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Beta-amylase isozymes in spring common wheat and their role in the aggregation of grain protein

Akhtariyeva M.K., Kozelets Ya.O., Filippova Yu.M., Netsvetaev V.P.

 




SUMMARY. Beta-amylase isoenzymes polymorphism of spring com-mon wheat among varieties cultivated in the conditions of the Northern Trans-Urals was studied. Among the 41 accessions identified four variants of the enzyme. A, C and A* isozymes differed most frequently, the share of which, respectively, was 64,6 ± 7,3; 22,0 ± 3,7 and 12,2 ± 3,7 %. During 2011–2013 the aggregating ability of grain proteins were studied using -S-S-bonds between groups of varieties carrying variants of beta-amylase A and C. It was established that the presence of isoenzyme C promotes greater aggregation of grain polypeptides in comparison with beta-amylase A carriers, but did not affect the formation of yield. Differences in beta-amylase did not affect the rate of fall a number associated with amylase activity.

Key words: beta-amylase isoenzymes, spring common wheat, disulfide bonds, fall a number, yield

Tsitologiya i Genetika 2019, vol. 53, no. 4, pp. 34-40

E-mail: marina­che mail.ru, ya.o.kozelets mail.ru; j­1506 yandex.ru, v.netsvetaev yandex.ru

Akhtariyeva M.K., Kozelets Ya.O., Filippova Yu.M., Netsvetaev V.P. Beta-amylase isozymes in spring common wheat and their role in the aggregation of grain protein, Tsitol Genet., 2019, vol. 53, no. 4, pp. 34-40.

In "Cytology and Genetics":
M. K. Akhtariyeva, Ya. O. Kozelets, Yu. M. Filippova, V. P. Netsvetaev Beta-Amylase Isozymes in Spring Common Wheat and Their Role in the Aggregation of Grain Proteins, Cytol Genet., 2019, vol. 53, no. 4, pp. 294–299
DOI: 10.3103/S0095452719040029


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