Staminodes influence pollen removal and deposition rates in nectar-rewarding self-incompatible Phanera yunnanensis (Caesalpinioideae)
Staminodes are sterile stamens that produce no pollen, exhibit diverse structures and perform various functions. Flowers of Phanera yunnanensis possess three fertile stamens with large anthers and long filaments, and seven staminodes with tiny anthers and short filaments. To investigate the adaptive...
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| Veröffentlicht in: | Journal of tropical ecology 2019-01, Vol.35 (1), p.34-42 |
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| creator | Wang, Menglin Huang, Shuyin Li, Manru McKey, Doyle Zhang, Ling |
| description | Staminodes are sterile stamens that produce no pollen, exhibit diverse structures and perform various functions. Flowers of Phanera yunnanensis possess three fertile stamens with large anthers and long filaments, and seven staminodes with tiny anthers and short filaments. To investigate the adaptive significance of staminodes in this species, we studied effects of staminode removal on pollen removal and deposition, flower visitation rate and fruit set in Xishuangbanna, south-western China. Four species of nectar-foraging pollinators visited flowers, mostly Amegilla zonata and Apis cerana (2.80 ± 0.15 and 1.76 ± 0.41 visits h−1 per flower, respectively). Staminode removal did not affect fruit set, but increased visitation by A. cerana by 2.6-fold, reduced visitation by A. zonata by 68% and increased the pollen removal rate for both pollinators (all effects were significant). Staminode removal significantly reduced pollen deposition rate for A. zonata, but not for A. cerana. These results suggest that the staminodes of P. yunnanensis filter which insects act as pollinators and affect pollen removal and deposition rates. By reducing pollen removal rates, staminodes may implement a pollen-dispensing schedule that spreads pollen dispersal from individual flowers over multiple pollinators. By altering pollen deposition rates, staminodes may influence reproductive fitness in other ways. |
| doi_str_mv | 10.1017/S0266467418000433 |
| format | Article |
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Flowers of Phanera yunnanensis possess three fertile stamens with large anthers and long filaments, and seven staminodes with tiny anthers and short filaments. To investigate the adaptive significance of staminodes in this species, we studied effects of staminode removal on pollen removal and deposition, flower visitation rate and fruit set in Xishuangbanna, south-western China. Four species of nectar-foraging pollinators visited flowers, mostly Amegilla zonata and Apis cerana (2.80 ± 0.15 and 1.76 ± 0.41 visits h−1 per flower, respectively). Staminode removal did not affect fruit set, but increased visitation by A. cerana by 2.6-fold, reduced visitation by A. zonata by 68% and increased the pollen removal rate for both pollinators (all effects were significant). Staminode removal significantly reduced pollen deposition rate for A. zonata, but not for A. cerana. These results suggest that the staminodes of P. yunnanensis filter which insects act as pollinators and affect pollen removal and deposition rates. By reducing pollen removal rates, staminodes may implement a pollen-dispensing schedule that spreads pollen dispersal from individual flowers over multiple pollinators. By altering pollen deposition rates, staminodes may influence reproductive fitness in other ways.</description><identifier>ISSN: 0266-4674</identifier><identifier>EISSN: 1469-7831</identifier><identifier>DOI: 10.1017/S0266467418000433</identifier><language>eng</language><publisher>Cambridge, UK: Cambridge University Press</publisher><subject>Adaptiveness ; Anthers ; Deposition ; Dispersal ; Females ; Filaments ; Fitness ; Flowers ; Flowers & plants ; Fruit set ; Fruits ; Insects ; Morphology ; Nectar ; Phenology ; Plant nectar ; Plant reproduction ; Pollen ; Pollinators ; Reproductive fitness ; Research Article ; Stamens ; Studies</subject><ispartof>Journal of tropical ecology, 2019-01, Vol.35 (1), p.34-42</ispartof><rights>Cambridge University Press 2019</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c404t-44b16f94785596dc3c0546866275b8965850994ce85c4760e78cd2684ccbf2863</citedby><cites>FETCH-LOGICAL-c404t-44b16f94785596dc3c0546866275b8965850994ce85c4760e78cd2684ccbf2863</cites><orcidid>0000-0003-2206-9503</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.cambridge.org/core/product/identifier/S0266467418000433/type/journal_article$$EHTML$$P50$$Gcambridge$$H</linktohtml><link.rule.ids>164,315,781,785,27929,27930,55633</link.rule.ids></links><search><creatorcontrib>Wang, Menglin</creatorcontrib><creatorcontrib>Huang, Shuyin</creatorcontrib><creatorcontrib>Li, Manru</creatorcontrib><creatorcontrib>McKey, Doyle</creatorcontrib><creatorcontrib>Zhang, Ling</creatorcontrib><title>Staminodes influence pollen removal and deposition rates in nectar-rewarding self-incompatible Phanera yunnanensis (Caesalpinioideae)</title><title>Journal of tropical ecology</title><addtitle>J. Trop. Ecol</addtitle><description>Staminodes are sterile stamens that produce no pollen, exhibit diverse structures and perform various functions. Flowers of Phanera yunnanensis possess three fertile stamens with large anthers and long filaments, and seven staminodes with tiny anthers and short filaments. To investigate the adaptive significance of staminodes in this species, we studied effects of staminode removal on pollen removal and deposition, flower visitation rate and fruit set in Xishuangbanna, south-western China. Four species of nectar-foraging pollinators visited flowers, mostly Amegilla zonata and Apis cerana (2.80 ± 0.15 and 1.76 ± 0.41 visits h−1 per flower, respectively). Staminode removal did not affect fruit set, but increased visitation by A. cerana by 2.6-fold, reduced visitation by A. zonata by 68% and increased the pollen removal rate for both pollinators (all effects were significant). Staminode removal significantly reduced pollen deposition rate for A. zonata, but not for A. cerana. These results suggest that the staminodes of P. yunnanensis filter which insects act as pollinators and affect pollen removal and deposition rates. By reducing pollen removal rates, staminodes may implement a pollen-dispensing schedule that spreads pollen dispersal from individual flowers over multiple pollinators. By altering pollen deposition rates, staminodes may influence reproductive fitness in other ways.</description><subject>Adaptiveness</subject><subject>Anthers</subject><subject>Deposition</subject><subject>Dispersal</subject><subject>Females</subject><subject>Filaments</subject><subject>Fitness</subject><subject>Flowers</subject><subject>Flowers & plants</subject><subject>Fruit set</subject><subject>Fruits</subject><subject>Insects</subject><subject>Morphology</subject><subject>Nectar</subject><subject>Phenology</subject><subject>Plant nectar</subject><subject>Plant reproduction</subject><subject>Pollen</subject><subject>Pollinators</subject><subject>Reproductive fitness</subject><subject>Research 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influence pollen removal and deposition rates in nectar-rewarding self-incompatible Phanera yunnanensis (Caesalpinioideae)</title><author>Wang, Menglin ; Huang, Shuyin ; Li, Manru ; McKey, Doyle ; Zhang, Ling</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c404t-44b16f94785596dc3c0546866275b8965850994ce85c4760e78cd2684ccbf2863</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2019</creationdate><topic>Adaptiveness</topic><topic>Anthers</topic><topic>Deposition</topic><topic>Dispersal</topic><topic>Females</topic><topic>Filaments</topic><topic>Fitness</topic><topic>Flowers</topic><topic>Flowers & plants</topic><topic>Fruit set</topic><topic>Fruits</topic><topic>Insects</topic><topic>Morphology</topic><topic>Nectar</topic><topic>Phenology</topic><topic>Plant nectar</topic><topic>Plant reproduction</topic><topic>Pollen</topic><topic>Pollinators</topic><topic>Reproductive fitness</topic><topic>Research 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removal and deposition rates in nectar-rewarding self-incompatible Phanera yunnanensis (Caesalpinioideae)</atitle><jtitle>Journal of tropical ecology</jtitle><addtitle>J. Trop. Ecol</addtitle><date>2019-01-01</date><risdate>2019</risdate><volume>35</volume><issue>1</issue><spage>34</spage><epage>42</epage><pages>34-42</pages><issn>0266-4674</issn><eissn>1469-7831</eissn><abstract>Staminodes are sterile stamens that produce no pollen, exhibit diverse structures and perform various functions. Flowers of Phanera yunnanensis possess three fertile stamens with large anthers and long filaments, and seven staminodes with tiny anthers and short filaments. To investigate the adaptive significance of staminodes in this species, we studied effects of staminode removal on pollen removal and deposition, flower visitation rate and fruit set in Xishuangbanna, south-western China. Four species of nectar-foraging pollinators visited flowers, mostly Amegilla zonata and Apis cerana (2.80 ± 0.15 and 1.76 ± 0.41 visits h−1 per flower, respectively). Staminode removal did not affect fruit set, but increased visitation by A. cerana by 2.6-fold, reduced visitation by A. zonata by 68% and increased the pollen removal rate for both pollinators (all effects were significant). Staminode removal significantly reduced pollen deposition rate for A. zonata, but not for A. cerana. These results suggest that the staminodes of P. yunnanensis filter which insects act as pollinators and affect pollen removal and deposition rates. By reducing pollen removal rates, staminodes may implement a pollen-dispensing schedule that spreads pollen dispersal from individual flowers over multiple pollinators. By altering pollen deposition rates, staminodes may influence reproductive fitness in other ways.</abstract><cop>Cambridge, UK</cop><pub>Cambridge University Press</pub><doi>10.1017/S0266467418000433</doi><tpages>9</tpages><orcidid>https://orcid.org/0000-0003-2206-9503</orcidid><oa>free_for_read</oa></addata></record> |
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| source | Cambridge University Press Journals Complete |
| subjects | Adaptiveness Anthers Deposition Dispersal Females Filaments Fitness Flowers Flowers & plants Fruit set Fruits Insects Morphology Nectar Phenology Plant nectar Plant reproduction Pollen Pollinators Reproductive fitness Research Article Stamens Studies |
| title | Staminodes influence pollen removal and deposition rates in nectar-rewarding self-incompatible Phanera yunnanensis (Caesalpinioideae) |
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