What are the Harmful Activities ?
Question Submitted By :: Botany
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there are many harmful activities of bacteria:-
1.causes diseases in humans.
2.causes diseases in animals.
3.causes diseses in plants.
4.spoilage of food-if food is not cooked properly,then
microorganisms will grow &produces toxic substances,that
results in food spoilage.eg.salmonella
5.food poisoning-health peoblems caused due to the intake
of spoiled food. John Mathew
damage to timber,spoilage of food,damage of paper,it will
cause diseases in plants. Vilambika
Most of fungal activities are harmful symoiotically
(1)Plant diseased:-These are occurred by bacteria, viruses
and cellworms. They destroy field crop, Fruits, Vegetables
(2)Destruction of timber products:-Most of Basidiomycetes
causes decay of heart wood of standing trees
(3)Number of articles:-e.g. clothing tentage, binoculars,
feathers goods, plastics, cameras, photographic films, radio
(a) Textiles:- These are spoiled by fungi which cause rots
e.g. alternaria, penicillium, mucor etc.
(b) paper:- These are spoiled by fungi which cause rots e.g.
alternaria, penicillium, mucor etc.
(c) Jute:- It is often destroyed by certain fungi e.g.
(d) Leather:- It is destroyed by aspergillus niger.
(e) Rubber:- It is spoiled by aspergillus and pennicilium.
(f) Paint :- Some fungi like rhizopus and torula grow on paints
(g) Petroleum fuels :- Desulphovibro is responsible for
spoiling petroleum fuels.
4. Food spoilage :- Yeast, peniclium a re chief cause of
(a) Milk cream are spoiled by sp. Of Mucor pennicillium etc.
(b) Fruit and canning industry :- Oranges are destroyed by
pennicilium digitatuns. Bread is spoiled by mucor, meat is
spoiled by mucor.
5. Number of animal diseases are caused by fungi :-
(a) Bakstomsis caused by blastomyces dermitidis.
(b) Coccidiomysis it is disease of Central Nervous system.
(c) Cryptoccosis it is disease of Central Nervous system.
Amanit is poisonous mushroom. It is sometimes mistaken as
edible one. Guest