{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,26]],"date-time":"2026-10-26T15:38:20Z","timestamp":1793029100473,"version":"4.5.0"},"reference-count":90,"publisher":"Frontiers Media SA","license":[{"start":{"date-parts":[[2026,1,7]],"date-time":"2026-01-07T00:00:00Z","timestamp":1767744000000},"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:p>\n                    Cotton seeds are a major source of high-quality proteins and edible oil, but their utilization is limited due to gossypol toxicity to humans and animals. For better use of cotton as food and feed, several glandless cotton cultivars have been developed, which are susceptible to various biotic stresses. However, their resistance to abiotic stresses, i.e., heavy metals, has rarely been studied. In the current study, the effect of different doses of chromium (Cr)\u20140, 10, 50, and 100 \u03bcM\u2014on the physiological, anatomical, and molecular aspects of cotton was investigated. Genotypic variation exists in the response of cotton to Cr stress. Current results revealed that Cr caused inhibition in leaf biomass and ultrastructure damage, showing large intercellular spaces, thick cell walls, distorted nucleus and chloroplast, and a ruptured nuclear membrane. Cr affected the biochemical system and resulted in the reduction of net photosynthesis rate by 69.7%, intercellular CO\n                    <jats:sub>2<\/jats:sub>\n                    by 84%, and stomatal conductance by 68%. Thiobarbituric acid-reactive substances and H\n                    <jats:sub>2<\/jats:sub>\n                    O\n                    <jats:sub>2<\/jats:sub>\n                    increased with increasing Cr concentration, with relatively higher levels in glanded cotton. The expression of genes (\n                    <jats:italic>GhSOD<\/jats:italic>\n                    ,\n                    <jats:italic>GhPOD<\/jats:italic>\n                    ,\n                    <jats:italic>GhAPX<\/jats:italic>\n                    ,\n                    <jats:italic>GhCAT<\/jats:italic>\n                    ) encoding antioxidant enzymes in the leaves was increased, helping to maintain the activity of antioxidant compounds. According to the results, it was observed that the antioxidant activity of GhSOD, upregulated 2.5-fold at 100 \u03bcM of Cr, plays a key role in mitigating Cr-induced oxidative stress. This study revealed the response mechanism of Cr stress in glanded and glandless cotton that might perform different mechanisms to cope with Cr toxicity.\n                  <\/jats:p>","DOI":"10.3389\/fpls.2025.1715493","type":"journal-article","created":{"date-parts":[[2026,1,7]],"date-time":"2026-01-07T06:52:33Z","timestamp":1767768753000},"update-policy":"https:\/\/doi.org\/10.3389\/crossmark-policy","source":"Crossref","is-referenced-by-count":0,"title":["Physiological, anatomical, and molecular responses of glanded and glandless cotton to chromium exposure"],"prefix":"10.3389","volume":"16","author":[{"given":"Samrana","family":"Samrana","sequence":"first","affiliation":[{"name":"College of Agriculture and Biotechnology, Zhejiang University","place":["Hangzhou, Zhejiang, China"]},{"name":"Department of Botany, University of Swabi","place":["Swabi, Khyber Pakhtunkhwa, Pakistan"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Abid","family":"Ali","sequence":"additional","affiliation":[{"name":"College of Agriculture and Biotechnology, Zhejiang University","place":["Hangzhou, Zhejiang, China"]},{"name":"Department of Horticulture, Faculty of Chemical and Life Sciences, Abdul Wali Khan University Mardan","place":["Mardan, Khyber Pakhtunkhwa, Pakistan"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sayed","family":"Hussain","sequence":"additional","affiliation":[{"name":"Department of Horticulture, Faculty of Chemical and Life Sciences, Abdul Wali Khan University Mardan","place":["Mardan, Khyber Pakhtunkhwa, Pakistan"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hamid","family":"Ali","sequence":"additional","affiliation":[{"name":"Department of Bioscience, Comsats University","place":["Islamabad, Pakistan"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Uzair","family":"Muhammad","sequence":"additional","affiliation":[{"name":"College of Agriculture and Biotechnology, Zhejiang University","place":["Hangzhou, Zhejiang, China"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kasim Sakran","family":"Abass","sequence":"additional","affiliation":[{"name":"College of Veterinary Medicine Department of Physiology, Biochemistry and Pharmacology, University of Kirkuk","place":["Kirkuk, Iraq"]}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1965","published-online":{"date-parts":[[2026,1,7]]},"reference":[{"key":"B1","doi-asserted-by":"publisher","first-page":"121","DOI":"10.1016\/S0076-6879(84)05016-3","article-title":"Catalase in vitro","volume":"105","author":"Aebi","year":"1984","journal-title":"Methods Enzymol."},{"key":"B2","doi-asserted-by":"publisher","first-page":"10601","DOI":"10.1007\/s11356-015-4271-7","article-title":"Fulvic acid mediates chromium (Cr) tolerance in wheat (Triticum aestivum L.) through lowering of Cr uptake and improved antioxidant defense system","volume":"22","author":"Ali","year":"2015","journal-title":"Environ. 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