Carregant...
Fitxers
Tipus de document
ArticleVersió
Versió acceptadaData de publicació
Tots els drets reservats
Si us plau utilitzeu sempre aquest identificador per citar o enllaçar aquest document: https://hdl.handle.net/2445/55566
Two distinct plant respiratory physiotypes might exist which correspond to fast-growing and slow-growing species
Títol de la revista
Director/Tutor
ISSN de la revista
Títol del volum
Recurs relacionat
Resum
The origin of the carbon atoms in CO2 respired by leaves in the dark of several plant species has been studied using 13C/12C stable isotopes. This study was conducted using an open gas exchange system for isotope labeling that was coupled to an elemental analyser and further linked to an isotope ratio mass spectrometer (EA-IRMS) or coupled to a gas chromatography-combustion-isotope ratio mass spectrometer (GC-C-IRMS). We demonstrate here that the carbon, which is recently assimilated during photosynthesis, accounts for nearly ca. 50% of the carbon in the CO2 lost through dark respiration after illumination in fast-growing and cultivated plants and trees and, accounts for only ca. 10% in slow-growing plants. Moreover, our study shows that fast- growing plants, which had the largest percentages of newly fixed carbon of leaf-respired CO2 , were also those with the largest shoot/root ratios, whereas slow-growing plants showed the lowest shoot/root values.
Matèries (anglès)
Citació
Citació
NOGUÉS MESTRES, Salvador, ALJAZAIRI LÓPEZ, Salvador, ARIAS, Claudia, SÁNCHEZ, Elena, ARANJUELO MICHELENA, Iker. Two distinct plant respiratory physiotypes might exist which correspond to fast-growing and slow-growing species. _Journal of Plant Physiology_. 2014. Vol. 171, núm. 13, pàgs. 1157-1163. [consulta: 14 de gener de 2026]. ISSN: 0176-1617. [Disponible a: https://hdl.handle.net/2445/55566]