Ultraviolet radiation changes plant color

Background Plant absorption of ultraviolet (UV) radiation can result in multiple deleterious effects to plant tissues. As a result, plants have evolved an array of strategies to protect themselves from UV radiation, particularly in the UV-B range (280–320 nm). A common plant response to UV exposure...
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Autor*in:	Valenta, Kim [verfasserIn] Dimac-Stohl, Kristin [verfasserIn] Baines, Frances [verfasserIn] Smith, Todd [verfasserIn] Piotrowski, Greg [verfasserIn] Hill, Norman [verfasserIn] Kuppler, Jonas [verfasserIn] Nevo, Omer [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2020

Schlagwörter:	Plant adaptive responses Plant reflectance Plant reproduction Ultraviolet radiation UV-B

Übergeordnetes Werk:	Enthalten in: BMC plant biology - London : BioMed Central, 2001, 20(2020), 1 vom: 03. Juni
Übergeordnetes Werk:	volume:20 ; year:2020 ; number:1 ; day:03 ; month:06

Links:	Volltext

DOI / URN:	10.1186/s12870-020-02471-8

Katalog-ID:	SPR039913562

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520			\|a Background Plant absorption of ultraviolet (UV) radiation can result in multiple deleterious effects to plant tissues. As a result, plants have evolved an array of strategies to protect themselves from UV radiation, particularly in the UV-B range (280–320 nm). A common plant response to UV exposure is investment in phenolic compounds that absorb damaging wavelengths of light. However, the inverse phenomenon – plant reflectance of UV to protect plant tissues – has not previously been explored. In a paired experiment, we expose half of our sample (N = 108) of insect-pollinated plants of the cultivar Zinnia Profusion Series to UV radiation, and protect the other half from all light < 400 nm for 42 days, and measure leaf and flower reflectance using spectroscopy. We compare UV-B reflectance in leaves and flowers at the beginning of the experiment or flowering, and after treatment. Results We find that plants protected from UV exposure downregulate UV-B reflectance, and that plants exposed to increased levels of UV show trends of increased UV-B reflectance. Conclusions Our results indicate that upregulation of UV-B reflecting pigments or structures may be a strategy to protect leaves against highly energetic UV-B radiation.
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allfields	10.1186/s12870-020-02471-8 doi (DE-627)SPR039913562 (SPR)s12870-020-02471-8-e DE-627 ger DE-627 rakwb eng 580 610 ASE 44.41 bkl Valenta, Kim verfasserin aut Ultraviolet radiation changes plant color 2020 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Background Plant absorption of ultraviolet (UV) radiation can result in multiple deleterious effects to plant tissues. As a result, plants have evolved an array of strategies to protect themselves from UV radiation, particularly in the UV-B range (280–320 nm). A common plant response to UV exposure is investment in phenolic compounds that absorb damaging wavelengths of light. However, the inverse phenomenon – plant reflectance of UV to protect plant tissues – has not previously been explored. In a paired experiment, we expose half of our sample (N = 108) of insect-pollinated plants of the cultivar Zinnia Profusion Series to UV radiation, and protect the other half from all light < 400 nm for 42 days, and measure leaf and flower reflectance using spectroscopy. We compare UV-B reflectance in leaves and flowers at the beginning of the experiment or flowering, and after treatment. Results We find that plants protected from UV exposure downregulate UV-B reflectance, and that plants exposed to increased levels of UV show trends of increased UV-B reflectance. Conclusions Our results indicate that upregulation of UV-B reflecting pigments or structures may be a strategy to protect leaves against highly energetic UV-B radiation. Plant adaptive responses (dpeaa)DE-He213 Plant reflectance (dpeaa)DE-He213 Plant reproduction (dpeaa)DE-He213 Ultraviolet radiation (dpeaa)DE-He213 UV-B (dpeaa)DE-He213 Dimac-Stohl, Kristin verfasserin aut Baines, Frances verfasserin aut Smith, Todd verfasserin aut Piotrowski, Greg verfasserin aut Hill, Norman verfasserin aut Kuppler, Jonas verfasserin aut Nevo, Omer verfasserin aut Enthalten in BMC plant biology London : BioMed Central, 2001 20(2020), 1 vom: 03. Juni (DE-627)335489060 (DE-600)2059868-3 1471-2229 nnns volume:20 year:2020 number:1 day:03 month:06 https://dx.doi.org/10.1186/s12870-020-02471-8 kostenfrei Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA SSG-OPC-PHA SSG-OPC-ASE GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2031 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2061 GBV_ILN_2111 GBV_ILN_2113 GBV_ILN_2190 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 44.41 ASE AR 20 2020 1 03 06
spelling	10.1186/s12870-020-02471-8 doi (DE-627)SPR039913562 (SPR)s12870-020-02471-8-e DE-627 ger DE-627 rakwb eng 580 610 ASE 44.41 bkl Valenta, Kim verfasserin aut Ultraviolet radiation changes plant color 2020 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Background Plant absorption of ultraviolet (UV) radiation can result in multiple deleterious effects to plant tissues. As a result, plants have evolved an array of strategies to protect themselves from UV radiation, particularly in the UV-B range (280–320 nm). A common plant response to UV exposure is investment in phenolic compounds that absorb damaging wavelengths of light. However, the inverse phenomenon – plant reflectance of UV to protect plant tissues – has not previously been explored. In a paired experiment, we expose half of our sample (N = 108) of insect-pollinated plants of the cultivar Zinnia Profusion Series to UV radiation, and protect the other half from all light < 400 nm for 42 days, and measure leaf and flower reflectance using spectroscopy. We compare UV-B reflectance in leaves and flowers at the beginning of the experiment or flowering, and after treatment. Results We find that plants protected from UV exposure downregulate UV-B reflectance, and that plants exposed to increased levels of UV show trends of increased UV-B reflectance. Conclusions Our results indicate that upregulation of UV-B reflecting pigments or structures may be a strategy to protect leaves against highly energetic UV-B radiation. Plant adaptive responses (dpeaa)DE-He213 Plant reflectance (dpeaa)DE-He213 Plant reproduction (dpeaa)DE-He213 Ultraviolet radiation (dpeaa)DE-He213 UV-B (dpeaa)DE-He213 Dimac-Stohl, Kristin verfasserin aut Baines, Frances verfasserin aut Smith, Todd verfasserin aut Piotrowski, Greg verfasserin aut Hill, Norman verfasserin aut Kuppler, Jonas verfasserin aut Nevo, Omer verfasserin aut Enthalten in BMC plant biology London : BioMed Central, 2001 20(2020), 1 vom: 03. Juni (DE-627)335489060 (DE-600)2059868-3 1471-2229 nnns volume:20 year:2020 number:1 day:03 month:06 https://dx.doi.org/10.1186/s12870-020-02471-8 kostenfrei Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA SSG-OPC-PHA SSG-OPC-ASE GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2031 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2061 GBV_ILN_2111 GBV_ILN_2113 GBV_ILN_2190 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 44.41 ASE AR 20 2020 1 03 06
allfields_unstemmed	10.1186/s12870-020-02471-8 doi (DE-627)SPR039913562 (SPR)s12870-020-02471-8-e DE-627 ger DE-627 rakwb eng 580 610 ASE 44.41 bkl Valenta, Kim verfasserin aut Ultraviolet radiation changes plant color 2020 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Background Plant absorption of ultraviolet (UV) radiation can result in multiple deleterious effects to plant tissues. As a result, plants have evolved an array of strategies to protect themselves from UV radiation, particularly in the UV-B range (280–320 nm). A common plant response to UV exposure is investment in phenolic compounds that absorb damaging wavelengths of light. However, the inverse phenomenon – plant reflectance of UV to protect plant tissues – has not previously been explored. In a paired experiment, we expose half of our sample (N = 108) of insect-pollinated plants of the cultivar Zinnia Profusion Series to UV radiation, and protect the other half from all light < 400 nm for 42 days, and measure leaf and flower reflectance using spectroscopy. We compare UV-B reflectance in leaves and flowers at the beginning of the experiment or flowering, and after treatment. Results We find that plants protected from UV exposure downregulate UV-B reflectance, and that plants exposed to increased levels of UV show trends of increased UV-B reflectance. Conclusions Our results indicate that upregulation of UV-B reflecting pigments or structures may be a strategy to protect leaves against highly energetic UV-B radiation. Plant adaptive responses (dpeaa)DE-He213 Plant reflectance (dpeaa)DE-He213 Plant reproduction (dpeaa)DE-He213 Ultraviolet radiation (dpeaa)DE-He213 UV-B (dpeaa)DE-He213 Dimac-Stohl, Kristin verfasserin aut Baines, Frances verfasserin aut Smith, Todd verfasserin aut Piotrowski, Greg verfasserin aut Hill, Norman verfasserin aut Kuppler, Jonas verfasserin aut Nevo, Omer verfasserin aut Enthalten in BMC plant biology London : BioMed Central, 2001 20(2020), 1 vom: 03. Juni (DE-627)335489060 (DE-600)2059868-3 1471-2229 nnns volume:20 year:2020 number:1 day:03 month:06 https://dx.doi.org/10.1186/s12870-020-02471-8 kostenfrei Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA SSG-OPC-PHA SSG-OPC-ASE GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2031 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2061 GBV_ILN_2111 GBV_ILN_2113 GBV_ILN_2190 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 44.41 ASE AR 20 2020 1 03 06
allfieldsGer	10.1186/s12870-020-02471-8 doi (DE-627)SPR039913562 (SPR)s12870-020-02471-8-e DE-627 ger DE-627 rakwb eng 580 610 ASE 44.41 bkl Valenta, Kim verfasserin aut Ultraviolet radiation changes plant color 2020 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Background Plant absorption of ultraviolet (UV) radiation can result in multiple deleterious effects to plant tissues. As a result, plants have evolved an array of strategies to protect themselves from UV radiation, particularly in the UV-B range (280–320 nm). A common plant response to UV exposure is investment in phenolic compounds that absorb damaging wavelengths of light. However, the inverse phenomenon – plant reflectance of UV to protect plant tissues – has not previously been explored. In a paired experiment, we expose half of our sample (N = 108) of insect-pollinated plants of the cultivar Zinnia Profusion Series to UV radiation, and protect the other half from all light < 400 nm for 42 days, and measure leaf and flower reflectance using spectroscopy. We compare UV-B reflectance in leaves and flowers at the beginning of the experiment or flowering, and after treatment. Results We find that plants protected from UV exposure downregulate UV-B reflectance, and that plants exposed to increased levels of UV show trends of increased UV-B reflectance. Conclusions Our results indicate that upregulation of UV-B reflecting pigments or structures may be a strategy to protect leaves against highly energetic UV-B radiation. Plant adaptive responses (dpeaa)DE-He213 Plant reflectance (dpeaa)DE-He213 Plant reproduction (dpeaa)DE-He213 Ultraviolet radiation (dpeaa)DE-He213 UV-B (dpeaa)DE-He213 Dimac-Stohl, Kristin verfasserin aut Baines, Frances verfasserin aut Smith, Todd verfasserin aut Piotrowski, Greg verfasserin aut Hill, Norman verfasserin aut Kuppler, Jonas verfasserin aut Nevo, Omer verfasserin aut Enthalten in BMC plant biology London : BioMed Central, 2001 20(2020), 1 vom: 03. Juni (DE-627)335489060 (DE-600)2059868-3 1471-2229 nnns volume:20 year:2020 number:1 day:03 month:06 https://dx.doi.org/10.1186/s12870-020-02471-8 kostenfrei Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA SSG-OPC-PHA SSG-OPC-ASE GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2031 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2061 GBV_ILN_2111 GBV_ILN_2113 GBV_ILN_2190 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 44.41 ASE AR 20 2020 1 03 06
allfieldsSound	10.1186/s12870-020-02471-8 doi (DE-627)SPR039913562 (SPR)s12870-020-02471-8-e DE-627 ger DE-627 rakwb eng 580 610 ASE 44.41 bkl Valenta, Kim verfasserin aut Ultraviolet radiation changes plant color 2020 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Background Plant absorption of ultraviolet (UV) radiation can result in multiple deleterious effects to plant tissues. As a result, plants have evolved an array of strategies to protect themselves from UV radiation, particularly in the UV-B range (280–320 nm). A common plant response to UV exposure is investment in phenolic compounds that absorb damaging wavelengths of light. However, the inverse phenomenon – plant reflectance of UV to protect plant tissues – has not previously been explored. In a paired experiment, we expose half of our sample (N = 108) of insect-pollinated plants of the cultivar Zinnia Profusion Series to UV radiation, and protect the other half from all light < 400 nm for 42 days, and measure leaf and flower reflectance using spectroscopy. We compare UV-B reflectance in leaves and flowers at the beginning of the experiment or flowering, and after treatment. Results We find that plants protected from UV exposure downregulate UV-B reflectance, and that plants exposed to increased levels of UV show trends of increased UV-B reflectance. Conclusions Our results indicate that upregulation of UV-B reflecting pigments or structures may be a strategy to protect leaves against highly energetic UV-B radiation. Plant adaptive responses (dpeaa)DE-He213 Plant reflectance (dpeaa)DE-He213 Plant reproduction (dpeaa)DE-He213 Ultraviolet radiation (dpeaa)DE-He213 UV-B (dpeaa)DE-He213 Dimac-Stohl, Kristin verfasserin aut Baines, Frances verfasserin aut Smith, Todd verfasserin aut Piotrowski, Greg verfasserin aut Hill, Norman verfasserin aut Kuppler, Jonas verfasserin aut Nevo, Omer verfasserin aut Enthalten in BMC plant biology London : BioMed Central, 2001 20(2020), 1 vom: 03. Juni (DE-627)335489060 (DE-600)2059868-3 1471-2229 nnns volume:20 year:2020 number:1 day:03 month:06 https://dx.doi.org/10.1186/s12870-020-02471-8 kostenfrei Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA SSG-OPC-PHA SSG-OPC-ASE GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2031 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2061 GBV_ILN_2111 GBV_ILN_2113 GBV_ILN_2190 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 44.41 ASE AR 20 2020 1 03 06
language	English
source	Enthalten in BMC plant biology 20(2020), 1 vom: 03. Juni volume:20 year:2020 number:1 day:03 month:06
sourceStr	Enthalten in BMC plant biology 20(2020), 1 vom: 03. Juni volume:20 year:2020 number:1 day:03 month:06
format_phy_str_mv	Article
institution	findex.gbv.de
topic_facet	Plant adaptive responses Plant reflectance Plant reproduction Ultraviolet radiation UV-B
dewey-raw	580
isfreeaccess_bool	true
container_title	BMC plant biology
authorswithroles_txt_mv	Valenta, Kim @@aut@@ Dimac-Stohl, Kristin @@aut@@ Baines, Frances @@aut@@ Smith, Todd @@aut@@ Piotrowski, Greg @@aut@@ Hill, Norman @@aut@@ Kuppler, Jonas @@aut@@ Nevo, Omer @@aut@@
publishDateDaySort_date	2020-06-03T00:00:00Z
hierarchy_top_id	335489060
dewey-sort	3580
id	SPR039913562
language_de	englisch
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author	Valenta, Kim
spellingShingle	Valenta, Kim ddc 580 bkl 44.41 misc Plant adaptive responses misc Plant reflectance misc Plant reproduction misc Ultraviolet radiation misc UV-B Ultraviolet radiation changes plant color
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title	Ultraviolet radiation changes plant color
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title_sort	ultraviolet radiation changes plant color
title_auth	Ultraviolet radiation changes plant color
abstract	Background Plant absorption of ultraviolet (UV) radiation can result in multiple deleterious effects to plant tissues. As a result, plants have evolved an array of strategies to protect themselves from UV radiation, particularly in the UV-B range (280–320 nm). A common plant response to UV exposure is investment in phenolic compounds that absorb damaging wavelengths of light. However, the inverse phenomenon – plant reflectance of UV to protect plant tissues – has not previously been explored. In a paired experiment, we expose half of our sample (N = 108) of insect-pollinated plants of the cultivar Zinnia Profusion Series to UV radiation, and protect the other half from all light < 400 nm for 42 days, and measure leaf and flower reflectance using spectroscopy. We compare UV-B reflectance in leaves and flowers at the beginning of the experiment or flowering, and after treatment. Results We find that plants protected from UV exposure downregulate UV-B reflectance, and that plants exposed to increased levels of UV show trends of increased UV-B reflectance. Conclusions Our results indicate that upregulation of UV-B reflecting pigments or structures may be a strategy to protect leaves against highly energetic UV-B radiation.
abstractGer	Background Plant absorption of ultraviolet (UV) radiation can result in multiple deleterious effects to plant tissues. As a result, plants have evolved an array of strategies to protect themselves from UV radiation, particularly in the UV-B range (280–320 nm). A common plant response to UV exposure is investment in phenolic compounds that absorb damaging wavelengths of light. However, the inverse phenomenon – plant reflectance of UV to protect plant tissues – has not previously been explored. In a paired experiment, we expose half of our sample (N = 108) of insect-pollinated plants of the cultivar Zinnia Profusion Series to UV radiation, and protect the other half from all light < 400 nm for 42 days, and measure leaf and flower reflectance using spectroscopy. We compare UV-B reflectance in leaves and flowers at the beginning of the experiment or flowering, and after treatment. Results We find that plants protected from UV exposure downregulate UV-B reflectance, and that plants exposed to increased levels of UV show trends of increased UV-B reflectance. Conclusions Our results indicate that upregulation of UV-B reflecting pigments or structures may be a strategy to protect leaves against highly energetic UV-B radiation.
abstract_unstemmed	Background Plant absorption of ultraviolet (UV) radiation can result in multiple deleterious effects to plant tissues. As a result, plants have evolved an array of strategies to protect themselves from UV radiation, particularly in the UV-B range (280–320 nm). A common plant response to UV exposure is investment in phenolic compounds that absorb damaging wavelengths of light. However, the inverse phenomenon – plant reflectance of UV to protect plant tissues – has not previously been explored. In a paired experiment, we expose half of our sample (N = 108) of insect-pollinated plants of the cultivar Zinnia Profusion Series to UV radiation, and protect the other half from all light < 400 nm for 42 days, and measure leaf and flower reflectance using spectroscopy. We compare UV-B reflectance in leaves and flowers at the beginning of the experiment or flowering, and after treatment. Results We find that plants protected from UV exposure downregulate UV-B reflectance, and that plants exposed to increased levels of UV show trends of increased UV-B reflectance. Conclusions Our results indicate that upregulation of UV-B reflecting pigments or structures may be a strategy to protect leaves against highly energetic UV-B radiation.
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title_short	Ultraviolet radiation changes plant color
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