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Following the star : inflorescence heliotropism

Colaborador(es): Serrano, Alejandro M. CONICET. Buenos Aires, Argentina. IADIZA. Mendoza, Argentina | Arana, María Verónica. CONICET. Buenos Aires, Argentina. Instituto Nacional de Tecnología Agropecuaria (INTA).Estación Experimental Agropecuaria Bariloche (EEA Bariloche). San Carlos de Bariloche, Río Negro, Argentina | Vanhaelewyn, Lucas. Ghent University. Department of Biology. Laboratory of Functional Plant Biology. Gent, Belgium | Ballaré, Carlos Luis. CONICET. Buenos Aires, Argentina. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura (IFEVA). Buenos Aires, Argentina.. CONICET – Universidad de Buenos Aires. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura (IFEVA). Laboratorio de Análisis Regional y Teledetección (LART) Buenos Aires, Argentina | Straetend, Dominique Van Der. Ghent University. Department of Biology. Laboratory of Functional Plant Biology. Gent, Belgium | Vandenbussche, Filip. Ghent University. Department of Biology. Laboratory of Functional Plant Biology. Gent, Belgium.
ISSN: 0098-8472.Tipo de material: Artículos y capítulos. Recurso electrónico.Tema(s): HELIOTROPISM | PHOTOTROPISM | FLOWERS | INFLORESCENCES | ARABIDOPSIS | SUNFLOWER | PHOTOTROPINS | AUXIN | POLLINATION | FITNESS | Recursos en línea: Haga clic para acceso en línea | LINK AL EDITOR En: Environmental and experimental botany vol.147 (2018), p.75-85, il., fot., grafs.Resumen: Plant movements in response to directional solar radiation, known as “heliotropism” are frequently observed in nature. Although there is a considerable amount of literature on these movements in vegetative organs, knowledge about heliotropic responses in flowers and inflorescences is relatively limited. Here we comprehensively review studies on this topic, profile the diversity of responses encompassed under the term “heliotropism” and propose a conceptual framework for their classification. In addition, we discuss the mechanisms underlying different types of heliotropism in two species commonly used as model systems: Arabidopsis and sunflower. Finally, the ecological consequences of floral heliotropism are elaborated with an emphasis on the effects on plant reproductive success, and the potential agricultural implications of manipulating heliotropic responses are addressed as well. We conclude that inflorescence heliotropism appears conserved in many plant species that depend on pollinators, and consists of an auxin dependent response to solar radiation.
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Plant movements in response to directional solar radiation, known as “heliotropism” are frequently observed in nature. Although there is a considerable amount of literature on these movements in vegetative organs, knowledge about heliotropic responses in flowers and inflorescences is relatively limited. Here we comprehensively review studies on this topic, profile the diversity of responses encompassed under the term “heliotropism” and propose a conceptual framework for their classification. In addition, we discuss the mechanisms underlying different types of heliotropism in two species commonly used as model systems: Arabidopsis and sunflower. Finally, the ecological consequences of floral heliotropism are elaborated with an emphasis on the effects on plant reproductive success, and the potential agricultural implications of manipulating heliotropic responses are addressed as well. We conclude that inflorescence heliotropism appears conserved in many plant species that depend on pollinators, and consists of an auxin dependent response to solar radiation.

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