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231225s2020 xx |||||o 00| ||eng c |
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|a 10.1111/nph.16661
|2 doi
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|a pubmed24n1033.xml
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|a (DE-627)NLM309985102
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|a (NLM)32415853
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
1 |
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|a Rashid, Fatimah Azzahra Ahmad
|e verfasserin
|4 aut
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| 245 |
1 |
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|a Diel- and temperature-driven variation of leaf dark respiration rates and metabolite levels in rice
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| 264 |
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|c 2020
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Completed 14.05.2021
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|a Date Revised 14.05.2021
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a © 2020 The Authors. New Phytologist © 2020 New Phytologist Trust.
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|a Leaf respiration in the dark (Rdark ) is often measured at a single time during the day, with hot-acclimation lowering Rdark at a common measuring temperature. However, it is unclear whether the diel cycle influences the extent of thermal acclimation of Rdark , or how temperature and time of day interact to influence respiratory metabolites. To examine these issues, we grew rice under 25°C : 20°C, 30°C : 25°C and 40°C : 35°C day : night cycles, measuring Rdark and changes in metabolites at five time points spanning a single 24-h period. Rdark differed among the treatments and with time of day. However, there was no significant interaction between time and growth temperature, indicating that the diel cycle does not alter thermal acclimation of Rdark . Amino acids were highly responsive to the diel cycle and growth temperature, and many were negatively correlated with carbohydrates and with organic acids of the tricarboxylic acid (TCA) cycle. Organic TCA intermediates were significantly altered by the diel cycle irrespective of growth temperature, which we attributed to light-dependent regulatory control of TCA enzyme activities. Collectively, our study shows that environmental disruption of the balance between respiratory substrate supply and demand is corrected for by shifts in TCA-dependent metabolites
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a amino acids
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|a diel cycle
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|a growth temperature
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|a leaf dark respiration
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| 650 |
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|a metabolites
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| 650 |
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|a rice
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|a sugars
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|a tricarboxylic acid (TCA) cycle
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| 650 |
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|a Carbon Dioxide
|2 NLM
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| 650 |
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|a 142M471B3J
|2 NLM
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| 700 |
1 |
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|a Scafaro, Andrew P
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Asao, Shinichi
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Fenske, Ricarda
|e verfasserin
|4 aut
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| 700 |
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|a Dewar, Roderick C
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Masle, Josette
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Taylor, Nicolas L
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Atkin, Owen K
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t The New phytologist
|d 1979
|g 228(2020), 1 vom: 15. Okt., Seite 56-69
|w (DE-627)NLM09818248X
|x 1469-8137
|7 nnns
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| 773 |
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|g volume:228
|g year:2020
|g number:1
|g day:15
|g month:10
|g pages:56-69
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|u http://dx.doi.org/10.1111/nph.16661
|3 Volltext
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|d 228
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|h 56-69
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