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An extremely low stomatal density mutant overcomes cooling limitations at supra-optimal temperature by adjusting stomatal size and leaf thickness
dc.contributor.author | Pérez Bueno, María Luisa | |
dc.contributor.author | Barón, Matilde | |
dc.date.accessioned | 2022-09-14T11:18:25Z | |
dc.date.available | 2022-09-14T11:18:25Z | |
dc.date.issued | 2022-07-22 | |
dc.identifier.citation | Pérez-Bueno ML... [et al.] (2022) An extremely low stomatal density mutant overcomes cooling limitations at supra-optimal temperature by adjusting stomatal size and leaf thickness. Front. Plant Sci. 13:919299. doi: [10.3389/fpls.2022.919299] | es_ES |
dc.identifier.uri | http://hdl.handle.net/10481/76689 | |
dc.description.abstract | The impact of global warming on transpiration and photosynthesis would compromise plant fitness, impacting on crop yields and ecosystem functioning. In this frame, we explored the performance of a set of Arabidopsis mutants carrying partial or total loss-of-function alleles of stomatal development genes and displaying distinct stomatal abundances. Using microscopy and non-invasive imaging techniques on this genotype collection, we examined anatomical leaf and stomatal traits, plant growth and development, and physiological performance at optimal (22 C) and supraoptimal (30 C) temperatures. All genotypes showed thermomorphogenetic responses but no signs of heat stress. Data analysis singled out an extremely low stomatal abundance mutant, spch-5. At 22 C, spch-5 had lower transpiration and warmer leaves than the wild type. However, at 30 C, this mutant developed larger stomata and thinner leaves, paralleled by a notable cooling capacity, similar to that of the wild type. Despite their low stomatal density (SD), spch-5 plants grown at 30 C showed no photosynthesis or growth penalties. The behavior of spch-5 at supra-optimal temperature exemplifies how the effect of very low stomatal numbers can be counteracted by a combination of larger stomata and thinner leaves. Furthermore, it provides a novel strategy for coping with high growth temperatures. | es_ES |
dc.description.sponsorship | AGL2015- 65053-R and PID2019-105362RB-I00 RTI2018-094652-B-I00 Spanish Government RTI2018-094652-B-I00 MCIN/AEI/10.13039/501100011033 “ERDF A way of making Europe | es_ES |
dc.description.sponsorship | PPII10- 0194-4164 and SBPLY/17/180501/000394 Junta de Comunidades de Castilla-La Mancha | es_ES |
dc.description.sponsorship | UCLM intramural funds | es_ES |
dc.description.sponsorship | EU FEDER funds | es_ES |
dc.language.iso | eng | es_ES |
dc.publisher | Frontiers | es_ES |
dc.rights | Atribución 4.0 Internacional | * |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | * |
dc.subject | Supra-optimal temperature | es_ES |
dc.subject | Stomatal development | es_ES |
dc.subject | Photosynthesis | es_ES |
dc.subject | Transpiration | es_ES |
dc.subject | Heat adaptation | es_ES |
dc.subject | Thermomorphogenesis | es_ES |
dc.subject | Autofluorescence imaging | es_ES |
dc.title | An extremely low stomatal density mutant overcomes cooling limitations at supra-optimal temperature by adjusting stomatal size and leaf thickness | es_ES |
dc.type | journal article | es_ES |
dc.rights.accessRights | open access | es_ES |
dc.identifier.doi | 10.3389/fpls.2022.919299 | |
dc.type.hasVersion | VoR | es_ES |