20.500.12556/DiRROS-25472 Soil nitrogen drives inverse acclimation of xylem growth cessation to rising temperature in Northern Hemisphere conifers Controlled experiments suggest that the seasonal build-up of nitrogen (N) limitation constrains the responses of forest autumn phenology to elevated temperatures. Therefore, rising soil N is expected to increase the delaying effects of elevated temperature on the end of the season, i.e., leaf senescence. However, the interactive effects of temperature, soil N, and aridity on xylem autumn phenology remain unknown. We conducted a wide spatial analysis from 75 conifer sites in the Northern Hemisphere and found that rising soil N increases the delaying effects of elevated temperature on the end of xylem cell wall thickening but reduced the delaying effects on the cessation of cell enlargement, especially in humid regions. The contrasting effects of elevated soil N on cell enlargement versus cell wall thickening could affect xylem cell anatomy, thereby induce changes in wood density, and induce a decoupling of stem size growth from photosynthate production. These analyses extend previous findings on forest autumn phenology by systematically investigating the spatial variation in the interactive effects of temperature and soil N on xylem autumn phenology at the cellular scale. soil moisture stem growth autumn phenology wood formation xylogenesis vlažnost tal debelinska rast dreves jesenska fenologija nastajanje lesa ksilogeneza true false true Angleški jezik Slovenski jezik Neznano 2026-01-21 11:35:39 2026-01-21 11:35:39 2026-01-22 04:04:12 0000-00-00 00:00:00 2025 0 0 Nasl. z nasl. zaslona; Opis vira z dne 21. 8. 2025; str. 1-6 iss. 30, [article no.] e2421834122 Vol. 121 2025 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 630*1 1091-6490 10.1073/pnas.2421834122 246225667 https://www.pnas.org/doi/10.1073/pnas.2421834122 1 f18c3d8b-f6b4-11f0-a15d-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=38604 zhang-et-al-2025-soil-nitrogen-drives-inverse-acclimation-of-xylem-growth-cessation-to-rising-temperature-in-northern.pdf zhang-et-al-2025-soil-nitrogen-drives-inverse-acclimation-of-xylem-growth-cessation-to-rising-temperature-in-northern.pdf 1 49890D9ADA82A4ED6C4E214854519CCD 39c0fe98a4c5ca7b2aef9a8d74f914ecb5f23b102b839e416cef37cf47c318b9 07717f51-f6b5-11f0-a15d-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=38605 Gozdarski inštitut Slovenije 0 0 0