TY  - JOUR
AU  - Smirnov, A.E.
AU  - Kosyan, A.M.
AU  - Kosyk, O.I.
AU  - Taran, N.Yu.
T1  - Role of Root Exudates in Adaptative Reactions of Buckwheat Plants in Aluminium-acid Stress
JO  - Journal of Stress Physiology & Biochemistry
Y1  - 2014
VL  - 10
IS  - 1
SP  - 195
EP  - 202
UR  - http://www.jspb.ru/issues/2014/N1/JSPB_2014_1_195-202.pdf

KW  - aluminium  resistance
KW  - buckwheat
KW  - oxalic  acid
KW  - phenolic  compounds
KW  - phenylalanine ammonia-lyase




N1  - Owner: Алексей
N1  - Added to JabRef: 2014.02.01
N2  - Aliminium toxicity is major limiting factor of crop production in acidic soils. It is known that mechanisms of toxic effects of aluminium are differing in biochemical characters, research of aluminium toxicity complicated by variety of its chemical forms and migration in soil and water ability.  The  root  exudates  qualitative  composition  of  common  buckwheat  was  evaluated. Organic complexing agents – oxalic acid and phenolic compounds were revealed. The role of these  complexing  agents  in  the  buckwheat  aluminium  resistance  under  acidic  stress, participation in processes of external and internal detoxification was shown. Spectrophometric assay revealed an increase in root secretion of oxalic acid by 2.5 times and decrease in content of  phenolic  compounds  in  root  exudates  solution  by  3  times  upon  aluminium  (50  µM) treatment. In the meanwhile the same concentration of the metal had induced phenylalanine ammonia-lyase activity by 2 times
ER  -