{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,4]],"date-time":"2026-09-04T06:12:36Z","timestamp":1788502356108,"version":"build-2803163510"},"reference-count":35,"publisher":"Frontiers Media SA","license":[{"start":{"date-parts":[[2026,9,4]],"date-time":"2026-09-04T00:00:00Z","timestamp":1788480000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["frontiersin.org"],"crossmark-restriction":true},"short-container-title":["Front. Plant Sci."],"abstract":"<jats:sec>\n                    <jats:title>Introduction<\/jats:title>\n                    <jats:p>Tobacco oiliness index is a key chemical trait that significantly influences tobacco quality.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>To elucidate the cytological features and key metabolites underlying varying relative oiliness indices, fresh Yunyan 87 tobacco leaves were analyzed by microscopic and metabolomic profiling.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>The results indicated that leaves with high oiliness exhibited a tighter tissue architecture, characterized by closely packed mesophyll cells and reduced intercellular spaces; conversely, leaves with low oiliness showed a looser arrangement. The levels of cembratriene-diols, methyl nonanoate, and methyl palmitate in trichome exudates were markedly elevated in high-oil leaves compared with those in low-oil leaves. High-oil leaves exhibited a significantly greater abundance of starch grains and osmiophilic granules. In contrast, low-oil leaves displayed localized chloroplast swelling and mild mitochondrial vacuolation, suggesting insufficient or imbalanced accumulation of intracellular storage substances. The concurrent elevation of oleic acid, a signature lipid metabolite, exhibited a strong positive correlation with relative oiliness index and holds promise as a reliable biomarker for identifying and selecting high-oil tobacco leaves.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Discussion<\/jats:title>\n                    <jats:p>These findings offer a theoretical reference for the targeted breeding and agronomic management of high-oil tobacco varieties.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.3389\/fpls.2026.1911537","type":"journal-article","created":{"date-parts":[[2026,9,4]],"date-time":"2026-09-04T05:29:10Z","timestamp":1788499750000},"update-policy":"https:\/\/doi.org\/10.3389\/crossmark-policy","source":"Crossref","is-referenced-by-count":0,"title":["Cytological basis and key metabolite profiling of fresh tobacco leaves with different oiliness indices in Yunyan 87"],"prefix":"10.3389","volume":"17","author":[{"given":"Xianfeng","family":"Hu","sequence":"first","affiliation":[{"name":"College of Agriculture, Anshun University","place":["Anshun, Guizhou, China"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Wei","family":"Xu","sequence":"additional","affiliation":[{"name":"Raw Material Supply Center, China Tobacco Guizhou Industrial Co., Ltd.","place":["Guiyang, Guizhou, China"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hao","family":"Chen","sequence":"additional","affiliation":[{"name":"Technology Center, Guizhou Provincial Tobacco Company Anshun Branch","place":["Anshun, Guizhou, China"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Shouhui","family":"Pan","sequence":"additional","affiliation":[{"name":"Technology Center, Guizhou Provincial Tobacco Company Anshun Branch","place":["Anshun, Guizhou, China"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yuan","family":"Xue","sequence":"additional","affiliation":[{"name":"Technology Center, Guizhou Provincial Tobacco Company Anshun Branch","place":["Anshun, Guizhou, China"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Liyuan","family":"Zhang","sequence":"additional","affiliation":[{"name":"Raw Material Supply Center, China Tobacco Guizhou Industrial Co., Ltd.","place":["Guiyang, Guizhou, China"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yubo","family":"Zhang","sequence":"additional","affiliation":[{"name":"College of Agriculture, Anshun University","place":["Anshun, Guizhou, China"]}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1965","published-online":{"date-parts":[[2026,9,4]]},"reference":[{"key":"B1","doi-asserted-by":"publisher","DOI":"10.1016\/j.envres.2024.118203","article-title":"Recent progress on tobacco wastes-derived adsorbents for the remediation of aquatic pollutants: A review","volume":"247","author":"Ahmed","year":"2024","journal-title":"Environ. 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