Augmentation of drought stress tolerance of two wheat cultivars through exogenous spraying of silicon
Journal Title: JOURNAL OF ADVANCES IN BIOLOGY - Year 2015, Vol 8, Issue 1
Abstract
Two wheat cultivars cv. Sohag 3 (durum wheat) and cv. Seds 12 (bread wheat) were tested to assess their physiological behavior under different water regimes (100%, 70%, 50% and 30% FC) and their responsiveness to foliar application of 8mM silicon. The data clearly indicated the hypersensitivity of cv. Sohag 3 to water deficit as compared to cv. Seds 12 where dramatic reduction of shoots, roots, spikes and grains dry weight. Cv. Sohag 3 reduced total proteins and great accumulated of soluble proteins at the expense of insoluble one as well as reduction of soluble, insoluble and total carbohydrates. On the other hand, cv. Seds 12 maintained the insoluble proteins and enhanced of the soluble one as well as its ability to boost soluble, insoluble and total carbohydrates. In addition, water stress stimulated high oxidative damage in terms of overproduction of hydrogen peroxide, lipid peroxidation, electrolyte leakage and lipoxygenase enzyme of cv. Sohag 3 compared to oxidative damage limiting capacity of cv. Seds 12. Silicon application greatly augmented the water scarcity and exhibited better growth under harsh conditions due to the up- regulation of C and N- metabolism of the studied cultivars and reduced membrane damage as indicated by reducing H2O2, MDA, electrolyte leakage and lipoxygenase. All of these criteria answered on the stimulatory effect of silicon on yield attributes (spikes and grains) of the
Authors and Affiliations
Mona Fathi Abd elmowla Dawood
Keywords
Related Articles
- EP ID EP654511
- DOI 10.24297/jab.v8i1.5311
- Views 177
- Downloads 0
Contribution to the knowledge of the Rubiaceae of the Lesser Antilles: Martiniques case.
The Rubiaceae represent one of the worlds five largest families of flowering plants. This family is diversified in terms of number of species, genera, physiognomic types or chemical spectra. Within their flora the Lesser...
Influence of engineered nanoparticles on growth parameters and photosynthetic pigments of Triticum durum L. under salt stress
Salinity stress is a major limitation to global crop production. Wheat is one of the world’s crops has salt sensitive characteristics than other crops. Meanwhile, rapid advancement of nanotechnology is introducing more a...
EMBRYONIC DEVELOPMENT OF MOLGULA MANHATTENSIS (DE KAY, 1843) WITH EMPHASIS ON THE EFFECT OF SOME BIOACTIVE INDUCERS AND HSP 90 ON LARVAL METAMORPHOSIS
Specimens of Molgula manhattensis (De Kay, 1843) were collected during March to June (2013) along the northern estruarine harbour of the Arabian Gulf - Saudi Arabia. Sperm and eggs were sucked from gonoducts and placed s...
Changes in Protein Expression in Response to Heat Shock and Heat Stress in Three Tomato (Solanum lycopersicum) Landraces from Sudan
This work was carried out to study types of proteins induced and degraded in response to heat shock treatment and at flowering stage after growth under heat stress, in three landraces of tomato ( Solanum lycopersicum) fr...
Deletion of IL-4 Receptor Alpha on B Lymphocytes renders BALB/c Mice balance Th differentiation to Leishmania major Infection during the early stage of Infection
B-lymphocytes are considered to play a minimal role in host defense against Leishmania major. In BALB/c mice, susceptibility to infection with the intracellular parasite Leishmania major is driven largely by the developm...