广西植物2025，Vol.45Issue(5)：846-854,9.DOI:10.11931/guihaia.gxzw202401030
阿蒂莫耶番荔枝心皮愈合的研究
Carpel fusion of Annona×atemoya(Annonaceae)
摘要
Abstract
Annona×atemoya(Annonaceae)is an important tropical economic fruit.Carpel fusion is an important stage in its fruit development process.In order to study the organogenesis characteristics of the carpel fusion of Annona×atemoya.This article used young fruits at different developmental stages after pollination as materials,and observed by paraffin sections and light microscopy.The results were as follows:(1)The carpel fusion of young fruit happened about one month after pollination.Carpels at the top of the receptacle fused earlier than carpels at the bottom.The adjacent carpels firstly fused near the base of carpels,gradually extended towards the style,and ended at the stigma.(2)During the carpel fusion process,the differentiation of carpel epidermal cells manifested in two forms:firstly,at the style end,carpel epidermal cells differentiated into parenchymatous cells,with pairwise fusion of carpels leaving no distinct boundary traces;secondly,at the ovary end,adjacent carpel epidermal cells dedifferentiated and divided into four tightly arranged layers of special parenchymatous cells,forming a segment of boundary traces at the original epidermal site.This is a new type and incomplete postgenital carpel fusion.The findings this study enrich the types of carpel fusion as well as our understanding of the early developmental characteristics of Annona×atemoya,and provide a reference for revealing the process and characteristics of carpel fusion in genus Annona.关键词
番荔枝科/阿蒂莫耶/心皮愈合/表皮细胞/薄壁细胞Key words
Annonaceae/Annona×atemoya/carpel fusion/epidermal cell/parenchymatous cell分类
生物学引用本文复制引用
甘阳英,平晶耀,宋松泉,曹阳..阿蒂莫耶番荔枝心皮愈合的研究[J].广西植物,2025,45(5):846-854,9.基金项目
国家自然科学基金青年基金(31800184) （31800184）
广东省农科院"金颖之星"人才项目(R2023PY-JX021). （R2023PY-JX021）
