{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,1]],"date-time":"2026-09-01T18:13:54Z","timestamp":1788286434530,"version":"build-2803163510"},"reference-count":77,"publisher":"Oxford University Press (OUP)","license":[{"start":{"date-parts":[[2026,8,12]],"date-time":"2026-08-12T00:00:00Z","timestamp":1786492800000},"content-version":"am","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"European Union Next Generation EU","award":["CN00000022"],"award-info":[{"award-number":["CN00000022"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Background and Aims<\/jats:title>\n                    <jats:p>Climate change is increasing the frequency and intensity of droughts, challenging the growth, hydraulic function and survival of woody plants. Poplar is a fast-growing species widely cultivated for biomass and cellulose production, but it is also highly sensitive to water deficit, with substantial variation among species and clones.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>This study compared the drought responses of two Populus \u00a0\u00d7 \u00a0canadensis clones, \u2018Tucano\u2019 and \u2018San Martino\u2019, under gradually imposed, prolonged water stress. Physiological traits and intrinsic wood anatomical characteristics revealed different strategies between clones for coping with drought.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Key Results<\/jats:title>\n                    <jats:p>Compared with the \u2018San Martino\u2019 clone, the \u2018Tucano\u2019 clone exhibited faster stomatal closure under moderate stress and a greater resistance to embolism formation. The resistance was further supported by specific intrinsic wood anatomical traits, including higher vessel density, increased vessel clustering, greater theoretical hydraulic conductivity, thicker cell walls and higher wood density. Conversely, the delayed stomatal closure, the less negative P50 value and the distinct xylem anatomical structure observed in \u2018San Martino\u2019 suggest a significantly higher vulnerability to prolonged water deficit.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>\u2018Tucano\u2019 adopts an effective drought-avoidance strategy, integrating stomatal regulation, intrinsic wood anatomy and carbon allocation to balance hydraulic safety with growth and wood quality. The study highlights specific traits as key determinants of drought resistance and supports the selection of a specific clone for poplar cultivation in future climate scenarios characterized by water scarcity.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1093\/aob\/mcag254","type":"journal-article","created":{"date-parts":[[2026,8,12]],"date-time":"2026-08-12T11:51:54Z","timestamp":1786535514000},"source":"Crossref","is-referenced-by-count":0,"title":["Two clones, two paths: divergent intrinsic xylem traits and hydraulic responses to prolonged drought in poplar"],"prefix":"10.1093","author":[{"given":"Niccol\u00f2","family":"Tricerri","sequence":"first","affiliation":[{"name":"Department of Agriculture, Forest and Food Sciences, University of Turin , Largo Paolo Braccini 2, Grugliasco 10095 ,","place":["Italy"]},{"name":"University School for Advanced Studies IUSS Pavia , Piazza della Vittoria 15, Pavia 27100 ,","place":["Italy"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0008-4025-3463","authenticated-orcid":false,"given":"Rachele","family":"Gamba","sequence":"additional","affiliation":[{"name":"Department of Agriculture, Forest and Food Sciences, University of Turin , Largo Paolo Braccini 2, Grugliasco 10095 ,","place":["Italy"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Cristina","family":"Morabito","sequence":"additional","affiliation":[{"name":"Department of Agriculture, Forest and Food Sciences, University of Turin , Largo Paolo Braccini 2, Grugliasco 10095 ,","place":["Italy"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Silvia","family":"Cavalletto","sequence":"additional","affiliation":[{"name":"Department of Agriculture, Forest and Food Sciences, University of Turin , Largo Paolo Braccini 2, Grugliasco 10095 ,","place":["Italy"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Francesco","family":"Maimone","sequence":"additional","affiliation":[{"name":"Department of Agriculture, Forest and Food Sciences, University of Turin , Largo Paolo Braccini 2, Grugliasco 10095 ,","place":["Italy"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Pier Mario","family":"Chiarabaglio","sequence":"additional","affiliation":[{"name":"Council for Agricultural Research and Economics, Research Centre for Forestry and Wood , Strada Frassineto 35, Casale Monferrato 15033 ,","place":["Italy"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Andrea","family":"Carra","sequence":"additional","affiliation":[{"name":"Council for Agricultural Research and Economics, Research Centre for Forestry and Wood , Strada Frassineto 35, Casale Monferrato 15033 ,","place":["Italy"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Alan","family":"Crivellaro","sequence":"additional","affiliation":[{"name":"Department of Agriculture, Forest and Food Sciences, University of Turin , Largo Paolo Braccini 2, Grugliasco 10095 ,","place":["Italy"]},{"name":"Forest Biometrics Laboratory, Faculty of Forestry, \u2018Stefan cel Mare\u2019 University of Suceava , Str. 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