scholarly journals Allelopathic Effects of Wheat Plant Roots (Intisar) Treated with Gibberellin under Different Age on Germination ,Seedling Growth of two Wheat Cultivars (Abu-Graib 3, Mexipack) Triticum aestivum L.

2005 ◽  
Vol 16 (14) ◽  
pp. 279-289
Author(s):  
Mohamed S.Faysel ◽  
Kasim M.Al-Hamdani ◽  
Hassen M.Kathim
Biomics ◽  
2020 ◽  
Vol 12 (3) ◽  
pp. 329-336
Author(s):  
A.R. Lubyanova ◽  
F.M. Shakirova ◽  
M.V. Bezrukova

We studied the immunohistochemical localization of abscisic acid (ABA), wheat germ agglutinin (WGA) and dehydrins in the roots of wheat seedlings (Triticum aestivum L.) during 24-epibrassinolide-pretreatment (EB-pretreatment) and PEG-induced dehydration. It was found coimmunolocalization of ABA, WGA and dehydrins in the cells of central cylinder of basal part untreated and EB-pretreated roots of wheat seedlings under normal conditions and under osmotic stress. Such mutual localization ABA and protective proteins, WGA and dehydrins, indicates the possible effect of their distribution in the tissues of EB-pretreated wheat roots during dehydration on the apoplastic barrier functioning, which apparently contributes to decrease the water loss under dehydration. Perhaps, the significant localization of ABA and wheat lectin in the metaxylem region enhances EB-induced transport of ABA and WGA from roots to shoots under stress. It can be assumed that brassinosteroids can serve as intermediates in the realization of the protective effect of WGA and wheat dehydrins during water deficit.


Genetika ◽  
2014 ◽  
Vol 46 (1) ◽  
pp. 27-32
Author(s):  
Desimir Knezevic ◽  
Sonja Maric ◽  
Vlado Kovacevic ◽  
Nevena Djukic ◽  
Srdjan Atanasijevic

In diallel crosses (without reciprocals) of four genetically divergent wheat cultivars (Yugoslavia, Osijecanka, Zitnica, and NS Rana 2) the variability and inheritance of nitrogen content in wheat plant were investigated. The mode of inheritance, gene effect, heritability in parent cultivars and F2 hybrids were studied. The different mode of inheritance: partial dominance, intermediate and overdominance for analyzed trait was established. Among parent cultivars, the highest nitrogen contents had Novosadska Rana 2 (3.52%). The combination Zitnica/NS Rana 2 in F2 grain generation was the best for nitrogen content.


2014 ◽  
Vol 8 (2) ◽  
pp. 133-139 ◽  
Author(s):  
Ashagre Habtamu ◽  
A. Hamza Ibrahim ◽  
Fita Urgecha ◽  
Nedesa Worku

Author(s):  
Shailja Dubey ◽  
Renu Bist ◽  
Shrilekha Misra

Objective: Ethyl methano sulphonate (Ems), a chemical mutagen is widely used to induce a large number of functional variation in wheat plant. The objective of present study was to determine the activity of enzymatic antioxidants and Lipid peroxidation (LPO) after EMS exposure in a wheat plant in M1, M2 and M3 generation of Triticum aestivum L. var. HD 2894.Methods: Presoaked seeds were treated with EMS for 6 hour with different concentration like 0%, 0.1%, 0.2%, 0.3%, 0.4% and 0.5%. Some biochemical parameter such as Catalase (CAT), ascorbate peroxidase (APX), glutathione reductase (GR) and Lipid peroxidation (LPO) were studied.Results: Our result showed that EMS affects enzymatic and oxidative parameters in all generation. CAT, GR, APX and LPO activity was found to be reduced in m1 generation as compared to control. A simultaneous elevation was recorded in the concentration of ems compared to control treated plants after given the exposure of ems in m2 and m3 generation. Data analysis of antioxidant and LPO during the m2 generation showed that the effect of the mutagen on the activity of antioxidant and LPO did not cease in the m1 but continued to affect the m2 generation. Analysis of m3 generation showed stability in the activity of antioxidant and LPO from m2 to m3 generation.Conclusion: Lethal dose of ems was determined by the activity of antioxidant under laboratory condition. In this experiment, quantitative determination was applied as a regular procedure. The data analysis showed the activity of antioxidant, LPO and doses of ems concentration in m1, m2 and m3 generation. Variability observed on the basis of mean and standard deviation. On the whole, differences between concentrations and treatment time of Ems significantly affect the activity of antioxidant and LPO in all generation. 


Author(s):  
Duangjai Nachiangmai ◽  
Bernie Dell ◽  
Longbin Huang ◽  
Richard W. Bell ◽  
Benjavan Rerkasem

Plants ◽  
2021 ◽  
Vol 10 (12) ◽  
pp. 2557
Author(s):  
Dilara Maslennikova ◽  
Oksana Lastochkina

We evaluated the effect of endobacteria Bacillus subtilis (strain 10–4) as a co-inoculant for promoting plant growth and redox metabolism in two contrasting genotypes of Triticum aestivum L. (wheat): Ekada70 (drought tolerant (DT)) and Salavat Yulaev (drought susceptible (DS)) in early stages of adaptation to drought (12% PEG–6000). Results revealed that drought reduced growth and dramatically augmented oxidative stress markers, i.e., hydrogen peroxide (H2O2) and lipid peroxidation (MDA). Furthermore, the depletion of ascorbate (AsA) and glutathione (GSH), accompanied by a significant activation of ascorbate peroxidase (APX) and glutathione reductase (GR), in both stressed wheat cultivars (which was more pronounced in DS genotype) was found. B. subtilis had a protective effect on growth and antioxidant status, wherein the stabilization of AsA and GSH levels was revealed. This was accompanied by a decrease of drought-caused APX and GR activation in DS plants, while in DT plants additional antioxidant accumulation and GR activation were observed. H2O2 and MDA were considerably reduced in both drought-stressed wheat genotypes because of the application of B. subtilis. Thus, the findings suggest the key roles in B. subtilis-mediated drought tolerance in DS cv. Salavat Yulaev and DT cv. Ekada70 played are AsA and GSH, respectively; which, in both cases, resulted in reduced cell oxidative damage and improved growth in seedlings under drought.


Sign in / Sign up

Export Citation Format

Share Document