Modulation of nitrogen metabolising enzymes and the photosynthetic pigments in wheat upon exogenous application of marigold leachates.

Laboratory and pot experiments were conducted to evaluate the influence of leachates of fresh/dry parts of marigold on photosynthetic pigments and nitrogen metabolism of wheat. Considerable decline in chlorophylls and carotenoids and the activities of enzymes of nitrogen metabolism (nitrate reductase, alanine and aspartate aminotransferases, glutamate dehydrogenase and glutamate synthase) was noticed in plants treated with higher concentration of fresh (30% w/v) or dry (10% w/v) leaf and flower leachates of marigold. However, treatment of lower concentrations i.

Differential activity of wheat antioxidant defense system and alterations in the accumulation of osmolytes at different developmental stages as influenced by marigold ( L.) leachates.

Experiments were conducted to evaluate the effectivity of L. leachates on various growth, physiological, and biochemical parameters of wheat at different stages of growth. Results suggested that L.

Supplementation of potassium alleviates water stress-induced changes in Sorghum bicolor L.

This report discusses water stress-induced changes and their amelioration by added potassium in Sorghum bicolor L. Chlorophylls, carotenoids, and the activity of nitrogen metabolizing enzymes viz., nitrate reductase, alanine aminotransferase and aspartate aminotransferase were adversely affected under water stress and restricted irrigation.

Combined effects of brassinosteroid and kinetin mitigates salinity stress in tomato through the modulation of antioxidant and osmolyte metabolism.

Salinity stress reduces growth and yield productivity of most crop plants. Potentiality of kinetin (Kn) and epi-brassinolide (EBL), either individually or combinedly in preventing the salinity (100 mM NaCl) stress mediated oxidative damage and photosynthetic inhibition was studied in Solanum lycopersicum. Combined application of Kn and EBL imparted much prominent impact on the growth, photosynthesis and metabolism of antioxidants, osmolytes and secondary metabolites.

Alleviation of water and osmotic stress-induced changes in nitrogen metabolizing enzymes in Triticum aestivum L. cultivars by potassium.

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.