Nitric oxide-mediated drought stress tolerance via improvement crop yield, antioxidants, membrane integrity and reducing the oxidative stress of two faba bean cultivars
Journal Title: Journal of Multidisciplinary Sciences - Year 2019, Vol 1, Issue 2
Abstract
Nitric oxide (NO) is a prevalent signaling molecule that regulates plant responses to potential plant stresses like drought. Growth and seeds yield/plant improvement under drought stress was the net result of the regulatory role of NO-priming on different physiological pathways of two faba bean plants differing in their drought tolerance. NO efficiently enhanced the machinery of photosynthesis via increasing chlorophyll a, b and carotenoids which associated with lowering of hydrogen peroxide, superoxide anion and hydroxyl radical. Thus, the tested dose of NO had an efficient free radical quenching system as witnessed from activating phenolics, ASA, SOD, APX, and CAT. All these up-regulations reflected on maintaining higher membrane stability via lowered lipid peroxidation and electrolyte leakage under both control and drought treated plants. The promoter role of NO on metabolic and antioxidative activities could serve as an important component of the defense mechanism against oxidative burst induced by drought stress.
Authors and Affiliations
Nahla Dief, Eman Salah Esmail Aldaby, Mona Fathi AbdElmowla Dawood, Mohammed Ali Ahmed Zidan
Performance of some advanced spring wheat lines under optimum and late sown conditions in different regions of Bangladesh
Eleven advanced lines of spring wheat along with check varieties BARI Gom 21, BARI Gom 26 and BARI Gom 32 were evaluated at Bangladesh Wheat and Maize Research Institute (BWMRI), Dinajpur; Regional Wheat Research Center...
In vitro estimation of the phosphate-solubilizing potentiality of rhizosphere fungi isolated from New Valley Governorate, Egypt
Phosphate solubilization, production of IAA, and other related compounds by fungi interact with plants as part of its colonization, leading to growth promotion, induced resistance, and modification of basal plant defense...
Production of enzymes by five Pleurotus spp. developed in solid and liquid state fermentation using three agricultural wastes
Oyster mushrooms (Pleurotus spp.) can bioconvert lignocellulosic residues due to the secretion of extracellular enzymes. The production of hydrolytic and oxidative enzymes by five Pleurotus spp. (P. ostreatus, P. columbi...
Aspergillus creber and A. keveii, two new records as endophytes from wild medicinal plants in Egypt
In the present research and during surveys of mycobiota inhabiting leaves and roots of some wild and medicinal plants in El-Kharga Oasis, New Valley Governorate, Egypt, two significant isolates were isolated for the firs...
Biological characterization of two bacteriophages infecting Klebsiella pneumoniae
Klebsiella became an increasingly important source of community-acquired and nosocomial infections. Extensive broad-spectrum utilization of antibiotics in hospitalized patients has contributed to both increased carriages...