Bioavailability of different iron amounts and speciations and EDTA-iron complexes for Emiliania huxleyi (Prymnesiophyceae)

Basit Öğe Kaydı
dc.contributor.authorIsik, Oya
dc.contributor.authorSayin, Selin
dc.contributor.authorHizarci, Leyla
dc.contributor.authorOzturk, Murat
dc.date.accessioned2024-09-18T20:16:49Z
dc.date.available2024-09-18T20:16:49Z
dc.date.issued2007
dc.departmentHatay Mustafa Kemal Üniversitesien_US
dc.description.abstractThe purpose of this study was to determine the effects of daily and/or initial additions of varying Fe(II) and Fe(III) amounts, in combination with or without EDTA, on Emiliania huxleyi cultures. Pertaining to this specific aim, the growth rate (mu), cell abundance (X10(4) cells L-1), total chi a concentration ([tg L-1), chi a quota (pg cell-'), chi a:C ratio, Fe content (amol cell(-1)), Fe:C and Fe:chl a (pmol:ng) ratios, as well as pH values were observed. During the experiment, iron-free seawater was obtained by using a Chelex-100 column for iron-cleaning. The results revealed that the cell densities, growth rates, chlorophyll a concentrations, Fe contents, the calculated Fe:C ratios, and pH values were higher in the cultures containing 5000 nM Fe(III) EDTA than those of 5 nM Fe(III) and Fe(II). The growth rate, cell abundance, and total chi a concentration, on the other hand, were higher with daily additions of 5 nM Fe(II) instead of 5 nM Fe(III). Furthermore, cellular Fe quota was higher in the cultures with Fe(III). Cell abundance, chlorophyll a concentration and Fe:Chl a ratio were similar in 5 nMFe(III)+ EDTA cultures (initially or daily added), possibly be due to the negative effects of EDTA on both. The growth rate, cell abundance, total chi a concentration, and Fe quota were higher in cultures with inorganic Fe(II) and Fe(IH) contents, compared to those treated with EDTA containing Fe(II) and Fe(III). E. huxleyi cells seemed not to have used EDTA-bound iron, but their own released ligand to bind iron. Unexpectedly, while cellular iron content of cultures daily supplemented with Fe(II) was low, they exhibited the highest chi a content. The cell-chl a level was higher in daily supplemented cultures, with regard to those supported only initially with iron, evidencing the importance of continuous iron supply in chi a synthesis.en_US
dc.identifier.endpage838en_US
dc.identifier.issn1018-4619
dc.identifier.issn1610-2304
dc.identifier.issue7en_US
dc.identifier.scopus2-s2.0-34547777850en_US
dc.identifier.scopusqualityN/Aen_US
dc.identifier.startpage832en_US
dc.identifier.urihttps://hdl.handle.net/20.500.12483/9762
dc.identifier.volume16en_US
dc.identifier.wosWOS:000248571800020en_US
dc.identifier.wosqualityQ4en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherParlar Scientific Publications (P S P)en_US
dc.relation.ispartofFresenius Environmental Bulletinen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectEmiliania huxleyien_US
dc.subjectiron speciationen_US
dc.subjectEDTAen_US
dc.titleBioavailability of different iron amounts and speciations and EDTA-iron complexes for Emiliania huxleyi (Prymnesiophyceae)en_US
dc.typeArticleen_US

Dosyalar

Orijinal paket
Listeleniyor 1 - 1 / 1
[ N/A ]
İsim:
Tam Metin / Full Text
Boyut:
391.57 KB
Biçim:
Adobe Portable Document Format
İndir

Koleksiyon

WoS İndeksli Yayınlar Koleksiyonu
Scopus İndeksli Yayınlar Koleksiyonu