Abstract
Light is both a source of energy and a developmental signal, and therefore has a major impact upon initial seedling growth. This is particularly the case for species where photosynthesis in the cotyledons makes a significant contribution to carbon balance. In addition to containing reserves of proteins, lipids and carbohydrates the cotyledons of soybean (Glycine max (L.) Merrill) maintain sufficient photosynthetic activity to counterbalance respiratory carbon loss. Based on the hypothesis that altered light regime would affect seedling photosynthesis and development, we investigated the impact of shading and darkness on the reserves present in different soybean seedling organs. Plants were grown until the VC/V1 stage under normal light conditions (500 µmol m−2 s−1, 12/12 h) before being divided into three groups; normal light, low light (50 µmol m−2 s−1, 12/12 h) and darkness. After 3 days plants were harvested at three time points over the course of a day/night cycle and seedling organs analysed separately. Low light and darkness led to partial etiolation and the consumption of carbohydrates and fatty acids in several organs. Effects on cotyledon reserve mobilisation were modest, as darkness and low light did not lead to decreased cotyledon mass. However, metabolism in the epicotyl was more strongly perturbed, with the accumulation of branched chain and aromatic amino acids together with sugars that may be required to drive organ elongation. Darkness also served to abolish diurnal alterations in starch and asparagine concentrations detected in control plants. Overall, the data reinforce the flexibility of seedling metabolism, revealing similarities to the responses of adult plants to carbon starvation .
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References
Abrahamsen M, Sudia TW (1966) Studies on the soluble carbohydrates and carbohydrate precursors in germinating soybean seed. Am J Bot 53(2):108–114
Agrawal GK, Hajduc M, Graham K, Thelen JJ (2008) In-depth investigation of the soybean seed-filling proteome and comparison with a parallel study of rapeseed. Plant Physiol 148:504–518
Albrecht V, Ingenfeld A, Apel K (2008) Snowy cotyledon 2: the identification of a zinc finger domain protein essential for chloroplast development in cotyledons but not in true leaves. Plant Mol Biol 66:599–608
Amaral LIV, Gaspar M, Costa PMF, Aidar MPM, Buckeridge MS (2007) Novo método enzimático rápido e sensível de extração e dosagem de amido em materiais vegetais. Hoehnea 34(4):425–431
Araújo WL et al (2011) Protein degradation—an alternative respiratory substrate for stressed plants. Trends Plant Sci 16(9):489–498
Araújo WL et al (2012) Metabolic control and regulation of the tricarboxylic acid cycle in photosynthetic and heterotrophic plant tissues. Plant Cell Environ 35:1–21
Armarego-Marriott T, Sandoval-Ibanes O, Kowalewska L (2020) Beyond the darkness: recent lessons from etiolation and de-etiolation studies. J Exp Bot 71:1215–1225
Artuzo FD et al (2018) Gestão de custos na produção de milho e soja. Rev Bras Gest Neg São Paulo 20:273–294
Avin-Wittenberg T et al (2015) Global analysis of the role of autophagy in cellular metabolism and energy homeostasis in Arabidopsis seedlings under carbon starvation. Plant Cell 27:306–322
Barros JAS et al (2017) Autophagy deficiency compromises alternative pathways of respiration following energy deprivation in Arabidopsis thaliana. Plant Physiol 175:62–76
Brouquisse R, Gaudillére JP, Raymond P (1998) Induction of a carbon-starvation-related proteolysis in whole maize plants submitted to light/dark cycles and to extended darkness. Plant Physiol 117:1281–1291
Brown CS, Huber SC (1987) Photosynthesis, reserve mobilization and enzymes of sucrose metabolism in soybean (Glycine max) cotyledons. Physiol Plant 70:537–543
Brown CS, Huber SC (1988) Reserve mobilization and starch formation in soybean (Glycine max) cotyledons in relation to seedling growth. Physiol Plant 72:518–524
Buchanan-Wollaston V, Page T, Harrison E, Breeze E, Lim PO, Nam HG, Lin J-F, Wu S-H, Swidzinski J, Ishizaki K, Leaver CJ (2005) Comparative transcriptome analysis reveals significant differences in gene expression and signalling pathways between developmental and dark/starvation-induced senescence in Arabidopsis. Plant J 42:567–585
Buckeridge MS, Aidar MP, Santos HP, Tiné MA (2004) Acúmulo de reservas. In: Ferreira AG, Borghetti F (eds) Germinação do básico ao aplicado. Artmed, Porto Alegre, pp 31–50
Chatterton HJ, Silvius JE (1979) Photosynthate partitioning into starch in soybean leaves. Plant Physiol 64:749–753
Chen Y, Zhou B, Li J, Tang H, Tang J, Yang Z (2018) Formation and change of chloroplast-located plant metabolites in response to light conditions. Int J Mol Sci 19(654):2018
Clemente TE, Cahoon EB (2009) Soybean oil: genetic approaches for modification of functionality and total content. Plant Physiol 151:1030–1040
Dalchau N, Baek SJ, Briggs HM, Robertson FC, Dodd AN, Gardner MJ, Stancombe MA, Haydon MJ, Stan G, Gonçalves JM, Webb AAR (2011) The circadian oscillator gene GIGANTEA mediates a long-term response of the Arabidopsis thaliana circadian clock to sucrose. PNAS 108:5104–5109. https://doi.org/10.1073/pnas.1015452108
Dodd AN, Salathia N, Hall A, Kévei E, Tóth R, Nagy F, Hibberd JM, Millar AJ, Webb AA (2005) Plant circadian clocks increase photosynthesis, growth, survival, and competitive advantage. Science 309:630–633
Fan J, Yan C, Roston R, Shanklin J, Xu C (2014) Arabidopsis lipins, PDAT1 acyltransferase, and SDP1 triacylglycerol lipase synergistically direct fatty acids toward β-oxidation, thereby maintaining membrane lipid homeostasis. Plant Cell 26(10):4119–4134. https://doi.org/10.1105/tpc.114.130377
Farré EM, Weise S (2012) The interactions between the circadian clock and primary metabolism. Curr Opin Plant Biol 15:293–300
Fehr WR, Caviness CE (1977) Stages of soybean development. Spec Rep 87:12
Galili G, Amir R, Fernie R (2016) The regulation of essential amino acid synthesis and accumulation in plants. Annu Rev Plant Biol. https://doi.org/10.1146/annurev-arplant-043015-112213
Gommers CMM, Monte E (2018) Seedling establishment: a dimmer switch-regulated process between dark and light signaling. Plant Physiol 176:1061–1074
Hanley ME, Fegan EL (2007) Timing of cotyledon damage affects growth and flowering in mature plants. Plant Cell Environ 30:812–819
Harris M, Mackender RO, Smith D (1986) Photosynthesis of cotyledons of soybean seedlings. New Phytol 104:319–329
He C, Wang W, Dongfang Y, Zhang J, Gai J, Chen S (2002) Transcription regulation of soybean ribulose-1,5-bisphosphate carboxylase small subunit gene by external factors. Chin Sci Bull 47:38–43
Hildebrant TM, Nesi AN, Araújo WL, Braun H-P (2015) Amino acid catabolism in plants. Mol Plant. https://doi.org/10.1016/j.molp.2015.09.005
Housley TL, Schrader LE, Miller M, Setter TL (1979) Partitioning of 14C-Photosynthate, and long distance translocation of amino acids in preflowering and flowering, nodulated and nonnodulated soybeans. Plant Physiol 64:94–98
Hust CJ, Sudia TW (1973) The effect of light on the use of the nitrogen reserves of germinating soybean seeds. Am J Bot 60:1034–1040
Hymowitz T (1970) On the domestication of the soybean. Econ Bot 23:408–421
Ishizaki K, Larson TR, Schauer N, Fernie AR, Graham IA, Leaver CJ (2005) The critical role of Arabidopsis electron-transfer flavoprotein: ubiquinone oxidoreductase during dark-induced starvation. Plant Cell 17:2587–2600
Josse EM, Halliday K (2008) Skotomorphogenesis: the dark side of light signalling. Curr Biol 18:1144–1146
Joshi V, Joung JG, Fei ZJ, Jander G (2010) Interdependence of threonine, methionine and isoleucine metabolism in plants: accumulation and transcriptional regulation under abiotic stress. Amino Acids 39:933–947
Junknischke A, Kutschera U (1998) The role of the cotyledons and primary leaves during seedling establishment in sunflower. J Plant Physiol 153:700–705
Kamranfar I, Xue GP, Tohge T, Sedaghatmehr M, Fernie AR, Balazadeh S, Mueller-Roeber B (2018) Transcription factor RD26 is a key regulator of metabolic reprogramming during dark-induced senescence. New Phytol 218:1543–1557
Kerr PS, Rufty TW, Huber SC (1985) Changes in nonstructural carbohydrates in different parts of soybean (Glycine max [L.J Merr.) plants during a light/dark cycle and in extended darkness. Plant Physiol 78:576–581
Kim J, Park SJ, Lee IH, Chu H, Penfold CA, Kim JH, Buchanan-Wollaston V, Nam HG, Woo HR, Lim PO (2018) Comparative transcriptome analysis in Arabidopsis ein2/ore3 and ahk3/ore12 mutants during dark-induced leaf senescence. J Exp Bot 69:3023–3036
Kunz HH, Scharnewski M, Feussner K, Feussner I, Flügge UI, Fulda M, Gierth M (2009) The ABC transporter PXA1 and peroxisomal beta-oxidation are vital for metabolism in mature leaves of Arabidopsis during extended darkness. Plant cell 21:2733–2749
Laurens LML, Quinn M, van Wychen S, Templenton DW, Wolfrum EJ (2012) Accurate and reliable quantification of total microalgal fuel potential as fatty acid methyl esters by in situ transesterification. Anal Bioanal Chem 403(1):167–178
Law SR, Chrobok D, Juvany M, Delhomme N, Linén P, Brouwer B, Ahad A, Moritz T, Jansson S, Gardestrom P, Keech O (2018) Darkened leaves use different metabolic strategies for senescence and survival. Plant Physiol. https://doi.org/10.1104/pp.18.00062
Lea PJ, Sodek L, Parry MAJ, Shewry PR, Halford NG (2006) Asparagine in plants. Ann Appl Biol 150:1–26
Legris M, Inca YC, Fankhauser C (2019) Molecular mechanisms underlying phytochrome-controlled morphogenesis in plants. Nat Commun 10:5219
Levan NA, Goggi AS, Mullen R (2008) Improving the reproducibility of soybean standard germination test. Crop Sci 48:1933–1940
Lima JD, Sodek L (2003) N-stress alters aspartate and asparagine levels of xylem sap in soybean. Plant Sci 165:649–656
Marek LF, Stewart CR (1992) Photosynthesis and photorespiration in presenescent, senescent, and rejuvenated soybean cotyledons. Plant Physiol 98:694–699
Masuda T, Goldsmith PD (2009) World soybean production: area harvested, yield, and long-term projections. Int Food Agribus Manage Rev 12:1–20
Melo FPL, Neto AVA, Simaburkuro EA, Tabarelli M (2004) Recrutamento e estabelecimento de plântulas. In: Ferreira AG, Borghetti F (eds) Germinação do básico ao aplicado. Porto Alegre, Artmed, pp 149–162
Moore S, Stein WH (1954) A modified ninhydrin reagent for the photometric determination of amino acids and related compounds. J Biol Chem 211:907–913
Morais ÁA, Silva AL (1996). In: Morais AA, Silva AL (eds) Soja: suas aplicações. MDSI Editora Médica e Científica Ltda, Rio de Janeiro, p 259
Moreira TB, Shaw R, Luo X, Ganguly O, Kim HS, Coelho LGF, Cheung CYM, Williams TCR (2019) A genome-scale metabolic model of soybean (Glycine max) highlights metabolic fluxes in seedlings. Plant Physiol 180:1912–1929
Muntz K, Belozersky MA, Dunaevsky YE, Schlereth A, Tiedemann J (2001) Stored proteinases and the initiation of storage protein mobilization in seeds during germination and seedling growth. J Exp Bot 52:1741–1752
Nielsen N (1996) Soybean seed composition. In: Verma D, Shoemaker R (eds) Soybean: genetics, molecular biology and biotechnology. CAB International, Willingford, p 270
Obata T, Fernie AR (2012) The use of metabolomics to dissect plant responses to abiotic stresses. Cell Mol Life Sci 69:3225–3243
Penny MG, Moore KG, Lovell PH (1976) The effects of inhibition of cotyledon photosynthesis on seedling development in Cucumis sativus L.. Ann Bot 40:815–824
Pires MV et al (2016) The influence of alternative pathways of respiration that utilize branched-chain amino acids following water shortage in Arabidopsis. Plant Cell Environ 39:1304–1319
Praxedes SC et al (2006) Effects of long-term soil drought on photosynthesis and carbohydrate metabolism in mature robusta coffee (Coffea canephora Pierre var. kouillou) leaves. Environ Exp Bot 56(3):263–273
R Development Core Team (2008) R: a language and environment for statistical computing. R Foundation for Statistical Computing, Vienna. http://www.R-project.org. Accessed 20 Sept 2018
Rikin A, Dillwith JW, Bergman DK (1993) Correlation between the circadian rhythm of resistance to extreme temperatures and changes in fatty acid composition in cotton seedlings. Plant Physiol 101:31–36
Schippers JHM, Schmidt R, Wagstaff C, Jing H (2015) Living to die and dying to live: the survival strategy behind leaf senescence. Plant Physiol 169:914–930
Slot M, Kitajima K (2015) Whole-plant respiration and its temperature sensitivity during progressive carbon starvation. Funct Plant Biol 42:579–588
Srivastava D, Shamim M, Kumar M, Mishra A, Maurya R, Sharma D, Pandey P, Singh KN (2019) Role of circadian rhythm in plant system: an update from development to stress response. Environ Exp Bot 162:256–271
Stitt M, Zeeman SC (2012) Starch turnover: pathways, regulation and role in growth. Plant Biol 15:282–292
Sweetlove LJ et al (2010) Not just a circle: flux modes in the plant TCA cycle. Trends Plant Sci 15:462–470
Tcherkez G, Boex-Fontvieille E, Mahé A, Hodges M (2012) Respiratory carbon fluxes in leaves. Curr Opin Plant Biol 15(3):308–314
Thomas AL, Costa JA (1993) Crescimento de plântulas de soja afetado pelo sombreamento dos cotilédones e suas reservas. Pesq Agropec bras 28(8):925–929
Wang L, Liu P, Wu LM, Tan J, Peacock WJ, Dennis ES (2019) Cotyledons contribute to plant growth and hybrid vigor in Arabidopsis. Planta 249:1107–1118
Willms JR, Salon C, Layzell DB (1999) Evidence for light-stimulated fatty acid synthesis in soybean fruit. Plant Physiol 120:1117–1128
Yang Z, Ohlrogge JB (2009) Turnover of fatty acids during natural senescence of arabidopsis, brachypodium, and switchgrass and in Arabidopsis β-oxidation mutants. Plant Physiol 150:1981–1989
Yanovsky MJ (2001) Signaling networks in the plant circadian system. Plant Biol 4:429
Yemm EW, Cocking EC (1955) The determination of amino acids with ninhydrin. Analyst 80:209–213
Yin Y, Yang R, Han Y, Gu Z (2014) Comparative proteomic and physiological analyses reveal the protective effect of exogenous calcium on the germinating soybean response to salt stress. J Proteom 113:110–126
Zheng W, Wang P, Zhang H, Zhou D (2011) Photosynthetic characteristics of the cotyledon and first true leaf of castor (Ricinus communis L.). Aust J Crop Sci 5:702–708
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Funding was provided by Fundação de Apoio à Pesquisa do Distrito Federal (FAPDF, Processo 193.000.193/2014) and Coordenação de Aperfeiçoamento de Pessoal de Nível Superior—Brasil (CAPES)—Finance Code 001.
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Silva, K.F.O.e., Melo, B.C.V., Moreira, T.B. et al. Darkness and low-light alter reserve mobilization during the initial growth of soybean (Glycine max (L.) Merrill). Theor. Exp. Plant Physiol. 33, 55–68 (2021). https://doi.org/10.1007/s40626-020-00194-7
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DOI: https://doi.org/10.1007/s40626-020-00194-7