{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,23]],"date-time":"2026-10-23T20:04:32Z","timestamp":1792785872139,"version":"4.5.0"},"reference-count":45,"publisher":"Oxford University Press (OUP)","license":[{"start":{"date-parts":[[2026,8,21]],"date-time":"2026-08-21T00:00:00Z","timestamp":1787270400000},"content-version":"am","delay-in-days":0,"URL":"https:\/\/academic.oup.com\/pages\/standard-publication-reuse-rights"}],"funder":[{"name":"Department of Botany, Ravenshaw University, Department of Science and Technology, Government of India","award":["SR\/FST\/LS-II\/2018\/219 C"],"award-info":[{"award-number":["SR\/FST\/LS-II\/2018\/219 C"]}]},{"name":"Higher Education Department, Government of Odisha","award":["HE-PTC-WB 02017"],"award-info":[{"award-number":["HE-PTC-WB 02017"]}]},{"name":"Higher Education Department, Government of Odisha","award":["23M0023687"],"award-info":[{"award-number":["23M0023687"]}]},{"name":"Higher Education Department, Government of Odisha"},{"name":"Council of Scientific and Industrial Research","award":["09\/1036[13215]\/2022-EMR-I"],"award-info":[{"award-number":["09\/1036[13215]\/2022-EMR-I"]}],"id":[{"id":"https:\/\/ror.org\/021wm7p51","id-type":"ROR","asserted-by":"crossref"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>Thiamethoxam is a widely used neonicotinoid known for its effect on soil microbial community. Synechocystis sp. PCC 6803 is a soil cyanobacterium and contributes organic carbon to soil microbial community through active photosynthesis, aiding synergistic soil microbial activity. However, not many studies have been made to decipher the effect of thiamethoxam on the photosynthetic electron transport of soil microalgae and cyanobacteria. We measured the effect of thiamethoxam (0\u2013225\u2009\u03bcM) on the growth, physiology, and photochemical performance of Synechocystis sp. PCC 6803 during 24\u2009hr of exposure with an aim to explore its effect on photoelectron transport. Thiamethoxam caused a decrease in the growth and pigment content of Synechocystis, with more of an effect on chlorophyll a and carotenoids than on phycobiliproteins. A concentration-triggered increase in lipid peroxidation and photosynthetic pigment fluorescence was also observed. The OJIP fluorescence transient showed a continuous rise of the O-J phase with thiamethoxam concentration. The performance-indicating parameters \u03c6P0 and \u03c6E0 decreased, whereas the stress-indicating parameters VJ, M0, and \u03c6D0 increased with thiamethoxam treatment. The reaction center functions (Abs\/RC, TR0\/RC, and ET0\/RC) indicated the increase of inactive reaction center with thiamethoxam treatment. The data agree with those obtained by atrazine treatment and indicated that the insecticide imposed a Photosystem II (PS II) herbicide\u2013like effect on the acceptor side of PS II of Synechocystis. The inhibition of PS\u00a0I reduction and decreased PS\u00a0I functions support our conclusion. Our observation will enable researchers to evaluate the on-site effects of thiamethoxam on crop plants.<\/jats:p>","DOI":"10.1093\/etojnl\/vgag231","type":"journal-article","created":{"date-parts":[[2026,8,22]],"date-time":"2026-08-22T02:57:08Z","timestamp":1787367428000},"source":"Crossref","is-referenced-by-count":0,"title":["Thiamethoxam causes a herbicide-like acceptor limitation of Photosystem II of the cyanobacterium\n                    <i>Synechocystis<\/i>\n                    sp. PCC 6803"],"prefix":"10.1093","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-0180-6033","authenticated-orcid":false,"given":"Smrutirekha","family":"Mishra","sequence":"first","affiliation":[{"name":"Department of Botany, Ravenshaw University , Cuttack,","place":["India"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8988-1232","authenticated-orcid":false,"given":"Barsha Bhushan","family":"Swain","sequence":"additional","affiliation":[{"name":"Department of Botany, Ravenshaw University , Cuttack,","place":["India"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0006-5110-4581","authenticated-orcid":false,"given":"Swagati","family":"Priyadarsini","sequence":"additional","affiliation":[{"name":"Department of Botany, Ravenshaw University , Cuttack,","place":["India"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5971-1008","authenticated-orcid":false,"given":"Totan","family":"Adak","sequence":"additional","affiliation":[{"name":"Crop Protection Division, ICAR\u2013Central Rice Research Institute , Cuttack,","place":["India"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7435-7983","authenticated-orcid":false,"given":"Pradipta Kumar","family":"Mohapatra","sequence":"additional","affiliation":[{"name":"Department of Botany, Ravenshaw University , Cuttack,","place":["India"]}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"286","published-online":{"date-parts":[[2026,8,21]]},"reference":[{"key":"2026092414181729600_vgag231-B1","doi-asserted-by":"publisher","first-page":"199","DOI":"10.1093\/jxb\/ers323","article-title":"Role of phenanthrene\u2013cadmium brassinosteroids in alleviation co-contamination-induced of 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