Abstract
Aims
Citrate secretion is a kind of typical strategy for plant against aluminum (Al) toxicity. However, the signaling process in Al-activated citrate secretion needs to be clarified.
Methods
Physiological and biochemical methods as well as gene expression analysis were employed to examine the regulatory roles of nitric oxide (NO) in Al-activated citrate secretion in soybean roots.
Results
Application of NO donor alleviated root growth inhibition and decreased Al content in Al-treated root apices. Al-induced NO production and citrate secretion were further elevated by NO donor, but inhibited by NO scavenger. Inhibition of citrate synthase (CS) or plasma membrane (PM) H+-ATPase activity significantly decreased Al-induced secretion of citrate, but inhibition of aconitase (ACO) activity enhanced citrate secretion under Al stress. Furthermore, NO mediated Al-stimulated CS and PM H+-ATPase activities, but decreased ACO activity under Al stress. Further investigation showed that NO modulated Al-activated transcriptional expression of CS and PM H+-ATPase as well as GmMATE. Overexpression of GmMATE in soybean hairy roots caused an enhanced Al-induced citrate efflux and Al resistance.
Conclusions
Our findings suggest that NO-dependent up-regulation of citrate synthesis and activation of PM H+-ATPase-coupled MATE transporter co-transport system participates in Al-activated citrate exudation, thus conferring plant resistance to Al toxicity.
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Abbreviations
- ACO:
-
Aconitase
- CS:
-
Citrate synthase
- FC:
-
Fusicoccin
- FCA:
-
Fluorocitric acid
- HPLC:
-
High-performance liquid chromatography
- PM:
-
Plasma membrane
- MATE:
-
Multidrug and toxic compound extrusion
- NO:
-
Nitric oxide
- NOS:
-
Nitric oxide synthase
- NR:
-
Nitrate reductase;
- PTIO:
-
2-phenyl-4,4,5,5-tetramethyl-imidazoline-1-oxyl-3-oxide
- SNP:
-
Sodium nitroprusside
- Sur:
-
Suramin
- VA:
-
Vanadate
References
Ahn SJ, Sivaguru M, Osawa H, Chung GC, Matsumoto H (2001) Aluminum inhibits the H+-ATPase activity by permanently altering the plasma membrane surface potentials in squash roots. Plant Physiol 126:1381–1390
Anoop VM, Basu U, McCammon MT, McAlister-Henn L, Taylor GJ (2003) Modulation of citrate metabolism alters aluminum tolerance in yeast and transgenic canola over-expressing a mitochondrial citrate synthase. Plant Physiol 132:2205–2217
Daspute AA, Kobayashi Y, Panda SK, Fakrudin B, Kobayashi Y, Tokizawa M, Iuchi S, Choudhary AK, Yamamoto YY, Koyama H (2018) Characterization of CcSTOP1; a C2H2-type transcription factor regulates Al tolerance gene in pigeonpea. Planta 247:201–214
de la Fuente JM, Ramírez-Rodríguez V, Cabrera-Ponce JL, Herrera-Estrella L (1997) Aluminum tolerance in transgenic plants by alteration of citrate synthesis. Science 276:1566–1568
Delhaize E, Hebb DM, Ryan PR (2001) Expression of a Pseudomonas aeruginosa citrate synthase gene in tobacco is not associated with either enhanced citrate accumulation or efflux. Plant Physiol 125:2059–2067
Deng W, Luo KM, Li ZG, Yang YW, Hu N, Wu Y (2009) Overexpression of Citrus junos mitochondrial citrate synthase gene in Nicotiana benthamiana confers aluminium tolerance. Planta 230:355–365
Guo C, Chen Q, Zhao X, Chen X, Zhao Y, Wang L, Li K, Yu Y, Chen L (2013) Al-enhanced expression and interaction of 14-3-3 protein and plasma membrane H+-ATPase is related to Al-induced citrate secretion in an Al-resistant black soybean. Plant Mol Biol Report 31:1012–1024
Hayes JE, Ma JF (2003) Al-induced efflux of organic acid anions is poorly associated with internal organic acid metabolism in triticale roots. J Exp Bot 54:1753–1759
He H, Zhan J, He L, Gu M (2012) Nitric oxide signaling in aluminum stress in plants. Protoplasma 249:483–492
He H, Huang W, Oo TL, Gu M, Zhan J, Wang A, He LF (2018) Nitric oxide suppresses aluminum-induced programmed cell death in peanut (Arachis hypoganea L.) root tips by improving mitochondrial physiological properties. Nitric Oxide 74:47–55. https://doi.org/10.1016/j.niox.2018.01.003
Huang S, Gao J, You J, Liang Y, Guan K, Yan S, Zhan M, Yang Z (2018) Identification of STOP1-like proteins associated with aluminum tolerance in sweet sorghum (Sorghum bicolor L.). Front Plant Sci 9:258
Kereszt A, Li D, Indrasumunar A, Nguyen CD, Nontachaiyapoom S, Kinkema M, Gresshoff PM (2007) Agrobacterium rhizogenes-mediated transformation of soybean to study root biology. Nat Protoc 2:948–952
Klessig DF, Durner J, Noad R, Navarre DA, Wendehenne D, Kumar D, Zhou JM, Shah J, Zhang SQ, Kachroo P, Trifa Y, Pontier D, Lam E, Silva H (2000) Nitric oxide and salicylic acid signaling in plant defense. Proc Natl Acad Sci U S A 97:8849–8855
Kochian LV (1995) Cellular mechanisms of aluminum toxicity and resistance in plants. Annu Rev Plant Physiol Plant Mol Biol 46:237–260
Liu JP, Magalhaes JV, Shaff J, Kochian LV (2009) Aluminum activated citrate and malate transporters from the MATE and ALMT families function independently to confer Arabidopsis aluminum tolerance. Plant J 57:389–399
Liu N, You J, Shi W, Liu W, Yang Z (2012) Salicylic acid involved in the process of aluminum induced citrate exudation in Glycine max L. Plant Soil 352:85–97
Liu W, Li RJ, Han TT, Cai W, Fu ZW, Lu YT (2015) Salt stress reduces root meristem size by nitric oxide-mediated modulation of auxin accumulation and signaling in Arabidopsis. Plant Physiol 168:343–U607
Liu J, Li Y, Wang W, Gai J, Li Y (2016) Genome-wide analysis of MATE transporters and expression patterns of a subgroup of MATE genes in response to aluminum toxicity in soybean. BMC Genomics 17:223
Ma JF (2000) Role of organic acids in detoxification of aluminum in higher plants. Plant Cell Physiol 41:383–390
Ma JF (2005) Plant root responses to three abundant soil minerals: silicon, aluminum and iron. Crit Rev Plant Sci 24:267–281
Ma JF (2007) Syndrome of aluminum toxicity and diversity of aluminum resistance in higher plants. Int Rev Cytol 264:225–252
Ma JF, Zheng SJ, Matsumoto H, Hiradate S (1997a) Detoxifying aluminium with buckwheat. Nature 390:569–570
Ma JF, Zheng SJ, Matsumoto H (1997b) Specific secretion of citric acid induced by Al stress in Cassia tora L. Plant Cell Physiol 38:1019–1025
Ma JF, Ryan PR, Delhaize E (2001) Aluminium tolerance in plants and the complexing role of organic acids. Trends Plant Sci 6:273–278
Magalhaes JV, Liu J, Guimaraes CT, Lana UG, Alves VM, Wang YH, Kochian LV (2007) A gene in the multidrug and toxic compound extrusion (MATE) family confers aluminum tolerance in sorghum. Nat Genet 39:1156–1116
Maron LG, Piñeros MA, Guimarães CT, Magalhaes JV, Pleiman JK, Mao C, Shaff J, Belicuas SN, Kochain LV (2010) Two functionally distinct members of the MATE (multi-drug and toxic compound extrusion) family of transporters potentially underlie two major aluminum tolerance QTLs in maize. Plant J 61:728–740
Navarre DA, Wendehenne D, Durner J, Noad R, Klessig DF (2000) Nitric oxide modulates the activity of tobacco aconitase. Plant Physiol 122:573–582
Neill SJ, Desikan R, Hancock JT (2003) Nitric oxide signaling in plants. New Phytol 159:11–35
Peters RA (1961) Further experiments on the inhibition of aconitase by enzymically prepared fluorocitric acid. Biochem J 79:261–268
Pineros MA, Magalhaes JV, Alves VMC, Kochian LV (2002) The physiology and biophysics of an aluminum tolerance mechanism based on root citrate exudation in maize. Plant Physiol 129:1194–1206
Portillo F (2000) Regulation of plasma membrane H+-ATPase in fungi and plants. Biochim Biophys Acta 1469:31–42
Qiu QS, Su XF (1998) The influence of extracellular-side Ca2+ on the activity of the plasma membrane H+-ATPase from wheat roots. Aust J Plant Physiol 25:923–928
Rangel AF, Rao IM, Braun HP, Horst WJ (2010) Aluminum resistance in common bean (Phaseolus vulgaris) involves induction and maintenance of citrate exudation from root apices. Physiol Plant 138:176–190
Ryan PR, Ditomaso JM, Kochian LV (1993) Aluminium toxicity in roots: investigation of the spatial sensitivity and the role of the root cap in Al tolerance. J Exp Bot 44:437–446
Ryan PR, Delhaize E, Randall PJ (1995) Characterization of Al-stimulated efflux of malate from the apices of Al-tolerant wheat roots. Planta 196:103–110
Sami F, Faizan M, Faraz A, Siddiqui H, Yusuf M, Hayat S (2018) Nitric oxide-mediated integrative alterations in plant metabolism to confer abiotic stress tolerance, NO crosstalk with phytohormones and NO-mediated post translational modifications in modulating diverse plant stress. Nitric Oxide 73:22–38
Sasaki M, Yamamoto Y, Ma JF, Matsumoto H (1997) Early events induced by aluminum stress in elongating cells of wheat root. Soil Sci Plant Nutr 43:1009–1014
Shen H, He LF, Sasaki T, Yamamoto Y, Zheng SJ, Ligaba A, Yan XL, Ahn SJ, Yamaguchi M, Sasakawa H, Matsumoto H (2005) Citrate secretion coupled with the modulation of soybean root tip under aluminum stress. Up-regulation of transcription, translation, and threonine-oriented phosphorylation of plasma membrane H+-ATPase. Plant Physiol 238:287–296
Sondergaard TE, Schulz A, Palmgren MG (2004) Energization of transport processes in plants. Roles of the plasma membrane H+-ATPase. Plant Physiol 138:2475–2482
Sun C, Lu L, Liu L, Liu W, Yu Y, Liu X, Hu Y, ** C, Lin X (2014) Nitrate reductase-mediated early nitric oxide burst alleviates oxidative damage induced by aluminum through enhancement of antioxidant defenses in roots of wheat (Triticum aestivum). New Phytol 201:1240–1250
Tomasi N, Kretzschmar T, Espen L, Weisskopf L, Fuglsang AT, Palmgren MG, Neumann G, Varanini Z, Pinton R, Martinoia E, Cesco S (2009) Plasma membrane H+-ATPase-dependent citrate exudation from cluster roots of phosphate-deficient white lupin. Plant Cell Environ 32:465–475
Tovkach A, Ryan PR, Richardson AE, Lewis DC, Rathjen TM, Ramesh S, Tyerman SD, Delhaize E (2013) Transposon-mediated alteration of TaMATElB expression in wheat confers constitutive citrate efflux from root apices. Plant Physiol 161:880–892
Wang YS, Yang ZM (2005) Nitric oxide reduces aluminum toxicity by preventing oxidative stress in the roots of Cassia tora L. Plant Cell Physiol 46:1915–1923
Wang HH, Liang XL, Wan Q, Wang XM, Bi YR (2009) Ethylene and nitric oxide are involved in maintaining ion homeostasis in Arabidopsis callus under salt stress. Planta 230:293–307
Wang HH, Huang JJ, Bi YR (2010) Nitrate reductase-dependent nitric oxide production is involved in aluminum tolerance in red kidney bean roots. Plant Sci 179:281–288
Wang HH, Huang JJ, Liang WH, Liang XL, Bi YR (2013) Involvement of putrescine and nitric oxide in aluminum tolerance by modulating citrate secretion from roots of red kidney bean. Plant Soil 366:479–490
Wang P, Yu W, Zhang J, Rengel Z, Xu J, Han Q, Chen L, Li K, Yu Y, Chen Q (2016) Auxin enhances aluminium-induced citrate exudation through upregulation of GmMATE and activation of the plasma membrane H+-ATPase in soybean roots. Ann Bot 1178:933–940
Wang HH, Li Y, Hou JJ, Huang JJ, Liang WH (2017) Nitrate reductase-mediated nitric oxide production alleviates Al-induced inhibition of root elongation by regulating the ascorbate-glutathione cycle in soybean roots. Plant Soil 410:453–465
Wu X, Li R, Shi J, Wang J, Sun Q, Zhang H, **ng Y, Qi Y, Zhang N, Guo YD (2014) Brassica oleracea MATE encodes a citrate transporter and enhances aluminum tolerance in Arabidopsis thaliana. Plant Cell Physiol 55:1426–1436
Xu MY, You JF, Hou NN, Zhang HM, Chen G, Yang ZM (2010) Mitochondrial enzymes and citrate transporter contribute to the aluminium-induced citrate secretion from soybean (Glycine max) roots. Funct Plant Biol 37:478–482
Yang ZM, Nian H, Sivaguru M, Tanakamaru S, Matsumoto H (2001) Characterization of aluminium-induced citrate secretion in aluminium-tolerant soybean (Glycine max) plants. Physiol Plant 113:64–71
Yang JL, Zheng SJ, He YF, Matsumoto H (2005) Aluminum resistance requires resistance to acid stress: a case study with spinach that exudes oxalate rapidly when exposed to Al stress. J Exp Bot 56:1197–1203
Yang JL, Zhang L, Li YY, You JF, Wu P, Zheng SJ (2006) Citrate transporters play a critical role in aluminium-stimulated citrate efflux in rice bean (Vigna umbellata) roots. Ann Bot 97:579–584
Yang JL, You JF, Li YY, Wu P, Zheng SJ (2007) Magnesium enhances aluminum-induced citrate secretion in rice bean roots by restoring plasma membrane H+-ATPase activity. Plant Cell Physiol 48:66–73
Yang L, Ji J, Wang H, Harris-Shultz KR, Abd Allah EF, Luo Y, Guan Y, Hu X (2016) Carbon monoxide interacts with auxin and nitric oxide to cope with iron deficiency in Arabidopsis. Front Plant Sci 7:112
Zeng H, Feng X, Wang B, Zhu Y, Shen Q, Xu G (2013) Citrate exudation induced by aluminum is independent of plasma membrane H+-ATPase activity and coupled with potassium efflux from cluster roots of phosphorus-deficient white lupin. Plant Soil 366:389–400
Zhang J, Wei J, Li D, Kong X, Rengel Z, Chen L, Yang Y, Cui X, Chen Q (2017) The role of the plasma membrane H+-ATPase in plant responses to aluminum toxicity. Front Plant Sci 8:1757
Zhou Y, Xu XY, Chen LQ, Yang JL, Zheng SJ (2012) Nitric oxide exacerbates Al-induced inhibition of root elongation in rice bean by affecting cell wall and plasma membrane properties. Phytochemistry 76:46–51
Acknowledgements
This work was financially supported by the National Natural Science Foundation of China (U1704121, 31301252, U1704101) and Science Foundation of the Henan Normal University for Outstanding Young Scholars (No. 14YQ003).
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Wang, H., Zhang, Y., Hou, J. et al. Nitric oxide mediates aluminum-induced citrate secretion through regulating the metabolism and transport of citrate in soybean roots. Plant Soil 435, 127–142 (2019). https://doi.org/10.1007/s11104-018-3879-z
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DOI: https://doi.org/10.1007/s11104-018-3879-z