[Effect of Cu2+ and Ni2+ on the intensity of RNA synthesis in corn seedlings].
It has been found that Cu and Ni at contents of 17 mg/kg and 64 mg/kg dry weight respectively in leaves tissues have no visible effect on morphological and physiological characteristics of plants and increase [3H]uridine incorporation in various types of RNA. Under these conditions synthesise of nuclear RNA has been found 1.8-2.4 more intense, transport RNA -2.0-2.8 intense and ribosomal RNA-1.2-2.8 intense in comparison with control. Analysing our data it is possible to suggest that the activation of the RNA synthesis under the heavy metals influence may be one of the protective mechanism connected with the plant cell adaptation to the stressful conditions.
Iazlovyts'ka
L S
LS
Fed'kovich Chernivtsi State University, Ukraine.
Rohozyns'kyĭ
M S
MS
Kostyshyn
S S
SS
Volkov
R A
RA
D003300:Copper / Q000494:pharmacology*; D009532:Nickel / Q000494:pharmacology*; D018515:Plant Leaves / Q000187:drug effects* / Q000378:metabolism; D018749:RNA, Plant / Q000096:biosynthesis*; D003313:Zea mays / Q000187:drug effects* / Q000378:metabolism
D018749:RNA, Plant; D003300:Copper; D009532:Nickel