{"refrec":{"BRefID":436701,"RR":"<b>Theirlynck, T.; Staat, L.; Servania, D.; Engelen, A.H.; van Tussenbroek, B.I.; Muyzer, G.; Visser, P.M.; Amaral-Zettler, L.</b> (2025). Nutrient‐driven growth and microbiome shifts in the brown alga <i>Sargassum fluitans</i>III. <i>J. Phycol. 64(4)</i>: 933-950. <a href=\"https://dx.doi.org/10.1111/jpy.70045\" target=\"_blank\">https://dx.doi.org/10.1111/jpy.70045</a>","BEntID":434531,"PublicFlag":1,"CheckedFlag":0,"wosflag":1,"vabbflag":0,"RefStringPartII":". <i>J. Phycol. 64(4)</i>: 933-950. <a href=\"https://dx.doi.org/10.1111/jpy.70045\" target=\"_blank\">https://dx.doi.org/10.1111/jpy.70045</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":0,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Theirlynck, T.; Staat, L.; Servania, D.; Engelen, A.H.; van Tussenbroek, B.I.; Muyzer, G.; Visser, P.M.; Amaral-Zettler, L.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Theirlynck, T. <i>et al.</i>","Englishabstract":"<span style=\"background-color:rgb(255,255,255);color:rgb(0,0,0);\">Since 2011, holopelagic </span><i>Sargassum</i><span style=\"background-color:rgb(255,255,255);color:rgb(0,0,0);\"> has been accumulating in a region of the tropical Atlantic now referred to as the Great Atlantic </span><i>Sargassum</i><span style=\"background-color:rgb(255,255,255);color:rgb(0,0,0);\"> Belt (GASB). Among the hypothesized contributors to these accumulations are the increased inputs of nitrogen (N) and phosphorus (P) in the tropical Atlantic Ocean. Little is known about the effects of N and P additions on </span><i>Sargassum</i><span style=\"background-color:rgb(255,255,255);color:rgb(0,0,0);\"> physiology and its microbiome. We studied the effects of N, P, and NP additions on the growth, photosynthetic efficiency, and microbiome composition of </span><i>Sargassum fluitans</i><span style=\"background-color:rgb(255,255,255);color:rgb(0,0,0);\"> III in a six-day experiment on the Caribbean Island of Curaçao. </span><i>Sargassum fluitans</i><span style=\"background-color:rgb(255,255,255);color:rgb(0,0,0);\"> III took up most nitrate and phosphate within 3 days with respective uptake rates of 0.343 and 0.0399 μmol · g</span><sup>−1</sup><span style=\"background-color:rgb(255,255,255);color:rgb(0,0,0);\"> DW · h</span><sup>−1</sup><span style=\"background-color:rgb(255,255,255);color:rgb(0,0,0);\">. </span><i>F</i><span style=\"background-color:rgb(255,255,255);color:rgb(0,0,0);\">v/</span><i>F</i><span style=\"background-color:rgb(255,255,255);color:rgb(0,0,0);\">m decreased in the control after 6 days but remained constant in nutrient treatments. Growth rates did not differ significantly among treatments, but a trend in higher growth rates in the NP treatment was discerned, suggesting a possible NP co-limitation. The relative abundance of epiphytic Cyanobacteria such as </span><i>Schizothrix</i><span style=\"background-color:rgb(255,255,255);color:rgb(0,0,0);\"> and bacteria such as </span><i>Lentilitoribacter</i><span style=\"background-color:rgb(255,255,255);color:rgb(0,0,0);\"> increased under N and P addition, while heterotrophic </span><i>Rhodobacteraceae</i><span style=\"background-color:rgb(255,255,255);color:rgb(0,0,0);\"> decreased in abundance. Microeukaryotic communities responded with varying changes in alpha diversity, possibly steered by increased photosynthesis and growth of </span><i>S. fluitans</i><span style=\"background-color:rgb(255,255,255);color:rgb(0,0,0);\"> III or bacterial interactions. The physiological response to N and P and rapid change of the microbiome demonstrates that the studied </span><i>S. fluitans</i><span style=\"background-color:rgb(255,255,255);color:rgb(0,0,0);\"> III can quickly benefit from increased nutrient concentrations, which might contribute to its growth success in the GASB.</span>","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Nutrient‐driven growth and microbiome shifts in the brown alga <i>Sargassum fluitans</i>III","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2026-06-10 01:33:04.121609","timezone_type":1,"timezone":"+02:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":"brown alga; growth; microbiome; nutrient limitation; photosynthesis","OtherDescriptors":null,"Notes":null,"AnaPub":2025,"MonPub":null,"DateUpdate":"2025-12-17","DateCreate":"2025-12-17","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":null,"VABBcode":null,"OpenAcc":1,"DOI":"10.1111/jpy.70045"},"refs":null,"anarec":{"AnaID":436701,"PubliDate":2025,"Pagination":"933-950","XtraPublOfAnaID":null,"ISBN":null,"Volume":"64","Issue":"4","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":43251,"SerRR":"Journal of Phycology. 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