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The authors would like to thank Dr Charles L. Guy for his review of the manuscript. Permits No. 145/2019 for entrance and plant collection were provided by INACH.

Analysis of institutional authors

Sancho-Knapik, DomingoAuthorJavier Peguero-Pina, JoseAuthorGil-Pelegrin, EustaquioAuthor

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November 26, 2024
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Leaf hydraulic properties of Antarctic plants: effects of growth temperature and its coordination with photosynthesis

Publicated to:Journal Of Experimental Botany. 75 (7): 2013-2026 - 2024-01-04 75(7), DOI: 10.1093/jxb/erad474

Authors: Saez, Patricia L; Vallejos, Valentina; Sancho-Knapik, Domingo; Cavieres, Lohengrin A; Ramirez, Constanza F; Bravo, Leon A; Javier Peguero-Pina, Jose; Gil-Pelegrin, Eustaquio; Galmes, Jeroni

Affiliations

Ctr Invest & Tecnol Agroalimentaria Aragon CITA, Dept Sistemas Agr Forestales & Medio Ambiente, Zaragoza, Spain - Author
Inst Ecol & Biodivers IEB, Concepcion, Chile - Author
Sistemas Agrícolas, Forestales y Medio Ambiente. Centro de Investigación y Tecnología Agroalimentaria de Aragón - Author
Univ Concepcion, Ctr Biotechnol, Fac Ciencias Forestales, Lab Cult Tejidos Vegetales, Concepcion, Chile - Author
Univ Concepcion, Fac Ciencias Nat & Oceanograf, Dept Bot, ECOBIOSIS, Barrio Univ S-N, Concepcion, Chile - Author
Univ Illes Balears, Res Grp Plant Biol Mediterranean Condit, INAGEA, Palma De Mallorca, Balear Isl, Spain - Author
Univ La Frontera, Fac Ciencias Agr & Medioambiente, Lab Fisiol & Biol Mol Vegetal, Inst Agroind,Dept Ciencias Agron & Recursos Nat, Temuco, Chile - Author
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Abstract

One of the well-documented effects of regional warming in Antarctica is the impact on flora. Warmer conditions modify several leaf anatomical traits of Antarctic vascular plants, increasing photosynthesis and growth. Given that CO2 and water vapor partially share their diffusion pathways through the leaf, changes in leaf anatomy could also affect the hydraulic traits of Antarctic plants. We evaluated the effects of growth temperature on several anatomical and hydraulic parameters of Antarctic plants and assessed the trait co-variation between these parameters and photosynthetic performance. Warmer conditions promoted an increase in leaf and whole plant hydraulic conductivity, correlating with adjustments in carbon assimilation. These adjustments were consistent with changes in leaf vasculature, where Antarctic species displayed different strategies. At higher temperature, Colobanthus quitensis decreased the number of leaf xylem vessels, but increased their diameter. In contrast, in Deschampsia antarctica the diameter did not change, but the number of vessels increased. Despite this contrasting behavior, some traits such as a small leaf diameter of vessels and a high cell wall rigidity were maintained in both species, suggesting a water-conservation response associated with the ability of Antarctic plants to cope with harsh environments. Antarctic vascular plants modify leaf anatomical traits with increasing growth temperature, enabling coordinated increases in leaf hydraulic conductivity and photosynthetic capacity.

Keywords

Antarctic plantsAntarctic regionsClimate changeCo2Gas-exchangeGrowth temperatureHydraulicInduced embolismLeaveLimiting factorMesophyll conductancePhotosynthesisPlant leavesPlantsPressurePrunus-laurocerasusTemperatureVascular plantsWarminWarmingWater relations

Quality index

Bibliometric impact. Analysis of the contribution and dissemination channel

The work has been published in the journal Journal Of Experimental Botany due to its progression and the good impact it has achieved in recent years, according to the agency WoS (JCR), it has become a reference in its field. In the year of publication of the work, 2024 there are still no calculated indicators, but in 2023, it was in position 24/265, thus managing to position itself as a Q1 (Primer Cuartil), in the category Plant Sciences. Notably, the journal is positioned above the 90th percentile.

Independientemente del impacto esperado determinado por el canal de difusión, es importante destacar el impacto real observado de la propia aportación.

Según las diferentes agencias de indexación, el número de citas acumuladas por esta publicación hasta la fecha 2025-07-12:

  • WoS: 4
  • Scopus: 4
  • Europe PMC: 2

Impact and social visibility

From the perspective of influence or social adoption, and based on metrics associated with mentions and interactions provided by agencies specializing in calculating the so-called "Alternative or Social Metrics," we can highlight as of 2025-07-12:

  • The use, from an academic perspective evidenced by the Altmetric agency indicator referring to aggregations made by the personal bibliographic manager Mendeley, gives us a total of: 7.
  • The use of this contribution in bookmarks, code forks, additions to favorite lists for recurrent reading, as well as general views, indicates that someone is using the publication as a basis for their current work. This may be a notable indicator of future more formal and academic citations. This claim is supported by the result of the "Capture" indicator, which yields a total of: 8 (PlumX).

With a more dissemination-oriented intent and targeting more general audiences, we can observe other more global scores such as:

  • The Total Score from Altmetric: 4.35.
  • The number of mentions on the social network X (formerly Twitter): 8 (Altmetric).

It is essential to present evidence supporting full alignment with institutional principles and guidelines on Open Science and the Conservation and Dissemination of Intellectual Heritage. A clear example of this is:

  • The work has been submitted to a journal whose editorial policy allows open Open Access publication.
  • Assignment of a Handle/URN as an identifier within the deposit in the Institutional Repository: http://hdl.handle.net/10532/7416

Leadership analysis of institutional authors

This work has been carried out with international collaboration, specifically with researchers from: Chile.