Cryptochromes are the dominant photoreceptors mediating heliotropic responses of Arabidopsis inflorescences
Inflorescence movements in response to natural gradients of sunlight are frequently observed in the plant kingdom and are suggested to contribute to reproductive success. Although the physiological and molecular bases of light-mediated tropisms in vegetative organs have been thoroughly investigated,...
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| Format: | info:ar-repo/semantics/artículo |
| Language: | Inglés |
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Wiley
2022
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| Online Access: | http://hdl.handle.net/20.500.12123/12341 https://onlinelibrary.wiley.com/doi/abs/10.1111/pce.14139 https://doi.org/10.1111/pce.14139 |
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| author | Serrano, Alejandro Miguel Vanhaelewyn, Lucas Vandenbussche, Filip Boccalandro, Hernan Esteban Maldonado, Belén Van Der Straeten, Dominique Ballaré, Carlos Luis Arana, María Veronica |
| author_browse | Arana, María Veronica Ballaré, Carlos Luis Boccalandro, Hernan Esteban Maldonado, Belén Serrano, Alejandro Miguel Van Der Straeten, Dominique Vandenbussche, Filip Vanhaelewyn, Lucas |
| author_facet | Serrano, Alejandro Miguel Vanhaelewyn, Lucas Vandenbussche, Filip Boccalandro, Hernan Esteban Maldonado, Belén Van Der Straeten, Dominique Ballaré, Carlos Luis Arana, María Veronica |
| author_sort | Serrano, Alejandro Miguel |
| collection | INTA Digital |
| description | Inflorescence movements in response to natural gradients of sunlight are frequently observed in the plant kingdom and are suggested to contribute to reproductive success. Although the physiological and molecular bases of light-mediated tropisms in vegetative organs have been thoroughly investigated, the mechanisms that control inflorescence orientation in response to light gradients under natural conditions are not well understood. In this work, we have used a combination of laboratory and field experiments to investigate light-mediated re-orientation of Arabidopsis thaliana inflorescences.
We show that inflorescence phototropism is promoted by photons in the UV and blue spectral range (≤500 nm) and depends on multiple photoreceptor families. Experiments under controlled conditions show that UVR8 is the main photoreceptor mediating the phototropic response to narrowband UV-B radiation, and phototropins and cryptochromes control the response to narrowband blue light.
Interestingly, whereas phototropins mediate bending in response to low irradiances of blue, cryptochromes are the principal photoreceptors acting at high irradiances. Moreover, phototropins negatively regulate the action of cryptochromes at high irradiances of blue light. Experiments under natural field conditions demonstrate that cryptochromes are the principal photoreceptors acting in the promotion of the heliotropic response of inflorescences under full sunlight. |
| format | info:ar-repo/semantics/artículo |
| id | INTA12341 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2022 |
| publishDateRange | 2022 |
| publishDateSort | 2022 |
| publisher | Wiley |
| publisherStr | Wiley |
| record_format | dspace |
| spelling | INTA123412022-07-18T13:13:06Z Cryptochromes are the dominant photoreceptors mediating heliotropic responses of Arabidopsis inflorescences Serrano, Alejandro Miguel Vanhaelewyn, Lucas Vandenbussche, Filip Boccalandro, Hernan Esteban Maldonado, Belén Van Der Straeten, Dominique Ballaré, Carlos Luis Arana, María Veronica Arabidopsis thaliana Inflorescencias Fototropismo Inflorescences Phototropism Heliotropism Heliotropismo Cryptochromes Inflorescence movements in response to natural gradients of sunlight are frequently observed in the plant kingdom and are suggested to contribute to reproductive success. Although the physiological and molecular bases of light-mediated tropisms in vegetative organs have been thoroughly investigated, the mechanisms that control inflorescence orientation in response to light gradients under natural conditions are not well understood. In this work, we have used a combination of laboratory and field experiments to investigate light-mediated re-orientation of Arabidopsis thaliana inflorescences. We show that inflorescence phototropism is promoted by photons in the UV and blue spectral range (≤500 nm) and depends on multiple photoreceptor families. Experiments under controlled conditions show that UVR8 is the main photoreceptor mediating the phototropic response to narrowband UV-B radiation, and phototropins and cryptochromes control the response to narrowband blue light. Interestingly, whereas phototropins mediate bending in response to low irradiances of blue, cryptochromes are the principal photoreceptors acting at high irradiances. Moreover, phototropins negatively regulate the action of cryptochromes at high irradiances of blue light. Experiments under natural field conditions demonstrate that cryptochromes are the principal photoreceptors acting in the promotion of the heliotropic response of inflorescences under full sunlight. Estación Experimental Agropecuaria Bariloche Fil: Serrano, Alejandro Miguel. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto Argentino de Investigación de las Zonas Aridas; Argentina Fil: Vanhaelewyn, Lucas. Ghent University. Department of Biology. Laboratory of Functional Plant Biology; Bélgica Fil: Vandenbussche, Filip. Ghent University. Department of Biology. Laboratory of Functional Plant Biology; Bélgica Fil: Boccalandro, Hernan Esteban. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Biología Agrícola de Mendoza; Argentina Fil: Maldonado, Belén. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto Argentino de Investigación de las Zonas Aridas; Argentina Fil: Van Der Straeten, Dominique. Ghent University. Department of Biology. Laboratory of Functional Plant Biology; Bélgica Fil: Ballaré, Carlos Luis. Universidad Nacional de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agronomía; Argentina Fil: Arana, María Veronica. Instituto Nacional de Tecnologia Agropecuaria (INTA). Estacion Experimental Agropecuaria Bariloche. Area Forestal; Argentina Fil: Arana, María Veronica. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Instituto de Investigaciones Forestales y Agropecuarias Bariloche; Argentina 2022-07-18T13:05:42Z 2022-07-18T13:05:42Z 2021-10 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/12341 https://onlinelibrary.wiley.com/doi/abs/10.1111/pce.14139 1365-3040 https://doi.org/10.1111/pce.14139 eng info:eu-repo/semantics/restrictedAccess application/pdf Wiley Plant, Cell & Environment 44 (10) : 3246-3256 (Junio 2021) |
| spellingShingle | Arabidopsis thaliana Inflorescencias Fototropismo Inflorescences Phototropism Heliotropism Heliotropismo Cryptochromes Serrano, Alejandro Miguel Vanhaelewyn, Lucas Vandenbussche, Filip Boccalandro, Hernan Esteban Maldonado, Belén Van Der Straeten, Dominique Ballaré, Carlos Luis Arana, María Veronica Cryptochromes are the dominant photoreceptors mediating heliotropic responses of Arabidopsis inflorescences |
| title | Cryptochromes are the dominant photoreceptors mediating heliotropic responses of Arabidopsis inflorescences |
| title_full | Cryptochromes are the dominant photoreceptors mediating heliotropic responses of Arabidopsis inflorescences |
| title_fullStr | Cryptochromes are the dominant photoreceptors mediating heliotropic responses of Arabidopsis inflorescences |
| title_full_unstemmed | Cryptochromes are the dominant photoreceptors mediating heliotropic responses of Arabidopsis inflorescences |
| title_short | Cryptochromes are the dominant photoreceptors mediating heliotropic responses of Arabidopsis inflorescences |
| title_sort | cryptochromes are the dominant photoreceptors mediating heliotropic responses of arabidopsis inflorescences |
| topic | Arabidopsis thaliana Inflorescencias Fototropismo Inflorescences Phototropism Heliotropism Heliotropismo Cryptochromes |
| url | http://hdl.handle.net/20.500.12123/12341 https://onlinelibrary.wiley.com/doi/abs/10.1111/pce.14139 https://doi.org/10.1111/pce.14139 |
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