Regulation and recovery of sink strength in rice plants grown under changes in light intensity
The aim of this study was to characterise the sequence of traits that influence the response of rice morphogenesis to a shortage in carbohydrate supply and to its recovery. Plants were grown under 70% shading or full-light exposure for distinct periods during the vegetative and early reproductive phases in field and controlled environments. Lower organ vigour (i.e. higher specific leaf area and specific stem length), sugar concentration, tiller emergence and leaf elongation rate; higher leaf blade to sheath length ratio and preferential assimilate allocation to sink (elongating) leaves, were observed soon after the onset of shading. Organ vigour was affected before any appreciable effect on tiller emergence was noted. All the processes resumed after the shading removal, which coincided with a boost in sugar concentration; however, the extent of recovery in organ vigour and tillering depended on the growth stage at which shading was applied. It is concluded that crop response to changes in carbohydrate supply at the early stage favoured leaf area production by adjusting transient reserve levels and biomass allocation. Results of this study provide further insights into the role of soluble carbohydrates in plant and crop phenotypic plasticity and, thus, into the value of such processes in plant growth models.
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Subjects: | F62 - Physiologie végétale - Croissance et développement, Oryza sativa, éclairage, morphogénèse, régulation physiologique, métabolisme des glucides, teneur en glucides, sucre, amidon, tallage, ombrage, http://aims.fao.org/aos/agrovoc/c_5438, http://aims.fao.org/aos/agrovoc/c_4326, http://aims.fao.org/aos/agrovoc/c_4943, http://aims.fao.org/aos/agrovoc/c_32719, http://aims.fao.org/aos/agrovoc/c_1299, http://aims.fao.org/aos/agrovoc/c_1298, http://aims.fao.org/aos/agrovoc/c_7498, http://aims.fao.org/aos/agrovoc/c_7369, http://aims.fao.org/aos/agrovoc/c_7773, http://aims.fao.org/aos/agrovoc/c_7020, http://aims.fao.org/aos/agrovoc/c_5783, |
Online Access: | http://agritrop.cirad.fr/555395/ http://agritrop.cirad.fr/555395/1/document_555395.pdf |
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dig-cirad-fr-5553952024-02-16T19:01:59Z http://agritrop.cirad.fr/555395/ http://agritrop.cirad.fr/555395/ Regulation and recovery of sink strength in rice plants grown under changes in light intensity. Lafarge Tanguy, Seassau Célia, Martin Meryil, Bueno Crisanta Sunio, Clément-Vidal Anne, Schreck Eva, Luquet Delphine. 2010. Functional Plant Biology, 37 (5) : 413-428.https://doi.org/10.1071/FP09137 <https://doi.org/10.1071/FP09137> Regulation and recovery of sink strength in rice plants grown under changes in light intensity Lafarge, Tanguy Seassau, Célia Martin, Meryil Bueno, Crisanta Sunio Clément-Vidal, Anne Schreck, Eva Luquet, Delphine eng 2010 Functional Plant Biology F62 - Physiologie végétale - Croissance et développement Oryza sativa éclairage morphogénèse régulation physiologique métabolisme des glucides teneur en glucides sucre amidon tallage ombrage http://aims.fao.org/aos/agrovoc/c_5438 http://aims.fao.org/aos/agrovoc/c_4326 http://aims.fao.org/aos/agrovoc/c_4943 http://aims.fao.org/aos/agrovoc/c_32719 http://aims.fao.org/aos/agrovoc/c_1299 http://aims.fao.org/aos/agrovoc/c_1298 http://aims.fao.org/aos/agrovoc/c_7498 http://aims.fao.org/aos/agrovoc/c_7369 http://aims.fao.org/aos/agrovoc/c_7773 http://aims.fao.org/aos/agrovoc/c_7020 Philippines http://aims.fao.org/aos/agrovoc/c_5783 The aim of this study was to characterise the sequence of traits that influence the response of rice morphogenesis to a shortage in carbohydrate supply and to its recovery. Plants were grown under 70% shading or full-light exposure for distinct periods during the vegetative and early reproductive phases in field and controlled environments. Lower organ vigour (i.e. higher specific leaf area and specific stem length), sugar concentration, tiller emergence and leaf elongation rate; higher leaf blade to sheath length ratio and preferential assimilate allocation to sink (elongating) leaves, were observed soon after the onset of shading. Organ vigour was affected before any appreciable effect on tiller emergence was noted. All the processes resumed after the shading removal, which coincided with a boost in sugar concentration; however, the extent of recovery in organ vigour and tillering depended on the growth stage at which shading was applied. It is concluded that crop response to changes in carbohydrate supply at the early stage favoured leaf area production by adjusting transient reserve levels and biomass allocation. Results of this study provide further insights into the role of soluble carbohydrates in plant and crop phenotypic plasticity and, thus, into the value of such processes in plant growth models. article info:eu-repo/semantics/article Journal Article info:eu-repo/semantics/publishedVersion http://agritrop.cirad.fr/555395/1/document_555395.pdf application/pdf Cirad license info:eu-repo/semantics/restrictedAccess https://agritrop.cirad.fr/mention_legale.html https://doi.org/10.1071/FP09137 10.1071/FP09137 info:eu-repo/semantics/altIdentifier/doi/10.1071/FP09137 info:eu-repo/semantics/altIdentifier/purl/https://doi.org/10.1071/FP09137 |
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F62 - Physiologie végétale - Croissance et développement Oryza sativa éclairage morphogénèse régulation physiologique métabolisme des glucides teneur en glucides sucre amidon tallage ombrage http://aims.fao.org/aos/agrovoc/c_5438 http://aims.fao.org/aos/agrovoc/c_4326 http://aims.fao.org/aos/agrovoc/c_4943 http://aims.fao.org/aos/agrovoc/c_32719 http://aims.fao.org/aos/agrovoc/c_1299 http://aims.fao.org/aos/agrovoc/c_1298 http://aims.fao.org/aos/agrovoc/c_7498 http://aims.fao.org/aos/agrovoc/c_7369 http://aims.fao.org/aos/agrovoc/c_7773 http://aims.fao.org/aos/agrovoc/c_7020 http://aims.fao.org/aos/agrovoc/c_5783 F62 - Physiologie végétale - Croissance et développement Oryza sativa éclairage morphogénèse régulation physiologique métabolisme des glucides teneur en glucides sucre amidon tallage ombrage http://aims.fao.org/aos/agrovoc/c_5438 http://aims.fao.org/aos/agrovoc/c_4326 http://aims.fao.org/aos/agrovoc/c_4943 http://aims.fao.org/aos/agrovoc/c_32719 http://aims.fao.org/aos/agrovoc/c_1299 http://aims.fao.org/aos/agrovoc/c_1298 http://aims.fao.org/aos/agrovoc/c_7498 http://aims.fao.org/aos/agrovoc/c_7369 http://aims.fao.org/aos/agrovoc/c_7773 http://aims.fao.org/aos/agrovoc/c_7020 http://aims.fao.org/aos/agrovoc/c_5783 |
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F62 - Physiologie végétale - Croissance et développement Oryza sativa éclairage morphogénèse régulation physiologique métabolisme des glucides teneur en glucides sucre amidon tallage ombrage http://aims.fao.org/aos/agrovoc/c_5438 http://aims.fao.org/aos/agrovoc/c_4326 http://aims.fao.org/aos/agrovoc/c_4943 http://aims.fao.org/aos/agrovoc/c_32719 http://aims.fao.org/aos/agrovoc/c_1299 http://aims.fao.org/aos/agrovoc/c_1298 http://aims.fao.org/aos/agrovoc/c_7498 http://aims.fao.org/aos/agrovoc/c_7369 http://aims.fao.org/aos/agrovoc/c_7773 http://aims.fao.org/aos/agrovoc/c_7020 http://aims.fao.org/aos/agrovoc/c_5783 F62 - Physiologie végétale - Croissance et développement Oryza sativa éclairage morphogénèse régulation physiologique métabolisme des glucides teneur en glucides sucre amidon tallage ombrage http://aims.fao.org/aos/agrovoc/c_5438 http://aims.fao.org/aos/agrovoc/c_4326 http://aims.fao.org/aos/agrovoc/c_4943 http://aims.fao.org/aos/agrovoc/c_32719 http://aims.fao.org/aos/agrovoc/c_1299 http://aims.fao.org/aos/agrovoc/c_1298 http://aims.fao.org/aos/agrovoc/c_7498 http://aims.fao.org/aos/agrovoc/c_7369 http://aims.fao.org/aos/agrovoc/c_7773 http://aims.fao.org/aos/agrovoc/c_7020 http://aims.fao.org/aos/agrovoc/c_5783 Lafarge, Tanguy Seassau, Célia Martin, Meryil Bueno, Crisanta Sunio Clément-Vidal, Anne Schreck, Eva Luquet, Delphine Regulation and recovery of sink strength in rice plants grown under changes in light intensity |
description |
The aim of this study was to characterise the sequence of traits that influence the response of rice morphogenesis to a shortage in carbohydrate supply and to its recovery. Plants were grown under 70% shading or full-light exposure for distinct periods during the vegetative and early reproductive phases in field and controlled environments. Lower organ vigour (i.e. higher specific leaf area and specific stem length), sugar concentration, tiller emergence and leaf elongation rate; higher leaf blade to sheath length ratio and preferential assimilate allocation to sink (elongating) leaves, were observed soon after the onset of shading. Organ vigour was affected before any appreciable effect on tiller emergence was noted. All the processes resumed after the shading removal, which coincided with a boost in sugar concentration; however, the extent of recovery in organ vigour and tillering depended on the growth stage at which shading was applied. It is concluded that crop response to changes in carbohydrate supply at the early stage favoured leaf area production by adjusting transient reserve levels and biomass allocation. Results of this study provide further insights into the role of soluble carbohydrates in plant and crop phenotypic plasticity and, thus, into the value of such processes in plant growth models. |
format |
article |
topic_facet |
F62 - Physiologie végétale - Croissance et développement Oryza sativa éclairage morphogénèse régulation physiologique métabolisme des glucides teneur en glucides sucre amidon tallage ombrage http://aims.fao.org/aos/agrovoc/c_5438 http://aims.fao.org/aos/agrovoc/c_4326 http://aims.fao.org/aos/agrovoc/c_4943 http://aims.fao.org/aos/agrovoc/c_32719 http://aims.fao.org/aos/agrovoc/c_1299 http://aims.fao.org/aos/agrovoc/c_1298 http://aims.fao.org/aos/agrovoc/c_7498 http://aims.fao.org/aos/agrovoc/c_7369 http://aims.fao.org/aos/agrovoc/c_7773 http://aims.fao.org/aos/agrovoc/c_7020 http://aims.fao.org/aos/agrovoc/c_5783 |
author |
Lafarge, Tanguy Seassau, Célia Martin, Meryil Bueno, Crisanta Sunio Clément-Vidal, Anne Schreck, Eva Luquet, Delphine |
author_facet |
Lafarge, Tanguy Seassau, Célia Martin, Meryil Bueno, Crisanta Sunio Clément-Vidal, Anne Schreck, Eva Luquet, Delphine |
author_sort |
Lafarge, Tanguy |
title |
Regulation and recovery of sink strength in rice plants grown under changes in light intensity |
title_short |
Regulation and recovery of sink strength in rice plants grown under changes in light intensity |
title_full |
Regulation and recovery of sink strength in rice plants grown under changes in light intensity |
title_fullStr |
Regulation and recovery of sink strength in rice plants grown under changes in light intensity |
title_full_unstemmed |
Regulation and recovery of sink strength in rice plants grown under changes in light intensity |
title_sort |
regulation and recovery of sink strength in rice plants grown under changes in light intensity |
url |
http://agritrop.cirad.fr/555395/ http://agritrop.cirad.fr/555395/1/document_555395.pdf |
work_keys_str_mv |
AT lafargetanguy regulationandrecoveryofsinkstrengthinriceplantsgrownunderchangesinlightintensity AT seassaucelia regulationandrecoveryofsinkstrengthinriceplantsgrownunderchangesinlightintensity AT martinmeryil regulationandrecoveryofsinkstrengthinriceplantsgrownunderchangesinlightintensity AT buenocrisantasunio regulationandrecoveryofsinkstrengthinriceplantsgrownunderchangesinlightintensity AT clementvidalanne regulationandrecoveryofsinkstrengthinriceplantsgrownunderchangesinlightintensity AT schreckeva regulationandrecoveryofsinkstrengthinriceplantsgrownunderchangesinlightintensity AT luquetdelphine regulationandrecoveryofsinkstrengthinriceplantsgrownunderchangesinlightintensity |
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1792497594632503296 |