What are examples of plant diseases?
Common plant diseases include fungal diseases, bacterial diseases, and viral diseases. Fungal Diseases: Black spot, Rust, Botrytis blight, Powdery mildew. Bacterial Diseases: Black rot, Bacterial canker, Soft rot, Leaf spot wilt, Blight. Plant diseases are diseases in plants caused by pathogens (infectious organisms) and environmental conditions (physiological factors). Organisms that cause infectious disease include fungi, oomycetes, bacteria, viruses, viroids, virus-like organisms, phytoplasmas, protozoa, nematodes and parasitic plants.Plant pathogenic bacteria cause many different kinds of symptoms that include galls and overgrowths, wilts, leaf spots, specks and blights, soft rots, as well as scabs and cankers.Chlorosis: Yellowing of normally green tissue due to lack of chlorophyll. Necrosis: The death of plant tissue, which results in dark brown or black spots. Wilting: The drooping of leaves or stems due to water loss. Galls: Abnormal swellings or growths on stems, leaves, or roots.
What are plant diseases?
Plant disease is defined as a condition in plants characterized by the disruption of normal physiological processes, often resulting from the interaction with pathogens that trigger immune responses, including various signals and phytohormones that regulate programmed cell death and innate immunity. Common plant diseases can be divided into these three categories: fungal, bacterial, and viral. Fungal diseases are caused by fungus. Fungus is defined as any group of spore-producing organisms that feed on organic matter.A plant disease is a dynamic process where a living or nonliving entity interferes with the normal functions of a plant over a period of time.Fungal diseases are the most common infection in plants. There are some characteristic symptoms, or observable effects of the disease, in plants. Fungi infections can be recognized by symptoms like spots on plant leaves, yellowing of leaves, and birds-eye spots on berries.Fungi, bacteria, nematodes, viruses, and parasitic plants can infect and damage various plant parts through their different life cycles and modes of transmission.
What are the 12 diseases?
Specifically, the chapters are devoted to the study of cholera, smallpox, bubonic plaque, syphilis, tuberculosis, malaria, fever, influenza, and AIDS. To do this, you’ll be researching one disease of your choosing that falls into one of the six categories listed in the lesson, acute, chronic, primary, secondary, local, or systemic.
What are the 4 main diseases?
There are four main types of disease: infectious diseases, deficiency diseases, hereditary diseases (including both genetic and non-genetic hereditary diseases), and physiological diseases. Diseases can also be classified in other ways, such as communicable versus non-communicable diseases. A disease is a condition that deteriorates the normal functioning of the cells, tissues, and organs. Diseases are often thought of as medical conditions that are characterized by their signs and symptoms.There are four main types of disease: infectious diseases, deficiency diseases, hereditary diseases (including both genetic and non-genetic hereditary diseases), and physiological diseases.The most widely used classifications of disease are (1) topographic, by bodily region or system, (2) anatomic, by organ or tissue, (3) physiological, by function or effect, (4) pathological, by the nature of the disease process, (5) etiologic (causal), (6) juristic, by speed of advent of death, (7) epidemiological, and .