{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,26]],"date-time":"2026-02-26T20:21:33Z","timestamp":1772137293736,"version":"3.50.1"},"reference-count":29,"publisher":"CSIRO Publishing","issue":"3","license":[{"start":{"date-parts":[[2025,11,18]],"date-time":"2025-11-18T00:00:00Z","timestamp":1763424000000},"content-version":"vor","delay-in-days":271,"URL":"https:\/\/doi.org\/10.1071\/journalslicense"}],"funder":[{"name":"State assignment of Ministry of Science and Higher Education of the Russian Federation","award":["122042700044-6"],"award-info":[{"award-number":["122042700044-6"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2025,3,17]]},"abstract":"<jats:title\/>\n                  <jats:p>Non-photochemical quenching and limitations of the photosystem I and photosystem II activities were studied in C3-plant barley and C4-plant maize. Plants were exposed to prolonged heat stress under high and low air humidity. Both species decreased non-photochemical quenching at 37\u201342\u00b0C, which increased at 46\u00b0C. A decrease of photosystem II activity at 46\u00b0C in lower air humidity was achieved through different mechanisms. In barley, photosystem II was downregulated by the increase of non-photochemical quenching. In maize, photosystem II was downregulated by the increase of acceptor-side limitation. Analysis of transients also revealed differences between species. One second after a light induction, limitations flashes at the acceptor sides of both photosystems. Elevating the temperature decreased these flashes; acceptor-side limitations of both photosystems decreased proportional to each other. In maize, the size of flashes slightly diminished at 37\u00b0C and decreased more at 42\u201346\u00b0C. In barley, the size of flashes greatly decreased at 37\u00b0C and gradually returned to the control level under higher temperatures. Around photosystem II, the flash was quenched by a burst of non-photochemical quenching. In barley, the transient peaks of acceptor-side limitation and non-photochemical quenching were very similar at any temperature. This was not observed in maize.<\/jats:p>","DOI":"10.1071\/fp24305","type":"journal-article","created":{"date-parts":[[2025,2,19]],"date-time":"2025-02-19T17:25:03Z","timestamp":1739985903000},"source":"Crossref","is-referenced-by-count":0,"title":["Differences between barley and maize revealed in limitations of photosystems I and II under high temperature and low air humidity"],"prefix":"10.1071","volume":"52","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-1474-0213","authenticated-orcid":true,"given":"Eugene A.","family":"Lysenko","sequence":"first","affiliation":[{"name":"AInstitute of Plant Physiology, Russian Academy of Sciences, ul. 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