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Incorporation of cytokinins into DNA of wheat seedlings

Journal Article · · Biochemistry (Engl. Transl.); (United States)
OSTI ID:5851573
After incubation of wheat seedlings with (/sup 3/H)benzylaminopurine or (8-/sup 3/H)zeathin appreciable radioactivity was found in the purine bases of DNA, mainly in adenine. Moreover, as a result of acid hydrolysis labeled cytokinins were isolated from labeled highly purified preparations of the total DNA of wheat seedlings. Their radioactivity constituted 5-10% of the radioactivity of the adenine bases in the DNA. After mild acid hydrolysis (/sup 3/H)benzylaminopurine and (/sup 3/H)zeathin were found in the deoxyribonucleoside fraction obtained from cytokinin-labeled DNA. Thus, different cytokinins (N/sup 6/-substituted adenine derivatives) are covalently incorporated into the newly synthesized DNA of plants.
Research Organization:
M. V. Lomonosov Moscow State Univ., USSR
OSTI ID:
5851573
Journal Information:
Biochemistry (Engl. Transl.); (United States), Journal Name: Biochemistry (Engl. Transl.); (United States) Vol. 51:2; ISSN BIORA
Country of Publication:
United States
Language:
English