Megafire smoke exposure jeopardizes tree carbohydrate reserves and yield.
Autor: | Orozco J; Plant Sciences, University of California, Davis, Davis, CA, USA. jsorozco@ucdavis.edu., Guzmán-Delgado P; Plant Sciences, University of California, Davis, Davis, CA, USA., Zwieniecki MA; Plant Sciences, University of California, Davis, Davis, CA, USA. |
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Jazyk: | angličtina |
Zdroj: | Nature plants [Nat Plants] 2024 Nov; Vol. 10 (11), pp. 1635-1642. Date of Electronic Publication: 2024 Oct 02. |
DOI: | 10.1038/s41477-024-01819-4 |
Abstrakt: | The global incidence of megafires is on the rise, leading to extensive areas being shrouded in dense smoke for prolonged periods, spanning days or weeks 1 . Here, by integrating long-term regional observations of non-structural carbohydrate content in trees across California's Central Valley with spatiotemporal satellite data, we present compelling evidence that dense smoke plumes negatively impact carbohydrate stores in three tree species: Prunus dulcis, Pistacia vera and Juglans regia. Our findings show that the presence of smoke causes a significant decrease in total non-structural carbohydrates, with reductions in the accumulation of both soluble sugar and starch reserves. This decline in carbohydrate levels persists through the trees' dormancy period into the next season's bloom, culminating in a reduced yield. Our results highlight a previously unrecognized wildfire threat that could affect plant health and ecosystem stability in both agricultural and natural environments. Competing Interests: Competing interests The authors declare no competing interests. (© 2024. The Author(s), under exclusive licence to Springer Nature Limited.) |
Databáze: | MEDLINE |
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