___

• Aebi H (1984). Catalase in vitro. Methods Enzymol 105: 121–126.
• Agboma PC, Jones MGK, Peltonen-Sainio P, Rita H, Pehu E (1997a). Exogenous glycine betaine enhances grain yield of maize, sorghum and wheat grown under two supplementary watering regimes. J Agron Crop Sci 178: 29–37.
• Agboma PC, Peltonen-Sainio P, Hinkkanen R, Pehu E (1997b). Effect of foliar application of glycine betaine on yield components of drought stressed tobacco plants. J Exp Agr 33: 345–352.
• Ali B, Tao QJ, Zhou YF, Gill RA, Ali S, Rafiq MT, Xu L, Zhou WJ (2013a). 5-Aminolevolinic acid mitigates the cadmium-induced changes in Brassica napus as revealed by the biochemical and ultra-structural evaluation of roots. Ecotox Environ Saf 92: 271–280.
• Ali B, Wang B, Ali S, Ghani MA, Hayat MT, Yang C, Xu L, Zhou WJ (2013b). 5-Aminolevulinic acid ameliorates the growth, photosynthetic gas exchange capacity and ultrastructural changes under cadmium stress in Brassica napus L. J Plant Growth Regul 32: 604–614.
• Ali S, Cai S, Zeng F, Qiu B, Zhang GP (2012). The effect of salinity and chromium stresses on uptake and accumulation of mineral elements in barley genotypes differing in salt tolerance. J Plant Nutr 35: 827–839.
• Ali S, Farooq MA, Hussain S, Yasmeen T, Abbasi GH, Zhang GP (2013a). Alleviation of chromium toxicity by hydrogen sulfide in barley. Environ Toxic Chem 32: 2234–2239.
• Ali S, Farooq MA, Jahangir MM, Abbas F, Bharwana SA, Zhang GP (2013b). Effect of chromium toxicity on photosynthesis and anti-oxidative system in barley as affected by nitrogen form. Biol Plant 57: 758–763.
• Ali S, Farooq MA, Yasmeen T, Hussain S, Arif MS, Abbas F, Bharwana SA, Zhang GP (2013c). The influence of silicon on barley growth, photosynthesis and ultra-structure under chromium stress. Ecotox Environ Safe 89: 66–72.
• Allakhverdiev SI, Los DA, Mohanty P, Nishiyama Y, Murata N (2007). Glycinebetaine alleviates the inhibitory effect of moderate heat stress on the repair of photosystem II during photoinhibition. Biochem Biophys Acta 1767: 1363–1371.
• Allakhverdieva MY, Mamedov DM, Gasanov RA (2001).The effect of glycinebetaine on the heat stability of photosynthetic reactions in thylakoid membranes. Turk J Bot 25: 11–17.
• Atici O, Agar G, Battal P (2005). Changes in phytohormone contents in chickpea seeds germinating under lead or zinc stress. Biol Plan 49: 215–222.
• Bradford MM (1976). A rapid and sensitive method for the quantification of microgram quantities of protein utilizing the principle of protein-dye binding. Anal Biochem 72: 248–254.
• Bray EA, Bailey-Serres J, Weretilnyk E (2000). Responses to abiotic stress. In: Buchanan B, Gruissem W, Jones R, editors. Biochemistry and Molecular Biology of Plants. Rockville, MD, USA: American Society of Plant Biologists, pp. 1158–1203.
• Chen TH, Murata N (2002). Enhancement of tolerance to abiotic stress by metabolic engineering of betaines and other compatible solutes. Curr Opin Plant Biol 5: 250–257.
• Chen TH, Murata N (2008). Glycinebetaine: an effective protectant against abiotic stress in plants. Trends Plant Sci 13: 499–505.
• Chen TH, Murata N (2011). Glycinebetaine protects plants against abiotic stress: mechanisms and biotechnological applications. Plant Cell Environ 34: 1–20.
• Clemens S (2001). Molecular mechanisms of plant metal tolerance and homeostasis. Planta 212: 475–786.
• Dhindsa RS, Dhindsa PP, Thorpe TA (1981). Leaf senescence: correlated with increased level of membrane permeability and lipid peroxidation, and decreased levels of superoxide dismutase and catalase. J Exp Bot 32: 93–97
• Dionisio-Sese ML, Tobita S (1998). Antioxidant responses of rice seedlings to salinity stress. Plant Sci 135: 1–9.
• Farooq M, Wahid A, Le DJ, Cheema SA, Aziz T (2010). Comparative time course action of the foliar applied glycinebetaine, salicylic acid, nitrous oxide, brassinosteroids and spermine in improving drought resistance of rice. J Agron Crop Sci 196: 336–345.
• Farooq MA, Ali S, Hameed A, Ishaque W, Mahmood K, Iqbal Z (2013). Alleviation of cadmium toxicity by silicon is related to elevated photosynthesis, antioxidant enzymes; suppressed cadmium uptake and oxidative stress in cotton. Ecotoxicol Environ Safe 96: 242–249.
• Gajewska E, Sklodowska M, Slaba M, Mazur J (2006). Effect of nickel on antioxidative enzyme activities, praline and chlorophyll contents in wheat shoots. Plant Biol 50: 653–659.
• Gupta DK, Nicolosoa FT, Schetingerb MRC, Rossatoa LV, Pereirab LB, Castroa GY, Srivastavac S, Tripathi RD (2009). Antioxidant defense mechanism in hydroponically grown Zea mays seedlings under moderate lead stress. J Hazard Mater 172: 479–484.
• Hall JL (2002). Cellular mechanisms for heavy metal detoxification and tolerance. J Exp Bot 53: 1–11.
• Hamid N, Bukhari N, Jawaid F (2010). Physiological responses of Phaseolus vulgaris to different lead concentrations. Pak J Bot 42: 239–246.
• Islam MM, Hoque MA, Okuma E, Nasrin M, Banu A, Shimoishi Y, Nakamura Y, Murata Y (2009). Exogenous proline and glycinebetaine increase antioxidant enzyme activities and confer tolerance to cadmium stress in cultured tobacco cells. J Plant Physiol 166: 1587–1597.
• Jana S, Choudhuri MA (1981). Glycolate metabolism of three submerged aquatic angiosperms during aging. Aquat Bot 12: 345–354.
• Liu J, Li K, Xu J, Zhang Z, Ma T, Lu X, Yang J, Zhu Q (2004). Lead toxicity, uptake and translocation in different rice cultivars. Plant Sci 165: 793–802.
• Lutts S (2000). Exogenous glycine betaine reduces sodium accumulation in salt-stressed rice plants. Int Rice Res Notes 25: 39–
• MacFarlane GR (2003). Chlorophyll a fluorescence as a potential biomarker of zinc stress in the grey mangrove, Avicennia marina. Bull Environ Contam Toxicol 70: 90–96.
• Meloni DA, Oliva MA, Martinez CA (2003). Photosynthesis and activity of superoxide dismutase, peroxidase and glutathione reductase in cotton under salt stress. Environ Exp Bot 49: 69–76.
• Metzner H, Rau H, Senger H (1965). Untersuchungen zur Synchronisierbakeit einzelner Pigmentmangel-Mutation von Chlorella. Planta 65: 186–194 (in German).
• Nakano Y, Asada K (1981). Hydrogen peroxide is scavenged by ascorbate specific peroxidase in spinach chloroplasts. Plant Cell Physiol 22: 867–880.
• Nomura M, Hibino T, Takabe T, Sugiyama T, Yokota A, Miyake H, Takabe T (1998). Transgenically produced glycinebetaine protects ribulose-1, 5-biophosphate carboxylase/oxygenase from inactivation of Synechococcus sp. PCC7942 under salt stress. Plant Cell Physiol 32: 425–432.
• Park EJ, Jeknic Z, Sakamoto A, Denoma J, Yuwansiri R, Murata N, Chen TH (2004). Genetic engineering of glycinebetaine synthesis in tomato protects seeds, plants, and flowers from chilling damage. Plant J 40: 474–487.
• Radic S, Babic M, Skobic D, Roje V, Pevalek-Kozlina B (2010). Ecotoxicological effects of aluminum and zinc on growth and antioxidants in Lemna minor L. Ecotoxicol Environ Safe 73: 336–342.
• Rhodes D, Hanson AD (1993). Quaternary ammonium and tertiary sulfonium compounds in higher-plants. Annu Rev Plant Physiol Plant Mol Biol 44: 357–384.
• Sanita DT, Gabbrielli LSR (1999). Response to cadmium in higher plants. J Exp Bot 41: 105–130.
• Sekmen Esen AH, Özgür R, Uzilday B, Tanyolaç ZÖ, Dinç A (2012). The response of the xerophytic plant Gypsophila aucheri to salt and drought stresses: the role of the antioxidant defence system. Turk J Bot 36: 697–706.
• Shahid M, Dumat C, Silvestre J, Pinelli E (2012). Effect of fulvic acids on lead-induced oxidative stress to metal sensitive Vicia faba L. plant. Biol Fert Soils 48: 689–697
• Shao G, Chen M, Wang W, Zhang G (2008). The effect of salinity pretreatment on Cd accumulation and Cd-induced stress in BADH-transgenic and nontransgenic rice seedlings. J Plant Growth Regul 27: 205–210.
• Strubinskai J, Hanaka A (2011). Adventitious root system reduces lead uptake and oxidative stress in sunflower seedlings. Biol Plan 55: 771–774.
• Subbarao GV, Wheeler RM, Levine LH, Stutte GW (2001). Glycinebetaine accumulation, ionic and water relations of redbeet at contrasting levels of sodium supply. J Plant Physiol 158: 767–776.
• Szalai G, Krantev A, Yordanova R, Popova LP, Janda T (2013). Influence of salicylic acid on phytochelatin synthesis in Zea mays during Cd stress. Turk J Bot 37: 708–714.
• Szőllősi R, Varga IS, Erdei L, Mihalik E (2009). Cadmium-induced oxidative stress and antioxidative mechanisms in germinating Indian mustard (Brassica juncea L.) seeds. Ecotoxicol Environ Safe 72: 1337–1342.
• Yamamoto Y, Yukiko, Kobayashi Y, Matsumoto H (2001). Lipid peroxidation is an early symptom triggered by aluminum, but not the primary cause of elongation inhibition in pea roots. Plant Physiol 125: 199–208.
• Yancey PH (1994). Compatible and counteracting solutes. In: Strange K, editor. Cellular and Molecular Physiology of Cell Volume Regulation. Boca Raton, FL, USA: CRC Press, pp. 81–109.
• Yang M, Xiao X, Miao X, Guo Z, Wang F (2012). Effect of amendments on growth and metal uptake of giant reed (Arundo donax L.) grown on soil contaminated by arsenic, cadmium and lead. T Nonferr Metal Soc 22: 1462–1469.
• Yang X, Liang Z, Wen X, Lu C (2008). Genetic engineering of the biosynthesis of glycinebetaine leads to increased tolerance of photosynthesis to salt stress in transgenic tobacco plants. Plant Mol Biol 66: 73–86.
• Yang X, Lu C (2005). Photosynthesis is improved by exogenous glycinebetaine in salt-stressed maize plants. Physiol Plan 124: 343–352.
• Zhang L, Gao M, Zhang L, Li M, Han M, Ashok Alva K, ASHRAF M (2013). Role of exogenous glycinebetaine and humic acid in mitigating drought stress-induced adverse effects in Malus robusta seedlings. Turk J Bot 37: 920–929.
• Zhang XZ (1992). The measurement and mechanism of lipid peroxidation and SOD, POD and CAT activities in biological system. In: Zhang XZ, editor. Research Methodology of Crop Physiology. Beijing, China: Agriculture Press, pp. 208–211.