Changes in form of elongation factor 1 during germination of wheat seeds.
Two forms of EF-1 are present in the high-speed supernatant fraction from wheat embryo homogenate. In embryos from dry seeds EF-1H 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-1H 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-1H to EF-1L, increasing EF-1H from 15% to 40% of the total.
D000040:Abscisic Acid / Q000494:pharmacology; D000225:Adenine / Q000031:analogs & derivatives / Q000494:pharmacology; D001593:Benzyl Compounds; D055598:Chemical Phenomena; D002621:Chemistry; D005875:Gibberellins / Q000494:pharmacology; D007701:Kinetin; D020648:Peptide Elongation Factor 1; D010445:Peptide Elongation Factors / Q000378:metabolism*; D010940:Plant Proteins / Q000096:biosynthesis*; D011687:Purines; D012639:Seeds / Q000378:metabolism*; D014908:Triticum / Q000378:metabolism*; D014867:Water
D001593:Benzyl Compounds; D005875:Gibberellins; D020648:Peptide Elongation Factor 1; D010445:Peptide Elongation Factors; D010940:Plant Proteins; D011687:Purines; D014867:Water; D000040:Abscisic Acid; C007842:gibberellic acid; D000225:Adenine; C480551:benzylaminopurine; D007701:Kinetin