Naslov
Dynamics of proteins and amino acids biosynthesis in developing soybean seed

Autori
Batinić-Haberle, Ines ; Nierle, Werner ; Šebečić, Blaženka ; Momirović-Čuljat, Jelena

Izvornik
Eurosoya (0760-0224) 3 (1985); 5-11

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
amino acids; biosynthesis; glycine max; storage proteins; seed development

Sažetak
The content of proteins and amino acids was followed up during the seed development of two soybean cultivars (Glycine max (L) Merr.), Maksimirka and Srećka, in defined climatic conditions of growing in the course of two years. It was found that the greatest part of amino acids of mature seed (mg/seed) was synthesized during the 3rd and 4th seed development stages (about 37-65 days after flowering), the same period in which there was also the highest increase in the dry matter content (mg/seed). The proportion of proteins in the dry matter of the seed (%) remained almoust unchanged throughout the whole development period. The cumulation of dry matter, proteins and amino acids was quicker in the year with lower temperature and higher soil moisture (1978), although their content (mg/seed) in mature seed was lower than in the year with higher temperature and less precipitation (1977). The proportion of most amino acids in proteins during the period of seed development varied to a smaller or larger extent, showing a slight tendency towards increase in mature seed by comparison with the non-mature seed. A considerable rise was recorded only in the contents of cysteine and glutamic acid, whereas there was slight drop in the contents of histidine, alanine, aspartic acid and valine. The contents of all amino acids, expressed in mg/seed, showed a steady increase throught the whole seed development period of both cultivars in 1977, but there was a relative stagnation of their cumulation in the last seed development stage in 1978. The effect of climatic factors on the intensity of the biosynthesis of amino acids was observed.

Izvorni jezik
Engleski

Znanstvena područja
Biotehnologija

POVEZANOST RADA