Effect of carbohydrates and night temperature on night respiration in rice
Global warming causes night temperature (NT) to increase faster than day temperature in the tropics. According to crop growth models, respiration incurs a loss of 40–60% of photosynthate. The thermal sensitivity of night respiration (R n) will thus reduce biomass. Instantaneous and acclimated effects of NT on R n of leaves and seedlings of two rice cultivars having a variable level of carbohydrates, induced by exposure to different light intensity on the previous day, were investigated. Experiments were conducted in a greenhouse and growth chambers, with R n measured on the youngest fully expanded leaves or whole seedlings. Dry weight-based R n was 2.6-fold greater for seedlings than for leaves. Leaf R n was linearly related to starch (positive intercept) and soluble sugar concentration (zero intercept). Increased NT caused higher R n at a given carbohydrate concentration. The change of R n at NT increasing from 21 °C to 31 °C was 2.4-fold for the instantaneous response but 1.2- to 1.7-fold after acclimation. The maintenance component of R n (R m'), estimated by assimilate starvation, averaged 28% in seedlings and 34% in leaves, with no significant thermal effect on this ratio. The acclimated effect of increased NT on R m' across experiments was 1.5-fold for a 10 °C increase in NT. No cultivar differences were observed in R n or R m' responses. The results suggest that the commonly used Q10=2 rule overestimates thermal response of respiration, and R n largely depends on assimilate resources.
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dig-cirad-fr-5770812024-01-28T22:49:06Z http://agritrop.cirad.fr/577081/ http://agritrop.cirad.fr/577081/ Effect of carbohydrates and night temperature on night respiration in rice. Peraudeau Sebastien, Lafarge Tanguy, Roques Sandrine, Quiñones Cherryl O., Clément-Vidal Anne, Ouwerkerk Pieter B.F., Van Rie Jeroen, Fabre Denis, Jagadish Krishna S.V., Dingkuhn Michaël. 2015. Journal of Experimental Botany, 66 (13) : 3931-3944.https://doi.org/10.1093/jxb/erv193 <https://doi.org/10.1093/jxb/erv193> Effect of carbohydrates and night temperature on night respiration in rice Peraudeau, Sebastien Lafarge, Tanguy Roques, Sandrine Quiñones, Cherryl O. Clément-Vidal, Anne Ouwerkerk, Pieter B.F. Van Rie, Jeroen Fabre, Denis Jagadish, Krishna S.V. Dingkuhn, Michaël eng 2015 Journal of Experimental Botany F62 - Physiologie végétale - Croissance et développement F01 - Culture des plantes P40 - Météorologie et climatologie U10 - Informatique, mathématiques et statistiques Oryza sativa métabolisme des glucides respiration cellulaire facteur climatique facteur du milieu température changement climatique adaptation aux changements climatiques perte biomasse teneur en glucides feuille croissance ombrage rythme circadien analyse de régression http://aims.fao.org/aos/agrovoc/c_5438 http://aims.fao.org/aos/agrovoc/c_1299 http://aims.fao.org/aos/agrovoc/c_6527 http://aims.fao.org/aos/agrovoc/c_29554 http://aims.fao.org/aos/agrovoc/c_2594 http://aims.fao.org/aos/agrovoc/c_7657 http://aims.fao.org/aos/agrovoc/c_1666 http://aims.fao.org/aos/agrovoc/c_1374567058134 http://aims.fao.org/aos/agrovoc/c_4438 http://aims.fao.org/aos/agrovoc/c_926 http://aims.fao.org/aos/agrovoc/c_1298 http://aims.fao.org/aos/agrovoc/c_4243 http://aims.fao.org/aos/agrovoc/c_3394 http://aims.fao.org/aos/agrovoc/c_7020 http://aims.fao.org/aos/agrovoc/c_9865 http://aims.fao.org/aos/agrovoc/c_16335 France Philippines http://aims.fao.org/aos/agrovoc/c_3081 http://aims.fao.org/aos/agrovoc/c_5783 Global warming causes night temperature (NT) to increase faster than day temperature in the tropics. According to crop growth models, respiration incurs a loss of 40–60% of photosynthate. The thermal sensitivity of night respiration (R n) will thus reduce biomass. Instantaneous and acclimated effects of NT on R n of leaves and seedlings of two rice cultivars having a variable level of carbohydrates, induced by exposure to different light intensity on the previous day, were investigated. Experiments were conducted in a greenhouse and growth chambers, with R n measured on the youngest fully expanded leaves or whole seedlings. Dry weight-based R n was 2.6-fold greater for seedlings than for leaves. Leaf R n was linearly related to starch (positive intercept) and soluble sugar concentration (zero intercept). Increased NT caused higher R n at a given carbohydrate concentration. The change of R n at NT increasing from 21 °C to 31 °C was 2.4-fold for the instantaneous response but 1.2- to 1.7-fold after acclimation. The maintenance component of R n (R m'), estimated by assimilate starvation, averaged 28% in seedlings and 34% in leaves, with no significant thermal effect on this ratio. The acclimated effect of increased NT on R m' across experiments was 1.5-fold for a 10 °C increase in NT. No cultivar differences were observed in R n or R m' responses. The results suggest that the commonly used Q10=2 rule overestimates thermal response of respiration, and R n largely depends on assimilate resources. article info:eu-repo/semantics/article Journal Article info:eu-repo/semantics/publishedVersion http://agritrop.cirad.fr/577081/1/Peraudeau%20et%20al.%202015%20Effect%20of%20carbohydrates%20and%20night%20temperature%20on%20night%20respiration%20in%20rice.pdf text Cirad license info:eu-repo/semantics/restrictedAccess https://agritrop.cirad.fr/mention_legale.html https://doi.org/10.1093/jxb/erv193 10.1093/jxb/erv193 info:eu-repo/semantics/altIdentifier/doi/10.1093/jxb/erv193 info:eu-repo/semantics/altIdentifier/purl/https://doi.org/10.1093/jxb/erv193 |
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F62 - Physiologie végétale - Croissance et développement F01 - Culture des plantes P40 - Météorologie et climatologie U10 - Informatique, mathématiques et statistiques Oryza sativa métabolisme des glucides respiration cellulaire facteur climatique facteur du milieu température changement climatique adaptation aux changements climatiques perte biomasse teneur en glucides feuille croissance ombrage rythme circadien analyse de régression http://aims.fao.org/aos/agrovoc/c_5438 http://aims.fao.org/aos/agrovoc/c_1299 http://aims.fao.org/aos/agrovoc/c_6527 http://aims.fao.org/aos/agrovoc/c_29554 http://aims.fao.org/aos/agrovoc/c_2594 http://aims.fao.org/aos/agrovoc/c_7657 http://aims.fao.org/aos/agrovoc/c_1666 http://aims.fao.org/aos/agrovoc/c_1374567058134 http://aims.fao.org/aos/agrovoc/c_4438 http://aims.fao.org/aos/agrovoc/c_926 http://aims.fao.org/aos/agrovoc/c_1298 http://aims.fao.org/aos/agrovoc/c_4243 http://aims.fao.org/aos/agrovoc/c_3394 http://aims.fao.org/aos/agrovoc/c_7020 http://aims.fao.org/aos/agrovoc/c_9865 http://aims.fao.org/aos/agrovoc/c_16335 http://aims.fao.org/aos/agrovoc/c_3081 http://aims.fao.org/aos/agrovoc/c_5783 F62 - Physiologie végétale - Croissance et développement F01 - Culture des plantes P40 - Météorologie et climatologie U10 - Informatique, mathématiques et statistiques Oryza sativa métabolisme des glucides respiration cellulaire facteur climatique facteur du milieu température changement climatique adaptation aux changements climatiques perte biomasse teneur en glucides feuille croissance ombrage rythme circadien analyse de régression http://aims.fao.org/aos/agrovoc/c_5438 http://aims.fao.org/aos/agrovoc/c_1299 http://aims.fao.org/aos/agrovoc/c_6527 http://aims.fao.org/aos/agrovoc/c_29554 http://aims.fao.org/aos/agrovoc/c_2594 http://aims.fao.org/aos/agrovoc/c_7657 http://aims.fao.org/aos/agrovoc/c_1666 http://aims.fao.org/aos/agrovoc/c_1374567058134 http://aims.fao.org/aos/agrovoc/c_4438 http://aims.fao.org/aos/agrovoc/c_926 http://aims.fao.org/aos/agrovoc/c_1298 http://aims.fao.org/aos/agrovoc/c_4243 http://aims.fao.org/aos/agrovoc/c_3394 http://aims.fao.org/aos/agrovoc/c_7020 http://aims.fao.org/aos/agrovoc/c_9865 http://aims.fao.org/aos/agrovoc/c_16335 http://aims.fao.org/aos/agrovoc/c_3081 http://aims.fao.org/aos/agrovoc/c_5783 |
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F62 - Physiologie végétale - Croissance et développement F01 - Culture des plantes P40 - Météorologie et climatologie U10 - Informatique, mathématiques et statistiques Oryza sativa métabolisme des glucides respiration cellulaire facteur climatique facteur du milieu température changement climatique adaptation aux changements climatiques perte biomasse teneur en glucides feuille croissance ombrage rythme circadien analyse de régression http://aims.fao.org/aos/agrovoc/c_5438 http://aims.fao.org/aos/agrovoc/c_1299 http://aims.fao.org/aos/agrovoc/c_6527 http://aims.fao.org/aos/agrovoc/c_29554 http://aims.fao.org/aos/agrovoc/c_2594 http://aims.fao.org/aos/agrovoc/c_7657 http://aims.fao.org/aos/agrovoc/c_1666 http://aims.fao.org/aos/agrovoc/c_1374567058134 http://aims.fao.org/aos/agrovoc/c_4438 http://aims.fao.org/aos/agrovoc/c_926 http://aims.fao.org/aos/agrovoc/c_1298 http://aims.fao.org/aos/agrovoc/c_4243 http://aims.fao.org/aos/agrovoc/c_3394 http://aims.fao.org/aos/agrovoc/c_7020 http://aims.fao.org/aos/agrovoc/c_9865 http://aims.fao.org/aos/agrovoc/c_16335 http://aims.fao.org/aos/agrovoc/c_3081 http://aims.fao.org/aos/agrovoc/c_5783 F62 - Physiologie végétale - Croissance et développement F01 - Culture des plantes P40 - Météorologie et climatologie U10 - Informatique, mathématiques et statistiques Oryza sativa métabolisme des glucides respiration cellulaire facteur climatique facteur du milieu température changement climatique adaptation aux changements climatiques perte biomasse teneur en glucides feuille croissance ombrage rythme circadien analyse de régression http://aims.fao.org/aos/agrovoc/c_5438 http://aims.fao.org/aos/agrovoc/c_1299 http://aims.fao.org/aos/agrovoc/c_6527 http://aims.fao.org/aos/agrovoc/c_29554 http://aims.fao.org/aos/agrovoc/c_2594 http://aims.fao.org/aos/agrovoc/c_7657 http://aims.fao.org/aos/agrovoc/c_1666 http://aims.fao.org/aos/agrovoc/c_1374567058134 http://aims.fao.org/aos/agrovoc/c_4438 http://aims.fao.org/aos/agrovoc/c_926 http://aims.fao.org/aos/agrovoc/c_1298 http://aims.fao.org/aos/agrovoc/c_4243 http://aims.fao.org/aos/agrovoc/c_3394 http://aims.fao.org/aos/agrovoc/c_7020 http://aims.fao.org/aos/agrovoc/c_9865 http://aims.fao.org/aos/agrovoc/c_16335 http://aims.fao.org/aos/agrovoc/c_3081 http://aims.fao.org/aos/agrovoc/c_5783 Peraudeau, Sebastien Lafarge, Tanguy Roques, Sandrine Quiñones, Cherryl O. Clément-Vidal, Anne Ouwerkerk, Pieter B.F. Van Rie, Jeroen Fabre, Denis Jagadish, Krishna S.V. Dingkuhn, Michaël Effect of carbohydrates and night temperature on night respiration in rice |
description |
Global warming causes night temperature (NT) to increase faster than day temperature in the tropics. According to crop growth models, respiration incurs a loss of 40–60% of photosynthate. The thermal sensitivity of night respiration (R n) will thus reduce biomass. Instantaneous and acclimated effects of NT on R n of leaves and seedlings of two rice cultivars having a variable level of carbohydrates, induced by exposure to different light intensity on the previous day, were investigated. Experiments were conducted in a greenhouse and growth chambers, with R n measured on the youngest fully expanded leaves or whole seedlings. Dry weight-based R n was 2.6-fold greater for seedlings than for leaves. Leaf R n was linearly related to starch (positive intercept) and soluble sugar concentration (zero intercept). Increased NT caused higher R n at a given carbohydrate concentration. The change of R n at NT increasing from 21 °C to 31 °C was 2.4-fold for the instantaneous response but 1.2- to 1.7-fold after acclimation. The maintenance component of R n (R m'), estimated by assimilate starvation, averaged 28% in seedlings and 34% in leaves, with no significant thermal effect on this ratio. The acclimated effect of increased NT on R m' across experiments was 1.5-fold for a 10 °C increase in NT. No cultivar differences were observed in R n or R m' responses. The results suggest that the commonly used Q10=2 rule overestimates thermal response of respiration, and R n largely depends on assimilate resources. |
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article |
topic_facet |
F62 - Physiologie végétale - Croissance et développement F01 - Culture des plantes P40 - Météorologie et climatologie U10 - Informatique, mathématiques et statistiques Oryza sativa métabolisme des glucides respiration cellulaire facteur climatique facteur du milieu température changement climatique adaptation aux changements climatiques perte biomasse teneur en glucides feuille croissance ombrage rythme circadien analyse de régression http://aims.fao.org/aos/agrovoc/c_5438 http://aims.fao.org/aos/agrovoc/c_1299 http://aims.fao.org/aos/agrovoc/c_6527 http://aims.fao.org/aos/agrovoc/c_29554 http://aims.fao.org/aos/agrovoc/c_2594 http://aims.fao.org/aos/agrovoc/c_7657 http://aims.fao.org/aos/agrovoc/c_1666 http://aims.fao.org/aos/agrovoc/c_1374567058134 http://aims.fao.org/aos/agrovoc/c_4438 http://aims.fao.org/aos/agrovoc/c_926 http://aims.fao.org/aos/agrovoc/c_1298 http://aims.fao.org/aos/agrovoc/c_4243 http://aims.fao.org/aos/agrovoc/c_3394 http://aims.fao.org/aos/agrovoc/c_7020 http://aims.fao.org/aos/agrovoc/c_9865 http://aims.fao.org/aos/agrovoc/c_16335 http://aims.fao.org/aos/agrovoc/c_3081 http://aims.fao.org/aos/agrovoc/c_5783 |
author |
Peraudeau, Sebastien Lafarge, Tanguy Roques, Sandrine Quiñones, Cherryl O. Clément-Vidal, Anne Ouwerkerk, Pieter B.F. Van Rie, Jeroen Fabre, Denis Jagadish, Krishna S.V. Dingkuhn, Michaël |
author_facet |
Peraudeau, Sebastien Lafarge, Tanguy Roques, Sandrine Quiñones, Cherryl O. Clément-Vidal, Anne Ouwerkerk, Pieter B.F. Van Rie, Jeroen Fabre, Denis Jagadish, Krishna S.V. Dingkuhn, Michaël |
author_sort |
Peraudeau, Sebastien |
title |
Effect of carbohydrates and night temperature on night respiration in rice |
title_short |
Effect of carbohydrates and night temperature on night respiration in rice |
title_full |
Effect of carbohydrates and night temperature on night respiration in rice |
title_fullStr |
Effect of carbohydrates and night temperature on night respiration in rice |
title_full_unstemmed |
Effect of carbohydrates and night temperature on night respiration in rice |
title_sort |
effect of carbohydrates and night temperature on night respiration in rice |
url |
http://agritrop.cirad.fr/577081/ http://agritrop.cirad.fr/577081/1/Peraudeau%20et%20al.%202015%20Effect%20of%20carbohydrates%20and%20night%20temperature%20on%20night%20respiration%20in%20rice.pdf |
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