scholarly journals Effects of a Short-Term Shift to Low Temperature and of Long-Term Cold Hardening on Photosynthesis and Ribulose-1,5-Bisphosphate Carboxylase/Oxygenase and Sucrose Phosphate Synthase Activity in Leaves of Winter Rye (Secale cereale L.)

1994 ◽  
Vol 106 (3) ◽  
pp. 983-990 ◽  
Author(s):  
V. M. Hurry ◽  
G. Malmberg ◽  
P. Gardestrom ◽  
G. Oquist
Keyword(s):  
Low Temperature ◽  
Secale Cereale ◽  
Sucrose Phosphate Synthase ◽  
Cold Hardening ◽  
Winter Rye ◽  
Short Term ◽  
Bisphosphate Carboxylase ◽  
Secale Cereale L ◽  
Sucrose Phosphate

Cold-hardening results in increased activity of enzymes involved in carbon metabolism in leaves of winter rye (Secale cereale L.)

Planta ◽  
1995 ◽  
Vol 195 (4) ◽  
Author(s):  
VaughanM. Hurry ◽  
Olav Keerberg ◽  
Tiit P�rnik ◽  
Per Gardestr�m ◽  
Gunnar �quist
Keyword(s):  
Secale Cereale ◽  
Carbon Metabolism ◽  
Cold Hardening ◽  
Winter Rye ◽  
Secale Cereale L ◽  
Activity Of Enzymes ◽  
Increased Activity

scholarly journals The effect of glutathione and mannitol on androgenesis in anther and isolated microspore cultures of rye (Secale cereale L.)

2020 ◽  
Vol 140 (3) ◽  
pp. 577-592 ◽  
Author(s):  
Kamil Zieliński ◽  
Monika Krzewska ◽  
Iwona Żur ◽  
Katarzyna Juzoń ◽  
Przemysław Kopeć ◽  
...  
Keyword(s):  
Low Temperature ◽  
Secale Cereale ◽  
Reduced Glutathione ◽  
Winter Rye ◽  
High Effectiveness ◽  
Regenerated Plants ◽  
Embryogenic Suspension ◽  
Secale Cereale L ◽  
Embryogenic Suspension Culture ◽  
Breeding Programmes

AbstractAndrogenic responsiveness in anther (AC) and isolated microspore cultures (MC) was analysed using 15 lines of Polish winter rye (Secale cereale L.). The effect of low temperature (LT) alone or in combination with osmotic stress induced by mannitol treatment (MAN) and/or with reduced glutathione (GSH) on the effectiveness of the process was studied. Interestingly, each treatment had a different effect on microspore (mcs) vitality and capability to divide symmetrically. The first criterion for successful embryogenesis was to exceed the threshold number of at least 25% dividing microspores, which determined ‘embryogenic suspension culture’. In some configurations a spectacular effect was achieved, especially in lines highly recalcitrant to androgenesis induction. Relatively high effectiveness of androgenesis induction (up to 4.58 AS per 105 mcs per spike in MC and 21.29 AS per spike in AC) showed that the developed protocol with GSH and/or MAN tiller pre-treatments overcomes the genotypic barrier for androgenesis initiation in rye. Moreover, relatively high, spontaneous genome diploidization (55%) of regenerated plants demonstrated that the described protocols could be effectively integrated into conventional rye breeding programmes.

scholarly journals COMPARATIVE ANALYSIS OF LOW TEMPERATURE RESISTANCE FOR NANOCARBON AND OTHER BITUMENS

2020 ◽  
Vol 5 (443) ◽  
pp. 89-96
Author(s):  
Zhurinov M.Zh., ◽  
◽  
Teltayev B.B., ◽  
Kalybay A.A., ◽  
Rossi C.O., ◽  
...  
Keyword(s):  
Comparative Analysis ◽  
Low Temperature ◽  
Polyphosphoric Acid ◽  
Crumb Rubber ◽  
Petrochemical Plant ◽  
Short Term ◽  
Temperature Resistance ◽  
Coal Rock ◽  
Low Temperature Resistance

A comparative analysis of the low temperature resistance for a nanocarbon bitumen and other 30 neat and modified bitumens has been performed in the work. The stiffness at the temperatures of -24°С, -30°С and -36°С under technical system Superpave has been accepted as an indicator of low temperature resistance of the bitumens. The stiffness of the bitumens has been determined on a bending beam rheometer (standard ASTM D 6648-08). Before testing the bitumens have been subjected to the double artificial aging: short-term aging – under standard AASHTO Т 240-13 and long-term aging – under standard ASTM D 6521-08. The nanocarbon bitumen has been prepared in the laboratory of the Kazakhstan Highway Research Institute (KazdorNII) with the use of a road bitumen of the grade BND 70/100 produced by the Pavlodar petrochemical plant (PNHZ) and a nanocarbon powder (2% by weight) manufactured from a coal rock of the deposit “Saryadyr” “Corporation “ON-Olzha” LLP, Akmola region, Kazakhstan). The nanocarbon powder (150-200 nm) has been manufactured by three-stage size reduction of the coal rock: I – a mechanical dispergator (up to 2-3 mm), II – an aerodynamic mill (up to 20 mcm), III – a reactor with a rotating electromagnetic field. The neat bitumens of the grades BND 50/70, BND 70/100, BND 100/130 have been produced by the plants of Kazakhstan and Russia; they satisfy the requirements of the standard ST RK 1373-2013. The modified bitumens have been prepared in the laboratory of KazdorNII with the use of the neat bitumens, 7 types of the polymers, crumb rubber and polyphosphoric acid and they satisfy the requirements of the standard ST RK 2534-2014. It has been determined that the nanocarbon bitumen is one of the most resistant at the low temperatures: -24°С, -30°С and -36°С.

Cell Wall Deposits in Winter Rye Secale cereale L. 'Puma' during Cold Acclimation

1982 ◽  
Vol 143 (4) ◽  
pp. 486-490 ◽  
Author(s):  
Marilyn Griffith ◽  
Gregory N. Brown
Keyword(s):  
Cell Wall ◽  
Cold Acclimation ◽  
Secale Cereale ◽  
Winter Rye ◽  
Secale Cereale L
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