{"refrec":{"BRefID":75050,"RR":"<b>Ralph, P.J.; Gademann, R.</b> (2005). Rapid light curves: a powerful tool to assess photosynthetic activity. <i>Aquat. Bot. 82(3)</i>: 222-237. <a href=\"https://dx.doi.org/10.1016/j.aquabot.2005.02.006\" target=\"_blank\">https://dx.doi.org/10.1016/j.aquabot.2005.02.006</a>","BEntID":70727,"PublicFlag":1,"CheckedFlag":1,"wosflag":1,"vabbflag":null,"RefStringPartII":". <i>Aquat. Bot. 82(3)</i>: 222-237. <a href=\"https://dx.doi.org/10.1016/j.aquabot.2005.02.006\" target=\"_blank\">https://dx.doi.org/10.1016/j.aquabot.2005.02.006</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Ralph, P.J.; Gademann, R.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Ralph, P.J.; Gademann, R.","Englishabstract":"Rapid light curves provide detailed information on the saturation characteristics of electron transport, as well as the overall photosynthetic performance of a plant. Rapid light curves were collected from samples of <i>Zostera marina</i> grown under low and high-light conditions (50 and 300 μmol photons m<sup>−2</sup> s<sup>−1</sup>) and the distinctive patterns of RLC parameters are discussed, in terms of differential sink capacity and PSII reaction centre closure. Derived cardinal points of a rapid light curve (<i>α</i>, <i>E</i><sub>k</sub> and rETR<sub>max</sub>) describe the photosynthetic capacity of a seagrass leaf, its light adaptation state and its capacity to tolerate short-term changes in light. The shapes of the corresponding <i>F</i> and <i>F</i><sup>′</sup><sub>m</sub> curves also provide information on the development of the <i>trans</i>-thylakoid proton gradient and thermal energy dissipation. Low-light leaves showed limited photosynthetic capacity and reduced activity of non-photochemical quenching pathways, whereas photosynthesis of high light leaves were not limited and showed an elevated level of non-photochemical quenching, possibly associated with xanthophyll cycle activity. Light-dark kinetics are also discussed in relation to relaxation of non-photochemical quenching and its various components. A curve fitting model is recommended based on the double exponential decay function. In this paper, we explain the fundamental aspects of a RLC, describe how it reflects the response to light exposure of a leaf, how to interpret these curves, and how to quantitatively describe and compare RLCs.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Rapid light curves: a powerful tool to assess photosynthetic activity","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2024-12-10 01:33:17.368041","timezone_type":1,"timezone":"+01:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":"seagrass; PAM; RLC; quenching analysis; chlorophyll a fluorescence","OtherDescriptors":null,"Notes":null,"AnaPub":2005,"MonPub":null,"DateUpdate":"2018-05-17","DateCreate":"2005-08-01","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000230570300006","VABBcode":null,"OpenAcc":0,"DOI":"10.1016/j.aquabot.2005.02.006"},"refs":null,"anarec":{"AnaID":75050,"PubliDate":2005,"Pagination":"222-237","XtraPublOfAnaID":null,"ISBN":null,"Volume":"82","Issue":"3","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":42195,"SerRR":"Aquatic Botany. Elsevier Science: Tokyo; Oxford; New York; London; Amsterdam.  ISSN 0304-3770; e-ISSN 1879-1522","StandardTitleSer":"Aquatic Botany","ISSN":"0304-3770","AbbrevSer":"Aquat. 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