Plant protein phosphatases

Annual Review of Plant Physiology and Plant Molecular Biology

Volumn 47, Issue 1, 1996, Pages 101-125

  Smith, Robert D ^a   Walker, John C ^b  

^a RUTGERS UNIVERSITY   (United States)

^b UNIVERSITY OF MISSOURI   (United States)

Author keywords

Metabolism; Okadaic acid; Phosphorylation; Protein kinase; Signal transduction

Indexed keywords

MAMMALIA;

EID: 0000559118     PISSN: 10402519     EISSN: None     Source Type: Journal    
DOI: 10.1146/annurev.arplant.47.1.101     Document Type: Article

References (144)

1. Alessi DR, Street AJ, Cohen P, Cohen PTW. 1993. Inhibitor-2 functions like a chaperone to fold three expressed isoforms of mammalian protein phosphatase-1 into a conformation with the specificity and regulatory properties of the native enzyme. Eur. J. Biochem. 213:1055-66
2. Allen JF. 1992. Protein phosphorylation in regulation of photosynthesis. Biochim. Biophys. Acta 1098:275-35
3. Arino J, Pérez-Callejón E, Cunillera N, Camps M, Posas F, Ferrer A. 1993. Protein phosphatases in higher plants: multiplicity of type 2A phosphatases in Arabidopsis thaliana. Plant Mol. Biol 21:475-85
4. Arundhati A, Feiler H, Traas J, Zhang H, Lunness PA, Doonan JH. 1995. A novel Arabidopsis type 1 protein phosphatase is highly expressed in male and female tissues and functionally complements a conditional cell cycle mutant of Aspergillus. Plant J. 7:823-34
5. Axton JM, Dombradi V. Cohen PTW, Glover DM. 1990. One of the protein phosphatase 1 isoenzymes in Drosophila is essential for mitosis. Cell 63:33-46
6. Bennett J. 1980. Chloroplast phosphoproteins: evidence for a thylakoid-bound phosphoprotein phosphatase. Eur. J. Biochem. 104:85-89
7. Bennett J. 1991. Phosphorylation in green plant chloroplast. Annu. Rev. Plant Physiol. Plant Mol. Biol. 42:281-331
8. Bianchi MW, Guivarc'h D, Thomas M, Woodgett JR, Kreis M. 1994. Arabidopsis homologs of the shaggy and GSK-3 protein kinases: molecular cloning and functional expression in Escherichia coli. Mol. Gen. Genet. 242:337-45
9. Bollen M, Stalmans W. 1992. The structure, role, and regulation of type I protein phosphatases. Crit. Rev. Biochem. Mol. Biol. 27:227-81
10. + in fission yeast mitotic control. Cell 57:1009-16
11. Bowler C, Chua N-H. 1994. Emerging themes of plant signal transduction. Cell 6:1529-41
12. Brewis ND, Street AJ, Prescott AR. Cohen PTW. 1993. PPX, a novel protein serine/ threonine phosphatase localized to centrosomes. EMBO J. 12:987-96
13. Budde RJA, Randall DD. 1990. Protein kinases in higher plants. In Inositol Metabolism in Plants, ed. DJ Moore, WF Boss, pp. 351-67. New York: Liss
14. Cannon JF, Klemens K, Morcos P, Nair B, Pearson J, Khalil M. 1995, Type 1 protein phosphatase systems in yeast. Adv. Protein Phosphatases 9:215-36
15. Carter P, Nimmo H, Fewson C, Wilkins M. 1990. Bryophyllum fedtschenkoi protein phosphatase type 2A can dephosphorylate phosphoenolpyruvate carboxylase. FEBS Lett. 263:233-36
16. Casamayor A, Pérez-Callejón E, Pujol G, Ariño J, Ferrer A. 1994. Molecular characterization of a fourth isoform of the catalytic subunit of protein phosphatase 2A from Arabidopsis thaliana. Plant Mol. Biol. 26:523-28
17. Chen J, Martin BL. Brautigan DL. 1992. Regulation of protein serine/threonine phosphatase type-2A by tyrosine phosphorylation. Science 257:1261-64
18. Chen J, Parsons S, Brautigan DL. 1994. Tyrosine phosphorylation of protein phosphatase 2A in response to growth stimulation and v-src transformation of fibroblasts. J. Biol. Chem. 269:7957-62
19. Cheng HF, Tao M. 1989. Purification and characterization of a phosphotyrosyl-protein phosphatase from wheat seedlings. Biochem. Biophys. Acta 998:271-76
20. Cheng L, Stys D, Allen JF. 1995. Effects of synthetic peptides on thylakoid phosphoproteins. Physiol Plant 93:173-78
21. Cicirelli M. 1992. Inhibitors of protein serine/threonine phosphatases. Focus 14: 16-20
22. Clarke PR. 1994. Switching off MAP kinases. Curr. Biol. 4:647-50
23. Cohen P. 1989. Structure and regulation of protein phosphatases. Annu. Rev. Biochem. 58:453-508
24. Cohen PTW, Cohen P. 1989. Protein phosphatases come of age. J. Biol. Chem. 264: 21435-38
25. Crovello CS, Furie BC, Furie B. 1995. Histidine phosphorylation of p-selectin upon stimulation of human platelets: a novel pathway for activation-dependent signal transduction. Cell 82:279-86
26. da Cruz e Silva OB, da Cruz e Silva EF, Cohen PTW. 1988. Identification of a novel phosphatase catalytic subunit by cDNA cloning. FEBS Lett. 242:10610
27. Damuni Z, Guo H. 1993. Autophosphorylation activated protein kinase phosphorylates and inactivates protein phosphatase 2A. Proc. Natl. Acad. Sci. USA 90:2500-4
28. Denton RM, Randle PJ, Martin BR. 1972. Stimulation by calcium ions of the pyruvate dehydrogenase phosphatase. Biochem. J. 128:161-63
29. Després C, Subramaniam R, Matton DP, Brisson N. 1995. The activation of the potato PR-10a gene requires the phosphorylation of the nuclear factor PBF-1. Plant Cell 7:589-98
30. Dombradi V, Mann DJ, Saunders RD, Cohen PT. 1993. Cloning of the fourth functional gene for protein phosphatase 1 in Drosophila melanogaster from its chromosomal location. Eur. J. Biochem. 212: 177-83
31. Dominov JA, Stenzler L, Lee S, Schwarz JJ, Leisner S, Howell SH. 1992. Cytokinins and auxins control the expression of a gene in Nicotiana plubaginifolia cells by feedback regulation. Plant Cell 4:451-61
32. Evans IM, Fawcett T, Boulter D, Fordham-Skelton AP. 1994. A homologue of the 65-kDa regulatory subunit of protein phosphatase 2A in early pea (Pisum sativum L.) embryos. Plant Mol Biol. 24:689-95
33. 33P]phosphate. Proc. Natl. Acad. Sci. USA 91:952-56
34. - double mutant. Plant J. 4:81-87
35. François JM, Thompson-Jaeger S, Skroch J, Zellenka U, Spevak W, Tatchell K. 1992. GAC1 may encode a regulatory subunit for protein phosphatase type 1 in Saccharomyces cerevisiae. EMBO J. 11:87-96
36. Gellatly KS, Moorhead GBG, Duff SMG, Lefebvre DD, Plaxton WC. 1994. Purification and characterization of a potato tuber acid phosphatase having significant phosphotyrosine phosphatase activity. Plant Phvsiol. 106:223-32
37. Gianfagna TJ, Lawton MA. 1995. Specific activation of soybean defense genes by the phosphoprotein phosphatase inhibitor okadaic acid. Plant Sci. 109:165-70
38. Giraudat J. 1995. Abscisic acid signaling. Curr. Opin. Cell Biol. 7:232-38
39. Glaab J, Kaiser WM. 1993. Rapid modulation of nitrate reductase in pea roots. Planta 191:173-79
40. Guilroy S, Flicker MD, Read ND, Trewavas AJ. 1991. Role of calcium in signal transduction of Commelina guard cells. Plant Cell 3:333-44
41. Guo H, Reddy SAG, Damuni Z. 1993. Purification and characterization of a distinct autophosphorylation-activated protein kinase that phosphorylates and inactivates protein phosphatase 2A. J. Biol. Chem. 268:11193-98
42. Guo Y-L, Roux SJ. 1995. Partial purification and characterization of an enzyme from pea nuclei with protein tyrosine phosphatase activity. Plant Physiol. 107:167-75
43. Hasezawa S, Nagata T. 1992. Okadaic acid as a probe to analyse the cell cycle progression in plant cells. Bot. Acta 105:63-69
44. Healy AM, Zolnierowicz S, Stapleton AE, Goebl M, DePaoli RA, Pringle JR. 1991. CDC55, a Saccharomyces cerevisiae gene involved in cellular morphogenesis: identification, characterization, and homology to the B subunit of mammalian type 2A protein phosphatase. Mol. Cell. Biol. 11: 5767-80
45. Hubbard MJ, Cohen P. 1993. On target with a new mechanism for the regulation of protein phosphorylation. Trends Biochem. Sci. 18:172-77
46. Huber JL. Huber SC. Campbell WH, Redinbaugh MG. 1992. Reversible light/dark modulation of spinach leaf nitrate reductase activity involves protein phosphorylation. Arch. Biochem. Biophys. 296:58-65
47. Huber SC, Huber JL. 1990. Activation of sucrose-phosphate synthase from darkened spinach leaves by an endogenous protein phosphatase. Arch. Biochem. Biophys, 282: 421-26
48. Huber SC. Huber JL, Campbell WH, Redinbaugh MC. 1992. Comparative studies of the light modulation of nitrate reductase and sucrose-phosphate synthase activities in spinach leaves. Plant Physiol. 100: 706-12
49. Huber SC, Huber JL, Kaiser WM. 1994. Differential response of nitrate reductase and sucrose-phosphatase synthase-activation to inorganic and organic salts, in vitro and in situ. Physiol. Plant. 92:302-10
50. Huber SC, Huber JL, McMichael RW. 1994. Control of plant enzyme activity by reversible protein phosphorylation. Int. Rev. Cytol 149:47-98
51. Hunter T. 1995. Protein kinases and phosphatases: the yin and yang of protein phosphorylation and signaling. Cell 80:225-36
52. Ingebritsen TS, Cohen P. 1983. Protein phosphatases: properties and role in cellular regulation. Science 221:331-38
53. Jagiello I, Donella-Deana A, Szczegielniak J, Pinna LA, Muszynska G. 1992. Identification of protein phosphatase activities in maize seedlings. Biochim. Biophys. Acta 1134:129-36
54. Johnson K, DeLong A, Garbers C, Simmons C, Soll D. 1995. Auxin physiology mutants rcn1 and rgr1. Abstr. Int. Meet. Arabidopsis Res., 6th, Madison, Wis., p. 299
55. 2+ and 5′-AMP. Planta 193:358-64
56. Kaiser WM, Huber SC. 1994. Posttranslational regulation of nitrate reductase in higher plants. Plant Physiol. 106:817-21
57. Kandasamy MK, Thorsness MK, Rundle SJ, Goldberg MI, Nasrallah JB, Nasrallah ME. 1993. Ablation of papular cell function in Brassica flowers results in the loss of stigma receptivity to pollination. Plant Cell 5:263-75
58. 2+ uptake and callose synthesis in suspension-cultured cells of Catharanthus roseus are decreased by the protein phosphatase inhibitor okadaic acid. Physiol. Plant. 81: 309-12
59. Kinoshita N, Ohkura H, Yanagida M. 1990. Distinct, essential roles of type 1 and type 2A protein phosphatases in the control of the fission yeast cell cycle. Cell 63: 405-15
60. Kojima M, Wu S-J, Fukui H, Sugimoto T, Nanmori T, Oji Y. 1995. Phosphorylation/ dephosphorylation of Komatsuna (Brassica campestris) leaf nitrate reductase in vivo and in vitro in response to environmental light conditions: effects of protein kinase and protein phosphatase inhibitors. Physiol. Plant. 93:139-45
61. Koornneef M, Reuling G, Karssen CM. 1984. The isolation and characterization of abscisic acid-insensitive mutants of Arabidopsis thaliana. Physiol. Plant. 61:377-83
62. Kuromoni T, Yamamoto M. 1994. Cloning of cDNAs from Ambidopsis thaliana that encode putative protein phosphatase 2C and a human Dr1-like protein by transformation of a fission yeast mutant. Nucleic Acids Res. 22:5296-301
63. Lawson JE, Niu X-D, Browning KS,Trong HL, Van J, Reed LJ. 1993. Molecular cloning and expression of the catalytic subunit of bovine pyruvate dehydrogenase phosphatase and sequence similarity with protein phosphatase 2C. Biochemistry 32: 9887-93
64. Leung J, Bouvier-Durand M, Morris P-C, Guerrier D, Chefdor F, Giraudat J. 1994. Arabidopsis ABA response gene ABIl: features of a calcium-modulated protein phosphatase. Science 264:1448-52
65. + channels in two types of leaf cells. Plant Physiol. 106: 963-70
66. Lin PP-C, Mon T, Key JL. 1988. Phosphoprotein phosphatase from soybean hypocotyls. Plant Physiol. 66:368-74
67. + channels in guard cells. Proc. Natl. Acad. Sci. USA 90:2202-6
68. Lue M-Y, Lee H. 1994. Protein phosphatase inhibitors enhance the expression of an α-amylase gene, αAmy3, in cultured rice cells. Biochem. Biophys. Res. Commun. 205:807-16
69. MacKintosh C, Cohen P. 1989. Identification of high levels of type 1 and type 2A protein phosphatases in higher plants. Biochem. J. 262:335-39
70. MacKintosh C, Coggins J. Cohen P. 1991. Plant protein phosphatase: subcellular distribution, detection of protein phosphatase 2C and identification of protein phosphatase 2A as the major quinate dehydrogenase phosphatase. Biochem. J. 273: 733-38
71. MacKintosh C. 1992. Regulation of spinach leaf nitrate reductase by reversible phosphorylation. Biochim. Biophys. Acta 1137:121-26
72. MacKintosh C, Lyon GD, MacKintosh RW. 1994. Protein phosphatase inhibitors activate anti-fungal defence responses of soybean cotelydons and cell cultures. Plant J. 5:137-47
73. MacKintosh C, MacKintosh RW. 1994. Inhibitors of protein kinases and phosphatases. Trends Biochem. Sci. 19: 444-48
74. MacKintosh RW, Haycox G, Hardie DG, Cohen PTW. 1990. Identification by molecular cloning of two cDNA sequences from the plant Brassica napus which are very similar to mammalian protein phosphatases-1 and -2A. FEBS Lett. 276: 156-60
75. MacKintosh RW, Davies SP, Clarke PR, Weekes J, Gillespie JG, et al. 1992. Evidence for a protein kinase cascade in higher plants. Eur. J. Biochem. 209:923-31
76. Maeda T, Tsai AYM, Saito H. 1993. Mutations in protein tyrosine phosphatase gene (PTP2) and a protein serine/threonine phosphatase gene (PTC1) cause a synthetic growth defect in Saccharomyces cerevisiae. Mol. Cell. Biol. 13:5408-17
77. Mayer-Jaekel RE, Hemmings BA. 1994. Protein phosphatase 2A - a 'menage à trois.' Trends Cell Biol. 4:287-91
78. McNaughton GAL, MacKintosh C, Fewson CA, Wilkins MB, Nimmo HG. 1991. Illumination increases the phosphorylation state of maize leaf phosphoeno/pyruvate carboxylase by causing an increase in the activity of a protein kinase. Biochim. Biophys. Acta 1093:189-95
79. Meyer K, Leube MR Grill E. 1994. A protein phosphatase 2C involved in ABA signal transduction in Arabidopsis thaliana. Science 264:1452-55
80. Miernyk JA, Camp PJ, Randall DD. 1985. Regulation of plant pyruvate dehydrogenase complexes. Curr. Top. Plant Biochem. Physiol. 4:175-90
81. Miernyk JA, Randall DD. 1987. Some properties of pea mitochondrial phospho-pyruvate dehydrogenase-phosphatase. Plant Physiol. 83:311-15
82. cdc2 in vivo veritas? Cell 61:549-51
83. Mumby M, Walter G. 1993. Protein serine/threonine phosphatases: structure, regulation and functions in cell growth. Physiol. Rev. 73:673-99
84. Nitschke K, Fleig U, Schell J, Palme K. 1992. Complementation of the cs dis2-11 cell cycle mutant of Schizosaccharomyces pombe by a protein phosphatase from Arabidopsis thaliana. EMBO J. 11:1327-33
85. + gene required for chromosome disjoining encodes one of two putative type 1 protein phosphatases. Cell 57:997-1007
86. Ota IM, Varshavsky A. 1993. A yeast protein similar to bacterial two-component regulators. Science 262:566-69
87. Pay A, Jonak C, Bögre L, Meskiene I, Mairinger T, et al. 1993. The msK family of alfalfa protein kinase genes encodes homologues of shaggy/glycogen synthase kinase-3 and shows differential expression patterns in plant organs and development. Plant J. 3:847-56
88. Pay A, Pirck M, Bögre L, Hirt H, Heberle-Bors E. 1994. Isolation and characterization of phosphoprotein phosphatase 1 from alfalfa. Mol. Gen. Genet. 244:176-82
89. Pérez-Callejón E, Casamayor A, Pujol G, Clua E, Ferrer A, Arino J. 1993. Identification and molecular cloning of two homologues of protein phosphatase X from Arabidopsis thaliana. Plant Mol. Biol. 23: 1177-85
90. Pirck M, Pay A, Heberle-Bors E, Hirt H. 1993. Isolation and characterization of a phosphoprotein phosphatase 2A gene from alfalfa. Mol. Gen. Genet. 240:126-31
91. Polya GM, Haritou M. 1988. Purification and characterization of two wheat-embryo protein phosphatases. Biochem. J. 251: 357-63
92. Randall DD, Miernyk JA, David NR, Budde RJA, Schuller KA, et al. 1990. Phosphorylation of the leaf mitochondrial pyruvate dehydrogenase complex and inactivation of the complex in the light. Curr. Top. Plant Biochem. Physiol. 9:313-28
93. Ranjeva R, Boudet AM. 1987. Phosphorylation of protein in plants: regulatory effects and potential involvement in stimuli/response coupling. Annu. Rev. Plant Physiol. 38:73-93
94. Raz V, Fluhr R. 1993. Ethylene signal is transduced via protein phosphorylation events in plants. Plant Cell 5:523-30
95. + oxidoreductase activity through reversible phosphorylation in carrot cell suspensions. Planta 154:193-98
96. Renelt A, Colling C, Hahlbrock K, Nurnberger T, Parker JE, et al. 1993. Studies on elicitor recognition and signal transduction in plant defense. J. Exp. Bot. 44:257-68
97. Roeske CA, Kutny RM, Budde RJA, Chollet R. 1988. Sequence of the phosphothreonyl regulatory site peptide from inactive maize leaf pyruvate. orthophosphate dikinase. J. Biol. Chem. 263: 6683-87
98. Ruediger R, Hood JEV, Mumby M. Walter G. 1991. Constant expression and activity of protein phosphatase type 2A in synchronized cells. Mol. Cell. Biol. 11: 4282-85
99. Ruediger R, Roeckel D, Fait J, Bergqvist A, Magnusson F, Walter F. 1992. Identification of binding sites on the regulatory A subunit of protein phosphatase 2A for the catalytic C subunit and for tumor antigens of simian virus 40 and polyomavirus. Mol. Cell. Biol. 12:4872-82
100. Rundle SJ, Nasrallah JB. 1992. Molecular characterization of a type 1 serine/threonine phosphatase from Brassica oleracea. Plant Mol. Biol. 20:367-75
101. Rundle SJ, Nasrallah ME, Nasrallah JB. 1993. Effects of inhibitors of protein serine/threonine phosphatases on pollination in Brassica. Plant Physiol. 103:1165-71
102. Rundle SJ, Hartung AJ, Corum JW III, O'Neill M. 1995. Characterization of the 55-kDa B regulatory subunit of Arabidopsis protein phosphatase 2A. Plant Mol. Biol. 28:257-66
103. Schreiber SL. 1992. Immunophilin-sensi-tive phosphatase action in cell signaling pathways. Cell 70:365-68
104. Sheen J. 1993. Protein phosphatase activity is required for light-inducible gene expression in maize. EMBO J. 12:3497-505
105. Shenolikar S. 1992. A window opens on immunosuppression. Curr. Biol. 2:549-51
106. Shenolikar S, Nairn AC. 1991. Protein phosphatases: recent progress. Adv. Second Messenger Phosphoprotein Res. 23:1-121
107. Shenolikar S. 1994. Protein serine/threonine phosphatases: new avenues for cell regulation. Annu. Rev. Cell Biol. 10:55-86
108. Shima H, Haneji T, Hatano Y, Kasugai I, Sugimura T, Nagao M. 1993. Protein phosphatase 1γ2 is associated with nuclei of meiotic cells in rat testis. Biochem. Biophys. Res. Commun. 194:930-37
109. Shima H, Hatano Y, Chun Y-S, Sugimura T, Zhang Z, et al. 1993. Identification of PP1 catalytic subunit isotypes PP1γ, PP1δ and PP1α in various rat tissues. Biochem. Biophys. Res. Commun. 192:1289-96
110. Siegl G, MacKintosh C, Stitt M. 1990. Sucrose-phosphatse synthase is dephosphorylated by protein phosphatase 2A in spinach leaves. FEBS Lett. 270:198-202
111. Silverstein T, Chang L, Allen JF. 1993. Chloroplast thylakoid protein phosphatase reactions are redox-independent and kinetically heterogeneous. FEBS Lett. 334:101-5
112. Slabas AR, Fordham-Skelton AP, Fletcher D, Martinez-Rivas JM, Swinhoe R, et al. 1994. Characterization of cDNA and genomic clones encoding homologues of the 65-kDa regulatory subunit of protein phosphatase 2A in Arabidopsis thaliana. Plant Mol. Biol. 26:1125-38
113. Smith RD, Walker JC. 1991. Isolation and expression of a maize type 1 protein phosphatase. Plant Physiol. 97:677-83
114. Smith RD, Walker JC. 1993. Expression of multiple type 1 protein phosphoprotein phosphatases in Arabidopsis thaliana. Plant Mol. Biol. 21:307-16
115. Smith RD, Wilson JE, Walker JC, Baskin TI. 1994. Protein-phosphatase inhibitors block root hair growth and alter cortical cell shape of Arabidopsis roots. Planta 194: 516-24
116. Smith RD, Lin Q, Cannon JF, Walker JC. 1995. Type-1 and Type-2C protein phosphatases of higher plants. Adv. Protein Phosphatases 9:105-20
117. Spanu P, Grosskopf DG, Felix G, Boller T. 1994. The apparent turnover of 1-aminocyclopropane-1-carboxylate synthase in tomato cells is regulated by protein phosphorylation and dephosphorylation. Plant Physiol. 106:529-35
118. Stark MJR, Black S, Sneddon AA, Andrews PD. 1994. Genetic analyses of yeast protein serine/threonine phosphatases. FEMS Microbiol Lett. 117:121-30
119. Stitt M, Wilke I, Feil R, Heldt HW. 1988. Coarse control of sucrose-phosphatae synthase in leaves: alteration of the kinetic properties in response to the rate of photosynthesis and the accumulation of sucrose. Planta 174:217-30
120. Stone EM, Yamano H, Kinoshita N, Yanagida M. 1993. Mitotic regulation of protein phosphatases by the fission yeast sds22 protein. Curr. Biol. 3:13-26
121. Stone JM, Collinge MA, Smith RD, Horn MA, Walker JC. 1994. Interaction of a protein phosphatase with an Arabidopsis serine-threonine receptor kinase. Science 266: 793-95
122. Stone JM, Walker JC. 1995. Protein kinase families and signal transduction. Plant Physiol. 108:451-57
123. Stuart JK, Frederick DL, Varner CM, Tatchell K. 1994. The mutant type 1 protein phosphatase encoded by glc7-1 from Saccharomyces cerevisiae fails to interact productively with the GAC7-encoded regulatory subunit. Mol. Cell. Biol. 14: 896-905
124. Sun G, Bailey D, Jones MW, Markwell J. 1989. Chloroplast thylakoid protein phosphatase is a membrane surface-associated activity. Plant Physiol. 89:238-43
125. Sun G, Markwell J. 1992. Lack of type 1 and type 2 A protein serine(P)/threonine (P) phosphatase activities in chloroplasts. Plant Physiol. 100:620-24
126. Sun G, Sarath G, Markwell J. 1993. Phosphopeptides as substrates for thylakoid protein phosphatase activity. Arch. Biochem. Biophys. 304:490-95
127. Sun H, Tonks NK. 1994. The coordinated action of protein tyrosine phosphatases and kinases in cell signaling. Trends Biochem. Sci. 19:480-85
128. Suzuki K, Shinshi H. 1995. Transient activation and tyrosine phosphorylation of a protein kinase in tobacco cells treated with a fungal elicitor. Plant Cell 7:639-47
129. Takeda S, Mano S, Ohio MA, Nakamura K. Inhibitors of protein phosphatase 1 and 2A block sugar-inducible gene expression in plants. Plant Physiol. 106:567-74
130. + currents in guard cells of Vicia faba. Plant J. 5:523-30
131. Torruella M, Casano LM, Vallejos RH. 1986. Evidence of the activity of tyrosine kinase(s) and the presence of phosphotyrosine proteins in pea plantlets. J. Biol. Chem. 261:6651-53
132. Uemura T, Shiomi K, Togashi S, Takeichi M. 1993. Mutation of twins encoding a regulator of protein phosphatase 2A leads to pattern duplication in Drosophila imaginal discs. Genes Dev. 7:429-40
133. van der Geer P, Hunter T, Lindberg RA. 1994. Receptor protein-tyrosine kinases and their signal transduction pathways. Annu. Rev. Cell Biol. 10:251-337
134. van Zyl WH, Huang W, Sneddon AA, Stark M, Camier S, et al. 1992. Inactivation of the protein phosphatase 2A regulatory subunit A results in morphological and transcriptional defects in Saccharomyces cerevisiae. Mol. Cell. Biol. 12:4946-59
135. Vera-Estrella R, Higgins VJ, Blumwald E. 1994. Plant defense response to fungal pathogens. Plant Physiol. 106:97-102
136. Viard M-P, Martin F, Pugin A, Ricci P, Blein J-P. 1994. Protein phosphorylation is induced in tobacco cells by the elicitor cryptogein. Plant Physiol. 104:1245-49
137. Walker JC. 1994. Structure and function of the receptor-like protein kinase of higher plants. Plant Mol. Biol. 26:1599-609
138. Walker RP, Leegood RC. 1995. Purification, and phosphorylation in vivo and in vitro, of phosphoenolpyruvate carboxykinase from cucumber cotyledons. FEBS Lett. 362:70-74
139. Weiner H, Stitt M. 1993. Sucrose-phosphate synthase phosphatase, a type 2A protein phosphatase, changes its sensitivity towards inhibition by inorganic phosphatase in spinach leaves. FEBS Lett. 333:159-64
140. Wolniak SM, Larsen PM. 1992. Changes in the metaphase transit times and the pattern of sister chromatid separation in stamen hair cells of Tradescantia after treatment with protein phosphatase inhibitors. J. Cell Sci. 102:691-715
141. Yamano H, Ishii K, Yanagida M. 1994. Phosphorylation of dis2 protein phosphatase at the C-terminal cdc2 consensus and its potential role in cell cycle regulation. EMBO J. 13:5310-18
142. Yang C-M, Danko SJ, Markwell JP. 1987. Thylakoid acid phosphatase and protein phosphatase activities in wheat (Triticum aestivum L.). Plant Sci. 48:17-22
143. Zhang K, Tsukitani Y, John CL. 1992. Mitotic arrest in tobacco caused by the phosphoprotein phosphatase inhibitor okadaic acid. Plant Cell Physiol. 33:677-88
144. Zimmermann S, Thomine S, Guern J, Barbier-Brygoo H. 1994. An anion current at the plasma membrane of tobacco protoplasts shows ATP-dependent voltage regulation and is modulated by auxin. Plant J. 6:707-16