| 摘要: |
| 观察了4个类型(PCNA，PVNA，PCA，PVA)103个柿品种果实中单宁细胞的形态特征。结果表明，单宁细胞与果肉细胞不论是否染色均有明显区别，即使在花期子房中单宁细胞与果肉细胞也能明显区分；单宁细胞随着果实发育而增大；不同品种不同果实及同一果实内，单宁细胞的外形、大小、表面特征表现得多种多样，成熟果实软化后的单宁细胞形状大致可分为6类，即细长形、长形、椭圆形、近圆形、多角形、尖头形；单宁细胞的表面形态也分为棘刺状、瘤状、凹陷状和自然平滑状。成熟果实中单宁细胞的大小是幼果期单宁细胞的3倍左右；在果实中，单宁细胞主要存在于中果皮，中果皮的单宁细胞无论何种形状，均较外果皮中形状相似的单宁细胞大2倍左右；除以单个分散形式存在外，在有些品种中单宁细胞以单宁细胞束或单宁细胞团的形式存在。完全甜柿与完全涩柿单宁细胞的发育动态不尽相同。 |
| 关键词: 柿 单宁细胞 发育动态 形态特征 |
| DOI： |
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| 基金项目:科技部基础性工作专项“柿种质资源收集整理与保存”(2001DEA10005) |
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| Study on morphological characteristics and development oftannin cells in persimmon (Diospyros kaki) |
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| Abstract: |
| The morphological characteristics of tannin cells in 4 persimmon varieties （PCNA,PVNA,PCA,PVA） were observed.They showed that the distinctive difference had appeared in ovary between tannin cells and flesh cells,the volume of tannin cell enlarged with fruit development;it appears various shapes,size and surface characters on tannin cells in different cultivars,different fruits or even in the same fruit.Shape of tannin cells can be classified into six groups in mature fruits of different varieties,i.e.threadlike,long,oblong,round,polygon and needle;Surface characters of tannin cell can be classified into thorn,tumour,concave,smooth.Size of tannin cells in mature fruits is about 3 times than that of in young fruits.Tannin cells exist mainly in mesocarp as individuals or bundle and gobbet in some cultivars.PCNA and PCA varieties are partly different in developments of tannin cells. |
| Key words: Diospyros kaki tannin cell development morphological characteristics |
