/CRC AquaDiva /GRADUATE SCHOOL /Doctoral Researchers

Data Portal
PhDs of the integrated Research Training Group AquaDiva


Doctoral Researchers



Michaela Brunzel

Michaela Brunzel


Project: C05
Supervisor: Ulrich S. Schubert


Chair of Organic Chemistry II, Institute of Organic Chemistry and Macromolecular Chemistry,

Friedrich Schiller University Jena

iconp: +49 (0)3641 9-48569

Email

↪ research profile


PhD thesis, working title: "Development and fundamental characterization of a polymer tracer library for subsurface (reactive) environmental transport experiments"




Dinusha Chathurangani

Dinusha Chathurangani Eshvara Arachchige


Project: C03
Supervisors: Kai Uwe Totsche


Chair of Hydrogeology

Institute of Geosciences,

Friedrich Schiller University Jena


iconp +49 (0)3641 9-48743

Email

research profile


PhD thesis, working title: "Biogeochemistry in zones of fluctuating groundwater: Alteration of rock surfaces and interactions with subsurface colloids"






Nicolas Dalla Valle


Project: B02
Supervisors: Markus Reichstein, Thomas Wutzler


Department of Biogeochemical Integration,

Max Planck Institute for Biogeochemistry


iconp +49 (0)3641 576292

Email

research profile


PhD thesis, working title: "Modeling vertical soil organic matter transport"


This study aims to understand the vertical distribution and transport of soil organic matter (SOM) under different land cover (forest vs. grassland) considering the role of short term non-equilibrium processes (bypass flow) or ecosystem distrubances (fire, insect pests). An important task of the work will be the further development of the SOMPROF model (Braakhekke et al. 2011) to accound for the processes mentioned above. The model will be calibrated using data from the Hainich, which will be gathered by several subprojects of the CRC AquaDiva.

 





Gökben Demir


Project: B02
Supervisors: Anke Hildebrandt


Chair of Ecological Modelling, Institute of Geosciences,

Friedrich Schiller University Jena


iconp +49 (0)3641 9-xxxxx

Email

research profile


PhD thesis, working title: "Effect of canopy-induced heterogeneity on water flux patterns below the root zone"




Erik Fäßler

Erik Fäßler


Project: D01
Supervisor: Udo Hahn


JULIE Lab, Departement of Computer Linguistics,

Friedrich Schiller University Jena

iconp +49 (0)3641 9-44324

Email

research profile


PhD thesis, working title: "Semantic search for biodiversity data"


The aim of my work is to facilitate life science applications by enriching scientific text with semantic metadata. These metadata can then be used for a range of applications, including the automatic construction of scientific fact databases, text mining support for scientific work in the fied of biodiversity or in life sciences in general. Eventually, I seek to offer a semantic search engine that leverages the metadata to provide highly relevant information results to scientists who do literature search.




Nawras Ghanem

Nawras Ghanem


Project: A01

Supervisor: Lukas Y. Wick


Department of Environmental Microbiology,

UFZ Leipzig

iconp: +49 (0)3641 57-6219

Email

research profile


PhD thesis, working title: "Phages as vectors and indicators of biological information in the Earth's Critical Zone (PHAGE)"


Bacteriophages (short: phages) are viruses that infect specific host bacteria. In order to trace the hydrological flow and reactive transport of colloidal particles in the Critical Zone (CZ), the eligibility of marine phages as specific markers will be tested. Furthermore, the role of eukaryotic networks, i.e., fungal mycelia is going to be evaluated as a preferential translocation vector for phages and bacteria.




Rola Houhou

Rola Houhou


Project: A03
Supervisors: Jürgen Popp


Chair of Physical Chemistry II

Institute of Physical Chemistry,

Friedrich Schiller University Jena


iconp +49 (0)3641 9-48339

Email

research profile


PhD thesis, working title: "Development of statistical approaches to differentiate between raman spectra of isotopically labeled bacteria"




Swamini Khurana

Swamini Khurana


Project: B04
Supervisors: Martin Thullner


Department of Environmental Microbiology

Working Group Geomicrobial Reactive Transport Systems

UFZ Leipzig


iconp +49 (0)341 2351338

Email

research profile


PhD thesis, working title: "Biogeochemical modeling of dynamic subsurface environments"




Markus Krüger

Markus Krüger


Project: B05
Supervisors: Martina Herrmann


Chair of Aquatic Geomicrobiology, Institute of Biodiversity

Friedrich Schiller University Jena


iconp +49 (0)3641 9-49458

Email

research profile


PhD thesis, working title: "From the forest canopy to the aquifer: The role of microbial processes in the origin and fate of nitrate in the Earth's Critical Zone"




Katharina Reichel

Katharina Lehmann


Project: C03 / C05
Supervisors: Kai Uwe Totsche


Chair of Hydrogeology, Institute of Geosciences,

Friedrich Schiller University Jena


iconp +49 (0)3641 9-48743

Email

research profile


PhD thesis, working title: "Tracking the release, transport, and transformation of soil-borne colloids"


Soil borne colloids (SBC), which encompass organics, mixed phases and biota, are materials that may fuel, stimulate and even trigger the biological activity in the subsurface compartments and the groundwater. Knowledge on the release, transfer and turnover of SBC might thus be key for understanding the biodiversity, ecology and functioning of the subsurface compartments. Also soil type, land use, and the extant geology determine composition and properties of SBC. Single events mobilize SBC that can then be transferred to deeper compartments of the SCZ. The characterization of the composition and properties of SBC by analysis of their chemical and mineralogical patterns provides the basis to trace land management signals and biodiversity patterns through the SCZ.

In all, in my study, 22 suction/tension-controlled lysimeters were installed at 7 monitoring sites for the collection and analysis of soil-borne colloids in the seepage water. We are focused on the seasonal effects in water flux (seepage water) and influence of land use on the mobilization and transport of colloids and organisms which were tracked with regular fortnight lysimeter sampling in depths of 30 cm and 60 cm below surface at different land management site (managed/unmanaged forest, pasture, cropland).




Patrick Lohmann

Patrick Lohmann


Project: A04

Supervisors: Nico Jehmlich


Department of Molecular Systems Biology

UFZ Leipzig


iconp +49 (0) 341 2351352

Email

research profile


PhD thesis, working title: "Elucidation of key functional proteins of microbial nutrient cycles by quantitative metaproteomics"




Johanna Metzger

Johanna Metzger


Project: B02

Supervisor: Anke Hildebrandt


Chair of Ecological Modelling, Institute of Geosciences,

Friedrich Schiller University Jena

iconp: +49 (0)3641 57-6219

Email

research profile


PhD thesis, working title: "Hotspots of soil water movement induced by vegetation canopies"


Investigating water flow in the Hainich forest, I want to find out how vegetation impacts the soil water budged downwards below the root zone.
Forest vegetation channels precipitation water via stemflow and throughfall. Can these patterns be recovered in soil water dynamics? With an extensive soil sensor network, I want to register flow heterogeneities and identify preferential flow lines. Spatial and temporal patterns of soil moisture and below-canopy precipitation distribution are analyzed. By comparison to each other and to open area measurements, I want to explore if strong heterogeneities within forests possibly result in altered ground water recharge.



narr

Anja Narr


Project: A01

Supervisor: Antonis Chatzinotas


Department of Environmental Microbiology,

UFZ Leipzig

iconp: +49 (0)341 235 1371

research profile


PhD thesis, working title: "Phages as vectors and indicators of biological information in the Earth's Critical Zone"


Bacteriophages are viruses that infect specific bacteria and thus have a vast influence on their hosts in terms of mortality, community structure and biogeochemical cycles. Although they represent the most abundant biological entities on earth, research has focused mainly on marine ecosystems neglecting terrestrial habitats. Moreover, the implications of viruses for the genetic landscape of the deep subsurface biosphere in terrestrial ecosystems are still almost terra incognita.
The overall aim of my project is to study (transducing) phages as vectors of the soil bacterial metagenome in the subsurface part of the Earth's Critical Zone. I want in particular to generate an overall inventory of viral communities (morphotype and molecular diversity) in selected field core samples and to investigate the viral functional metagenome using 454 shotgun sequencing. Furthermore I aim at identifying 16S rRNA genes transduced by bacteriophages using 454 pyrosequencing to reveal bacteria participating in transduction-mediated gene transfer in different layers of the Earth's Critical Zone.




ali nawaz

Ali Nawaz


Project: A03

Supervisor: François Buscot


Department of Soil Ecology,

UFZ Halle

iconp: +49 (0)345 558 5219

Email

research profile


PhD thesis, working title: "Links between surface and sub-surface fungal communities along land use gradients"


In the project titled "Towards functional microbial subsurface biodiversity research (A03)", we want to unravel the hidden diversity within the Critical Zone (CZ) in the Hainich groundwater observation transects. Employing a pyrosequencing approach, we will target bacteria, archaea, fungi and protozoans. To evaluate the importance of lithoautotrophy we will use quantitative PCR to estimate the proportion of members harboring genes coding for CO2 fixation within the total groundwater community. The autochthonous carbon transfer from prokaryotes to higher trophic levels will be followed using a stable isotope probing (SIP) approach in aquifer mesocosms.




Krupa Parmar

Krupa Parmar


Project: A01

Supervisor: Antonis Chatzinotas


Department of Environmental Microbiology,

UFZ Leipzig


iconp: +49 (0)341 558 5219

Email

research profile


PhD thesis, working title: "Phages as vectors and indicators of biological information: consequences for microbial communities and functions"




Anne Bachmann

Anne Sieburg


Project: B03

Supervisor: Torsten Frosch


Work Group Fiber Spectroscopic Sensors, Spectroscopy/Imaging Unit, Leibniz Institute of Photonic Technology (IPHT)

iconp: +49 (0) 3641 206 158

Email

research profile


PhD thesis, working title: "Raman gas spectroscopy for environmental monitoring"

 

This study aims to develop innovative cavity-enhanced Raman gas sensors and apply them for biogenic gas sensing. We want to establish new in situ optical sensors capable of continuous and simultaneous measurements of a suite of gases over a wide range of concentrations. A further goal is to combine the Raman spectroscopy with other analytical techniques to enhance the capabilities for monitoring of microbiological metabolism. In such way we can contribute to establish models of gas transport for the interpretation of gas profiles.






Esther Voigt


Project: A05
Supervisors: Björn Rall


Theory in Biodiversity Science

German Centre for Integrative Biodiversity Research (iDiv)
Halle-Jena-Leipzig


iconp +49 (0)341 9733209

Email

research profile


PhD thesis, working title: "Unravelling the complex processes that control the biodiversity and ecosystem functioning of aquifers"




Xin You

Xin You


Project: A01
Supervisors: Lukas Wick


Bioavailability Group

Department of Environmental Microbiology

UFZ Leipzig


iconp +49 (0) 341 2351371

Email

research profile


PhD thesis, working title: "Phages as vectors and indicators of biological information: Subproject phage transport and phage-mycosphere interactions"






N.N.


Project: A03
Supervisors: Jürgen Popp


Chair of Physical Chemistry II

Institute of Physical Chemistry,

Friedrich Schiller University Jena


iconp +49 (0)3641 9-xxxxx

Email

research profile


PhD thesis, working title


coming soon...





N.N.


Project: B03
Supervisors: Torsten Frosch


Work Group Fiber Spectroscopic Sensors, Spectroscopy/Imaging Unit, Leibniz Institute of Photonic Technology (IPHT)


iconp +49 (0)3641 9-xxxxx

Email

research profile


PhD thesis, working title


coming soon...





N.N.


Project: B03
Supervisors: Torsten Frosch


Work Group Fiber Spectroscopic Sensors, Spectroscopy/Imaging Unit, Leibniz Institute of Photonic Technology (IPHT)


iconp +49 (0)3641 9-xxxxx

Email

research profile


PhD thesis, working title


coming soon...





Associated Doctoral Researchers



Simon Benk

Simon Benk


Project: A02
Supervisors: Gerd Gleixner


Department of Biogeochemical Processes, Max-Planck-Institute for Biogeochemistry


iconp +49 (0)3641 576131

Email

research profile


PhD thesis, working title: "Ecosystem influence on dissolved organic matter composition"




Su Ding

Su Ding


Project: A02
Supervisors: Gerd Gleixner


Department of Biogeochemical Processes, Max-Planck-Institute for Biogeochemistry


iconp +49 (0)176 79895871

Email

research profile


PhD thesis, working title: "Carbon sources of microbial communities in pristine aquifers"




Patricia Geesink

Patricia Geesink


Project: A03
Supervisors: Kirsten Küsel


Chair of Aquatic Geomicrobiology, Institute of Biodiversity

Friedrich Schiller University Jena


iconp +49 (0)3641 9-49463

Email

research profile


PhD thesis, working title: "Interactions and metabolic potential of groundwater microorganisms"




Carsten Simon

Carsten Simon


Project: A02
Supervisors: Gerd Gleixner


Department of Biogeochemical Processes, Max-Planck-Institute for Biogeochemistry


iconp +49 (0)3641 576132

Email

research profile


PhD thesis, working title: "Identification of ecosystem-specific marker compounds"




Katharina Stolze

Katharina Stolze


Project: C03
Supervisors: Kai Uwe Totsche


Department of Biogeochemical Processes, Max-Planck-Institute for Biogeochemistry


iconp +49 (0)3641 9-48639

Email

research profile


PhD thesis, working title: "Role of biopores for fluid flow and matter transport from topsoil upon (extreme) weather events"




Constantinos Xenophontos

Constantinos Xenophontos


Project: A03
Supervisors: Kirsten Küsel


Chair of Aquatic Geomicrobiology, Institute of Biodiversity

Friedrich Schiller University Jena


iconp +49 (0)3641 9-48339

Email

research profile


PhD thesis, working title: "Testing ecological theories with microbial communities"