Fatty acid desaturases play important role in plant responses to abiotic stresses including cold, high temperature, drought, and osmotic stress. In this work, we provide the evidence that Fad6, a chloroplast desaturase, is required for salt tolerance during the early seedling development of Arabidopsis. Expression of Fad6 was responsive to salt and osmotic stress. Compared with the wild-type pl...

Salicylic acid (SA) is one component of a complex signalling pathway that is induced by a number of biotic and abiotic stresses. Exposing seedling radicles to aqueous solutions of 0.5 mM salicylic acid for 24 h before chilling at 2.5 degrees C for 1-4 days reduced the chilling-induced increase in electrolyte leakage from maize and rice leaves, and cucumber hypocotyls, but not from their radicle...

An outdoor pot experiment was carried out in sand culture to investigate the response of spinach (Spinacia oleracea ) cv. “Matador” grown at high salinity to supplementary phosphorus and potassium. Plants were tested during a period from germination to vegetative growth stage. Treatments initiated for seedling and more matured vegetative growth stages were (1) complete nutrient solution alone (...

Lime is an important commercial product in tropical and subtropical regions, where drought stress becoming one of the most severe environmental challenges agricultural sector. Melatonin antioxidant molecule that helps plants regulate their development respond to a variety stresses. In this research, effects exogenous melatonin treatments were evaluated at different concentrations (0, 50, 100, 1...

Polyamines play a fundamental role in the functioning of all cells. Their regulatory plant development, their function under stress conditions, and metabolism have been well documented as regards both synthesis catabolism an increasing number species. However, majority these studies concentrate on levels most abundant polyamines, sometimes providing data enzyme activity or gene expression durin...

to date, the effects of nanoparticles on woody plants remain unaddressed. this study reveals some of the physiological and biochemical effects of sio2 nanoparticles on wild pear seedlings. the seedlings were irrigated with different concentrations of nano silica (0, 10, 100, 500 and 1000 mg/l) for 14 days. nanoparticle adsorption and absorption, biomass allocation, gas exchange, relative water ...

salicylic acid (sa) is considered to be plant signal molecule that plays a key role in plant growth, development, and defense responses. the physiological mechanism of exogenous sa to affect the senescence of cut lisianthus flowers during vase life was investigated. fresh cut lisianthus flowers were treated with distilled water (control), 0.5, 1 and 2 mm sa and then held at 25◦c up to 12 days. ...

The objective of this study was to assess changes in membrane permeability during rehydration of freeze-dried Weissella paramesenteroides LC11. Viability was assessed using the electrical conductivity measurement (ms cm -1 g -1 dry weight) and the plate count method (cfu g -1 dry weight). The symptoms of injury included an increase in the electrolyte leakage during the first 4 h of rehydration ...

The effect of nano silica (50 mL L−1) and melatonin (75 µM) individually or in combination foliar applications on the morphophysiological, biochemical yield properties pea plants under salinity stress conditions was evaluated. Salt caused a remarkable decrease growth characteristics; for example, plant dry weight, height, number flowers plant−1, pods weight 100 green seeds protein concentration...