Open AccessChanges in form of elongation factor 1 during germination of wheat seeds
Author(s) -
SACCHI Gian Attilio,
ZOCCHI Graziano,
COCUCCI Sergio
Publication year - 1984
Publication title -
european journal of biochemistry
Language(s) - English
Resource type - Journals
eISSN - 1432-1033
pISSN - 0014-2956
DOI - 10.1111/j.1432-1033.1984.tb07967.x
Subject(s) - germination , elongation , abscisic acid , embryo , chemistry , block (permutation group theory) , horticulture , agronomy , biology , botany , microbiology and biotechnology , biochemistry , materials science , mathematics , geometry , gene , metallurgy , ultimate tensile strength
Two forms of EF‐1 are present in the high‐speed supernatant fraction from wheat embryo homogenate. In embryos from dry seeds EF‐1 H , is 55% of the total amount of EF‐1, while after 40 h of germination this form completely disappears. When germination and protein synthesis are accelerated by means of 6‐benzyladenine, the rate of conversion of EF‐1 H is increased. On the other hand, the block of germination and of the evolution of protein synthesis by abscisic acid, block this conversion; the block of water uptake, that stops germination and causes a decrease in protein synthesis, reverses the conversion of EF‐1 H to EF‐1 L , increasing EF‐1 H from 15% to 40% of the total.