Characteristics of Pathogens

Characteristics of Pathogens

1. what are pathogens?

   • Pathogens are infectious agents that can cause disease or injury in the body of an animal, a human being or a plant,these can be fungus,bacteriums,etc.
     • Types of pathogens:
       • There are 4 types of Pathogens, Which are: - Bacterium -Fungus -Protozoos - Virus.
         • Characteristics of each pathogen:
           • Bacterium:
             • Phytopathogenic bacteria are unicellular, microscopic and do not produce spores. They cannot produce their energy and depend on a host plant for their sustenance. There are five main genera: Agrobacterium, Corynebacterium, Erwinia, Pseudomonas and Xanthomonas. Most diseases in plants are caused by the last three.etc.
           • Fungus:
             • Fungi are simple filamentous Unicellular Organisms. They have no chlorophyll and depend on a host plant for their food. They are larger than bacteria and are more easily identified. Some of the structures they produce can be seen with the naked eye and serve in their identification.
           • Protozoos:
             • Protozoa are single-celled organisms or organisms composed of a group of cells that are identical to each other. When the concept is written with an initial capital letter (Protozoa), it refers to the taxon that these living beings form.etc.
           • Virus:
             • viruses are the smallest organisms known as plant pathogens. They are very simple in structure and usually consist of a strand of DNA (deoxyribonucleic acid) or RNA (ribonucleic acid) with a protein coating.