دورية أكاديمية
Linking fine root lifespan to root chemical and morphological traits-A global analysis.
| العنوان: | Linking fine root lifespan to root chemical and morphological traits-A global analysis. |
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| المؤلفون: | Hou J; Chinese Academy of Sciences Key Laboratory of Forest Ecology and Silviculture, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China.; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China., McCormack ML; The Center for Tree Science, The Morton Arboretum, Lisle, IL 60532., Reich PB; Department of Forest Resources, University of Minnesota, St. Paul, MN 55108.; Institute for Global Change Biology, University of Michigan, Ann Arbor, MI 48109.; Hawkesbury Institute Environment, Western Sydney University, Penrith, NSW 2753, Australia., Sun T; Chinese Academy of Sciences Key Laboratory of Forest Ecology and Silviculture, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China., Phillips RP; Department of Biology, Indiana University, Bloomington, IN 47405., Lambers H; School of Biological Sciences, University of Western Australia, Perth, WA 6009, Australia., Chen HYH; Faculty of Natural Resources Management, Lakehead University, Thunder Bay, ON P7B 5E1, Canada., Ding Y; Department of Forest Sciences/Institute for Atmospheric and Earth System Research, University of Helsinki, Helsinki FI-00014, Finland.; Department of Physics, University of Helsinki, Helsinki FI-00014, Finland., Comas LH; Department of Soil & Crop Science, Colorado State University, Ft. Collins, CO 80523.; United States Department of Agriculture, Agricultural Research Service, Water Management Research Unit, Ft. Collins, CO 80526., Valverde-Barrantes OJ; Department of Biology Science, Institute of Environment, Florida International University, Miami, FL 33199., Solly EF; Helmholtz Centre for Environmental Research-Umwelt Forschungs Zentrum, Leipzig 04318, Germany., Freschet GT; Station d'écologie théorique et expérimentale, Centre National de la Recherche Scientifique, Moulis 09200, France. |
| المصدر: | Proceedings of the National Academy of Sciences of the United States of America [Proc Natl Acad Sci U S A] 2024 Apr 16; Vol. 121 (16), pp. e2320623121. Date of Electronic Publication: 2024 Apr 12. |
| نوع المنشور: | Journal Article |
| اللغة: | English |
| بيانات الدورية: | Publisher: National Academy of Sciences Country of Publication: United States NLM ID: 7505876 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1091-6490 (Electronic) Linking ISSN: 00278424 NLM ISO Abbreviation: Proc Natl Acad Sci U S A Subsets: MEDLINE |
| أسماء مطبوعة: | Original Publication: Washington, DC : National Academy of Sciences |
| مواضيع طبية MeSH: | Longevity* , Ecosystem*, Biological Evolution ; Climate Change ; Head |
| مستخلص: | Fine root lifespan is a critical trait associated with contrasting root strategies of resource acquisition and protection. Yet, its position within the multidimensional "root economics space" synthesizing global root economics strategies is largely uncertain, and it is rarely represented in frameworks integrating plant trait variations. Here, we compiled the most comprehensive dataset of absorptive median root lifespan (MRL) data including 98 observations from 79 woody species using (mini-)rhizotrons across 40 sites and linked MRL to other plant traits to address questions of the regulators of MRL at large spatial scales. We demonstrate that MRL not only decreases with plant investment in root nitrogen (associated with more metabolically active tissues) but also increases with construction of larger diameter roots which is often associated with greater plant reliance on mycorrhizal symbionts. Although theories linking organ structure and function suggest that root traits should play a role in modulating MRL, we found no correlation between root traits associated with structural defense (root tissue density and specific root length) and MRL. Moreover, fine root and leaf lifespan were globally unrelated, except among evergreen species, suggesting contrasting evolutionary selection between leaves and roots facing contrasting environmental influences above vs. belowground. At large geographic scales, MRL was typically longer at sites with lower mean annual temperature and higher mean annual precipitation. Overall, this synthesis uncovered several key ecophysiological covariates and environmental drivers of MRL, highlighting broad avenues for accurate parametrization of global biogeochemical models and the understanding of ecosystem response to global climate change. Competing Interests: Competing interests statement:The authors declare no competing interest. |
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| معلومات مُعتمدة: | 32022054 and 32192432 MOST | National Natural Science Foundation of China (NSFC); 2022YFD2201300 and 2020YFA0608100 MOST | National Key Research and Development Program of China (NKPs); ANR-10-LABX-41 Laboratoire d'Excellence TULIP (Labex TULIP); 3012-13210-001-000D USDA | Agricultural Research Service (ARS); 2106096 NSF | BIO | Division of Environmental Biology (DEB) |
| فهرسة مساهمة: | Keywords: absorptive root; fine root lifespan; leaf lifespan; root economics spectrum; root traits |
| تواريخ الأحداث: | Date Created: 20240412 Date Completed: 20240415 Latest Revision: 20240423 |
| رمز التحديث: | 20240423 |
| مُعرف محوري في PubMed: | PMC11032481 |
| DOI: | 10.1073/pnas.2320623121 |
| PMID: | 38607930 |
| قاعدة البيانات: | MEDLINE |
| تدمد: | 1091-6490 |
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| DOI: | 10.1073/pnas.2320623121 |