Question

Explain the phenomenon of infection in plants

Answer 1

Plant pathology (also phytopathology) is the scientific study of diseases in plants caused by pathogens (infectious organisms) and environmental conditions (physiological factors).[1] Organisms that cause infectious disease include fungi, oomycetes, bacteria, viruses, viroids, virus-like organisms, phytoplasmas, protozoa, nematodes and parasitic plants. Not included are ectoparasites like insects, mites, vertebrate, or other pests that affect plant health by consumption of plant tissues. Plant pathology also involves the study of pathogen identification, disease etiology, disease cycles, economic impact, plant disease epidemiology, plant disease resistance, how plant diseases affect humans and animals, pathosystem genetics, and management of plant diseases.

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Answer 2

Hey Dear,

● Infection in plants -

• Infection is the invasion and multiplication of microorganisms such as bacteria, viruses, and parasites that are not normally present within the plants.
• Usual infectious agents include - bacteria, protozoans, fungi, viruses, viriods, parasitic plants, etc.

# Common infectious diseases in plants -

1. Fungal infections - white blister, anthracnose, clubroot, botrytis rots
2. Viral infections - mosaic viruses, bud blight, leaf-curl virus, barley yello-dwarf
3. Bacterial infections - bacyetial wilt, fire blight, aster yellows, rots

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