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A thinner jacket for frosty and windy climates? Global patterns in leaf cuticle thickness and its environmental associations.

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Title: A thinner jacket for frosty and windy climates? Global patterns in leaf cuticle thickness and its environmental associations.
Authors: Li, Xin'e1,2 (AUTHOR), Burrows, Geoff E.3 (AUTHOR), Dong, Ning4 (AUTHOR), Jordan, Gregory J.5 (AUTHOR), Kattge, Jens6,7 (AUTHOR), Lenz, Tanja I.1 (AUTHOR), Niinemets, Ülo8 (AUTHOR), Onoda, Yusuke9 (AUTHOR), Poorter, Hendrik1,10 (AUTHOR), Sack, Lawren11 (AUTHOR), Villar, Rafael12 (AUTHOR), Westoby, Mark1 (AUTHOR), Wright, Ian J.1,13,14 (AUTHOR) ian.j.wright@westernsydney.edu.au
Source: New Phytologist. Oct2025, Vol. 248 Issue 1, p107-124. 18p.
Subjects: Plant defenses, Paleoenvironmental studies, Ecological impact, Ecosystems, Phenotypic plasticity
Abstract: Summary: Plant cuticles protect the interior tissues from ambient hazards, including desiccation, UV light, physical wear, herbivores and pathogens. Consequently, cuticle properties are shaped by evolutionary selection.We compiled a global dataset of leaf cuticle thickness (CT) and accompanying leaf traits for 1212 species, mostly angiosperms, from 293 sites representing all vegetated continents. We developed and tested 11 hypotheses concerning ecological drivers of interspecific variation in CT.CT showed clear patterning according to latitude, biome, taxonomic family, site climate and other leaf traits. Species with thick leaves and/or high leaf mass per area tended to have thicker cuticles, as did evergreen relative to deciduous woody species, and species from sites that during the growing season were warmer, had fewer frost days and lower wind speeds, and occurred at lower latitudes. CT–environment relationships were notably stronger among nonwoody than woody species.Heavy investment in cuticle may be disadvantaged at sites with high winds and frequent frosts for 'economic' or biomechanical reasons, or because of reduced herbivore pressure. Alternatively, cuticles may become more heavily abraded under such conditions. Robust quantification of CT–trait–environment relationships provides new insights into the multiple roles of cuticles, with additional potential use in paleo‐ecological reconstruction. [ABSTRACT FROM AUTHOR]
Copyright of New Phytologist is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: A thinner jacket for frosty and windy climates? Global patterns in leaf cuticle thickness and its environmental associations.
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  Data: <searchLink fieldCode="AR" term="%22Li%2C+Xin'e%22">Li, Xin'e</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Burrows%2C+Geoff+E%2E%22">Burrows, Geoff E.</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Dong%2C+Ning%22">Dong, Ning</searchLink><relatesTo>4</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Jordan%2C+Gregory+J%2E%22">Jordan, Gregory J.</searchLink><relatesTo>5</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Kattge%2C+Jens%22">Kattge, Jens</searchLink><relatesTo>6,7</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Lenz%2C+Tanja+I%2E%22">Lenz, Tanja I.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Niinemets%2C+Ülo%22">Niinemets, Ülo</searchLink><relatesTo>8</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Onoda%2C+Yusuke%22">Onoda, Yusuke</searchLink><relatesTo>9</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Poorter%2C+Hendrik%22">Poorter, Hendrik</searchLink><relatesTo>1,10</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Sack%2C+Lawren%22">Sack, Lawren</searchLink><relatesTo>11</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Villar%2C+Rafael%22">Villar, Rafael</searchLink><relatesTo>12</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Westoby%2C+Mark%22">Westoby, Mark</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Wright%2C+Ian+J%2E%22">Wright, Ian J.</searchLink><relatesTo>1,13,14</relatesTo> (AUTHOR)<i> ian.j.wright@westernsydney.edu.au</i>
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  Data: <searchLink fieldCode="JN" term="%22New+Phytologist%22">New Phytologist</searchLink>. Oct2025, Vol. 248 Issue 1, p107-124. 18p.
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  Data: <searchLink fieldCode="DE" term="%22Plant+defenses%22">Plant defenses</searchLink><br /><searchLink fieldCode="DE" term="%22Paleoenvironmental+studies%22">Paleoenvironmental studies</searchLink><br /><searchLink fieldCode="DE" term="%22Ecological+impact%22">Ecological impact</searchLink><br /><searchLink fieldCode="DE" term="%22Ecosystems%22">Ecosystems</searchLink><br /><searchLink fieldCode="DE" term="%22Phenotypic+plasticity%22">Phenotypic plasticity</searchLink>
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  Data: Summary: Plant cuticles protect the interior tissues from ambient hazards, including desiccation, UV light, physical wear, herbivores and pathogens. Consequently, cuticle properties are shaped by evolutionary selection.We compiled a global dataset of leaf cuticle thickness (CT) and accompanying leaf traits for 1212 species, mostly angiosperms, from 293 sites representing all vegetated continents. We developed and tested 11 hypotheses concerning ecological drivers of interspecific variation in CT.CT showed clear patterning according to latitude, biome, taxonomic family, site climate and other leaf traits. Species with thick leaves and/or high leaf mass per area tended to have thicker cuticles, as did evergreen relative to deciduous woody species, and species from sites that during the growing season were warmer, had fewer frost days and lower wind speeds, and occurred at lower latitudes. CT–environment relationships were notably stronger among nonwoody than woody species.Heavy investment in cuticle may be disadvantaged at sites with high winds and frequent frosts for 'economic' or biomechanical reasons, or because of reduced herbivore pressure. Alternatively, cuticles may become more heavily abraded under such conditions. Robust quantification of CT–trait–environment relationships provides new insights into the multiple roles of cuticles, with additional potential use in paleo‐ecological reconstruction. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of New Phytologist is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1111/nph.70397
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        Text: English
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      – SubjectFull: Plant defenses
        Type: general
      – SubjectFull: Paleoenvironmental studies
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      – SubjectFull: Ecological impact
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      – SubjectFull: Ecosystems
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      – SubjectFull: Phenotypic plasticity
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              Text: Oct2025
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