Activities of Hydrogen Peroxide-Scavenging Enzymes during Low-Temperature Hardening of Potato Plants Transformed by the desA Gene of Δ12-Acyl-Lipid Desaturase

2018 ◽  
Vol 65 (5) ◽  
pp. 667-673 ◽  
Author(s):  
N. V. Naraikina ◽  
M. S. Sin’kevich ◽  
A. N. Deryabin ◽  
T. I. Trunova
2011 ◽  
Vol 59 (2) ◽  
pp. 103-115 ◽  
Author(s):  
I. Demin ◽  
C. Shimshilashvili ◽  
N. Yur’eva ◽  
N. Naraykina ◽  
I. Goldenkova-Pavlova ◽  
...  

The responses of plant leaves to chilling were studied in potato (Solanum tuberosum L., cv. Desnitsa) and in its transformants with the native desA gene that encodes the acyl-lipid Δ12-desaturase from the cyanobacterium Synechocystis sp. PCC 6803 and with the hybrid desA gene fused to the reporter gene of thermostable lichenase (licBM3) from Clostridium thermocellum. Cold stress caused a rapid and significant increase in superoxide production and lipid peroxidation (the content of conjugated dienes and malonic dialdehyde) in wild-type plants. By contrast no significant increase was detected in transformed plants under cold stress conditions. This can be attributed to the fact that the overexpression of the acyl-lipid Δ12-desaturase in transformed potato plants promotes fatty acid polyunsaturation and presumably averts the accelerated generation of the superoxide anion, thus suppressing lipid peroxidation under low-temperature stress


2005 ◽  
Vol 30 (1) ◽  
pp. 73-77 ◽  
Author(s):  
A.N. Deryabin ◽  
I.M. Dubinina ◽  
E.A. Burakhanova ◽  
N.V. Astakhova ◽  
E.P. Sabel’nikova ◽  
...  

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