Is seasonal flowering time of Paphiopedilum species caused by differences in initial time of floral bud differentiation?

doi:10.1093/aobpla/plab053

KIB OpenIR

	Is seasonal flowering time of Paphiopedilum species caused by differences in initial time of floral bud differentiation?
	Feng,Jing-Qiu ; Xia,Qian ; Zhang,Feng-Ping ; Wang,Ji-Hua ; Zhang,Shi-Bao
	2021
发表期刊	AOB PLANTS
ISSN	2041-2851
卷号	13 期号:5 页码:plab053
摘要	Members of the genus Paphiopedilum are world-famous for their large, colourful flowers, unique floral morphology and long floral lifespan. Most Paphiopedilum species bloom in spring or autumn. The control of flowering time is of great significance to the commercial production of floral crops, because it affects the sales and prices of flowers. However, the mechanism that regulates when Paphiopedilum species bloom is unclear. In the present study, floral bud initiation and development of P. micranthum (spring-flowering species with one flower per stalk), P. dianthum (autumn-flowering species with multiple flowers per stalk) and P. henryanum (autumn-flowering species with one flower per stalk) were investigated by morphological and anatomical methods. We divided Paphiopedilum floral bud differentiation into six phases: the initiation of differentiation, inflorescence primordium differentiation, flower primordium differentiation, sepal primordium differentiation, petal primordium differentiation and column primordium differentiation. We found that the timing of floral bud differentiation for the three species was synchronized when experiencing the same environment, while the period from initiation to flowering largely differed. In addition, initiation of floral bud differentiation in P. dianthum was earlier at a warmer environment. The difference in flowering time of three species was mainly caused by the duration of floral bud development, rather than the initiation time. The findings were of great significance for the cultivation and flowering regulation of Paphiopedilum species.
关键词	Floral bud anatomy floral bud differentiation floral bud initiation flowering regulation Paphiopedilum seasonal flowering TEMPERATURE TREATMENT ORCHID PHALAENOPSIS CYPRIPEDIUM REPRODUCTION ARABIDOPSIS GROWTH
DOI	10.1093/aobpla/plab053
WOS记录号	WOS:000741340900001
引用统计
文献类型	期刊论文
条目标识符	http://ir.kib.ac.cn/handle/151853/73059
专题	中国科学院昆明植物研究所
作者单位	1.Chinese Acad Sci, Kunming Inst Bot, Yunnan Key Lab Wild Plant Resources, Key Lab Econ Plants & Biotechnol, Kunming 650201, Yunnan, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Yunnan Univ, Sch Life Sci, Kunming 650500, Yunnan, Peoples R China 4.Yunnan Univ Chinese Med, Yunnan Key Lab Dai & Yi Med, China Coll Tradit Chinese Med, Kunming, Yunnan, Peoples R China 5.Yunnan Acad Agr Sci, Flower Res Inst, Kunming 650205, Yunnan, Peoples R China
推荐引用方式 GB/T 7714	Feng,Jing-Qiu,Xia,Qian,Zhang,Feng-Ping,et al. Is seasonal flowering time of Paphiopedilum species caused by differences in initial time of floral bud differentiation?[J]. AOB PLANTS,2021,13(5):plab053.
APA	Feng,Jing-Qiu,Xia,Qian,Zhang,Feng-Ping,Wang,Ji-Hua,&Zhang,Shi-Bao.(2021).Is seasonal flowering time of Paphiopedilum species caused by differences in initial time of floral bud differentiation?.AOB PLANTS,13(5),plab053.
MLA	Feng,Jing-Qiu,et al."Is seasonal flowering time of Paphiopedilum species caused by differences in initial time of floral bud differentiation?".AOB PLANTS 13.5(2021):plab053.