scholarly journals Stimulation of growth and some biochemical parameters by magnetic field in wheat (Triticum aestivum L.) tissue cultures

2011 ◽  
Vol 10 (53) ◽  
pp. 10957-10963 ◽  
Author(s):  
Alikamanoglu Sema ◽  
Sen Ayse
Keyword(s):  
Magnetic Field ◽  
Triticum Aestivum ◽  
Biochemical Parameters ◽  
Triticum Aestivum L ◽  
Tissue Cultures ◽  
Stimulation Of

Induction of Phenolic Compounds in Wheat (Triticum aestivum L.) Tissue Cultures by Streptomycin

2007 ◽  
Vol 62 (1-2) ◽  
pp. 50-54 ◽  
Author(s):  
Atiat M. A. Hassan
Keyword(s):  
Triticum Aestivum ◽  
Phenolic Compounds ◽  
Experimental Period ◽  
Triticum Aestivum L ◽  
Stationary Growth Phase ◽  
Total Phenolic ◽  
Ms Medium ◽  
Tissue Cultures ◽  
Mature Embryos ◽  
Pal Activity

The tissue cultures of wheat (Triticum aestivum L.) were induced from the mature embryos (explants) of the dry grains and grown on MS medium containing kinetin (0.1 mg/l) and 2,4 D (1.0 mg/l). The cultures were incubated for two weeks at (25 ± 2) °C under a light/dark regime (16 h light daily). The formed calli were subcultured at the beginning of the stationary growth phase (15 days) with fresh MS medium containing 0, 5, 10, 25, 50, 100, 150 mg/l streptomycin elicitor and maintained for two weeks for three subcultures. A significant increase in phenylalanine ammonia lyase (PAL) activity coincided with the increase of the total phenolic compounds after elicitation with streptomycin. Maximum induction was recorded during the first two weeks, then gradually declined during the rest of the experimental period, but the values attained were still markedly higher than that of the control. The endogenous cinnamic acid content was also increased significantly with the increase in PAL activity making about 2-18% of the total phenolic acids. The growth and accumulation of phenolic compounds were inversely related. However, accumulation of phenolic compounds became limited for growth of wheat tissue culture especially during the long term cultivation.

Cold acclimation inhibits CO2-dependent stimulation of photosynthesis in spring wheat and spring rye

Botany ◽  
2012 ◽  
Vol 90 (6) ◽  
pp. 433-444 ◽  
Author(s):  
Keshav Dahal ◽  
Khalil Kane ◽  
Fathey Sarhan ◽  
Bernard Grodzinski ◽  
Norman P.A. Hüner
Keyword(s):  
Triticum Aestivum ◽  
Cold Acclimation ◽  
Temperature Sensitivity ◽  
Spring Wheat ◽  
Secale Cereale ◽  
Triticum Aestivum L ◽  
Short Term ◽  
Short Term Exposure ◽  
Secale Cereale L ◽  
Stimulation Of

We assessed the effects of short-term elevated CO2 on the light-saturated rates of photosynthesis (Asat) of spring (‘SR4A’, ‘Katepwa’) and winter (‘Musketeer’, ‘Norstar’) wheat ( Triticum aestivum L.) and rye ( Secale cereale L.) cultivars grown at ambient CO2 (380 µmol C·mol–1) at either 20/16 °C (nonacclimated, NA) or 5/5 °C (cold acclimated, CA). In spring wheat–rye, cold acclimation decreased CO2-stimulation of Asat by 45%–60% relative to NA controls following a short-term (80 h) shift of plants from ambient to elevated CO2 (700 µmol C·mol–1). In contrast, in winter wheat–rye, cold acclimation enhanced CO2-stimulation of Asat by 15%–35% relative to NA controls upon a shift to elevated CO2. The stimulation observed for CA spring cultivars was about 60% less than that of CA winter cultivars. We conclude that a short-term exposure of spring cultivars to elevated CO2 cannot compensate for the cold acclimation-induced inhibition of Asat. Cold acclimation of spring cultivars appeared to exacerbate Rubisco CO2 substrate limitations present under ambient CO2. Furthermore, CA spring cultivars were unable to adjust their short-term temperature sensitivity of Asat under elevated CO2 compared with the winter cultivars.

scholarly journals The responsiveness of Triticum aestivum L. variety for inoculation by cells of endophytic strains Bacillus subtilis.

2019 ◽  
pp. 3-6
Author(s):  
Z. M. Kuramshina ◽  
R. M. Khairullin ◽  
Yu. V. Smirnova
Keyword(s):  
Triticum Aestivum ◽  
Bacillus Subtilis ◽  
Root Growth ◽  
Growth Stimulation ◽  
Triticum Aestivum L ◽  
Wheat Varieties ◽  
Strong Growth ◽  
Wheat Cultivation ◽  
Petri Dishes ◽  
Stimulation Of

In this study, we tested the effect of two strains of bacteria B. subtilis 26D and 11ВМ on three varieties of wheat Triticum aestivum L.: Omskaya 35, Kazakhstanskaya 10 (spring), Volzhskaya qualitative (winter).The peculiarity of the plants response to endophytic inoculation depended on the strain of the microorganism, the concentration of cells in the preparation, and the variety of wheat during the experiment in Petri dishes. Both strains showed a strong growth-stimulating effect when seed was inoculated with suspensions of bacteria with a concentration of 106 cells/ml. There was no effect when seed cells were inoculated with bacteria at a concentration of 109 cells / ml. Plants varieties Omskaya 35 were most responsive to inoculation with endophytes. The variety was well responsive to the inoculation of bacteria cells at different concentrations. The variety Volzhskaya quality had the least growth stimulation. Plants of this variety responded well when grown in soil, unlike experiments in Petri dishes. The variety Kazakhstanskaya 10 was less responsive when growing plants in Petri dishes. There was no difference between the size of the shoots of inoculated and non-inoculated plants of the variety Kazakh 10, only stimulation of root growth was observed. It was concluded that there is a pronounced responsiveness of wheat varieties to the effect of endophytic strains of bacteria B. subtilis 26D the basis of biofungicide (Fitosporin-M) and this must be considered when using biofungicide for wheat cultivation.

scholarly journals Stimulation of lignin synthesis via the PAL-associated metabolic pathway in wheat plants (Tríticum aestívum L.)

2021 ◽  
Vol 291 ◽  
pp. 02017
Author(s):  
Pavel Feduraev ◽  
Artem Pungin ◽  
Anastasiia Riabova ◽  
Elina Tokupova ◽  
Liubov Skrypnik
Keyword(s):  
Triticum Aestivum ◽  
Metabolic Pathway ◽  
Cell Walls ◽  
Phenylalanine Ammonia Lyase ◽  
Lignin Content ◽  
Triticum Aestivum L ◽  
Soft Wheat ◽  
Nutrient Media ◽  
Key Enzyme ◽  
Stimulation Of

The paper demonstrates an approach to increasing the accumulation of lignin in plants of soft wheat (Tríticum aestívum L.) at the early stages of ontogenesis, by means of substrate stimulation of the key enzyme of the synthesis of phenylpropanoids – phenylalanine-ammonia-lyase. It was shown that plants grown on nutrient media containing phenialanine or tyrosine at a concentration of 500 μM significantly increased the lignin content of cell walls compared to controls.

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