When time is not of the essence : constraints to the carbon balance of bryophytes

© The Author(s) 2022. Published by Oxford University Press on behalf of the Society for Experimental Biology. All rights reserved. For permissions, please email: journals.permissionsoup.com.

Bibliographische Detailangaben
Veröffentlicht in:Journal of experimental botany. - 1985. - 73(2022), 13 vom: 16. Juli, Seite 4562-4575
1. Verfasser: Perera-Castro, Alicia V (VerfasserIn)
Weitere Verfasser: González-Rodríguez, Águeda M, Fernández-Marín, Beatriz
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2022
Zugriff auf das übergeordnete Werk:Journal of experimental botany
Schlagworte:Journal Article Review Bryophytes Rubisco carbon balance cell wall optimum temperature photosynthesis relative growth rate structure mehr... water relations Carbon Dioxide 142M471B3J Carbon 7440-44-0 Ribulose-Bisphosphate Carboxylase EC 4.1.1.39
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520 |a © The Author(s) 2022. Published by Oxford University Press on behalf of the Society for Experimental Biology. All rights reserved. For permissions, please email: journals.permissionsoup.com. 
520 |a The data available so far indicate that the photosynthetic and relative growth rates of bryophytes are 10% of those reported for tracheophytes. By examining the existing literature and reanalysing data published in over 100 studies, this review examines the ecophysiological, biochemical, and structural reasons behind this phenomenon. The limiting Rubisco content and surface for gas exchange are the internal factors that can explain the low photosynthetic and growth rates of bryophytes. The role of the thicker cell walls of bryophytes in limiting CO2 diffusion is unclear, due to the current uncertainties regarding their porosity and permeability to CO2. From this review, it is also evident that, despite bryophytes having low photosynthetic rates, their positive carbon balance is tightly related to their capacity to deal with extreme conditions. Contributing factors include their capacity to deal with large daily temperature oscillations, and their capacity to delay the cessation of photosynthesis under water deficit (or to tolerate desiccation in extreme situations). Although further studies on bryophytes are needed before more solid conclusions can be drawn, it seems that their success relies on their remarkable tolerance to a highly variable environment, possibly at the expense of their maximum photosynthetic rate 
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650 4 |a carbon balance 
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650 4 |a photosynthesis 
650 4 |a relative growth rate 
650 4 |a structure 
650 4 |a water relations 
650 7 |a Carbon Dioxide  |2 NLM 
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700 1 |a González-Rodríguez, Águeda M  |e verfasserin  |4 aut 
700 1 |a Fernández-Marín, Beatriz  |e verfasserin  |4 aut 
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