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•Infectious plant diseases are caused by living organisms that attack and obtain their nutrition from the plant they infect. •The major plant pathogens responsible for disease development in plants are fungi, bacteria, viruses, and nematodes •The disease cycle describes the interaction of the pathogen with the host . Title: Slide 1
Keywords : Fish diseases, Fungi, Husbandry diseases, Fungal diseases, Fish culture, Aetiology, described as a fungus. fungus called bunt or stinking smut (Tilletia spp.). The potato blight in Ireland and northern Europe, rampant during two suc- cessive seasons (1845-1846 and 1846-1847), was caused by the fungal-like organism Phytophthora infestans.
Earn Free Access Learn More > Upload Documents Refer Your Friends Earn Money Lec 5.ppt – Plant Diseases Caused By Fungi: School Politecnico di Torino; Course Title CIS MISC; Uploaded By actionstudy. Pages 31
Most vegetable diseases are caused by fungi. They damage plants by killing cells and/or causing plant stress. Sources of fungal infections are infected seed, soil, crop debris, nearby crops and weeds. Fungi are spread by wind and water splash, and through the movement of contaminated soil, animals, workers, machinery, tools, seedlings and other
What is white fungus in human body? The white fungus starts on the tongue or in the private parts of the body, turning the tongue white. It then spreads to other tissues, including the lungs, the brain, and the food pipes. White Fungus infection may be caused by lack of immunity or contact with objects that contain infectious moulds, such as water.. “/> viruses attack humans, animals or both; others attack higher plants; and still others attack microorganisms, such as fungi and bacteria. Nearly half of all known viruses attack and cause diseases in plants. One virus may infect one or dozens of different species of plants, and each species of plant is usually
Fungi About 85% of plant diseases are caused by fungi: multi-celled microorganisms that may be seen without a microscope during certain stages of their life cycles. Fungi have no chlorophyll, and their cell walls are composed of chitin and other polysaccharides instead of cellulose, which composes plant cell walls. Many species of fungi can be
CROWN WART – This disease is caused by a fungus of Physoderma species that attacks the stem of the alfalfa plants. It forms white protrusions at the base of the stem of the plant. DECAY – Decomposition of leaves and wood that is caused by fungi is called decay. It attacks living plant tissue and kills the plants.
This pathogen has a very wide host range, including quince (Cydonia oblonga) and other rosaceous plants, such as crabapple (Malus sylvestris), hawthorn (Crataegus aestivalis), pyracantha (Pyracanthaspp.), plum (Prunus domestica), Japanese plum (Prunus salicina), and cotoneaster (Cotoneasterspp.). Disease common name:Fire blight.
important plant diseases in the world are caused by rust fungi. Introduction The rust fungi are obligate parasites of plants from which they obtain nutrients, and on which they reproduce and completetheirlifecycles.Thereareanestimated 7000spe-cies of rust fungi that are parasites of plants from ferns to advanced monocots and dicots.
This is the seventh fact sheet in a series of ten designed to provide an overview of key concepts in plant pathology.Plant pathology is the study of plant disease including the reasons why plants get sick and how to control or manage healthy plants.Collectively, fungi and fungal-like organisms (FLOs) cause more plant diseases than any other group of plant pest with over 8,000 species shown.
Plant diseases 1. PLANT DISEASES Plant disease is an impairment of normal state of a plant that interrupts or modifies its vital functions. A plant disease can also be defined as any problem with the plant that leads to a reduction in yield or appearance. Many plant diseases are caused by pathogens ,disease causing agents are called pathogens. A plant may be said to be diseased, when there is
Plant diseases 1. PLANT DISEASES Plant disease is an impairment of normal state of a plant that interrupts or modifies its vital functions. A plant disease can also be defined as any problem with the plant that leads to a reduction in yield or appearance. Many plant diseases are caused by pathogens ,disease causing agents are called pathogens. A plant may be said to be diseased, when there is
View Lecture 01 – Plant Pathogenic Fungi.pdf from BOT 324 at Oregon State University, Corvallis. Plant Pathogenic Fungi Plant-pathogenic fungi • Roughly 70% of all major crop diseases are caused by

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