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Ultramorphometric study of the plastids in apical tuber cells of original and transgenic potato plants treated with ambiol

“…This work continues our research into mechanisms underlying the action of the antioxidant ambiol in original and defensin gene-transfected plants of potato cultivar Desire [9,15,16,18,19,24]. It was found earlier that ambiol was capable of regulating growth through either stimulation or inhibition of tuber germination of original and transgenic plants depending on the concentration [9].…”

“…Much recent attention has been given to synthetic growth regulators with an antioxidant action, which strongly affect plant growth processes and the development of anti-stress responses [5][6][7]. Hence our interest in the antioxidant ambiol (2-methyl-4-dimethylaminomethyl-5-hydroxybenzimidazole dihydrochloride), first synthesized at the Institute of Biochemical Physics, Russian Academy of Sciences, which displays anti-stress properties and acts as a growth regulator [5,6,[8][9][10][11][12][13]. It is demonstrated that ambiol influences formation, growth, and development processes in plants [4,5,[14][15][16][17], the content of phytohormones in plant tissues, and activities of H + -ATPase in the plasmalemmata of potato tuber cells [9,[18][19][20][21].…”

“…It is demonstrated that defensins are capable of protecting plants from phytopathogens [9,25], which is very important for increasing resistance and yield of potato plants.…”

“…Hence our interest in the antioxidant ambiol (2-methyl-4-dimethylaminomethyl-5-hydroxybenzimidazole dihydrochloride), first synthesized at the Institute of Biochemical Physics, Russian Academy of Sciences, which displays anti-stress properties and acts as a growth regulator [5,6,[8][9][10][11][12][13]. It is demonstrated that ambiol influences formation, growth, and development processes in plants [4,5,[14][15][16][17], the content of phytohormones in plant tissues, and activities of H + -ATPase in the plasmalemmata of potato tuber cells [9,[18][19][20][21]. Studies of the effects of individual antioxidants, particularly ionol [22,23] and ambiol [24], on the plant organism were initiated.…”

“…It was found earlier that ambiol was capable of regulating growth through either stimulation or inhibition of tuber germination of original and transgenic plants depending on the concentration [9]. It was interesting to evaluate the effect of ambiol at various concentrations on the plastids in apical tuber cells of original and transgenic potato plants, as the state of plastids in many respects reflected the functional state of apical meristematic cells under experimental conditions.…”