Grapevine morphological shade acclimation is mediated by light quality whereas hydraulic shade acclimation is mediated by light intensity

Plants acclimate to shade by sensing light signals such as low photosynthetic active radiation (PAR), low blue light (BL) levels and low red-to-far red ratios (R:FR) trough plant photoreceptors cross talk. We previously demonstrated that grapevine is irresponsive to variations in R:FR and that BL-a...

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Detalles Bibliográficos
Otros Autores: González, Carina Verónica, Prieto, Jorge A., Mazza, Carlos, Jeréz, Damián Nicolás, Biruk, Lucía N., Jofré, María Florencia, Giordano, Carla V.
Formato: Artículo
Lenguaje:Inglés
Materias:
VITIS VINIFERA L.
BLUE LIGHT
PHOTOSYNTHETIC PHOTON FLUX DENSITY
HYDRAULIC ACCLIMATION
WATER USE EFFICIENCY
R FR
Acceso en línea:http://ri.agro.uba.ar/files/intranet/articulo/2021gonzalez.pdf
LINK AL EDITOR
Aporte de:Registro referencial: Solicitar el recurso aquí
Biblioteca Central (FAUBA) de Universidad de Buenos Aires
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024 |a 10.1016/j.plantsci.2021.110893 
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245 1 0 |a Grapevine morphological shade acclimation is mediated by light quality whereas hydraulic shade acclimation is mediated by light intensity 
520 |a Plants acclimate to shade by sensing light signals such as low photosynthetic active radiation (PAR), low blue light (BL) levels and low red-to-far red ratios (R:FR) trough plant photoreceptors cross talk. We previously demonstrated that grapevine is irresponsive to variations in R:FR and that BL-attenuation mediates morphological and architectural responses to shade increasing light interception and absorption efficiencies. However, we wondered if grapevine respond to low R:FR when BL is attenuated at the same time. Our objective was to evaluate if morphological, architectural and hydraulic acclimation to shade is mediated by low R:FR ratios and BL attenuation. To test this, we carried out experiments under natural radiation, manipulating light quality by selective sunlight exclusion and light supplementation. We grew grapevines under low PAR (LP) and four high PAR (HP) treatments: HP, HP plus FR supplementation (HP + FR), HP with BL attenuation (HP–B) and HP with BL attenuation plus FR supplementation (HP–B + FR). We found that plants grown under HP-B and HP-B + FR had similar morphological (stem and petiole length, leaf thickness and area), architectural (laminae’ angles) and anatomical (stomatal density) traits than plants grown under LP. However, only LP plants presented lower stomata differentiation, lower δ13C and hence lower water use efficiency. Therefore, even under a BL and R:FR attenuated environment, morphological and architectural responses were modulated by BL but not by variation in R:FR. Meanwhile water relations were affected by PAR intensity but not by changes in light quality. Knowing grapevine responses to light quantity and quality are indispensable to adopt tools or design new cultural management practices that manipulate irradiance in the field intending to improve crop performance. 
650 |2 Agrovoc  |9 26 
653 |a VITIS VINIFERA L. 
653 |a BLUE LIGHT 
653 |a PHOTOSYNTHETIC PHOTON FLUX DENSITY 
653 |a HYDRAULIC ACCLIMATION 
653 |a WATER USE EFFICIENCY 
653 |a R FR 
700 1 |a González, Carina Verónica  |u Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias (UNCUYO). Instituto de Biología Agrícola de Mendoza (IBAM). Luján de Cuyo, Mendoza, Argentina.  |u CONICET - Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias (UNCUYO). Instituto de Biología Agrícola de Mendoza (IBAM). Luján de Cuyo, Mendoza, Argentina.  |u Universidad Nacional de Cuyo. Facultad de Ciencias Exactas y Naturales (FCEN). Mendoza, Argentina.  |9 68220 
700 1 |a Prieto, Jorge A.  |u Instituto Nacional de Tecnología Agropecuaria (INTA). Centro Regional Mendoza – San Juan. Estación Experimental Agropecuaria Mendoza (EEA Mendoza). Mendoza, Argentina.  |9 68224 
700 1 |a Mazza, Carlos  |u Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura (IFEVA). Buenos Aires, Argentina.  |u CONICET – Universidad de Buenos Aires. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura (IFEVA). Buenos Aires, Argentina.  |9 12962 
700 1 |a Jeréz, Damián Nicolás  |u Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias (UNCUYO). Instituto de Biología Agrícola de Mendoza (IBAM). Luján de Cuyo, Mendoza, Argentina.  |u CONICET - Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias (UNCUYO). Instituto de Biología Agrícola de Mendoza (IBAM). Luján de Cuyo, Mendoza, Argentina.  |9 68222 
700 1 |a Biruk, Lucía N.  |u CONICET. Instituto Argentino de Investigaciones en Zonas Aridas (IADIZA). Mendoza, Argentina.  |9 67411 
700 1 |a Jofré, María Florencia  |u Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias (UNCUYO). Instituto de Biología Agrícola de Mendoza (IBAM). Luján de Cuyo, Mendoza, Argentina.  |u CONICET - Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias (UNCUYO). Instituto de Biología Agrícola de Mendoza (IBAM). Luján de Cuyo, Mendoza, Argentina.  |9 68223 
700 1 |a Giordano, Carla V.  |u CONICET. Instituto Argentino de Investigaciones en Zonas Aridas (IADIZA). Mendoza, Argentina.  |9 68225 
773 |t Plant Science  |g Vol.307 (2021), art.110893, 8 p., grafs., tbls. 
856 |f 2021gonzalez  |i en reservorio  |q application/pdf  |u http://ri.agro.uba.ar/files/intranet/articulo/2021gonzalez.pdf  |x ARTI202206 
856 |u http://www.elsevier.com  |z LINK AL EDITOR 
942 |c ARTICULO 
942 |c ENLINEA 
976 |a AAG 

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