Humboldt-Universität zu Berlin - Ecology

Humboldt-Universität zu Berlin | Institut für Biologie | Ecology | Student projects | Developing a biochemical fingerprint technique for nematode identification

Developing a biochemical fingerprint technique for nematode identification

source: ecology

 

 

 

 

 

 

 

Background 

 

Most fingerprinting methods in soil ecology are used to investigate soil microorganisms. The main applications are to provide community structure, microbial diversity or metabolic processes. Microbial fingerprinting methods include biochemical analysis of phospholipid fatty acids (PLFA) as well as genetic approaches such as denaturing gradient gel electrophoresis (DGGE).

In comparison to the well-developed methods for microbial community profiling, fingerprinting techniques for the soil fauna have lagged behind. Nematodes can serve as a model here, as recently relationships between lipid metabolism and taxonomic position were uncovered. By integration of diverse nematode taxa as well as entire fatty acid pattern such correlations can be developed into a fingerprinting tool linking nematode phylogeny and ecological function.

 

Aims 

 

  1. Construct a lipid library with nematode species differing in ecological traits (feeding, parasite type, life strategy).
  2. Develop a method for species classification using fatty acid profiles.
  3. Combine statistical analyses of pattern similarity or uniqueness to improve the delineation method

 

Project timescale 

 

This project can be adapted to any time of year and would produce valuable data.

 

Suitability 

 

  • Bachelor thesis (Aim 1)
  • Study projects for MSc (Aims 1 and 2)
  • Master thesis (Aims 1, 2, and 3)