Involvement of cell proliferation and cell enlargement in increasing the fruit size of Malus species
Involvement of cell proliferation and cell enlargement in increasing the fruit size of Malus species
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DOI：
10.1016/j.scienta.2005.02.006
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发表时间：
2005-07-29
影响因子：
4.3
通讯作者：
Satoh, T
中科院分区：
文献类型：
--
作者：
Harada, T;Kurahashi, W;Satoh, T
对五个苹果品种（两个海棠和三个驯化苹果）从开花后不久到成熟期间果肉中的细胞数量和细胞大小进行了分析。 M. floribunda 的果实大小是苹果属中最小的之一，在整个果实个体发育过程中表现出细胞增殖的缺失。此外，在其他物种的成熟阶段之前，细胞增大的速度几乎是一致的，但从盛花后（DAFB）约45天开始减慢，导致细胞大小约为其他品种的一半。 M. coronaria 的果实中等大小，其细胞数量大约是 M. Domestica cv. 的一半。 “富士”，由于增殖速度较慢。简历。在所调查的品种中，家蝇的“Sekaiichi”具有最大的果实，并且细胞数量增加得更快。这些结果表明，更大的细胞分裂能力和增强的细胞增大程度的组合与苹果果实大小的增加有关。 (c) 2005 Elsevier B.V. 保留所有权利。
Cell number and cell size in the fruit flesh of five Malus cultivars (two crabapples and three domesticated apples) were analyzed from soon after blossom until maturity. M. floribunda, whose fruit size is one of the smallest among Malus, exhibited absence of cell proliferation throughout fruit ontogeny. Furthermore, the rate of cell enlargement, which was almost uniform until the mature stage in other species, slowed down from about 45 days after full blossom (DAFB), resulting in a cell size approximately half that of the other cultivars. The fruit of M. coronaria, which is of medium size, possessed approximately half the cell number of M. domestica cv. 'Fuji', due to a slower proliferation rate. The cv. 'Sekaiichi' of M. domestica had the largest fruit among the cultivars investigated, and showed a faster increase in cell number. These results indicate that a combination of greater cell division capacity and an enhanced degree of cell enlargement are involved in the increase of Malus fruit size. (c) 2005 Elsevier B.V. All rights reserved.