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Grant support

We acknowledge funding from MICINN (RTI2018-094691-B-C31), the National Natural Science Foundation in China(31850410483), the talent proposals in Sichuan Province (2020JDRC0065), and from Southwest University of Science and Technology (18ZX7131). EG is supported by MCIU/AEI/FEDER,UE [Postdoctoral Contract (IJCI-201732511)]. DAF is supported by INIA [FPI contract (BES-2017-081208)]. The study is also supported by INIA [grant number (RTA2015-00054C02-01)], by MCIU [grant number (PID2019-106701RR-I00/AEI/10.13039/501100011033)] and by Gobierno de Aragon [research group (H09_20R)]. MJA was supported by USDA-NIFA, AFRI (award number: 2019-67013-33895).

Análisis de autorías institucional
Alonso-Forn D. - Autor o Coautor
Peguero-Pina J.j. - Autor o Coautor
Sancho-Knapik, Domingo - Autor o Coautor
Gil-Pelegrín E. - Autor o Coautor
Publicaciones > Artículo

Leaf vein density enhances vascular redundancy instead of carbon uptake at the expense of increasing water leaks in oaks

Publicado en:Environmental And Experimental Botany. 188 (104527): - 2021-08-01 188(104527), doi: 10.1016/j.envexpbot.2021.104527

Alonso-Forn D.; Peguero-Pina J.j.; Sancho-Knapik, Domingo; Gil-Pelegrín E.;


18ZX7131 Southwest University of Science and Technology - Financiador
2019-67013-33895 USDA-NIFA, AFRI - Financiador
2020JDRC0065 talent proposals in Sichuan Province - Financiador
31850410483 National Natural Science Foundation in China - Financiador
Auburn Univ, Sch Forestry & Wildlife Sci, Auburn, AL 36849 USA - Autor o Coautor
BES-2017-081208RTA2015-00054C02-01 INIA - Financiador
Centro de Investigación y Tecnología Agroalimentaria de Aragón - Entidad de origen
Gobierno Aragon, Ctr Invest & Tecnol Agroalimentaria Aragon, Unidad Recursos Forestales, Zaragoza, Spain - Autor o Coautor
H09_20R Gobierno de Aragon - Financiador
IJCI-201732511 MCIU/AEI/FEDER,UE - Financiador
INRA, PIAF, UMR547, F-63100 Clermont Ferrand, France - Autor o Coautor
PID2019-106701RR-I00 MCIU - Financiador
RTI2018-094691-B-C31 MICINN - Financiador
Southwest Univ Sci & Technol, Sch Life Sci & Engn, Mianyang, Sichuan, Peoples R China - Autor o Coautor
Univ Alcala De Henares, Dept Life Sci, Madrid, Spain - Autor o Coautor
Univ Lleida, Dept Crop & Forest Sci, Lleida, Spain - Autor o Coautor
Univ Lleida, Joint Res Unit CTFC AGROTECNIO, Lleida, Spain - Autor o Coautor
Univ Wyoming, Dept Bot, Laramie, WY 82071 USA - Autor o Coautor
Univ Zaragoza, CITA, Inst Agroalimentario Aragon IA2, Zaragoza, Spain - Autor o Coautor
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Resúmen: Predicting plant growth from functional traits has been a long-term goal of experimental botany. Early studies considered that resource traits align across a single axis, from high to low growth rates. The drivers of nocturnal and cuticular leaf conductances have received much recent attention, but how they align with other functional traits along axes of resource use remains to be investigated. Here we examined correlated evolution of secondary growth, leaf economic, stomatal, venation and gas exchange traits across 12 Quercus species growing in a common garden. Variation in growth correlated with variation in assimilation and nocturnal conductance (gn). Our observations are consistent with the hypothesis of a negative relationship between SLA and leaf vein density (VLAall) within oaks, indicating that increased VLAall is a strategy to enhance leaf vascular redundancy against stress or perturbation as the degree of sclerophylly increases. gn was negatively correlated with growth and decoupled from daytime conductance and photosynthesis. gn seemed to be a passive process in this genus, apparently driven by enhanced water supply that results from increased VLAall. We also observed a positive relationship between leaf vein density and cuticular conductance, indicating that increasing VLAall may incur significant water costs under strong drought.

Palabras clave: Correlated evolution; Cuticular conductance; Cuticular transpiration; Deciduous tree; Drought; Evolution; Growth rate; Leaf area; Leaf vein density; Nocturnal activity; Nocturnal conductance; Nocturnal stomatal conductance; Oaks; Plant growth; Quercus; Stomata; Stomatal conductance; Tolerance; Trait coordination; Venation

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