{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,15]],"date-time":"2026-04-15T11:07:19Z","timestamp":1776251239136,"version":"3.50.1"},"reference-count":51,"publisher":"Wiley","issue":"5","license":[{"start":{"date-parts":[[2025,9,2]],"date-time":"2025-09-02T00:00:00Z","timestamp":1756771200000},"content-version":"vor","delay-in-days":1,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2025,9,1]],"date-time":"2025-09-01T00:00:00Z","timestamp":1756684800000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"funder":[{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["32172619"],"award-info":[{"award-number":["32172619"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Physiologia Plantarum"],"published-print":{"date-parts":[[2025,9]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:p>\n                    <jats:italic>Leymus chinensis<\/jats:italic>\n                    is a perennial grass with remarkable adaptability and forage quality. It is the dominant species on the saline\u2010alkali land in the Songnen Plain in Northeast China, where two ecotypes naturally grow: the grey\u2010green (GG) and yellow\u2010green (YG) genotypes, named after the leaf color. However, the differences in morphology and adaptability between the GG and YG ecotypes are not elucidated. In this study, we investigated and compared GG and YG ecotypes' cuticular wax and its composition. Furthermore, the difference in drought tolerance between the leaves of the two ecotypes was analyzed. Our results showed that GG plants have stronger drought tolerance owing to an optimal limiting non\u2010stomatal water loss effect than the YG plants, which is associated with their higher proportion of tubular epicuticular wax. The composition of the tubular wax was mainly \u03b2\u2010diketone 14,16\u2010Hentriacontanedione (C\n                    <jats:sub>31<\/jats:sub>\n                    H\n                    <jats:sub>60<\/jats:sub>\n                    O\n                    <jats:sub>2<\/jats:sub>\n                    ), and its biosynthesis may be closely related to the endoplasmic reticulum\u2010localized diketone metabolism type\u2010III polyketide synthase (DMP). Our findings suggest that the increased proportion of \u03b2\u2010diketone epicuticular wax may be a beneficial variant trait for\n                    <jats:styled-content style=\"fixed-case\">\n                      <jats:italic>L. chinensis<\/jats:italic>\n                    <\/jats:styled-content>\n                    to optimally adapt to drought environments.\n                  <\/jats:p>","DOI":"10.1111\/ppl.70496","type":"journal-article","created":{"date-parts":[[2025,9,3]],"date-time":"2025-09-03T03:44:30Z","timestamp":1756871070000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["An Increase in the Proportion of \u03b2\u2010Diketone Epicuticular Wax Is a Beneficial Variant Trait for Drought Tolerance in\n                    <scp>\n                      <i>Leymus chinensis<\/i>\n                    <\/scp>"],"prefix":"10.1111","volume":"177","author":[{"given":"Mengtong","family":"Sun","sequence":"first","affiliation":[{"name":"College of Horticulture and Landscape Architecture Northeast Agricultural University  Harbin China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Guangyue","family":"Tan","sequence":"additional","affiliation":[{"name":"College of Horticulture and Landscape Architecture Northeast Agricultural University  Harbin China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Xuefei","family":"Hu","sequence":"additional","affiliation":[{"name":"College of Horticulture and Landscape Architecture Northeast Agricultural University  Harbin China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jing","family":"Wu","sequence":"additional","affiliation":[{"name":"College of Horticulture and Landscape Architecture Northeast Agricultural University  Harbin 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