title: Alleviation of water and osmotic stress-induced changes in nitrogen metabolizing enzymes in Triticum aestivum L. cultivars by potassium.
abstract: Present communication reports laboratory and pot experiments conducted to study the influence of water and osmotic stress on nitrogen uptake and metabolism in two wheat (Triticum aestivum L) cultivars with and without potassium supplementation. Polyethylene glycol 6000-induced osmotic stress/restricted irrigation caused a considerable decline in the activity of nitrate reductase, glutamate synthase, alanine and aspartate aminotransferases, and glutamate dehydrogenase. Potassium considerably improved nitrogen metabolism under normal water supply conditions and also resulted in amelioration of the negative impact of water and osmotic stresses indicating that potassium supplementation can be used as a potential tool for enhancing the nitrogen use efficiency in wheat for exploiting its genetic potential.
authors.affiliation: School of Studies in Botany Jiwaji, University Gwalior, Gwalior, India. ahangerma@gmail.com.
authors.forename: Mohammad Abass
authors.initials: MA
authors.lastname: Ahanger
authors.affiliation: School of Studies in Botany Jiwaji, University Gwalior, Gwalior, India.
authors.forename: Megha
authors.initials: M
authors.lastname: Tittal
authors.affiliation: School of Studies in Botany Jiwaji, University Gwalior, Gwalior, India.
authors.forename: Rayees Ahmad
authors.initials: RA
authors.lastname: Mir
authors.affiliation: School of Studies in Botany Jiwaji, University Gwalior, Gwalior, India.
authors.forename: R M
authors.initials: RM
authors.lastname: Agarwal
mesh_terms: D018506:Gene Expression Regulation, Plant; D050901:Nitrate Reductase / Q000378:metabolism; D009584:Nitrogen / Q000378:metabolism; D009997:Osmotic Pressure / Q000502:physiology; D011188:Potassium / Q000378:metabolism*; D014908:Triticum / Q000378:metabolism*; D014867:Water / Q000378:metabolism*
chemical_list: D014867:Water; D050901:Nitrate Reductase; D009584:Nitrogen; D011188:Potassium
keywords: Nitrogen metabolizing enzymes; Potassium; Triticum aestivum L; Water and osmotic stress