Moss Phsycomitrella patens as a model organism in researches of plant – pathogen interaction

Verčević, Nina (2014) Moss Phsycomitrella patens as a model organism in researches of plant – pathogen interaction. Bachelor's thesis, Faculty of Science > Department of Biology.

Language: Croatian

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In biological research we often use model organisms. Moss P. patens is considered as a new model organism in research on plant – pathogen interactions. Purpose of this seminar is to describe the interactions between moss and certain pathogens (fungus B. cinerea, oomycetes P. debaryanum and P. irregulare, bacteria P. c. carotovorum and Tomato spotted wilt virus), to compare the process of infection of various pathogens and defense mechanisms that are activated in moss after infection. It has been discovered that these pathogens can infect moss and induce defense mechanisms in moss. Defense mechanisms are often induced by signal molecules such as SA and JA. Different pathogens interfere with different signal molecules in moss P. patens. Early response to infection by fungus and oomycetes, which aims to prevent the spread of fungus and oomycetes, is incorporation of phenolic compounds in the mosses cell wall. Incorporation of phenolic compounds is not enough efficient to stop infection. Another method of defense against fungus, bacteria and oomycetes is programmed cell death in moss which is characterized by cell death and characteristic cell changes. Infection with fungus and Oomycetes causes the production of ROS. Moss P. Patens is subject for Tomato spotted wilt virus infection. Two viral proteins were found in moss tissue after inoculation of virus. The discovery of the protein assumed that viral genome was replicated and transcribed which can direct assembly of new viral particels.

Item Type: Thesis (Bachelor's thesis)
Supervisor: Rusak, Gordana
Date: 2014
Number of Pages: 12
Subjects: NATURAL SCIENCES > Biology
Divisions: Faculty of Science > Department of Biology
Depositing User: Silvana Šehić
Date Deposited: 21 Nov 2014 11:33
Last Modified: 21 Nov 2014 11:33

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