From the premise that desiccation-induced damage is associated with a free-radical mechanism of injur\. we address the hypothesis thai expression of desiccation damage is dependent on metabolism. The effects of temperature and O, concentration on the expression of damage were studied in germinating bean [Phaseoius vuigaris L. cv. Pole Kentucky Wtinder) axes and maize {Zea mavs L. cv. Kelvedon G...

Inadequate fertilization or the indiscriminate use of water with high salt concentrations have led to salinization agricultural soils. In this context, biofertilization plant-growth-promoting rhizobacteria (PGPR) is an environmentally benign strategy stimulate plant growth, even under stress. Thus, we studied isolated PGPR consortia from halophytes enhance Swiss chard growth saline conditions. ...

The levels of endogenous polyamines have been shown to increase in plant cells challenged with low temperature; however, the functions of polyamines in the regulation of cold stress responses are unknown. Here, we show that the accumulation of putrescine under cold stress is essential for proper cold acclimation and survival at freezing temperatures because Arabidopsis (Arabidopsis thaliana) mu...

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 ...

Cassava is a tropical origin plant that is sensitive to chilling stress. In order to understand the CBF cold response pathway, a well-recognized regulatory mechanism in temperate plants, in cassava, overexpression of an Arabidopsis CBF3 gene is studied. This gene renders cassava increasingly tolerant to cold and drought stresses but is associated with retarded plant growth, leaf curling, reduce...

compound of 5-aminolevulinic acid (5-ala) has herbicide behavior in high concentration. while, it acts as growth regulator at low concentrations and causes resistance to various stresses incluing cold and salibity. therefore the exogenous application of 5-aminolevulinic acid was investigated to induce cold stress tolerance in young soybean plants (glycine max l.). the experiment was conducted a...

In order to investigate the effects of salt stress on biochemical and physiological responses of two cultivars of alfalfa (Medicago sativa L.) namely, Diabolourde and Yazdi, chlorophyll content, growth parameters, and proline contents of roots and shoots, reducing sugars contents of roots and shoots, and membrane injuries of the plant samples were subjected to 0, 100, 150, and 200 mM NaCl treat...

Environmentally-friendly management techniques such as arbuscular mycorrhizal fungi (AMF) strategies are urgently required to improve plant nutrition and overcome abiotic stress. In this study, we evaluated the influence of symbiotic AMF on four pistachio rootstocks subjected drought (100 % control, 80 %, 60 40 field capacity treatments) salinity (0.91 7.57, 16.12, 24.63 dS/m using NaCl stress ...