期刊论文

Cytomorphological Observation on Development of Pistil and Stamen of Male and Hermaphrodite Floral Buds of Diospyros kaki‘Longyan Yeshi 1'

Yuan, D.

中文

园艺学报

0513-353X

2019

46

10

1897-1906

10.16420/j.issn.0513-353x.2018-0888

CAFYBB2017ZA004-3:中央级公益性科研院所基本科研业务费专项 CAFYBB2017ZA005:中央级公益性科研院所基本科研业务费专项 31500559:国家自然科学基金

本校为第一机构

在龙岩野柿子代群体中发现一株雄全同株个体‘龙岩野柿1号’,全株3朵合生聚伞形花序的中间1朵为两性花的概率大于80％,两侧分别为完全雄花.以‘龙岩野柿1号’的雄花和两性花为材料,采用常规石蜡切片法对其雌、雄蕊发育进行观察.结果 表明:其两性花雌、雄蕊原基均发育正常,雄花雌蕊原基发育中无子房功能性组织产生;两性花发育早于雄花.雄花和两性花的花药4室,花药壁发育为双子叶型,由表皮、药室内壁、中层和腺质绒毡层组成;四分体为四面体型和对称型,减数分裂为同时型;成熟花粉为2-细胞型,3条萌发沟;单核靠边期存在少量畸形花粉粒和空花粉粒;不同药室及同一药室的小孢子发育存在不同步现象.两性花...

An andromonoecy Diospyros kaki‘Longyan Yeshi 1’was found in the population of Longyan Yeshi. Its floral buds were three-flower cyme. The probability that the middle one was hermaphrodite floral buds was over 80%，and the two on both sides were unisexual male floral buds. It is a new excellent material for studying the regulatory mechanism of sex differentiation of Diospyros species. The developmental differences of male and hermaphrodite floral buds of‘Longyan Yeshi 1’was observed with paraffin section. The results showed that：the stamen a...