{"refrec":{"BRefID":255643,"RR":"<b>Zhu, M.; Tillmann, U.</b> (2012). Nutrient starvation effects on the allelochemical potency of <i>Alexandrium tamarense</i> (Dinophyceae). <i>Mar. Biol. (Berl.) 159(7)</i>: 1449-1459. <a href=\"http://dx.doi.org/10.1007/s00227-012-1924-7\" target=\"_blank\">http://dx.doi.org/10.1007/s00227-012-1924-7</a>","BEntID":247652,"PublicFlag":1,"CheckedFlag":1,"wosflag":1,"vabbflag":null,"RefStringPartII":". <i>Mar. Biol. (Berl.) 159(7)</i>: 1449-1459. <a href=\"http://dx.doi.org/10.1007/s00227-012-1924-7\" target=\"_blank\">http://dx.doi.org/10.1007/s00227-012-1924-7</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Zhu, M.; Tillmann, U.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Zhu, M.; Tillmann, U.","Englishabstract":"Batch culture experiments were performed to investigate potential effects of nutrient starvation on the allelochemical potency of the toxic dinoflagellate Alexandrium tamarense. Triplicate cultures with reduced nitrate (-N) or phosphate (-P) seed were compared to nutrient-replete (+N+P) cultures. Total depletion of the dissolved inorganic limiting nutrient, reduced cell quotas, changed mass ratios of C/N/P and reduced cell yield clearly indicate that treatment cultures at stationary phase were starved by either N or P, whereas growth cessation of +N+P cultures was probably due to carbon limitation and/or a direct effect of high pH. Pulsed addition of the limiting nutrient allowed -N and -P cultures to resume growth. Lytic activity of A. tamarense as quantified by a Rhodomonas bioassay was generally high (EC50 around 100 cells mL-1) and was only slightly modulated by growth phase and/or nutrient starvation. Lytic activity per cell increased with time in both +N+P and -P cultures but not -N cultures. P-starved stationary-phase cells were slightly more lytic than +N+P cultures, but this difference may be due to increased cell size and/or accumulation of extracellular compounds. In conclusion, only slight changes but no general and major increase in lytic activity in response to nutrient starvation was observed.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Nutrient starvation effects on the allelochemical potency of <i>Alexandrium tamarense</i> (Dinophyceae)","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2026-06-15 01:32:49.768986","timezone_type":1,"timezone":"+02:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":null,"OtherDescriptors":null,"Notes":null,"AnaPub":2012,"MonPub":null,"DateUpdate":"2018-02-13","DateCreate":"2016-05-10","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000305528400006","VABBcode":null,"OpenAcc":0,"DOI":"10.1007/s00227-012-1924-7"},"refs":null,"anarec":{"AnaID":255643,"PubliDate":2012,"Pagination":"1449-1459","XtraPublOfAnaID":null,"ISBN":null,"Volume":"159","Issue":"7","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":43352,"SerRR":"Marine Biology: International Journal on Life in Oceans and Coastal Waters. Springer: Heidelberg; Berlin.  ISSN 0025-3162; e-ISSN 1432-1793","StandardTitleSer":"Marine Biology: International Journal on Life in Oceans and Coastal Waters","ISSN":"0025-3162","AbbrevSer":"Mar. Biol. 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