Fungal Pathogens
Ascomycota and Basidomycetes are the main classes of fungi that are responsible for causing diseases. Fungi produce spores that can resist extreme environments and are capable of feeding saprotrophically. There are two types of fungal pathogens:
- Biotrophic: These colonize the plant and obtain nutrients from it to flourish themselves.
- Necrotrophic: In order to get nutrients from the host, these diseases infect and kill the host.
Oomycetes
These are fungal-like pathogens due to their ability to progress disease in the same way as fungus does. Oomycetes have the ability to inhibit plant defenses by secreting effector proteins. They are basically responsible for root rot diseases.
Examples Of Fungal Agents
The following table depicts various pathogens of Kingdom Fungi:
|
Class Of Fungi |
Name |
Disease Caused |
|---|---|---|
|
Ascomycetes |
Fusarium spp |
Fusarium wilt |
|
Ascomycetes |
Thielaviopsis spp. |
Black root rot |
|
Ascomycetes |
Magnaporthe grisea |
Rice blast |
|
Ascomycetes |
Sclerotinia sclerotiorum |
Cottony Rot |
|
Basidomycetes |
Ustilago spp. |
Barley smut |
|
Basidomycetes |
Phaskospora pachyrhizi |
Soyabean rust |
|
Basidomycetes |
Puccinia spp. |
Grass rusts |
|
Oomycetes |
Phytophthora spp. |
Potato blight diseases |
|
Oomycetes |
Phytomyxea (Slime mould) |
Clubroot in cabbage and Powdery scab in Potatotes. |
Plant Pathology
Plant pathology is the study of illnesses brought on by plant pathogens, also called phytopathogens. Nematodes, bacteria, fungi, viruses, and protozoa are some of these pathogens. Phytopathologists are scientists who study plant pathology. Plant diseases can be caused by various pathogens, including both prokaryotic and eukaryotic organisms.
In this article, we will study the Definition and Principles of Plant Pathology, Types of plant pathogens, Fungal pathogens, Bacterial pathogens, Viral Pathogens, nematode pathogens, protozoa, and algae pathogens, Epidemiology of plant diseases, Prevention and Control of Protozoan Diseases and Importance of Plant Pathology.
Table of Content
- Definition of Plant Pathology
- Principles of Plant Pathology
- Types of Plant Pathogens
- Fungal Pathogens
- Bacterial Pathogens
- Viruses and Virus like Pathogens
- Nematodes Pathogens
- Protozoa and Algae Pathogens
- Epidemiology of Plant Diseases
- Prevention and Control of Protozoan Diseases
- Importance of Plant Pathology