Division of Plant Industry, Commonwealth Scientific and Industrial Research Organization, Canberra, Australia.
Plant Physiol. 1973 Jan;51(1):37-42. doi: 10.1104/pp.51.1.37.
The cotyledons and embryo axes of seeds of Phaseolus vulgaris L. cv. Pinto contained 16% of the total calcium in the seed. The remaining 84% was in the testas. There was no evidence that calcium in testas was used in seedling growth or that calcium was leached from seedlings during growth.An external supply of calcium decreased the incidence of hypocotyl collapse (a severe symptom of calcium deficiency), increased the calcium content of all organs, and increased the dry weight of all organs except cotyledons. Light treatments decreased the incidence of hypocotyl collapse and increased the calcium content and dry weight of all organs except cotyledons and hypocotyls.White light was more effective than far red light for decreasing incidence of hypocotyl collapse. Usually the effects of white light and far red light on the calcium content and dry weight of organs were similar, and usually those of white light were quantitatively greater than those of far red light. It is suggested that the light-promoted effects were associated with photomorphogenesis and that differences in data obtained with white light and far red light could be associated with photosynthesis.
菜豆（Phaseolus vulgaris L. cv. Pinto）种子的子叶和胚轴中含有种子总钙的 16%，其余 84%存在于种皮中。没有证据表明种皮中的钙用于幼苗生长，也没有证据表明钙在生长过程中从幼苗中浸出。外源钙供应降低了下胚轴崩溃（一种严重的缺钙症状）的发生率，增加了所有器官的钙含量，并增加了除子叶以外的所有器官的干重。光照处理降低了下胚轴崩溃的发生率，并增加了除子叶和下胚轴以外的所有器官的钙含量和干重。白光比远红光更有效地降低下胚轴崩溃的发生率。通常，白光和远红光对器官钙含量和干重的影响相似，通常白光的效果大于远红光。这表明光促进的作用与光形态发生有关，并且用白光和远红光获得的数据差异可能与光合作用有关。
