Abhinandan K, Skori L, Stanic M, Hickerson N M N, Jamshed M, Samuel M A (2018). Abiotic stress signaling in wheat - An inclusive overview of hormonal interactions during abiotic stress responses in wheat. Front Plant Sci 9: 734. doi: 10.3389/fpls.2018.00734
Alia and Saradhi PP (1991). Proline accumulation under heavy metal stress. J Plant Physiol 138: 554-558. https://doi.org/10.1016/S0176-1617(11)80240-3
Anwar A, She M, Wang K, Riaz B, Ye X (2018). Biological roles of ornithine aminotransferase (OAT) in plant stress tolerance: present progress and future perspectives. Int J Mol Sci 19: 3681. doi: 10.3390/ijms19113681
Anwar A, She M, Wang K, Ye X (2020). Cloning and molecular characterization of Triticum aestivum ornithine amino transferase (TaOAT) encoding genes. BMC Plant Biol 20: 187-187. https://doi.org/10.1186/s12870-020-02396-2
Arnon DI (1949). Copper enzymes in isolated chloroplasts. Polyphenoloxidase in beta vulgaris. Plant Physiol 24: 1. doi: 10.1104/pp.24.1.1.
Asada K (1999). The water-water cycle in chloroplasts: Scvaenging of active oxygens and dissipation of excess photons. Annu Rev Plant Physiol Plant Mol Biol 50: 601-639. doi: 10.1146/annurev.arplant.50.1.601
Bandurska H, Niedziela J, Pietrowska-Borek M, Nuc K, Chadzinikolau T, Radzikowska D (2017). Regulation of proline biosynthesis and resistance to drought stress in two barley (Hordeum vulgare L.) genotypes of different origin. Plant Physiol Biochem 118: 427-437. doi: 10.1016/j.plaphy.2017.07.006.
Charest C, Ton Phan C (1990). Cold acclimation of wheat (Triticum aestivum): Properties of enzymes involved in proline metabolism. Physiol Plantarum 80: 159-168. https://doi.org/10.1111/j.1399-3054.1990.tb04391.x
Chaves MM, Oliveira MM (2004). Mechanisms underlying plant resilience to water deficits: Prospects for water-saving agriculture. J Exp Bot 55: 2365-2384. doi: 10.1093/jxb/erh269
Da Rocha IMA, Vitorello VA, Silva JS, Ferreira-Silva SL, Viégas RA, Silva EN et al. (2012). Exogenous ornithine is an effective precursor and the δ-ornithine amino transferase pathway contributes to proline accumulation under high N recycling in salt-stressed cashew leaves. J Plant Physiol 169: 41-49.
Dat J, Vandenabeele S, Vranova E, Van Montagu M, Inze D, van Breusegem F (2000). Dual action of the active oxygen species during plant stress responses. Cell Mol Life Sci 57: 779-795. doi: 10.1007/s000180050041
Delauney A, Hu C, Kishor P, Verma D (1993). Cloning of ornithine delta-aminotransferase cDNA from Vigna aconitifolia by trans-complementation in Escherichia coli and regulation of proline biosynthesis. J Biol Chem 268: 18673-18678.
Ditta G, Stanfield S, Corbin D, Helinski DR (1980). Broad host range DNA cloning system for gram-negative bacteria: construction of a gene bank of Rhizobium meliloti. Proc Natl Acad Sci USA 77: 7347-7351. https://dx.doi.org/10.1073%2Fpnas.77.12.7347
Dudziak K, Zapalska M, Börner A, Szczerba H, Kowalczyk K, Nowak M et al. (2019) Analysis of wheat gene expression related to the oxidative stress response and signal transduction under short-term osmotic stress. Sci Rep 9: 2743. https://doi.org/10.1038/s41598-019-39154-w
Echevarría-Zomeño S, Ariza D, Jorge I, Lenz C, Del Campo A, Jorrín J V, Navarro R M (2009). Changes in the protein profile of Quercus ilex leaves in response to drought stress and recovery. J Plant Physiol 166: 233-245. doi: 10.1016/j.jplph.2008.05.008
Foyer C H, Noctor G, (2012). Managing the cellular redox hub in photosynthetic organisms. Plant Cell Environ 35: 199-201. doi: 10.1111/j.1365-3040.2011.02453.x
Funck D, Stadelhofer B, Koch W (2008). Ornithine-delta-aminotransferase is essential for arginine catabolism but not for proline biosynthesis. BMC Plant Biol 8: 40. https://doi.org/10.1186/1471-2229-8-40
Gao C, Wang Y, Liu G, Wang C, Jiang J, Yang C (2010). Cloning of ten peroxidase (POD) genes from Tamarix hispida and characterization of their responses to abiotic stress. Plant Mol Biol Rep 28: 77. https://doi.org/10.1007/s11105-009-0129-9.
Goharrizi K J, Moosavi S S, Amirmahani F, Salehi F, Nazari M (2020). Assessment of changes in growth traits, oxidative stress parameters, and enzymatic and non-enzymatic antioxidant defense mechanisms in Lepidium draba plant under osmotic stress induced by polyethylene glycol. Protoplasma 257: 459-473. doi: 10.1007/s00709-019-01457-0.
Guo X, Su H, Shi Q, Fu S, Wang J, Zhang X, Han F (2016). De novo centromere formation and centromeric sequence expansion in wheat and its wide hybrids. PloS Genet 12: e1005997. https://doi.org/10.1371/journal.pgen.1005997
Guan C, Huang YH, Cen HF, Cui X, Tian DY, Zhang YW (2019). Overexpression of the Lolium perenne L. delta1-pyrroline 5-carboxylate synthase (LpP5CS) gene results in morphological alterations and salinity tolerance in switchgrass (Panicum virgatum L.). Plos One 14: e0219669. https://doi.org/10.1371/journal.pone.0219669
Hare PD, Cress WA van Staden J (1999). Proline synthesis and degradation: a model system for elucidating stress-related signal transduction. J Exp Bot 50: 413-434. doi: 10.1093/jxb/50.333.413.
Hein J A, Sherrard M E, Manfredi K P, Abebe T (2016). The fifth leaf and spike organs of barley (Hordeum vulgare L.) display different physiological and metabolic responses to drought stress. BMC Plant Biol 16: 248. doi: 10.1186/s12870-016-0922-1.
Hervieu F, Dily FL, Billard J P, Huault C (1994). Effects of water-stress on proline content and ornithine aminotransferase activity of radish cotyledons. Phytochemistry 37: 1227-1231. https://doi.org/10.1016/S0031-9422 (00)90389-3
Hervieu F, Dily Fl, Huault C, Billard JP (1995). Contribution of ornithine aminotransferase to proline accumulation in NaCl‐treated radish cotyledons. Plant Cell Environ 182: 205-210. https://doi.org/10.1111/j.1365-3040.1995.tb00354.x
Hu C, Delauney AJ, Verma D (1992). A bifunctional enzyme (delta 1-pyrroline-5-carboxylate synthetase) catalyzes the first two steps in proline biosynthesis in plants. Proc Natl Acad Sci USA 89: 9354-9358. https://dx.doi.org/10.1073%2Fpnas.89.19.9354
Hussain B, Khan MA, Ali Q, Shaukat S (2013). Double haploid production in wheat through microspore culture and wheat × maize crossing system: An overview. Int J Agron Vet Med Sci 6: 332-344. doi: 10.5455/ijavms.168.
Ishida Y, Tsunashima, M, Hiei Y Komari T (2015). Wheat (Triticum aestivum L.) transformation using immature embryos, in Agrobacterium Protocols. Springer, pp. 189-198. https://doi.org/10.1007/978-1-4939-1695-5_15
Jung S (2004). Variation in antioxidant metabolism of young and mature leaves of Arabidopsis thaliana subjected to drought. Plant Sci 166: 459-466. doi: 10.1016/j.plantsci.2003.10.012
Kishor P, Hong Z, Miao G H, Hu C, Verma D (1995). Overexpression of [delta]-pyrroline-5-carboxylate synthetase increases proline production and confers osmotolerance in transgenic plants. Plant Physiol 108: 1387-1394. doi: https://doi.org/10.1104/pp.108.4.1387
Liang X, Zhang L, Natarajan SK, Becker DF (2013). Proline mechanisms of stress survival. Antioxid. Redox Signal 19: 998-1011. https://doi.org/10.1089/ars.2012.5074
Liu H, Sultan M A, Liu X L, Zhang J, Yu F and Zhao H X (2015). Physiological and comparative proteomic analysis reveals different drought responses in roots and leaves of drought-tolerant wild wheat (Triticum boeoticum). PloS One 10: e0121852. doi: 10.1371/journal.pone.0121852
Livak K J and Schmittgen T D (2001). Analysis of relative gene expression data using real-time quantitative PCR and the 2−ΔΔCT method. Methods 25: 402-408. doi:10.1006/meth.2001.1262
Lopez Galiano M J, García Robles I, Gonzalez-Hernandez A I, Camanes G, Vicedo B, Real M D, Rausell C, (2019). Expression of miR159 is altered in tomato plants undergoing drought stress. Plants 8: 201. https://doi.org/10.3390/plants8070201
Miller G, Honig A, Stein H, Suzuki N, Mittler R, Zilberstein A (2009). Unraveling delta1-pyrroline-5-carboxylate-proline cycle in plants by uncoupled expression of proline oxidation enzymes. J Biol Chem 284: 26482-26492. doi: 10.1074/jbc.M109.009340
Paolacci AR, Tanzarella OA, Porceddu E Ciaffi M (2009). Identification and validation of reference genes for quantitative RT-PCR normalization in wheat. BMC Mol Biol 10: 11. https://doi.org/10.1186/1471-2199-10-11
Passricha N, Saifi S, Khatodia S Tuteja N (2016). Assessing zygosity in progeny of transgenic plants: current methods and perspectives. J Biol Methods 3: 3. https://dx.doi.org/10.14440%2Fjbm.2016.114
Rana V, Ram S, Nehra K, Sharma I (2016). Expression of genes related to Naþ exclusion and proline accumulation in tolerant and susceptible wheat genotypes under salt stress. Cereal Res Commun 44: 404-413. https://doi.org/10.1556/0806.44.2016.009
Raorane M L, Pabuayon I M, Varadarajan A R, Mutte S K, Kumar A, Treumann A, Kohli A (2015). Proteomic insights into the role of the large-effect QTL qDTY 12.1 for rice yield under drought. Mol Breed 35: 139. doi: 10.1007/s11032-015-0321-6
Rizzi Y, Monteoliva M, Fabro G, Grosso C, Laróvere L, Alvarez M (2015). P5CDH affects the pathways contributing to proline synthesis after ProDH activation by biotic and abiotic stress conditions. Front Plant Sci 6: 572. https://doi.org/10.3389/fpls.2015.00572
Rong W, Qi L, Wang A, Ye X, Du L, Liang H, Zhang Z (2014). The ERF transcription factor TaERF3 promotes tolerance to salt and drought stresses in wheat. Plant Biotechnol J 12: 468-479. https://doi.org/10.1111/pbi.12153
Roosens N H, Bitar F A, Loenders K, Angenon G, Jacobs M (2002). Overexpression of ornithine-δ-aminotransferase increases proline biosynthesis and confers osmotolerance in transgenic plants. Mol Breed 9: 73-80. https://doi.org/10.1023/A:1026791932238
Roosens N H, Thu T T, Iskandar H M, Jacobs M (1998). Isolation of the ornithine-delta-aminotransferase cDNA and effect of salt stress on its expression in Arabidopsis thaliana. Plant Physiol 117: 263-271. https://doi.org/10.1104/pp.117.1.263
Roosens N H, Willem R, Li Y, Verbruggen I, Biesemans M, Jacobs M (1999). Proline metabolism in the wild-type and in a salt-tolerant mutant of Nicotiana plumbaginifolia studied by13C-nuclear magnetic resonance imaging. Plant Physiol 121: 1281-1290. https://doi.org/10.1104/pp.121.4.1281
Santra M, Wang H, Seifert S, Haley S (2017). Doubled haploid laboratory protocol for wheat using wheat-maize wide hybridization. Methods Mol Biol 1679: 235-249. https://doi.org/10.1007/978-1-4939-7337-8_14
Sarker U, Islam M T, Oba S (2018). Salinity stress accelerates nutrients, dietary fiber, minerals, phytochemicals and antioxidant activity in Amaranthus tricolor leaves. PloS One 13: e0206388. https://doi.org/10.1371/journal.pone.0206388
Sarker U, Oba S (2018a). Augmentation of leaf color parameters, pigments, vitamins, phenolic acids, flavonoids and antioxidant activity in selected Amaranthus tricolor under salinity stress. Sci Rep 8: 12349. doi: 10.1038/s41598-018-30897-6.
Sarker U, Oba S (2018b). Drought stress effects on growth, ROS markers, compatible solutes, phenolics, flavonoids, and antioxidant activity in Amaranthus tricolor. Appl Biochem Biotech 186: 999-1016. doi: 10.1007/s12010-018-2784-5.
Sarker U, Oba S (2018c). Catalase, superoxide dismutase and ascorbate-glutathione cycle enzymes confer drought tolerance of Amaranthus tricolor. Sci Rep 8: 16496-16496. https://doi.org/10.1038/s41598-018-34944-0
Sarker U, Oba S. (2020). The response of salinity stress-induced A. tricolor to growth, anatomy, physiology, non-enzymatic and enzymatic antioxidants. Front Plant Sci 11: 1354. https://doi.org/10.3389/fpls.2020.559876
Savouré A, Jaoua S, Hua XJ, Ardiles W, Van Montagu M, Verbruggen N (1995). Isolation, characterization, and chromosomal location of a gene encoding the Δ1-pyrroline-5-carboxylate synthetase in Arabidopsis thaliana. FEBS Lett 372: 13-19. https://doi.org/10.1016/0014-5793(95)00935-3
Schobert B (1977). Is there an osmotic regulatory mechanism in algae and higher plants? J Theor Biol 68: 17-26. https://doi.org/10.1016/0022-5193(77)90224-7
Solomon A, Beer S, Waisel Y, Jones GG, Paleg L (2006). Effects of NaCl on the carboxylating activity of Rubisco from Tamarix jordanis in the presence and absence of proline-related compatible solutes. Physiol Plant 90: 198-204. https://doi.org/10.1111/j.1399-3054.1994.tb02211.x
Stránská J, Kopečný D, Tylichová M, Snégaroff J, Šebela M (2008). Ornithine δ-aminotransferase: an enzyme implicated in salt tolerance in higher plants. Plant Signal Behav 3: 929-935. https://doi.org/10.4161/psb.6771
Szabados L, Savoure A (2010). Proline: A multifunctional amino acid. Trends Plant Sci 15: 89-97. https://doi.org/10.1016/j.tplants.2009.11.009
Szoke A, Miao GH, Hong Z, Verma DPS (1992). Subcellular location of δ1-pyrroline-5-carboxylate reductase in root/nodule and leaf of soybean. Plant Physiol 99: 1642-1649. https://dx.doi.org/10.1104%2Fpp.99.4.1642
Veljovic-Jovanovic S, Kukavica B, Stevanovic B, Navari-Izzo F (2006). Senescence-and drought-related changes in peroxidase and superoxide dismutase isoforms in leaves of Ramonda serbica. J Exp Bot 57: 1759-1768. https://doi.org/10.1093/jxb/erl007
Wang WB, Kim YH, Lee HS, Kim KY, Deng XP, Kwak SS (2009). Analysis of antioxidant enzyme activity during germination of alfalfa under salt and drought stresses. Plant Physiol Biochem 47: 570-577. doi: 10.1016/j.plaphy.2009.02.009.
Wang K, Liu H, Du L, Ye X (2017). Generation of marker-free transgenic hexaploid wheat via an Agrobacterium-mediated co-transformation strategy in commercial Chinese wheat varieties. Plant Biotech J 15: 614-623. https://doi.org/10.1111/pbi.12660
Wu L, Fan Z, Guo L, Li Y, Zhang W, Qu LJ, Chen Z (2003). Over-expression of an Arabidopsis δ-OAT gene enhances salt and drought tolerance in transgenic rice. Chin Sci Bull 48: 2594-2600. https://doi.org/10.1360/03wc0218
Yang C W, Kao C H (1999). Importance of ornithine-δ-aminotransferase to proline accumulation caused by water stress in detached rice leaves. Plant Growth Regul 27: 191-194. https://doi.org/10.1023/A:1006226732574
Yang C W, Wang J, Kao C (2000). The relation between accumulation of abscisic acid and proline in detached rice leaves. Biol Plant 43: 301-304. https://doi.org/10.1023/A:1002781016598
Yoshiba Y, Kiyosue T, Katagiri T, Ueda H, Mizoguchi T, Yamaguchi-Shinozaki K, Shinozaki K (1995). Correlation between the induction of a gene for Δ1-pyrroline-5-carboxylate synthetase and the accumulation of proline in Arabidopsis thaliana under osmotic stress. Plant J 75: 751-760. https://doi.org/10.1046/j.1365-313X.1995.07050751.x
Yoshiba Y, Kiyosue T, Nakashima K, Yamaguchi-Shinozaki K, Shinozaki K (1997). Regulation of levels of proline as an osmolyte in plants under water stress. Plant Cell Physiol 38: 1095-1102. https://doi.org/10.1093/oxfordjournals.pcp.a029093
You J, Hu H, Xiong L (2012). An ornithine δ-aminotransferase gene OsOAT confers drought and oxidative stress tolerance in rice. Plant Sci 197: 59-69. https://doi.org/10.1016/j.plantsci.2012.09.002
Zhang G, Chen M, Li L, Xu Z, Chen X, Guo J, Ma Y (2009). Overexpression of the soybean GmERF3 gene, an AP2/ERF type transcription factor for increased tolerances to salt, drought, and diseases in transgenic tobacco. J Exp Bot 60: 3781-3796. https://doi.org/10.1093/jxb/erp214