Drought effects on the leaf uptake of carbonyl sulfide and CO2 in Pinus sylvestris and Juniperus communis

Drought effects on the leaf uptake of carbonyl sulfide and CO2 in Pinus sylvestris and Juniperus communis | Authorea try { document.documentElement.classList.add('js'); } catch (e) { } var _gaq = _gaq || []; _gaq.push(['_setAccount', 'G-8VDV14Y67G']); _gaq.push(['_trackPageview']); (function() { var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true; ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js'; var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s); })(); Skip to main content Preprints Collections Wiley Open Research IET Open Research Ecological Society of Japan All Collections About About Authorea FAQs Contact Us Quick Search anywhere Search for preprint articles, keywords, etc. Search Search ADVANCED SEARCH SCROLL This is a preprint and has not been peer reviewed. Data may be preliminary. 17 December 2025 V1 Latest version Share on Drought effects on the leaf uptake of carbonyl sulfide and CO2 in Pinus sylvestris and Juniperus communis Authors : Anna de Vries 0009-0003-0052-4138 [email protected] , Felix Spielmann 0000-0003-2452-7993 , Albin Hammerle 0000-0003-1963-5906 , Judith Schmack , Werner Jud 0000-0003-4267-0435 , Thomas Karl , Jörg-Peter Schnitzler , Jana Barbro Winkler 0000-0002-7092-9742 , and Georg Wohlfahrt 0000-0003-3080-6702 Authors Info & Affiliations https://doi.org/10.22541/au.176596943.38479124/v1 Published Plant Stress Version of record Peer review timeline 176 views 115 downloads Contents Abstract Supplementary Material Information & Authors Metrics & Citations View Options References Figures Tables Media Share Abstract Gross primary productivity (GPP) drives the land carbon sink, but its response to climate change and extreme weather events like drought remains uncertain. However, GPP cannot be measured directly but must be inferred through proxies, which introduces uncertainties that limit predictions. One promising approach is to measure carbonyl sulfide (COS) fluxes, supported by a thorough understanding of the relative uptake ratio between COS and CO 2 , the leaf relative uptake (LRU). We derived plant-scale COS and CO 2 fluxes and calculated the LRU of Pinus sylvestris (pine) and Juniperus communis (juniper), under controlled drought conditions. The LRU remained constant in pine across the whole drought gradient due to opposing physiological processes: adjustment of conductances to COS and changes in the ratio of intercellular-to-ambient CO 2 concentration. In juniper, the LRU also had a constant value for soil water content (SWC) above 17 % and increased with decreasing SWC below this threshold, driven by a decline in the stomatal to internal conductance to COS. Under drought stress, both COS and CO 2 uptake declined more in pine than in juniper. This study highlights LRU variability among species and water availability levels, providing insights into the underlying ecophysiological processes. Supplementary Material File (ms_adv_lru_drought_v7.docx) Download 335.39 KB Information & Authors Information Version history V1 Version 1 17 December 2025 Peer review timeline Published Plant Stress Version of Record 1 May 2026 Published Copyright This work is licensed under a Non Exclusive No Reuse License. Keywords carbonyl sulfide controlled drought experiment leaf relative uptake photosynthesis: carbon reactions stomata stomatal conductance Authors Affiliations Anna de Vries 0009-0003-0052-4138 [email protected] Universitat Innsbruck Institut fur Okologie View all articles by this author Felix Spielmann 0000-0003-2452-7993 Universitat Innsbruck Institut fur Okologie View all articles by this author Albin Hammerle 0000-0003-1963-5906 Universitat Innsbruck Institut fur Okologie View all articles by this author Judith Schmack Universitat Innsbruck View all articles by this author Werner Jud 0000-0003-4267-0435 Universitat Innsbruck View all articles by this author Thomas Karl Universitat Innsbruck View all articles by this author Jörg-Peter Schnitzler Helmholtz Zentrum Munchen Environmental Health Center View all articles by this author Jana Barbro Winkler 0000-0002-7092-9742 Helmholtz Zentrum Munchen Environmental Health Center View all articles by this author Georg Wohlfahrt 0000-0003-3080-6702 Universitat Innsbruck Institut fur Okologie View all articles by this author Metrics & Citations Metrics Article Usage 176 views 115 downloads .FvxKWukQNSOunydq8rnd { width: 100px; } Citations Download citation Anna de Vries, Felix Spielmann, Albin Hammerle, et al. Drought effects on the leaf uptake of carbonyl sulfide and CO2 in Pinus sylvestris and Juniperus communis. Authorea . 17 December 2025. DOI: https://doi.org/10.22541/au.176596943.38479124/v1 If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download. For more information or tips please see 'Downloading to a citation manager' in the Help menu . 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