Abstract
NADP-malic enzyme (NADP-ME) is involved in different metabolic pathways in several organisms due to the relevant physiological functions of the substrates and products of its reaction. In plants, it is one of the most important proteins that were recruited to fulfil key roles in C4 photosynthesis. Recent advances in genomics allowed the characterization of the complete set of NADP-ME genes from some C3 species, as Arabidopsis thaliana and Oryza sativa; however, the characterization of the complete NADP-ME family from a C4 species has not been performed yet. In this study, while taking advantage of the complete Zea mays genome sequence recently released, the characterization of the whole NADP-ME family is presented. The maize NADP-ME family is composed of five genes, two encoding plastidic NADP-MEs (ZmC4- and ZmnonC4-NADP-ME), and three cytosolic enzymes (Zmcyt1-, Zmcyt2-, and Zmcyt3-NADP-ME). The results presented clearly show that each maize NADP-ME displays particular organ distribution, response to stress stimuli, and differential biochemical properties. Phylogenetic footprinting studies performed with the NADP-MEs from several grasses, indicate that four members of the maize NADP-ME family share conserved transcription factor binding motifs with their orthologs, indicating conserved physiological functions for these genes in monocots. Based on the results obtained in this study, and considering the biochemical plasticity shown by the NADP-ME, it is discussed the relevance of the presence of a multigene family, in which each member encodes an isoform with particular biochemical properties, in the evolution of the C4 NADP-ME, improved to fulfil the requirements for an efficient C4 mechanism.
Similar content being viewed by others
References
Alvarez CE, Detarsio E, Moreno S, Andreo CS, Drincovich MF (2012) Functional characterization of residues involved in redox modulation in maize photosynthetic NADP-malic enzyme activity. Plant Cell Physiol 53:1144–1153. doi:10.1093/pcp/pcs059
Arias CA, Drincovich MF, Andreo CS, Gerrard Wheeler MC (2013) Fumarate and cytosolic pH as modulators of the synthesis or consumption of C4 organic acids through NADP-malic enzyme in Arabidopsis thaliana. Plant Mol Biol 81:297–307
Aubry S, Brown NJ, Hibberd JM (2011) The role of proteins in C(3) plants prior to their recruitment into the C(4) pathway. J Exp Bot 62:3049–3059. doi:10.1093/jxb/err012
Casati P, Drincovich MF, Edwards GE, Andreo CS (1999) Malate metabolism through NADP-malic enzyme in plant defense. Photosynth Res 61:99–105. doi:10.1590/S0100-879X1999001000002
Chang Y-M, Liu W-Y, Shih AC-C, Shen M-N, Lu C-H, Lu M-YJ, Yang H-W, Wang TY, Chen SC, Chen SM, Li WH, Ku MS (2012) Characterizing regulatory and functional differentiation between maize mesophyll and bundle sheath cells by transcriptomic analysis. Plant Physiol 160:165–177. doi:10.1104/pp.112.203810
Chi W, Yang J, Wu N, Zhang F (2004) Four rice genes encoding NADP malic enzyme exhibit distinct expression profiles. Biosci Biotechnol Biochem 68:1865–1874. doi:10.1271/bbb.68.1865
Choi H, Hong J, Ha J, Kang J, Kim SY (2000) ABFs, a family of ABA-responsive element binding factors. J Biol Chem 275:1723–1730. doi:10.1074/jbc.275.3.1723
Christin P-A, Samaritani E, Petitpierre B, Salamin N, Besnard G (2009) Evolutionary insights on C4 photosynthetic subtypes in grasses from genomics and phylogenetics. Genome Biol Evol 1:221–230
Cushman JC (1992) Characterization and expression of a NADP-malic enzyme cDNA induced by salt stress from the facultative crassulacean acid metabolism plant, Mesembryanthemun crystallinum. Eur J Biochem 208:259–266
de Pater S, Greco V, Pham K, Memelink J, Kijne J (1996) Characterization of a zinc-dependent transcriptional activator from arabidopsis. Nucl Acids Res 24:4624–4631. doi:10.1093/nar/24.23.4624
Detarsio E, Gerrard Wheeler MC, Campos Bermúdez VA, Andreo CS, Drincovich MF (2003) Maize C4 NADP-malic enzyme. Expression in Escherichia coli and characterization of site-direct mutants at the putative nucleotide-binding sites. J Biol Chem 278:13757–13764. doi:10.1074/jbc.M212530200
Detarsio E, Alvarez CE, Saigo M, Andreo CS, Drincovich MF (2007) Identification of domains involved in tetramerization and malate inhibition of maize C4 NADP-malic enzyme. J Biol Chem 282:6053–6060. doi:10.1074/jbc.M609436200
Detarsio E, Maurino VG, Alvarez CE, Müller GL, Andreo CS, Drincovich MF (2008) Maize cytosolic NADP-malic enzyme (ZmCytNADP-ME): a phylogenetically distant isoform specifically expressed in embryo and young root. Plant Mol Biol 68:355–367. doi:10.1007/s11103-008-9375-8
Doubnerová V, Ryšlavá H (2011) What can enzymes of C4 photosynthesis do for plants under stress? Plant Sci 180:575–583
Drincovich MF, Casati P, Andreo CS, Donahue R, Edwards GE (1998) UV-B induction of NADP-malic enzyme in etiolated maize seedlings. Plant Cell Environ 21:63–70. doi:10.1046/j.1365-3040.1998.00240.x
Drincovich MF, Casati P, Andreo CS (2001) NADP-malic enzyme from plants: a ubiquitous enzyme involved in different metabolic pathways. FEBS Lett 490:1–6
Drincovich MF, Lara M, Maurino VG, Andreo C (2010) C4 decarboxylases. Different solutions for the same biochemical problem, the provision of CO2 in the bundle sheath cells. In: Raghavendra A, Sage RF (eds) C4 photosynthesis and related CO2 concentrating mechanisms. Springer, Heidelberg, pp 277–300
Eastmond PJ, Dennis DT, Rawsthorne S (1997) Evidence that a malate/inorganic phosphate exchange translocator imports carbon across the leucoplast envelope for fatty acid synthesis in developing castor seed endosperm. Plant Physiol 114:851–856. doi:10.1104/pp.114.3.851
Edwards GE, Walker DA (1983) C3, C4: mechanisms, and cellular and environmental regulation, of photosynthesis. Blackwell Scientific publications, Oxford
Emanuelsson O, Nielsen H, von Heijne G (1999) ChloroP, a neural network-based method for predicting chloroplast transit peptides and their cleavage sites. Protein Sci 8:978–984. doi:10.1110/ps.8.5.978
Emanuelsson O, Nielsen H, Brunak S, von Heijne G (2000) Predicting subcellular localization of proteins based on their N-terminal amino acid sequence. J Mol Biol 300:1005–1016. doi:10.1006/jmbi.2000.3903
Estavillo GM, Rao SK, Reiskind JB, Bowes G (2007) Characterization of the NADP malic enzyme gene family in the facultative, single-cell C4 monocot Hydrilla verticillata. Photosynth Res 1:43–57. doi:10.1007/s11120-007-9212-y
Feller A, Machemer K, Braun EL, Grotewold E (2011) Evolutionary and comparative analysis of MYB and bHLH plant transcription factors. Plant J 66:94–116. doi:10.1111/j.1365-313X.2010.04459.x
Finkelstein RR, Wang ML, Lynch TJ, Rao S, Goodman HM (1998) The Arabidopsis abscisic acid response locus ABI4 encodes an APETALA2 domain protein. Plant Cell 10:1043–1054. doi:10.1105/tpc.12.4.599
Franke KE, Adams DO (1995) Cloning a full-length cDNA for malic enzyme (EC 1.1.40.) from grape berries. Plant Physiol 107:1009–1010. doi:10.1104/pp.107.3.1009
Furbank RT (2011) Evolution of the C(4) photosynthetic mechanism: are there really three C(4) acid decarboxylation types? J Exp Bot 62:3103–3108. doi:10.1093/jxb/err080
Fushimi T, Umeda M, Shimazaki T, Kato A, Toriyama K, Uchimiya H (1994) Nucleotide sequence of a rice cDNA similar to a maize NADP-dependent malic enzyme. Plant Mol Biol 24:965–967. doi:10.1007/BF00014450
Gerrard Wheeler MC, Tronconi MA, Drincovich MF, Andreo CS, Flügge U, Maurino VG (2005) A comprehensive analysis of the NADP-malic enzyme gene family of Arabidopsis. Plant Physiol 139:39–51. doi:10.1104/pp.105.065953.1
Gerrard Wheeler MC, Arias CL, Tronconi MA, Maurino VG, Andreo CS, Drincovich MF (2008) Arabidopsis thaliana NADP-malic enzyme isoforms: high degree of identity but clearly distinct properties. Plant Mol Biol 67:231–242. doi:10.1007/s11103-008-9313-9
Gerrard Wheeler MC, Arias C, Maurino VG, Andreo CS, Drincovich MF (2009) Identification of domains involved in the allosteric regulation of cytosolic Arabidopsis thaliana NADP-malic enzymes. FEBS J. 276:5665–5677. doi:10.1111/j.1742-4658.2009.07258.x
Goodstein DM, Shu S, Howson R, Neupane R, Hayes RD, Fazo J, Mitros T, Dirks W, Hellsten U, Putnam N, Rokhsar DS (2011) Phytozome: a comparative platform for green plant genomics. Nucl Acids Res 40:1–9. doi:10.1093/nar/gkr944
Gu Q, Ferrándiz C, Yanofsky MF, Martienssen R (1998) The FRUITFULL MADS-box gene mediates cell differentiation during Arabidopsis fruit development. Development 125:1509–1517
Hatch MD (1987) C4 photosynthesis: a unique blend of modified biochemistry, anatomy and ultrastructure. Biochim Biophys Acta 895:81–106
Heim MA, Jakoby M, Werber M, Martin C, Weisshaar B, Bailey PC (2003) The basic helix-loop-helix transcription factor family in plants: a genome-wide study of protein structure and functional diversity. Mol Biol Evol 20:735–747. doi:10.1093/molbev/msg088
Hellemans J, Mortier G, De Paepe A, Speleman F, Vandesompele J (2007) qBase relative quantification framework and software for management and automated analysis of real-time quantitative PCR data. Genome Biol 8:R19. doi:10.1186/gb-2007-8-2-r19
Hobo T, Kowyama Y, Hattori T (1999) A bZIP factor, TRAB1, interacts with VP1 and mediates abscisic acid-induced transcription. PNAS 96:15348–15353. doi:10.1073/pnas.96.26.15348
Hofacker IL (2003) Vienna RNA secondary structure server. Nucleic Acids Res 31:3429–3431. doi:10.1093/nar/gkg599
Honda H, Shimada H, Akagi H (1997) Isolation of cDNA for an NADP-malic enzyme from Aloe arborescens. DNA Res 4:397–400. doi:10.1093/dnares/4.6.397
Honda H, Akagi H, Shimada H (2000) An isozyme of the NADP-malic enzyme of a CAM plant, Aloe arborescens, with variation on conservative amino acid residues. Gene 243:85–92
Izawa T, Foster R, Nakajima M, Shimamoto K, Chua NH (1994) The rice bZIP transcriptional activator RITA-1 is highly expressed during seed development. Plant Cell 6:1277–1287. doi:10.1105/tpc.6.9.1277
Jothi R, Cuddapah S, Barski A, Cui K, Zhao K (2008) Genome-wide identification of in vivo protein-DNA binding sites from ChIP-Seq data. Nucleic Acids Res 36:5221–5231. doi:10.1093/nar/gkn488
Katagiri F, Lam E, Chua NH (1989) Two tobacco DNA-binding proteins with homology to the nuclear factor CREB. Nature 340:727–730. doi:10.1038/340727a0
Kawaoka A, Kaothien P, Yoshida K, Endo S, Yamada K, Ebinuma H (2000) Functional analysis of tobacco LIM protein Ntlim1 involved in lignin biosynthesis. Plant J 22:289–301. doi:10.1046/j.1365-313x.2000.00737.x
Kunieda T, Mitsuda N, Ohme-Takagi M, Takeda S, Aida M, Tasaka M, Kondo M, Nishimura M, Hara-Nishimura I (2008) NAC family proteins NARS1/NAC2 and NARS2/NAM in the outer integument regulate embryogenesis in Arabidopsis. Plant Cell 20:2631–2642. doi:10.1105/tpc.108.060160
Lai LB, Tausta SL, Nelson TM (2002) Differential regulation of transcripts encoding cytosolic NADP-malic enzyme in C3 and C4 Flaveria species. Plant Physiol 128:140–149. doi:10.1104/pp.010449
Langdale JA (2011) C4 cycles: past, present, and future research on C4 photosynthesis. Plant Cell 23:3879–3892. doi:10.1105/tpc.111.092098
Laporte MM, Shen B, Tarczynski MC (2002) Engineering for drought avoidance: expression of maize NADP-malic enzyme in tobacco results in altered stomatal function. J Exp Bot 3:699–705. doi:10.1093/jexbot/53.369.699
Lee J, Lee I (2010) Regulation and function of SOC1, a flowering pathway integrator. J Exp Bot 6:2247–2254. doi:10.1093/jxb/erq098
Li P, Ponnala L, Gandotra N, Wang L, Si Y, Tausta SR, Kebrom TH, Provart N, Patel R, Myers CR, Reidel EJ, Turgeon R, Liu P, Sun Q, Nelson T, Brutnell TP (2010) The developmental dynamics of the maize leaf transcriptome. Nat Genet 42:1060–1069. doi:10.1038/ng.7031060
Lipka B, Steinmüller K, Rosche E, Borsch D, Westhoff P (1994) The C3 plant Flaveria pringlei contains a plastidic NADP-malic enzyme which is orthologous to the C4 isoform of the C4 plant F. trinervia. Plant Mol Biol 26:1775–1783. doi:10.1007/BF00019491
Liu W, Saint DA (2002) Validation of a quantitative method for real time PCR kinetics. Biochem Biophys Res Commun 294:347–353. doi:10.1016/S0006-291X
Liu H, Han H, Li J, Wong L (2005) DNAFSMiner: a web-based software toolbox to recognize two types of functional sites in DNA sequences. Bioinformatics 21:671–673. doi:10.1093/bioinformatics/bth437
Liu X, Fu J, Gu D, Liu W, Liu T, Peng Y, Wang J, Wang G (2008) Genome-wide analysis of gene expression profiles during the kernel development of maize (Zea mays L.). Genomics 91:378–387. doi:10.1016/j.ygeno.2007.12.002
López-Becerra E, Puigdomenech P, Stiefel V (1998) A gene coding for a malic enzyme expressed in the embryo root epidermis from Zea mays (Accession No. AJ224847) (PGR98-081). Plant Physiol 117:332
Maddaloni M, Donini G, Balconi C, Rizzi E, Gallusci P, Forlani F, Lohmer S, Thompson R, Salamini F, Motto M (1996) The transcriptional activator Opaque-2 controls the expression of a cytosolic form of pyruvate orthophosphate dikinase-1 in maize endosperms. Mol Gen Genet 250:647–654. doi:10.1007/s004380050117
Manoli A, Sturaro A, Trevisan S, Quaggiotti S, Nonis A (2012) Evaluation of candidate reference genes for qPCR in maize. J Plant Physiol 169:807–815. doi:10.1016/j.jplph.2012.01.019
Martinez-Garcia JF, Moyano E, Alcocer MJC, Martin C (1998) Two bZIP proteins from Antirrhinum flowers referentially bind a hybrid C-box/G-box motif and help to define a new sub-family of bZIP transcription factors. Plant J 13:489–505. doi:10.1046/j.1365-313X.1998.00050.x
Martinoia E, Rentsch D (1994) Malate compartmentation: responses to a complex metabolism. Annu Rev Plant Physiol Plant Mol Biol 45:447–467. doi:10.1146/annurev.pp.45.060194.002311
Maurino VG, Drincovich MF, Casati P, Andreo CS, Edwards GE, Ku MSB, Gupta SK, Franceschi VR (1997) NADP-malic enzyme: immunolocalization in different tissues of the C4 plant maize and the C3 plant wheat. J Exp Bot 48:799–811. doi:10.1093/jxb/48.3.799
Maurino VG, Saigo M, Andreo CS, Drincovich MF (2001) Nonphotosynthetic NADP-malic enzyme from maize: a constitutively expressed enzyme that responds to plant defense inducers. Plant Mol Biol 45:409–420. doi:10.1023/A:1010665910095
Maurino VG, Gerrard Wheeler MC, Andreo CS, Drincovich MF (2009) Redundancy is sometimes seen only by the uncritical: does Arabidopsis need six malic enzyme isoforms? Plant Sci 176:715–721. doi:10.1016/j.plantsci.2009.02.012
Mikami K, Sakamoto A, Iwabuchi M (1994) The HBP-1 family of wheat basic leucine zipper proteins interacts with overlapping & acting hexamer motifs of plant histone genes. J Biol Chem 269:9974–9985
Monte E, Tepperman JM, Al-Sady B, Kaczorowski KA, Alonso JM, Ecker JR, Li X, Zhang Y, Quail PH (2004) The phytochrome-interacting transcription factor, PIF3, acts early, selectively, and positively in light-induced chloroplast development. Proc Natl Acad Sci 101:16091–16098. doi:10.1073/pnas.0407107101
Mukherjee K, Choudhury AR, Gupta B, Gupta S, Sengupta DN (2006) An ABRE-binding factor, OSBZ8, is highly expressed in salt tolerant cultivars than in salt sensitive cultivars of indica rice. BMC Plant Biol 6:1–14. doi:10.1186/1471-2229-6-18
Müller D, Schmitz G, Theres K (2006) Blind homologous R2R3 Myb genes control the pattern of lateral meristem initiation in Arabidopsis. Plant Cell 18:586–597. doi:10.1105/tpc.105.038745
Müller GL, Drincovich MF, Andreo CS, Lara MV (2008) Nicotiana tabacum NADP-malic enzyme: cloning, characterization and analysis of biological role. Plant Cell Physiol 49:469–480. doi:10.1093/pcp/pcn022
Nakano T, Nishiuchi T, Suzuki K, Fujimura T, Shinshi H (2006) Studies on transcriptional regulation of endogenous genes by ERF2 transcription factor in tobacco cells. Plant Cell Physiol 47:554–558. doi:10.1093/pcp/pcj017
Ni M, Tepperman JM, Quail PH (1998) PIF3, a phytochrome-interacting factor necessary for normal photoinduced signal transduction, is a novel basic helix-loop-helix protein. Cell 95:657–667. doi:10.1016/S0092-8674(00)81636-0
Niu X, Guiltinan MJ (1994) DNA binding specificity of the wheat bZIP protein EmBP-1. Nucleic Acids Res 22(23):4969–4978. doi:10.1093/nar/22.23.4969
Obayashi T, Kinoshita K (2010) Coexpression landscape in ATTED-II: usage of gene list and gene network for various types of pathways. J Plant Res 123:311–319. doi:10.1007/s10265-010-0333-6
Oeda K, Salinas J, Chua NH (1991) A tobacco bZip trancription activator (TAF-1) binds to a G-box motif conserved in plant genes. EMBO J 10:1793–1802
Outlaw WH, Manchester J, Brown PH (1981) High levels of malic enzyme activities in Vicia faba L. epidermal tissue. Plant Physiol 68:1047–1051. doi:10.1104/pp.68.5.1047
Ovcharenko I, Loots GG, Giardine BM, Hou M, Ma J, Hardison RC, Stubbs L, Miller W (2005) Mulan: multiple-sequence local alignment and visualization for studying function and evolution. Genome Res 15:184–194. doi:10.1101/gr.300720
Paz-Ares J, Ghosal D, Wienand U, Peterson PA, Saedler H (1987) The regulatory c1 locus of Zea mays encodes a protein with homology to myb proto-oncogene products and with structural similarities to transcriptional activators. EMBO J 6:3553–3558
Pfaffl MW (2001) A new mathematical model for relative quantification in real-time RT-PCR. Nucleic Acids Res 1(29):e45. doi:10.1093/nar/29.9.e45
Pick TR, Andrea Bräutigam A, Schlüter U, Denton AK, Colmsee C, Scholz U, Fahnenstich H, Pieruschka R, Rascher U, Sonnewald U, Weber APM (2011) Systems analysis of a maize leaf developmental gradient redefines the current C4 model and provides candidates for regulation. Plant Cell 23:1–13. doi:10.1105/tpc.111.090324
Sage RF, Zhu X-G (2011) Exploiting the engine of C(4) photosynthesis. J Exp Bot 62:2989–3000. doi:10.1093/jxb/err179
Saigo M, Bologna F, Maurino VG, Detarsio E, Andreo CS, Drincovich MF (2004) Maize recombinant non-C4 NADP-malic enzyme: a novel dimeric malic enzyme with high specific activity. Plant Mol Biol 55:97–107. doi:10.1007/s11103-004-0472-z
Saigo M, Alvarez CE, Andreo CS, Drincovich MF (2013) Plastidial NADP-malic enzymes from grasses: unraveling the way to the C4 specific isoforms. Plant Physiol Biochem 63:39–48. doi:10.1016/j.plaphy.2012.11.009
Sato Y, Takehisa H, Kamatsuki K, Minami H, Namiki N, Ikawa H, Ohyanagi H (2013) RiceXPro Version 3.0: expanding the informatics resource for rice transcriptome. Nucleic Acids Res 41:1206–1213. doi:10.1093/nar/
Schaaf J, Walter MH, Hess D (1995) Primary metabolism in plant defense (regulation of a bean malic enzyme gene promoter in transgenic tobacco by developmental and environmental cues). Plant Physiol 108:949–960. doi:10.1104/pp.108.3.949
Schmidt RJ, Ketudat M, Aukerman MJ, Hoschek G (1992) Opaque-2 is a transcriptional activator that recognizes a specific target site in 22-kD zein genes. Plant Cell 4:689–700
Schnable PS, Ware D, Fulton RS, Stein JC, Wei F, Pasternak S, Liang C, Zhang J, Fulton L et al (2009) The B73 maize genome: complexity, diversity, and dynamics. Science 326:1112–1115. doi:10.1126/science.1178534
Sell S, Hehl R (2004) Functional dissection of a small anaerobically induced bZIP transcription factor from tomato. Eur J Biochem 271:4534–4544. doi:10.1111/j.1432-1033.2004.04413.x
Sibéril Y, Doireau P, Gantet P (2001) Plant bZIP G-box binding factors. Modular structure and activation mechanisms. Eur J Biochem 268:5655–5666. doi:10.1046/j.0014-2956.2001.02552.x
Singh K, Dennis ES, Ellis JG, Llewellyn DJ, Tokuhisa JG, Wahleithner JA, Peacock WJ (1990) OCSBF-1, a maize ocs enhancer binding factor: isolation and expression during development. Plant Cell. doi:10.1105/tpc.2.9.891
Smith RG, Gauthier DA, Dennis DT, Turpin DH (1992) Malate and pyruvate-dependent fatty acid synthesis in leucoplasts from developing castor endosperm. Plant Physiol 98:1233–1238. doi:10.1104/pp.98.4.1233
Solano R, Nieto C, Paz-Ares J (1995) MYB.Ph3 transcription factor from Petunia hybrida induces similar DNA-bending/distortions on its two types of binding site. Plant J 8:673–682. doi:10.1046/j.1365-313X.1995.08050673.x
Tamura K, Peterson D, Peterson N, Stecher G, Nei M, Kumar S (2011) MEGA5: molecular evolutionary genetics analysis using maximum likelihood, evolutionary distance, and maximum parsimony methods. Mol Biol Evol 28:2731–2739. doi:10.1093/molbev/msr121
Van Doorsselaere J, Villarroel R, Van Montagu M, Inzé D (1991) Nucleotide sequence of a cDNA encoding malic enzyme from poplar. Plant Physiol 96:1385–1386
Veach YK, Martin RC, Mok DWS, Malbeck J, Vankova R, Mok MC (2003) O-glycosylation of cis-zeatin in maize. Characterization of genes, enzymes, and endogenous cytokinins. Plant Physiol 131:1374–1380. doi:10.1104/pp.017210
von Caemmerer S (2003) Furbank RT (2003) The C(4) pathway: an efficient CO(2) pump. Photosynth Res 77(2–3):191–207
Walter MH, Grima-Pettenatti J, Feuillet C (1994) Characterization of a bean (Phaseolus vulgaris L.) malic enzyme gene. Eur J Biochem 224:999–1009. doi:10.1111/j.1432-1033.1994.t01-1-00999.x
Wasserman WW, Sandelin A (2004) Applied bioinformatics for the identification of regulatory elements. Nat Rev Genet 5:276–287. doi:10.1038/nrg1315
Watson L, Dallwitz (1992) The grass genera of the world. C.A.B International, Wallingford
Wong AYM, Colasanti J (2007) Maize floral regulator protein INDETERMINATE1 is localized to developing leaves and is not altered by light or the sink/source transition. J Exp Bot 58:403–414. doi:10.1093/jxb/erl206
Xue G-P, Bower NI, McIntyre CL, Riding GA, Kazan K, Shorter R (2006) TaNAC69 from the NAC superfamily of transcription factors is up-regulated by abiotic stresses in wheat and recognises two consensus DNA-binding sequences. Funct Plant Biol 33:43–57. doi:10.1071/FP05161
Acknowledgments
CSA, MFD and MS are members of the Researcher Career of Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET, Argentina) and CEA and EM are fellows of the same institution. We thank Dr. Marcos A. Tronconi for the helpful discussion of sequence analysis. This study has been supported by National Agency for Promotion of Science and Technology (ANPCyT) and CONICET.
Author information
Authors and Affiliations
Corresponding author
Additional information
Clarisa E. Alvarez and Mariana Saigo contributed equally to this study.
Electronic supplementary material
Below is the link to the electronic supplementary material.
11120_2013_9839_MOESM1_ESM.tif
Supplemental Fig. 1 Expression levels of all NADP-ME transcripts in different parts of maize plant Data correspond to the transcript levels in different samples in relation to the expression found for actin1 reference gene. The values obtained are indicated above each bar. The abscissa indicates the samples tested: leaf blades (L); stems (St); roots (R); leaf sheaths (Sh); immature tassels (T); immature ears (E) and 14DAP grains (G). In all the cases, data represent the mean (±SD) of three independent assays (TIFF 186 kb)
11120_2013_9839_MOESM4_ESM.xlsx
Supplemental Table 3 Rice coexpressed transcription factor genes that could putatively bind to the TFBS detected. The genes from O. sativa that share evolutionary conserved TFBS with Z. mays genes were analyzed with RiceFREND web tool. Mutual rank (MR) is the coexpression strength measure. MR = 1 corresponds to the strongest coexpression (XLSX 161 kb)
Rights and permissions
About this article
Cite this article
Alvarez, C.E., Saigo, M., Margarit, E. et al. Kinetics and functional diversity among the five members of the NADP-malic enzyme family from Zea mays, a C4 species. Photosynth Res 115, 65–80 (2013). https://doi.org/10.1007/s11120-013-9839-9
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s11120-013-9839-9