Effect of cold hardening on the phenolic complex of winter wheat leaves

2006 ◽  
Vol 53 (4) ◽  
pp. 495-500 ◽  
Author(s):  
N. A. Olenichenko ◽  
V. I. Ossipov ◽  
N. V. Zagoskina
Keyword(s):  
Winter Wheat ◽  
Cold Hardening ◽  
Wheat Leaves

THE TEMPERATURE COEFFICIENT OF INVERTASE FROM THE LEAVES OF COLD-HARDENED AND COLD-SUSCEPTIBLE WHEAT PLANTS

1967 ◽  
Vol 45 (8) ◽  
pp. 1347-1357 ◽  
Author(s):  
D. W. A. Roberts
Keyword(s):  
Winter Wheat ◽  
Temperature Coefficient ◽  
Ammonium Sulfate ◽  
Cold Hardening ◽  
Energy Of Activation ◽  
Ammonium Sulfate Precipitation ◽  
Wheat Leaves

The energy of activation of invertase in crude juice and in preparations purified by ammonium sulfate precipitation from winter wheat, Kharkov 22 MC, leaves grown at 6 °C, is lower than that in preparations from similar leaves grown at 20 °C. When Rescue wheat leaves are used the same value for the energy of activation of invertase is obtained whether plants are grown at 6 °C or 20 °C. In this respect Thatcher wheat appears to be intermediate between Kharkov 22 MC and Rescue. Some implications of these observations in relation to cold hardening are discussed.

Rate of Photosynthesis and Transpiration of Winter Wheat Leaves and Ears Under Water Deficit Conditions

2008 ◽  
Vol 23 (2) ◽  
pp. 326-335
Author(s):  
Jacek Olszewski ◽  
Agnieszka Pszczółkowska ◽  
Tomasz Kulik ◽  
Gabriel Fordoński ◽  
Krystyna Płodzień ◽  
...  
Keyword(s):  
Winter Wheat ◽  
Water Deficit ◽  
Rate Of Photosynthesis ◽  
Wheat Leaves

Characterization of Photosynthesis in Cold Hardening Winter Wheat 1

Crop Science ◽  
1970 ◽  
Vol 10 (5) ◽  
pp. 535-538 ◽  
Author(s):  
A. L. Barta ◽  
H. F. Hodges
Keyword(s):  
Winter Wheat ◽  
Cold Hardening

CO2Exchange as Related to Sugar Accumulation and Invertase Activity during Winter Wheat Cold Hardening

2004 ◽  
Vol 398 (1-6) ◽  
pp. 379-381 ◽  
Author(s):  
S. V. Klimov ◽  
I. M. Dubinina ◽  
E. A. Burakhanova ◽  
N. V. Astakhova ◽  
V. N. Popov ◽  
...  
Keyword(s):  
Winter Wheat ◽  
Invertase Activity ◽  
Cold Hardening ◽  
Sugar Accumulation

Cell-wall lectins during winter wheat cold hardening

2006 ◽  
Vol 53 (6) ◽  
pp. 746-750 ◽  
Author(s):  
L. D. Garaeva ◽  
S. A. Pozdeeva ◽  
O. A. Timofeeva ◽  
L. P. Khokhlova
Keyword(s):  
Cell Wall ◽  
Winter Wheat ◽  
Cold Hardening

Non-Invasive Monitoring of the Light-Induced Cyclic Photosynthetic Electron Flow during Cold Hardening in Wheat Leaves

2006 ◽  
Vol 61 (9-10) ◽  
pp. 734-740 ◽  
Author(s):  
Simona Apostol ◽  
Gabriella Szalai ◽  
László Sujbert ◽  
Losanka P. Popova ◽  
Tibor Janda
Keyword(s):  
Winter Wheat ◽  
Electron Flow ◽  
Wheat Variety ◽  
Fluorescence Induction ◽  
Chlorophyll Fluorescence Induction ◽  
Light Conditions ◽  
Non Invasive ◽  
Photosynthetic Electron Flow ◽  
Temperature Hardening ◽  
Wheat Leaves

AbstractThe effect of irradiance during low temperature hardening was studied in a winter wheat variety. Ten-day-old winter wheat plants were cold-hardened at 5 °C for 11 days under light (250 μmol m-2 s-1) or dark (20 μmol m-2 s-1) conditions. The effectiveness of hardening was significantly lower in the dark, in spite of a slight decrease in the Fv/Fm chlorophyll fluorescence induction parameter, indicating the occurrence of photoinhibition during the hardening period in the light. Hardening in the light caused a downshift in the far-red induced AG (afterglow) thermoluminescence band. The faster dark re-reduction of P700+, monitored by 820-nm absorbance, could also be observed in these plants. These results suggest that the induction of cyclic photosynthetic electron flow may also contribute to the advantage of frost hardening under light conditions in wheat plants.

Changes in content of steroid regulators during cold hardening of winter wheat - Steroid physiological/biochemical activity and impact on frost tolerance

2019 ◽  
Vol 139 ◽  
pp. 215-228 ◽  
Author(s):  
Anna Janeczko ◽  
Ewa Pociecha ◽  
Michał Dziurka ◽  
Barbara Jurczyk ◽  
Marta Libik-Konieczny ◽  
...  
Keyword(s):  
Winter Wheat ◽  
Frost Tolerance ◽  
Cold Hardening ◽  
Biochemical Activity

scholarly journals Influence of mercury on chlorophyll content in winter wheat and mercury bioaccumulation

2010 ◽  
Vol 56 (No. 3) ◽  
pp. 139-143 ◽  
Author(s):  
D. Liu ◽  
X. Wang ◽  
Z. Chen ◽  
H. Xu ◽  
Y. Wang
Keyword(s):  
Winter Wheat ◽  
Chlorophyll Content ◽  
Inductively Coupled Plasma ◽  
Dry Weight ◽  
High Concentration ◽  
Field Mass ◽  
Wheat Growth ◽  
Inductively Coupled ◽  
Mercury Bioaccumulation ◽  
Wheat Leaves

Mercury (Hg) is one of the major pollutants in soils because of the annual import of toxic Hg into the agricultural lands. The aims of the present studies are to investigate the effect of Hg on chlorophyll content in winter wheat var. jinan No. 17. Moreover, calcium (Ca) levels and bioaccumulation of Hg in wheat leaves were studied with the technique of inductively coupled plasma sector field mass spectrometer (ICP-SF-MS). The study conducted a range of Hg concentrations from 0~500 mg Hg/kg in the dry weight soil. The soil was artificially contaminated with Hg as follows: 0, 100, 200, and 500 mg Hg/kg as HgCl<SUB>2</SUB>. At early stages of the wheat growth, both low and high concentration of Hg stimulates chlorophyll content, but inhibits chlorophyll content at later stages of the wheat growth. Furthermore, the concentrations of Ca and Hg in wheat leaves increased with the increasing concentration of Hg<SUP> </SUP>on the thirty-fourth day with the technique of ICP-SF-MS. The results indicate that Hg can accelerate the absorption of Ca in winter wheat and Hg stress may affect Ca levels in wheat leaves.

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