M.Agr. 0023 Interactions between Plants and Phytopathogens and Viruses ( 6 C/ 4 SWS)

Prof. Dr. P. Karlovsky
Department of Crop Sciences, Division of Molecular Phytopathology and Mycotoxin Research
Division of Plant Pathology and Plant Protection

English and German

Type of instruction/contact hours
Lecture / 28h, practical / 28h

Frequency (WS/SS) and duration
WS , one semester

Prof. P. Karlowsky, , Division of Molecular Phytopathology and Mycotoxin Research,
Dr. B. Koopmann, Division of Plant Pathology and Plant Protection,
JunProf. M.Varrelmann, Department of Crop Science, Division of Plant Virology

Content and objectives
Different aspects of interactions between plants and phytopathogenic fungi, bacteria, and viruses.
The infection by fungi, bacteria and viruses is described (spore germination, invasion of the host plant and spreading of pathogens, virus replication and distribution). Types of plant resistance, i.e. preformed and induced resistance, their importance and possibilities of inactivation through the pathogens as
well as induced and systemically acquired resistance(SAR) are presented.
The pathosystem Agrobacterium tumefaciens/ dicotyle plants is described
and discussed. The gen for gen hypothesis and its experimental proof will be presented and discussed and well known genes of resistance will be

Phytoalexine extraction in oilsed rape and analysis by HPLC or TLC bioassay.

Students will acquire knowledge of complex interactions between plants and pathogens and will be able to formulate scientific questions and to critically evaluate methods used.

Exam requirements:
Profound knowledge of plant disease infection and development caused by fungi, viruses and bacteria, mechanisms of host invasion. Plant defense structures and reactions (recognition of the pathogen, signal transduction, preformed and induced mechanisms of resistance, gene for gene hypothesis).

Oral examination, 20 minutes

Entrance requirements

Number of students