, Schachtman DP, Spalding EP, Sentenac H, Gaber RF (1999) Identification and characterization of plant transporters using heterologous expression systems. J Exp Bot 50: 1073-1087
12. Duckett CM, Oparka KJ, Prior DAM, Roberts K (1994) Dye-coupling in the root epidermis of Arabidopsis is progressively reduced during development. Development 120: 3247-3255
13. in channels is mediated by conserved C-termini and does not affect subunit assembly. FEBS Lett 409: 166-170
14. 32P) uptake from soil. Plant Soil 198: 147-152
15. + uptake and membrane potential control. Plant Physiol 105: 1399-1408
16. + channel from Arabidopsis. J Biol Chem 272: 22863-22870
17. + release into xylem sap. Cell 94: 647-655
18. Glass ADM (1989) Plant nutrition: an introduction to current concepts. Jones and Bartlett Publishers, Boston, Mass
19. Hedrich R, Moran O, Conti F, Busch H, Becker D, Gambale F, Dreyer I, Küch A, Neuwinger K, Palme K (1995) Inward rectifier potassium channels in plants differ from their animal counterparts in response to voltage and channel modulators. Eur Biophys J 24: 107-115
20. Hirsch RE, Lewis BD, Spalding EP, Sussmann MR (1998) A role for the AKT1 potassium channel in plant nutrition. Science 280: 918-921
21. + channels KST1 and KAT1. J Biol Chem 274: 11599-11603
22. + uptake channels. Proc Natl Acad Sci USA 94: 4806-4810
23. +-resistant, light-induced stomatal opening in transgenic Arabidopsis. Plant Cell 9: 1843-1857
24. + transporters in Saccharomyces cerevisiae. Mol Cell Biol 11: 4266-4273
25. + nutrition. Plant J 9: 195-203
26. Landschütze V, Müller-Röber B, Willmitzer L (1995) Mitochondrial citrate synthase from potato: predominant expression in mature leaves and young flower buds. Planta 196: 756-764
27. Logemann J, Schell J, Willmitzer L (1987) Improved method for the isolation of RNA from plant tissues. Anal Biochem 163: 21-26
28. Maathuis FJM, Sanders D (1996) Mechanisms of potassium absorption by higher plant roots. Physiol Plant 96: 158-168
29. + channel, is blocked by protons. Proc Natl Acad Sci USA 96: 7581-7586
30. + transport, and root-cell membrane potentials. Plant Physiol 91: 1188-1196
31. + channel expressed in potato guard cells. EMBO J 14: 2409-2416
32. Röhm M, Werner D (1987) Isolation of root-hairs from Pisum sativum. Identification of root-hair specific proteins by in situ labeling. Physiol Plant 69: 129-136
33. Ryan PR, DiTomaso JM, Kochian LV (1993) Aluminum toxicity in roots: an investigation of spatial sensitivity and the role of the root cap. J Exp Bot 44: 437-446
34. Schenborn ET, Mierendorf RC (1985) A novel transcription property of SP6 and T7 RNA polymerases: dependence an template structure. Nucleic Acids Res 13: 6223-6236
35. Sentenac H, Bonneaud N, Minet M, Lacroute F, Salmon J-M, Gaymard F, Grignon C (1992) Cloning and expression in yeast of a plant potassium ion transport system. Science 256: 663-669
36. Sheahan JJ, Ribeiro-Neto L, Sussman MR (1993) Cesium-insensitive mutants of Arabidopsis thaliana. Plant J 3: 647-656
37. Tester M (1990) Plant ion channels: whole-cell and single-channel studies. New Phytol 114: 305-340
38. + channel. Pfluegers Arch 428: 422-424
39. + channel in Xenopus oocytes: analysis of macroscopic currents. Plant J 7: 321-332
40. + channel from potato, by heterologous expression in insect cells. Plant Physiol 116: 879-890