{"refrec":{"BRefID":100448,"RR":"<b>Miao, A.-J.; Wang, W.-X.</b> (2006). Cadmium toxicity to two marine phytoplankton under different nutrient conditions. <i>Aquat. Toxicol. 78(2)</i>: 114-126. <a href=\"https://dx.doi.org/10.1016/j.aquatox.2006.02.008\" target=\"_blank\">https://dx.doi.org/10.1016/j.aquatox.2006.02.008</a>","BEntID":95676,"PublicFlag":1,"CheckedFlag":1,"wosflag":1,"vabbflag":0,"RefStringPartII":". <i>Aquat. Toxicol. 78(2)</i>: 114-126. <a href=\"https://dx.doi.org/10.1016/j.aquatox.2006.02.008\" target=\"_blank\">https://dx.doi.org/10.1016/j.aquatox.2006.02.008</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Miao, A.-J.; Wang, W.-X.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Miao, A.-J.; Wang, W.-X.","Englishabstract":"Cd accumulation and toxicity in two marine phytoplankton (diatom <i>Thalassiosira weissflogii</i> and dinoflagellate <i>Prorocentrum minimum</i>) under different nutrient conditions (nutrient-enriched, N- and P-starved conditions) were examined in this study. Strong interactions between the nutrients and Cd uptake by the two algal species were found. Cd accumulation as well as N and P starvation themselves inhibited the assimilation of N, P, and Si by the phytoplankton. Conversely, N starvation strongly inhibited Cd accumulation but no influence was observed under P starvation. However, the Cd accumulation difference between nutrient-enriched and N-starved cells was smaller when [Cd<sup>2+</sup>] was increased in the medium, indicating that net Cd accumulation was less dependent on the N-containing ligands at high-Cd levels. As for the subcellular distribution of the accumulated Cd, most was distributed in the insoluble fraction of <i>T. weissflogii</i> while it was evenly distributed in the soluble and insoluble fractions of <i>P. minimum</i> at low-Cd levels. A small percentage of cellular Cd (<15%) was adsorbed on the cell surface for both algae at the lowest [Cd<sup>2+</sup>], which increased when the [Cd<sup>2+</sup>] increased. Cd toxicity in phytoplankton was quantified as depression of growth and maximal photosynthetic system II quantum yield, and was correlated with the [Cd<sup>2+</sup>], intracellular Cd concentration, and Cd concentrations in the cell-surface-adsorbed, soluble, and insoluble fractions. According to the estimated median inhibition concentration (IC50) based on the different types of Cd concentration, the toxicity difference among the different nutrient-conditioned cells was the smallest when the Cd concentration in the soluble fraction was used, suggesting that it may be the best predictor of Cd toxicity under different nutrient conditions.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Cadmium toxicity to two marine phytoplankton under different nutrient conditions","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2026-06-14 01:31:12.969118","timezone_type":1,"timezone":"+02:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":"phytoplankton; trace metal; accumulation; subcellular distribution;toxicity prediction","OtherDescriptors":null,"Notes":null,"AnaPub":2006,"MonPub":null,"DateUpdate":"2020-10-19","DateCreate":"2006-07-06","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000238110100002","VABBcode":null,"OpenAcc":0,"DOI":"10.1016/j.aquatox.2006.02.008"},"refs":null,"anarec":{"AnaID":100448,"PubliDate":2006,"Pagination":"114-126","XtraPublOfAnaID":null,"ISBN":null,"Volume":"78","Issue":"2","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":42203,"SerRR":"Aquatic Toxicology. 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