Towill L R, Ikuma H
Department of Botany, University of Michigan, Ann Arbor, Michigan 48104.
Plant Physiol. 1975 Oct;56(4):468-73. doi: 10.1104/pp.56.4.468.
The changes in levels of metabolites during photoinduced germination of Onoclea sensibilis L. spores are described. Proteins and lipids, which constitute 25 and 20%, respectively, of the unimbibed spores on a dry weight basis, are hydrolyzed at the time of differentiation and elongation of the germling cells and may be utilized for these processes. Sucrose degradation, starch synthesis, and active respiration occur during dark imbibition, but these processes are accelerated by red or far red irradiation. Endogenous sucrose is the probable source of the carbon skeleton for starch synthesis.
描述了感光蹄盖蕨(Onoclea sensibilis L.)孢子光诱导萌发过程中代谢物水平的变化。以干重计,蛋白质和脂质分别占未吸胀孢子的25%和20%,在幼苗细胞分化和伸长时被水解,并可能用于这些过程。黑暗吸胀期间发生蔗糖降解、淀粉合成和活跃呼吸,但这些过程会因红光或远红光照射而加速。内源性蔗糖可能是淀粉合成碳骨架的来源。