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Drivers of nocturnal stomatal conductance in C3 and C4 plants

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dc.creator Chowdhury, Faqrul Islam
dc.creator Arteaga López, Carles
dc.creator Alam, Mohammad Shafiul
dc.creator Alam, Iftakharul
dc.creator Resco de Dios, Víctor
dc.date 2022
dc.date.accessioned 2025-11-03T12:15:22Z
dc.date.available 2025-11-03T12:15:22Z
dc.identifier https://doi.org/10.1016/j.scitotenv.2021.151952
dc.identifier 0048-9697
dc.identifier 1879-1026
dc.identifier http://hdl.handle.net/10459.1/73337
dc.identifier.uri http://fima-docencia.ub.edu:8080/xmlui/handle/123456789/24051
dc.description Nocturnal water losses were for long considered negligible, but it is now known that incomplete stomatal closure during the night leads to significant water losses at leaf, plant and ecosystem scales. However, only daytime transpiration is currently accounted for in evapotranspiration studies. Important uncertainties on the drivers of nocturnal water fluxes hinder its incorporation within modelling frameworks because some studies indicate that night-time stomatal drivers may differ from day-time responses. Here, we synthesise the studies on nocturnal stomatal conductance (gn) to determine underlying drivers through a systematic literature review and, whenever possible, meta-analytical techniques. Similar to daytime responses, we found negative effects of vapour pressure deficit, predawn water potential, air temperature, and salinity on gn across the plant species. However, the most apparent trend was an increase of gn from the beginning until the end of the night, indicating significant and widespread endogenous regulation by the circadian clock. We further observed how neither elevated CO2 nor nutrient status affected gn significantly across species. We also did not find any significant associations between gn and elevated ozone or increasing plant age. There was a paucity of studies on climatic extremes such heat waves and also few studies connected gn with anatomical features such as leaf specific area or stomatal density. Further studies are also needed to address the effects of plant sex, abscisic acid concentrations and genotypic variations on gn. Our findings solve the long-term conundrum on whether stomatal responses to daytime drivers are the same as those that during the nighttime.
dc.description Authors like to thank Erasmus Mundus international Master's course in MEDfOR (Mediterranean Forestry and Natural Resources Management, with reference 520137-1-2011-1-PT-ERA MUNDUS-EMMC) to host Faqrul Islam Chowdhury, with a full funding of Erasmus Mundus Partner Country Scholarship. We also acknowledge funding from the MICINN (RTI2018-094691-B-C31), the National Natural Science Foundation of China (U20A20179, 31850410483), the talent proposals in Sichuan Province (2020JDRC0065), from Southwest University of Science and Technology (18ZX7131), and Research and Publication Cell, University of Chittagong, Bangladesh (200/2020; date 19/10/2020).
dc.language eng
dc.publisher Elsevier
dc.relation info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/RTI2018-094691-B-C31/ES/PAPEL DE LA EVOLUCION DE LOS FENOTIPOS INTEGRADOS EN LA RESILIENCIA DE LOS PINOS MEDITERRANEOS EN UN AMBIENTE CAMBIANTE/
dc.relation Reproducció del document publicat a https://doi.org/10.1016/j.scitotenv.2021.151952
dc.relation Science of The Total Environment, 2022, vol. 814, p. 151952
dc.rights cc-by-nc-nd (c) Elsevier, 2021
dc.rights info:eu-repo/semantics/openAccess
dc.rights http://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subject Nocturnal stomatal conductance
dc.subject Transpiration
dc.subject Evapotranspiration
dc.subject Circadian clock
dc.title Drivers of nocturnal stomatal conductance in C3 and C4 plants
dc.type info:eu-repo/semantics/article
dc.type info:eu-repo/semantics/acceptedVersion


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