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Pollen sensitivity to ultraviolet-B (UV-B) suggests floral structure evolution in alpine plants
Zhang, Chan1,2,3; Yang, Yong-Ping1,2,4; Duan, Yuan-Wen1,2,4
2014-03-31
发表期刊SCIENTIFIC REPORTS
ISSN2045-2322
卷号4页码:4520
摘要Various biotic and abiotic factors are known to exert selection pressures on floral traits, but the influence of ultraviolet-B (UV-B) light on the evolution of flower structure remains relatively unexplored. We have examined the effectiveness of flower structure in blocking radiation and the effects of UV-B on pollen viability in 42 species of alpine plants in the Hengduan Mountains, China. Floral forms were categorized as either protecting or exposing pollen grains to UV-B. The floral materials of plants with exposed and protected pollen grains were able to block UV-B at similar levels. Exposure to UV-B radiation in vitro resulted in a significantly greater loss of viability in pollen from plant species with protective floral structures. The pronounced sensitivity of protected pollen to UV-B radiation was associated with the type of flower structure. These findings demonstrate that UV-B plays an important role in the evolution of protective floral forms in alpine plants.
关键词Multifunctional Bracts Tube Growth In-vitro Radiation Germination Rain Ranunculaceae Pollination Taxa
资助信息973 programs [2010CB951704]; NSFC [31270434]
学科领域Multidisciplinary Sciences
DOI10.1038/srep04520
收录类别SCI
语种英语
WOS研究方向Science & Technology - Other Topics
WOS类目Multidisciplinary Sciences
WOS记录号WOS:000333516200007
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被引频次:9[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.kib.ac.cn/handle/151853/18071
专题中国科学院青藏高原研究所昆明部
作者单位1.Chinese Acad Sci, Kunming Inst Bot, Key Lab Plant Biodivers & Biogeog East Asia, Kunming 650204, Peoples R China
2.Chinese Acad Sci, Inst Tibetan Plateau Res Kunming, Kunming Inst Bot, Kunming 650204, Peoples R China
3.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
4.Chinese Acad Sci, Kunming Inst Bot, Plant Germplasm & Genom Ctr, Germplasm Bank Wild Species, Kunming 650204, Peoples R China
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GB/T 7714
Zhang, Chan,Yang, Yong-Ping,Duan, Yuan-Wen. Pollen sensitivity to ultraviolet-B (UV-B) suggests floral structure evolution in alpine plants[J]. SCIENTIFIC REPORTS,2014,4:4520.
APA Zhang, Chan,Yang, Yong-Ping,&Duan, Yuan-Wen.(2014).Pollen sensitivity to ultraviolet-B (UV-B) suggests floral structure evolution in alpine plants.SCIENTIFIC REPORTS,4,4520.
MLA Zhang, Chan,et al."Pollen sensitivity to ultraviolet-B (UV-B) suggests floral structure evolution in alpine plants".SCIENTIFIC REPORTS 4(2014):4520.
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