Journal of Plant Research

, Volume 124, Issue 4, pp 467–475 | Cite as

The ABA-mediated switch between submersed and emersed life-styles in aquatic macrophytes

JPR Symposium Opening a New Era of ABA Research


Hydrophytes comprise aquatic macrophytes from various taxa that are able to sustain and to complete their lifecycle in a flooded environment. Their ancestors, however, underwent adaptive processes to withstand drought on land and became partially or completely independent of water for sexual reproduction. Interestingly, the step backwards into the high-density aquatic medium happened independently several times in numerous plant taxa. For flowering plants, this submersed life-style is especially difficult as they need to erect their floral organs above the water surface to be pollinated. Moreover, fresh-water plants evolved the adaptive mechanism of heterophylly, which enabled them to switch between a submersed and an emersed leaf morphology. The plant hormone abscisic acid (ABA) is a key factor of heterophylly induction in aquatic plants and is a major switch between a submersed and emersed life. The mechanisms of ABA signal perception and transduction appear to be conserved throughout the evolution of basal plants to angiosperms and from terrestrial to aquatic plants. This review summarizes the interplay of environmental factors that act through ABA to orchestrate adaptation of plants to their aquatic environment.


Aquatic macrophytes Hydrophytes Abscisic acid (ABA) Heterophylly Adaptation to a submersed life-style 


  1. Aarts MG, Keijzer CJ, Stiekema WJ, Pereira A (1995) Molecular characterization of the CER1 gene of Arabidopsis involved in epicuticular wax biosynthesis and pollen fertility. Plant Cell 7:2115–2127PubMedGoogle Scholar
  2. Albert VA, Jobson RW, Michael TP, Taylor DJ (2010) The carnivorous bladderwort (Utricularia, Lentibulariaceae): a system inflates. J Exp Bot 61:5–9PubMedGoogle Scholar
  3. Allsopp A (1951) Marsilea spp.: materials for the experimental study of morphogenesis. Nature 168:301–302PubMedGoogle Scholar
  4. Bailey-Serres J, Voesenek LA (2010) Life in the balance: a signaling network controlling survival of flooding. Curr Opin Plant Biol 13:489–494PubMedGoogle Scholar
  5. Bassaganya-Riera J, Skoneczka J, Kingston DG, Krishnan A, Misyak SA, Guri AJ, Pereira A, Carter AB, Minorsky P, Tumarkin R, Hontecillas R (2010) Mechanisms of action and medicinal applications of abscisic acid. Curr Med Chem 17:467–478PubMedGoogle Scholar
  6. Bruni NC, Young JP, Dengler NG (1996) Leaf developmental plasticity of Ranunculus flabellaris in response to terrestrial and submerged environments. Can J Bot 74:823–837Google Scholar
  7. Casati P, Lara MV, Andreo CS (2000) Induction of a C(4)-like mechanism of CO(2) fixation in Egeria densa, a submersed aquatic species. Plant Physiol 123:1611–1622PubMedGoogle Scholar
  8. Chen X, Pierik R, Peeters AJ, Poorter H, Visser EJ, Huber H, de Kroon H, Voesenek LA (2010) Endogenous abscisic acid as a key switch for natural variation in flooding-induced shoot elongation. Plant Physiol 154:969–977PubMedGoogle Scholar
  9. Cook CDK (1996) Aquatic plant book. SPB Academic Publishing, AmsterdamGoogle Scholar
  10. Corner EJH (1964) The life of plants. Weidenfield and Nicolson, LondonGoogle Scholar
  11. Cutler SR, Rodriguez PL, Finkelstein RR, Abrams SR (2010) Abscisic acid: emergence of a core signaling network. Annu Rev Plant Biol 61:651–679PubMedGoogle Scholar
  12. Davis GJ (1967) Proserpinaca: photoperiodic and chemical differentiation of leaf development and flowering. Plant Physiol 42:667–668PubMedGoogle Scholar
  13. Deschamp PA, Cooke TJ (1985) Leaf dimorphism in the aquatic angiosperm Callitriche heterophylla. Am J Bot 72:1377–1387Google Scholar
  14. Dorken ME, Barrett SCH (2004) Phenotypic plasticity of vegetative and reproductive traits in monoecious and dioecious populations of Sagittaria latifolia (Alismataceae): a clonal aquatic plant. J Ecol 92:32–44Google Scholar
  15. Elzenga JT, Prins HB (1989) Light-induced polar pH changes in leaves of Elodea canadensis: I. Effects of carbon concentration and light intensity. Plant Physiol 91:62–67PubMedGoogle Scholar
  16. Endress PK (2004) Structure and relationships of basal relictual angiosperms. Aust Syst Bot 17:343–366Google Scholar
  17. Endress PK (2010) The evolution of floral biology in basal angiosperms. Philos T R Soc B 365:411–421Google Scholar
  18. 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 94:43–57PubMedGoogle Scholar
  19. Fujita Y, Fujita M, Shinozaki K, Yamaguchi-Shinozaki K (2011) ABA-mediated transcriptional regulation in response to osmotic stress in plants. J Plant Res. doi: 10.1007/s10265-011-0412-3
  20. Gaudet JJ (1963) Marsilea vestita: conversion of the water form to the land form by darkness and by far-red light. Science 140:975–976PubMedGoogle Scholar
  21. Gee D, Anderson LWJ (1996) ABA induced differences during leaf development in the aquatic angiosperm, Potamogeton nodosus, are detected with differential display. Plant Physiol 111:446–446Google Scholar
  22. Gee D, Anderson LWJ (1998) Influence of leaf age on responsiveness of Potamogeton nodosus to ABA-induced heterophylly. Plant Growth Regul 24:119–125Google Scholar
  23. Gifford EM, Foster A (1988) Morphology and evolution of vascular plants. Freeman, New YorkGoogle Scholar
  24. Givnish TJ, Sytsma KJ, Smith JF, Hahn WJ (1994) Thorn-like prickles and heterophylly in Cyanea: adaptations to extinct avian browsers on Hawaii? Proc Natl Acad Sci USA 91:2810–2814PubMedGoogle Scholar
  25. Goda H, Sasaki E, Akiyama K, Maruyama-Nakashita A, Nakabayashi K, Li W, Ogawa M, Yamauchi Y, Preston J, Aoki K, Kiba T, Takatsuto S, Fujioka S, Asami T, Nakano T, Kato H, Mizuno T, Sakakibara H, Yamaguchi S, Nambara E, Kamiya Y, Takahashi H, Hirai MY, Sakurai T, Shinozaki K, Saito K, Yoshida S, Shimada Y (2008) The AtGenExpress hormone and chemical treatment data set: experimental design, data evaluation, model data analysis and data access. Plant J 55:526–542PubMedGoogle Scholar
  26. Goliber TE (1989) Endogenous abscisic-acid content correlates with photon fluence rate and induced leaf morphology in Hippuris vulgaris. Plant Physiol 89:732–734PubMedGoogle Scholar
  27. Goliber TE, Feldman LJ (1989) Osmotic stress, endogenous abscisic acid and the control of leaf morphology in Hippuris vulgaris L. Plant Cell Environ 12:163–171PubMedGoogle Scholar
  28. Goliber TE, Feldman LJ (1990) Developmental analysis of leaf plasticity in the heterophyllous aquatic plant Hippuris vulgaris. Am J Bot 77:399–412Google Scholar
  29. Grefen C, Stadele K, Ruzicka K, Obrdlik P, Harter K, Horak J (2008) Subcellular localization and in vivo interactions of the Arabidopsis thaliana ethylene receptor family members. Mol Plant 1:308–320PubMedGoogle Scholar
  30. Gunawardena AH, Greenwood JS, Dengler NG (2004) Programmed cell death remodels lace plant leaf shape during development. Plant Cell 16:60–73PubMedGoogle Scholar
  31. Horn CN (1988) Developmental heterophylly in the genus Heteranthera (Pontederiaceae). Aquat Bot 31:197–209Google Scholar
  32. Hotta CT, Gardner MJ, Hubbard KE, Baek SJ, Dalchau N, Suhita D, Dodd AN, Webb AA (2007) Modulation of environmental responses of plants by circadian clocks. Plant Cell Environ 30:333–349PubMedGoogle Scholar
  33. Hsu TC, Liu HC, Wang JS, Chen RW, Wang YC, Lin BL (2001) Early genes responsive to abscisic acid during heterophyllous induction in Marsilea quadrifolia. Plant Mol Biol 47:703–715PubMedGoogle Scholar
  34. Hubbard KE, Nishimura N, Hitomi K, Getzoff ED, Schroeder JI (2010) Early abscisic acid signal transduction mechanisms: newly discovered components and newly emerging questions. Genes Dev 24:1695–1708PubMedGoogle Scholar
  35. Hussner A (2009) Growth and photosynthesis of four invasive aquatic plant species in Europe. Weed Res 49:506–515Google Scholar
  36. Iwamoto A, Shimizu A, Ohba H (2003) Floral development and phyllotactic variation in Ceratophyllum demersum (Ceratophyllaceae). Am J Bot 90:1124–1130PubMedGoogle Scholar
  37. Jackson MB (2008) Ethylene-promoted elongation: an adaptation to submergence stress. Ann Bot 101:229–248PubMedGoogle Scholar
  38. Jackson MB, Ram PC (2003) Physiological and molecular basis of susceptibility and tolerance of rice plants to complete submergence. Ann Bot Lond 91:227–241Google Scholar
  39. Jakoby M, Weisshaar B, Droge-Laser W, Vicente-Carbajosa J, Tiedemann J, Kroj T, Parcy F (2002) bZIP transcription factors in Arabidopsis. Trends Plant Sci 7:106–111PubMedGoogle Scholar
  40. Jo IS, Han DU, Cho YJ, Lee EJ (2010) Effects of light, temperature, and water depth on growth of a rare aquatic plant, Ranunculus kadzusensis. J Plant Biol 53:88–93Google Scholar
  41. Kane ME, Albert LS (1985) Hormonal basis for control of leaf morphology and venation in Hippuris vulgaris L. Am J Bot 72:819–819Google Scholar
  42. Kane ME, Albert LS (1987a) Abscisic-acid induces aerial leaf morphology and vasculature in submerged Hippuris vulgaris L. Aquat Bot 28:81–88Google Scholar
  43. Kane ME, Albert LS (1987b) Integrative regulation of leaf morphogenesis by gibberellic and abscisic acids in the aquatic angiosperm Proserpinaca palustris L. Aquat Bot 28:89–96Google Scholar
  44. Kane ME, Albert LS (1989) Abscisic-acid induction of aerial leaf development in Myriophyllum and Proserpinaca species cultured invitro. J Aquat Plant Manage 27:102–111Google Scholar
  45. Kao WY, Lin BL (2010) Phototropic leaf movements and photosynthetic performance in an amphibious fern, Marsilea quadrifolia. J Plant Res 123:645–653PubMedGoogle Scholar
  46. Kato Y, Aioi K, Omori Y, Takahata N, Satta Y (2003) Phylogenetic analyses of Zostera species based on rbcL and matK nucleotide sequences: implications for the origin and diversification of seagrasses in Japanese waters. Genes Genet Syst 78:329–342PubMedGoogle Scholar
  47. Keeley JE (1998) CAM photosynthesis in submerged aquatic plants. Bot Rev 64:121–175Google Scholar
  48. Kende H (1987) Studies on internodal growth using deep-water rice. In: Cosgrove DJ, Knievel DP (eds) Physiology of cell expansion during growth. American Society of Plant Physiologists, Rockville, pp 227–238Google Scholar
  49. Kilian J, Whitehead D, Horak J, Wanke D, Weinl S, Batistic O, D’Angelo C, Bornberg-Bauer E, Kudla J, Harter K (2007) The AtGenExpress global stress expression data set: protocols, evaluation and model data analysis of UV-B light, drought and cold stress responses. Plant J 50:347–363PubMedGoogle Scholar
  50. Klavsen SK, Maberly SC (2009) Crassulacean acid metabolism contributes significantly to the in situ carbon budget in a population of the invasive aquatic macrophyte Crassula helmsii. Freshw Biol 54:105–118Google Scholar
  51. Klavsen SK, Maberly SC (2010) Effect of light and CO2 on inorganic carbon uptake in the invasive aquatic CAM-plant Crassula helmsii. Funct Plant Biol 37:737–747Google Scholar
  52. Kobayashi Y, Weigel D (2007) Move on up, it’s time for change—mobile signals controlling photoperiod-dependent flowering. Genes Dev 21:2371–2384PubMedGoogle Scholar
  53. Kreps JA, Kay SA (1997) Coordination of plant metabolism and development by the circadian clock. Plant Cell 9:1235–1244PubMedGoogle Scholar
  54. Kuwabara A, Nagata T (2006) Cellular basis of developmental plasticity observed in heterophyllous leaf formation of Ludwigia arcuata (Onagraceae). Planta 224:761–770PubMedGoogle Scholar
  55. Kuwabara A, Tsukaya H, Nagata T (2001) Identification of factors that cause heterophylly in Ludwigia arcuata Walt. (Onagraceae). Plant Biol 3:98–105Google Scholar
  56. Kuwabara A, Ikegami K, Koshiba T, Nagata T (2003) Effects of ethylene and abscisic acid upon heterophylly in Ludwigia arcuata (Onagraceae). Planta 217:880–887PubMedGoogle Scholar
  57. Lai C, Kunst L, Jetter R (2007) Composition of alkyl esters in the cuticular wax on inflorescence stems of Arabidopsis thaliana cer mutants. Plant J 50:189–196PubMedGoogle Scholar
  58. Legnaioli T, Cuevas J, Mas P (2009) TOC1 functions as a molecular switch connecting the circadian clock with plant responses to drought. EMBO J 28:3745–3757PubMedGoogle Scholar
  59. Leigh A, Zwieniecki MA, Rockwell FE, Boyce CK, Nicotra AB, Holbrook NM (2011) Structural and hydraulic correlates of heterophylly in Ginkgo biloba. New Phytol 189:459–470PubMedGoogle Scholar
  60. Les DH, Garvin DK, Wimpee CF (1993) Phylogenetic studies in the monocot subclass Alismatidae: evidence for a reappraisal of the aquatic order Najadales. Mol Phylogenet Evol 2:304–314PubMedGoogle Scholar
  61. Les DH, Landolt E, Crawford DJ (1997) Systematics of the Lemnaceae (duckweeds): inferences from micromolecular and morphological data. Plant Syst Evol 204:161–177Google Scholar
  62. Lin B-L (2002) Heterophylly in aquatic plants. In: Taiz LaZ, E (ed) Plant Physiology, vol. Essay 23.1. Sinauer, SunderlandGoogle Scholar
  63. Lin BL, Yang WJ (1999) Blue light and abscisic acid independently induce heterophyllous switch in Marsilea quadrifolia. Plant Physiol 119:429–434PubMedGoogle Scholar
  64. Lin BL, Wang HJ, Wang JS, Zaharia LI, Abrams SR (2005) Abscisic acid regulation of heterophylly in Marsilea quadrifolia L.: effects of R-(−) and S-(+) isomers. J Exp Bot 56:2935–2948PubMedGoogle Scholar
  65. Lord CE, Gunawardena AH (2011) Environmentally induced programmed cell death in leaf protoplasts of Aponogeton madagascariensis. Planta 233:407–421PubMedGoogle Scholar
  66. Madsen TV (1987) Interaction between internal and external CO2 pools in the photosynthesis of the aquatic CAM plants Littorella uniflora (L.) and Isoetes lacustris (L.). New Phytol 106:35–50Google Scholar
  67. Madsen TV, Sandjensen K (1994) The interactive effects of light and inorganic carbon on aquatic plant-growth. Plant Cell Environ 17:955–962Google Scholar
  68. Meller B, van Bergen PF (2003) The problematic systematic position of Ceratostratiotes Gregor (Hydrocharitaceae?)—morphological, anatomical and biochemical comparison with Stratiotes L. Plant Syst Evol 236:125–150Google Scholar
  69. Minorsky PV (2003) The hot and the classic. Plant Physiol 132:25–26PubMedGoogle Scholar
  70. Mizuno T, Yamashino T (2008) Comparative transcriptome of diurnally oscillating genes and hormone-responsive genes in Arabidopsis thaliana: insight into circadian clock-controlled daily responses to common ambient stresses in plants. Plant Cell Physiol 49:481–487PubMedGoogle Scholar
  71. Mommer L, Visser EJ (2005) Underwater photosynthesis in flooded terrestrial plants: a matter of leaf plasticity. Ann Bot 96:581–589PubMedGoogle Scholar
  72. Mommer L, Wolters-Arts M, Andersen C, Visser EJ, Pedersen O (2007) Submergence-induced leaf acclimation in terrestrial species varying in flooding tolerance. New Phytol 176:337–345PubMedGoogle Scholar
  73. Mulkey SS, Smith AP, Wright SJ, Machado JL, Dudley R (1992) Contrasting leaf phenotypes control seasonal variation in water loss in a tropical forest shrub. Proc Natl Acad Sci USA 89:9084–9088PubMedGoogle Scholar
  74. Nemhauser JL, Hong F, Chory J (2006) Different plant hormones regulate similar processes through largely nonoverlapping transcriptional responses. Cell 126:467–475PubMedGoogle Scholar
  75. Orgaard M, Van Bruggen HWE, Van Der Vlugt PJ (1992) Die Familie Cabombaceae (Cabomba und Brasenia). VDA-Arbeitskreis Wasserpflanzen, BerlinGoogle Scholar
  76. Peschke F, Kretsch T (2011) Genome-wide analysis of light-dependent transcript accumulation patterns during early stages of Arabidopsis seedling deetiolation. Plant Physiol 155:1353–1366PubMedGoogle Scholar
  77. Prance GTP (1985) Leaves: the formation, characteristics and uses of hundreds of leaves found in all parts of the world. Crown, New YorkGoogle Scholar
  78. Puijalon S, Bornette G (2006) Phenotypic plasticity and mechanical stress: biomass partitioning and clonal growth of an aquatic plant species. Am J Bot 93:1090–1099PubMedGoogle Scholar
  79. Puijalon S, Bornette G, Sagnes P (2005) Adaptations to increasing hydraulic stress: morphology, hydrodynamics and fitness of two higher aquatic plant species. J Exp Bot 56:777–786PubMedGoogle Scholar
  80. Puijalon S, Lena JP, Riviere N, Champagne JY, Rostan JC, Bornette G (2008) Phenotypic plasticity in response to mechanical stress: hydrodynamic performance and fitness of four aquatic plant species. New Phytol 177:907–917PubMedGoogle Scholar
  81. Rao S, Reiskind J, Bowes G (2006) Light regulation of the photosynthetic phosphoenolpyruvate carboxylase (PEPC) in Hydrilla verticillata. Plant Cell Physiol 47:1206–1216PubMedGoogle Scholar
  82. Rascio N, Cuccato F, Dalla Vecchia F, La Rocca N, Larcher W (1999) Structural and functional features of leaves of Ranunculus trichophyllus Chaix., a freshwater submerged macrophyte. Plant Cell Environ 22:205–212Google Scholar
  83. Rattray MR, Webb DR, Brown JMA (1992) Light effects on Crassulacean acid metabolism in the submerged aquatic plant Isoetes kirkii Braun A. A New Zeal J Mar Fresh 26:465–470Google Scholar
  84. Robe WE, Griffiths H (1990) Photosynthesis of Littorella uniflora grown under two PAR regimes: C3 and CAM gas exchange and he regulation of internal CO2 and O2 concentrations. Oecologia 85:128–136Google Scholar
  85. Santamaria L, Figuerola J, Pilon JJ, Mjelde M, Green AJ, De Boer T, King RA, Gornall RJ (2003) Plant performance across latitude: the role of plasticity and local adaptation in an aquatic plant. Ecology 84:2454–2461Google Scholar
  86. Santos MJ, Anderson LW, Ustin SL (2011) Effects of invasive species on plant communities: an example using submersed aquatic plants at the regional scale. Biol Invasions 13:443–457Google Scholar
  87. Sato M, Tsutsumi M, Ohtsubo A, Nishii K, Kuwabara A, Nagata T (2008) Temperature-dependent changes of cell shape during heterophyllous leaf formation in Ludwigia arcuata (Onagraceae). Planta 228:27–36PubMedGoogle Scholar
  88. Schiller P, Heilmeier H, Hartung W (1997) Abscisic acid (ABA) relations in the aquatic resurrection plant Chamaegigas intrepidus under naturally fluctuating environmental conditions. New Phytol 136:603–611Google Scholar
  89. Sculthorpe CD (1967) The biology of vascular plants. Palgrave Macmillan, New YorkGoogle Scholar
  90. Shan H, Zahn L, Guindon S, Wall PK, Kong H, Ma H, DePamphilis CW, Leebens-Mack J (2009) Evolution of plant MADS box transcription factors: evidence for shifts in selection associated with early angiosperm diversification and concerted gene duplications. Mol Biol Evol 26:2229–2244PubMedGoogle Scholar
  91. Sharma BD, Harsh R (1995) Diurnal acid metabolism in the submerged aquatic plant, Isoetes tuberculata. Am Fern J 85:58–60Google Scholar
  92. Sifton HB (1945) Air-space tissue in plants. Bot Rev 11:108–143Google Scholar
  93. Smykowski A, Zimmermann P, Zentgraf U (2010) G-Box binding factor1 reduces CATALASE2 expression and regulates the onset of leaf senescence in Arabidopsis. Plant Physiol 153:1321–1331PubMedGoogle Scholar
  94. Soltis PS, Brockington SF, Yoo MJ, Piedrahita A, Latvis M, Moore MJ, Chanderbali AS, Soltis DE (2009) Floral variation and floral genetics in basal angiosperms. Am J Bot 96:110–128PubMedGoogle Scholar
  95. Spencer DF, Anderson LWJ (1987) Influence of photoperiod on growth, pigment composition and vegetative propagule formation for Potamogeton nodosus Poir and Potamogeton pectinatus L. Aquat Bot 28:103–112Google Scholar
  96. Strand JA, Weisner SEB (2001) Morphological plastic responses to water depth and wave exposure in an aquatic plant (Myriophyllum spicatum). J Ecol 89:166–175Google Scholar
  97. Takezawa D, Komatsu K, Sakata Y (2011) ABA in bryophytes: how a universal growth regulator in life became a plant hormone? J Plant Res. doi: 10.1007/s10265-011-0410-5
  98. Tzeng TY, Chen HY, Yang CH (2002) Ectopic expression of carpel-specific MADS box genes from lily and lisianthus causes similar homeotic conversion of sepal and petal in Arabidopsis. Plant Physiol 130:1827–1836PubMedGoogle Scholar
  99. Villani PJ, Etnier SA (2008) Natural history of heterophylly in Nymphaea odorata ssp. tuberosa (Nymphaeaceae). Northeast Nat 15:177–188Google Scholar
  100. Visser EJW, Nabben RHM, Blom CWPM, Voesnek LA (1997) Elongation by primary lateral roots and adventitious roots during conditions of hypoxia and high ethylene concentration. Plant Cell Environ 20:647–653Google Scholar
  101. Voesnek LA, Benschop JJ, Bou J, Cox MC, Groeneveld HW, Milennaar FF, Vreeburg RA, Peeters AJ (2003) Interactions between plant hormones regulate submergence-induced shoot elongation in the flooding-tolerant dicot Rumex palustris. Ann Bot Lond 91:205–2011Google Scholar
  102. Wanke D, Berendzen KW, Kilian J, Harter K (2009) Insights into Arabidopsis abiotic stress response from the AtGenExpress expression profile dataset. In: Hirt H (ed) Plant stress biology. Wiley, Weinheim, pp 199–225Google Scholar
  103. Winn AA (1999) The functional significance and fitness consequences of heterophylly. Int J Plant Sci 160:S113–S121PubMedGoogle Scholar
  104. Wissler L, Codoner FM, Gu J, Reusch TB, Olsen JL, Procaccini G, Bornberg-Bauer E (2011) Back to the sea twice: identifying candidate plant genes for molecular evolution to marine life. BMC Evol Biol 11:8PubMedGoogle Scholar
  105. Zahn LM, Leebens-Mack JH, Arrington JM, Hu Y, Landherr LL, dePamphilis CW, Becker A, Theissen G, Ma H (2006) Conservation and divergence in the AGAMOUS subfamily of MADS-box genes: evidence of independent sub- and neofunctionalization events. Evol Dev 8:30–45PubMedGoogle Scholar
  106. Zanewich KP, Rood SB, Williams PH (1990) Growth and development of Brassica genotypes differing in endogenous gibberellin content. I. Leaf and reproductive development. Physiol Plant 79:673–678PubMedGoogle Scholar

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© The Botanical Society of Japan and Springer 2011

Authors and Affiliations

  1. 1.ZMBP-Plant PhysiologyTübingen UniversityTübingenGermany

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