Publication

The organic ties of iron: Or the origin and fate of Fe-binding organic ligands

Slagter, H. A., 2018, [Groningen]: Rijksuniversiteit Groningen. 220 p.

Research output: ThesisThesis fully internal (DIV)Academic

APA

Slagter, H. A. (2018). The organic ties of iron: Or the origin and fate of Fe-binding organic ligands. [Groningen]: Rijksuniversiteit Groningen.

Author

Slagter, Hans Arent. / The organic ties of iron : Or the origin and fate of Fe-binding organic ligands. [Groningen] : Rijksuniversiteit Groningen, 2018. 220 p.

Harvard

Slagter, HA 2018, 'The organic ties of iron: Or the origin and fate of Fe-binding organic ligands', Doctor of Philosophy, University of Groningen, [Groningen].

Standard

The organic ties of iron : Or the origin and fate of Fe-binding organic ligands. / Slagter, Hans Arent.

[Groningen] : Rijksuniversiteit Groningen, 2018. 220 p.

Research output: ThesisThesis fully internal (DIV)Academic

Vancouver

Slagter HA. The organic ties of iron: Or the origin and fate of Fe-binding organic ligands. [Groningen]: Rijksuniversiteit Groningen, 2018. 220 p.


BibTeX

@phdthesis{4ee61c0b6fce4dbaa4a685ea40026e11,
title = "The organic ties of iron: Or the origin and fate of Fe-binding organic ligands",
abstract = "Primary production in the oceans depends on, among other nutrients, the presence of iron in the seawater. Iron does not dissolve well in seawater and needs to be bound by a soluble substance to be bioavailable: iron-binding organic ligands. These ligands are a diverse mix of organic substances and relative contributors are understudied. This dissertation aims to gain insight in sources of iron-binding organic ligands and to study the effect of microbial processes through seaborne and laboratory study. We find that in the Mediterranean Sea sources of these ligands are diverse, and sometimes different from the sources of iron. In the Arctic Ocean, iron and organic material from surrounding rivers is transported across the surface. Among which humic substances, bacterial breakdown products known to bind iron, which are an important part of the ligand pool here. This transport is expected to be highly sensitive to climate change which changes the discharge of organic material in river catchments.In laboratory study we find that viral infection of phytoplankton is hampered by low iron concentrations, limiting the effectiveness of nutrient cycling through the viral breakup, or lysis, of phytoplankton cells. We also show that viral lysis increases the concentration of ligands, dependent on the phytoplankton host species. Bacteria are found to modify parts of the ligand pool, and pose a possible loss factor of ligands. Finally, we identify important considerations for methodology, as no approach currently applied is capable of elucidating the composition of the iron-binding organic ligand pool alone.",
author = "Slagter, {Hans Arent}",
year = "2018",
language = "English",
isbn = "978-94-6375-228-2",
publisher = "Rijksuniversiteit Groningen",
school = "University of Groningen",

}

RIS

TY - THES

T1 - The organic ties of iron

T2 - Or the origin and fate of Fe-binding organic ligands

AU - Slagter, Hans Arent

PY - 2018

Y1 - 2018

N2 - Primary production in the oceans depends on, among other nutrients, the presence of iron in the seawater. Iron does not dissolve well in seawater and needs to be bound by a soluble substance to be bioavailable: iron-binding organic ligands. These ligands are a diverse mix of organic substances and relative contributors are understudied. This dissertation aims to gain insight in sources of iron-binding organic ligands and to study the effect of microbial processes through seaborne and laboratory study. We find that in the Mediterranean Sea sources of these ligands are diverse, and sometimes different from the sources of iron. In the Arctic Ocean, iron and organic material from surrounding rivers is transported across the surface. Among which humic substances, bacterial breakdown products known to bind iron, which are an important part of the ligand pool here. This transport is expected to be highly sensitive to climate change which changes the discharge of organic material in river catchments.In laboratory study we find that viral infection of phytoplankton is hampered by low iron concentrations, limiting the effectiveness of nutrient cycling through the viral breakup, or lysis, of phytoplankton cells. We also show that viral lysis increases the concentration of ligands, dependent on the phytoplankton host species. Bacteria are found to modify parts of the ligand pool, and pose a possible loss factor of ligands. Finally, we identify important considerations for methodology, as no approach currently applied is capable of elucidating the composition of the iron-binding organic ligand pool alone.

AB - Primary production in the oceans depends on, among other nutrients, the presence of iron in the seawater. Iron does not dissolve well in seawater and needs to be bound by a soluble substance to be bioavailable: iron-binding organic ligands. These ligands are a diverse mix of organic substances and relative contributors are understudied. This dissertation aims to gain insight in sources of iron-binding organic ligands and to study the effect of microbial processes through seaborne and laboratory study. We find that in the Mediterranean Sea sources of these ligands are diverse, and sometimes different from the sources of iron. In the Arctic Ocean, iron and organic material from surrounding rivers is transported across the surface. Among which humic substances, bacterial breakdown products known to bind iron, which are an important part of the ligand pool here. This transport is expected to be highly sensitive to climate change which changes the discharge of organic material in river catchments.In laboratory study we find that viral infection of phytoplankton is hampered by low iron concentrations, limiting the effectiveness of nutrient cycling through the viral breakup, or lysis, of phytoplankton cells. We also show that viral lysis increases the concentration of ligands, dependent on the phytoplankton host species. Bacteria are found to modify parts of the ligand pool, and pose a possible loss factor of ligands. Finally, we identify important considerations for methodology, as no approach currently applied is capable of elucidating the composition of the iron-binding organic ligand pool alone.

M3 - Thesis fully internal (DIV)

SN - 978-94-6375-228-2

PB - Rijksuniversiteit Groningen

CY - [Groningen]

ER -

ID: 71536311