Reconstruction of cell wall polysaccharide is necessary for fruit development and ripening. Arabinose is the one of neutral sugars constituting wall polysaccharides and arabinose-containing polysaccharides play an important role in cellular attachment. In this study, expression patterns of α-l-arabinofuranosidase genes were examined in three tomato cultivars, the processing type ‘OSKAR’, fresh market type ‘Ailsa Craig’, and their hybrid ‘Shonan Pomoron Red’, to elucidate the function of α-l-arabinofuranosidase in fruit traits such as shape, growth, firmness, and juiciness. While there was no significant difference in fruit diameter among the cultivars, longitudinal elongation was observed in ‘OSKAR’ with increasing fruit weight. The hybrid ‘Shonan Pomoron Red’ showed intermediate longitudinal growth. Compared to ‘OSKAR’ at the red ripe stage, fruit flesh softened more in ‘Ailsa Craig’ and much water was released from the pericarp disk. The rate of water release in ‘Shonan Pomoron Red’ was intermediate. The α-l-arabinofuranosidase genes, SlArf/Xyl2, LeXYL1 and LeXYL2, were highly expressed in the young fruits and SlArf/Xyl1 and LeXYL1 were up-regulated when ripening initiated. However, their expression levels did not appear to cause the difference in fruit traits such as growth rate, fruit shape, and firmness among the cultivars. On the other hand, expression levels of SlArf/Xyl1, LeARF1 and LeXYL2 were consistent with the rate of water release from ripe fruit. Therefore, α-l-arabinofuranosidase could influence fruit flesh texture and juiciness in fresh market and processing cultivars.

细胞壁多糖的重建对于果实的发育和成熟是必要的。阿拉伯糖是构成壁多糖的中性糖之一，而含阿拉伯糖的多糖在细胞附着中起重要作用。在这项研究中，研究了三种番茄品种（加工类型“ OSKAR”，新鲜市场类型“ Ailsa Craig”及其杂种“ Shonan Pomoron Red”）中α- 1-阿拉伯呋喃糖苷酶基因的表达模式，以阐明α的功能。 -升-阿拉伯呋喃糖苷酶具有水果性状，例如形状，生长，坚硬和多汁。虽然各品种的果实直径没有显着差异，但随着果实重量的增加，在“ OSKAR”中观察到了纵向伸长。杂种“ Shonan Pomoron Red”表现出中等的纵向生长。与红色成熟阶段的“ OSKAR”相比，“ Ailsa Craig”的果肉更加柔软，果皮盘释放出大量水分。“ Shonan Pomoron Red”的水释放速率是中等的。α- 1-阿拉伯呋喃糖苷酶基因SlArf / Xyl2，LeXYL1和LeXYL2在幼果中高表达，而SlArf / Xyl1和LeXYL1开始成熟时被上调。然而，它们的表达水平似乎并未引起品种之间的果实性状如生长速率，果实形状和硬度的差异。另一方面，SlArf / Xyl1，LeARF1和LeXYL2的表达水平与成熟果实的水分释放速率一致。因此，α- 1-阿拉伯呋喃糖苷酶可以影响新鲜市场和加工品种的果肉质地和多汁性。