{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,24]],"date-time":"2026-09-24T10:42:43Z","timestamp":1790246563511,"version":"4.1.0"},"reference-count":0,"publisher":"National Academy of Sciences","issue":"13","content-domain":{"domain":["www.pnas.org"],"crossmark-restriction":true},"short-container-title":["Proc. Natl. Acad. Sci. U.S.A."],"published-print":{"date-parts":[[1995,6,20]]},"abstract":"<jats:p>The response of the maize catalase genes (Cat1, Cat2, and Cat3) to salicylic acid (SA) was examined at two distinct developmental stages: embryogenesis and germination. A unique, germination-related differential response of each maize catalase gene to various doses of SA was observed. During late embryogenesis, total catalase activity in scutella increased dramatically with 1 mM SA treatment. The accumulation of Cat2 transcript and CAT-2 isozyme protein provided the major contribution to the observed increase in total catalase activity. This increase was paralleled by the enhanced growth of germinated embryos at that stage. In a CAT-2 null mutant line, a full compensation of total catalase activity by the CAT-1 isozyme was observed in the presence of SA. This suggests that catalase is important for maintenance of normal cellular processes under stress conditions. SA at 1 mM, which enhances growth of precociously germinated embryos, appeared to inhibit seed germination at 1 day after inhibition. Furthermore, Cat2 transcript accumulation was inhibited at this stage. SA is probably not a direct signal for the induction of the catalase genes. Other signals, possibly germination-related regulator(s), might be responsible for the induction of the catalase genes. The effect of SA on the activity of purified catalase protein was also examined.<\/jats:p>","DOI":"10.1073\/pnas.92.13.5930","type":"journal-article","created":{"date-parts":[[2006,5,31]],"date-time":"2006-05-31T09:13:54Z","timestamp":1149066834000},"page":"5930-5934","update-policy":"https:\/\/doi.org\/10.1073\/pnas.cm10313","source":"Crossref","is-referenced-by-count":129,"title":["Developmentally related responses of maize catalase genes to salicylic acid."],"prefix":"10.1073","volume":"92","author":[{"given":"L","family":"Guan","sequence":"first","affiliation":[{"name":"Department of Genetics, North Carolina State University, Raleigh 27695, USA."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"J G","family":"Scandalios","sequence":"additional","affiliation":[{"name":"Department of Genetics, North Carolina State University, Raleigh 27695, USA."}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"341","published-online":{"date-parts":[[1995,6,20]]},"container-title":["Proceedings of the National Academy of Sciences"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/pnas.org\/doi\/pdf\/10.1073\/pnas.92.13.5930","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2022,4,13]],"date-time":"2022-04-13T14:03:47Z","timestamp":1649858627000},"score":1,"resource":{"primary":{"URL":"https:\/\/pnas.org\/doi\/full\/10.1073\/pnas.92.13.5930"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[1995,6,20]]},"references-count":0,"journal-issue":{"issue":"13","published-print":{"date-parts":[[1995,6,20]]}},"alternative-id":["10.1073\/pnas.92.13.5930"],"URL":"https:\/\/doi.org\/10.1073\/pnas.92.13.5930","relation":{},"ISSN":["0027-8424","1091-6490"],"issn-type":[{"value":"0027-8424","type":"print"},{"value":"1091-6490","type":"electronic"}],"subject":[],"published":{"date-parts":[[1995,6,20]]},"assertion":[{"value":"1995-06-20","order":2,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}]}}