Homeostasis of the temperature sensitivity of respiration over a range of growth temperatures indicated by a modified Arrhenius model

© 2015 The Authors. New Phytologist © 2015 New Phytologist Trust.

Bibliographische Detailangaben
Veröffentlicht in:The New phytologist. - 1979. - 207(2015), 1 vom: 27. Juli, Seite 34-42
1. Verfasser: Noguchi, Ko (VerfasserIn)
Weitere Verfasser: Yamori, Wataru, Hikosaka, Kouki, Terashima, Ichiro
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2015
Zugriff auf das übergeordnete Werk:The New phytologist
Schlagworte:Journal Article acclimation cold-sensitive species cold-tolerant species respiration temperature
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520 |a The temperature dependence of plant respiratory rate (R) changes in response to growth temperature. Here, we used a modified Arrhenius model incorporating the temperature dependence of activation energy (Eo ), and compared the temperature dependence of R between cold-sensitive and cold-tolerant species. We analyzed the temperature dependences of leaf CO2 efflux rate of plants cultivated at low (LT) or high temperature (HT). In plants grown at HT (HT plants), Eo at low measurement temperature varied among species, but Eo at growth temperature in HT plants did not vary and was comparable to that in plants grown at LT (LT plants), suggesting that the limiting process was similar at the respective growth temperatures. In LT plants, the integrated value of loge R, a measure of respiratory capacity, in cold-sensitive species was lower than that in cold-tolerant species. When plants were transferred from HT to LT, the respiratory capacity changed promptly after the transfer compared with the other parameters. These results suggest that a similar process limits R at different growth temperatures, and that the lower capacity of the respiratory system in cold-sensitive species may explain their low growth rate at LT 
650 4 |a Journal Article 
650 4 |a acclimation 
650 4 |a cold-sensitive species 
650 4 |a cold-tolerant species 
650 4 |a respiration 
650 4 |a temperature 
700 1 |a Yamori, Wataru  |e verfasserin  |4 aut 
700 1 |a Hikosaka, Kouki  |e verfasserin  |4 aut 
700 1 |a Terashima, Ichiro  |e verfasserin  |4 aut 
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