Department of Horticulture, Washington State University, Pullman, Washington 99164.
Plant Physiol. 1978 Jun;61(6):883-5. doi: 10.1104/pp.61.6.883.
Analysis of Ca and other inorganic ions in the pericarp of rin, a nonripening mutant, and normal tomato (Lycopersicon esculentum Mill) fruits revealed significant differences in their accumulations at advanced stages of fruit development. During early stages of fruit development, soluble Ca was higher in Rutgers and there were no detectable changes in the accumulation patterns of the other inorganic ions. In the mutant rin, bound Ca continued to increase with age and it was twice as high as compared to earlier stages. In the normal tomato, bound Ca decreased about 3-fold at later stages of development. Mg and Mn also showed some changes similar to Ca. K continued to increase with age and the mutant rin had lower levels than Rutgers throughout development. Other ions such as P, Zn, Cu, and Co were similar in the mutant and normal fruits. These results are interpreted as indicating that high levels of bound divalent cations in the mutant rin may be associated with an altered membrane and cell wall and play a role in fruit ripening.
对 rin（一种非成熟突变体）和正常番茄（Lycopersicon esculentum Mill）果皮中的 Ca 和其他无机离子进行分析，发现在果实发育的后期，它们的积累存在显著差异。在果实发育的早期阶段，Rutgers 中的可溶性 Ca 较高，其他无机离子的积累模式没有检测到变化。在突变体 rin 中，结合态 Ca 随着年龄的增长而持续增加，与早期阶段相比，增加了两倍。在正常番茄中，结合态 Ca 在发育后期减少了约 3 倍。Mg 和 Mn 也表现出与 Ca 相似的一些变化。K 随着年龄的增长而持续增加，突变体 rin 在整个发育过程中的水平均低于 Rutgers。其他离子，如 P、Zn、Cu 和 Co，在突变体和正常果实中相似。这些结果表明，突变体 rin 中高水平的结合态二价阳离子可能与改变的膜和细胞壁有关，并在果实成熟过程中发挥作用。
