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题名: Floral Mass per Area and Water Maintenance Traits Are Correlated with Floral Longevity in Paphiopedilum (Orchidaceae)
作者: Zhang, Feng-Ping1, 2, 3; Yang, Ying-Jie1, 2, 4; Yang, Qiu-Yun1, 2; Zhang, Wei1, 2, 4; Brodribb, Tim J.5; Hao, Guang-You6; Hu, Hong1, 2; Zhang, Shi-Bao1, 2
刊名: FRONTIERS IN PLANT SCIENCE
出版日期: 2017-04-07
卷号: 8
关键词: floral longevity ; floral dry mass per unit area ; floral economic traits ; floral water maintenance ; Paphiopedilum
DOI: 10.3389/fpls.2017.00501
文章类型: Article
英文摘要: Floral longevity (FL) determines the balance between pollination success and flower maintenance. While a longer floral duration enhances the ability of plants to attract pollinators, it can be detrimental if it negatively affects overall plant fitness. Longerlived leaves display a positive correlation with their dry mass per unit area, which influences leaf construction costs and physiological functions. However, little is known about the association among FL and floral dry mass per unit area (FMA) and water maintenance traits. We investigated whether increased FL might incur similar costs. Our assessment of 11 species of Paphiopedilum (slipper orchids) considered the impact of FMA and flower water- maintenance characteristics on FL. We found a positive relationship between FL and FMA. Floral longevity showed significant correlations with osmotic potential at the turgor loss and bulk modulus of elasticity but not with FA. Neither the size nor the mass per area was correlated between leaves and flowers, indicating that flower and leaf economic traits evolved independently. Therefore, our findings demonstrate a clear relationship between FL and the capacity to maintain water status in the flower. These economic constraints also indicate that extending the flower life span can have a high physiological cost in Paphiopedilum.
类目[WOS]: Plant Sciences
研究领域[WOS]: Plant Sciences
关键词[WOS]: REPRODUCTIVE ASSURANCE ; HYDRAULIC CONDUCTANCE ; LIFE-SPAN ; LEAF ; FLOWERS ; LEAVES ; TEMPERATURE ; SIZE ; DRY ; POLEMONIACEAE
收录类别: SCI
项目资助者: National Natural Science Foundation of China(31670415 ; Science and Technology Research Program of Kunming Institute of Botany - The Chinese Academy of Sciences(KIB2016006) ; National Key Project of the Ministry of Science and Technology of China(2015BAD10B03) ; Natural Science Foundation of Yunnan Province(2013FA044) ; Yunnan Key Laboratory of Flower Breeding(FKL-201601) ; 31370362)
语种: 英语
WOS记录号: WOS:000398627100001
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.kib.ac.cn/handle/151853/51049
Appears in Collections:资源植物与生物技术所级重点实验室_期刊论文

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作者单位: 1.Chinese Acad Sci, Key Lab Econ Plants & Biotechnol, Kunming Inst Bot, Kunming, Peoples R China
2.Chinese Acad Sci, Yunnan Key Lab Res & Dev Wild Plant Resources, Kunming Inst Bot, Kunming, Peoples R China
3.Yunnan Key Lab Flower Breeding, Kunming, Peoples R China
4.Univ Chinese Acad Sci, Beijing, Peoples R China
5.Univ Tasmania, Dept Plant Sci, Hobart, Tas, Australia
6.Chinese Acad Sci, Inst Appl Ecol, Shenyang, Peoples R China
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