{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,6]],"date-time":"2026-10-06T12:39:39Z","timestamp":1791290379252,"version":"4.3.0"},"reference-count":108,"publisher":"Wiley","issue":"3","license":[{"start":{"date-parts":[[2021,9,9]],"date-time":"2021-09-09T00:00:00Z","timestamp":1631145600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Physiologia Plantarum"],"published-print":{"date-parts":[[2021,11]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>Flavonoids are plant specialized metabolites that consist of one oxygenated and two aromatic rings. Different flavonoids are grouped according to the oxidation degree of the carbon rings; they can later be modified by glycosylations, hydroxylations, acylations, methylations, or prenylations. These modifications generate a wide collection of different molecules which have various functions in plants. All flavonoids absorb in the UV wavelengths, they mostly accumulate in the epidermis of plant cells and their biosynthesis is generally activated after UV exposure. Therefore, they have been assumed to protect plants against exposure to radiation in this range. Some flavonoids also absorb in other wavelengths, for example anthocyanins, which absorb light in the visible part of the solar spectrum. Besides, some flavonoids show antioxidant properties, that is, they act as scavengers of reactive oxygen species that could be produced after high fluence UV exposure. However, to date most reports were based on in vitro studies, and there is very little in vivo evidence of how their roles are carried out. In this review we first summarize the biosynthetic pathway of flavonoids and their characteristics, and we describe recent advances on the investigation of the role of three of the most abundant flavonoids: flavonols, flavones, and anthocyanins, protecting plants against UV exposure and high light exposure. We also present examples of how using UV\u2010B supplementation to increase flavonoid content, is possible to improve plant nutritional and pharmaceutical values.<\/jats:p>","DOI":"10.1111\/ppl.13543","type":"journal-article","created":{"date-parts":[[2021,8,28]],"date-time":"2021-08-28T14:41:03Z","timestamp":1630161663000},"page":"736-749","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":363,"title":["Recent advances on the roles of flavonoids as plant protective molecules after <scp>UV<\/scp> and high light exposure"],"prefix":"10.1111","volume":"173","author":[{"given":"Mar\u00eda Lorena Falcone","family":"Ferreyra","sequence":"first","affiliation":[{"name":"Centro de Estudios Fotosint\u00e9ticos y Bioqu\u00edmicos (CEFOBI), Facultad de Ciencias Bioqu\u00edmicas y Farmac\u00e9uticas Universidad Nacional de Rosario  Rosario 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