湖南农业大学学报（自然科学版）2026，Vol.52Issue(1)：67-73,130,8.DOI:10.13331/j.cnki.jhau.2026.01.008
不同类型柑橘果实汁胞差异及赤霉素在调控汁胞数量中的作用
Differences in juice sacs among different citrus fruit types and the role of gibberellin in regulating their number
摘要
Abstract
Four distinct types of citrus fruits,specifically'Juxiangzao'satsuma mandarin,'Yuanfeng'navel orange,'Qianyang Bingtangcheng'sweet orange and'Shatian Yu',were used as experimental materials to investigate the developmental patterns of juice sacs in different citrus types.This was achieved by comparing their microstructural characteristics and developmental processes.To explore the regulatory effects of gibberellin on juice sac development,'Qianyang Bingtangcheng'sweet orange was treated with gibberellin(GA3)during the cell division phase.The results showed that juice sac primordia differentiated at the flower bud stage and expanded significantly after anthesis.Afterward,juice sac number increased rapidly within one month post-anthesis.Specifically,the average number of juice sacs per segment of'Juxiangzao'satsuma mandarin was 219,with an average volume of 51.22 mm3,which was characterized by their large individual size and rapid development.In contrast,the average number of juice sacs per segment of'Shatian Yu'was approximately 415,with an average volume of 58.08 mm3.These sacs were the largest among the studied citrus types but exhibited a slower developmental rate.The average numbers of juice sacs per segment of'Yuanfeng'navel orange and'Qianyang Bingtangcheng'sweet orange were approximately 429 and 448,with average individual juice sac volumes of 35.53 mm3 and 7.24 mm3,respectively.Both cultivars exhibited a relatively long juice sac developmental period.When treated with GA3 during the cell division stage,the fruit volume exhibited a significant increase in size,with the number of juice sacs per segment increasing by 20.3%-22.3%,thereby promoting fruit enlargement.This promotion in fruit size was primarily attributed to an increase in juice sac number rather than their individual volume.In summary,the size of citrus fruit was closely associated with both the number and volume of juice sac,and the application of GA3 during the cell division phase promote juice sac differentiation and affected the final fruit size.关键词
柑橘/汁胞发育/赤霉素/果实大小Key words
citrus/development of juice sac/gibberellin/fruit size分类
农业科技引用本文复制引用
吴心怡,粟芳,向孝华,尹韬,刘鑫,李佳轩,陈岳文,杨俊枫,卢晓鹏..不同类型柑橘果实汁胞差异及赤霉素在调控汁胞数量中的作用[J].湖南农业大学学报（自然科学版）,2026,52(1):67-73,130,8.基金项目
国家自然科学基金项目(32172520,32472666) （32172520,32472666）
国家柑橘产业技术体系(CARS-26) （CARS-26）
