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Plant diseases are 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 . [ 2 ]
This category includes economically significant plant diseases and the organisms that cause them including, fungi, bacteria, protists and viruses. For more information on plant pathology see phytopathology. For insects that transmit plant pathogens see Insect vectors of plant pathogens.
Plant disease resistance is the ability of a plant to prevent and terminate infections from plant pathogens. Structures that help plants prevent pathogens from entering are the cuticular layer, cell walls, and stomata guard cells.
Plants can show many signs or physical evidence of fungal, viral or bacterial infections. This can range from rusts or molds to not showing anything at all when a pathogen invades the plant (occurs in some viral diseases in plants). [9] Symptoms which are visible effects of diseases on the plant consist of changes in color, shape or function. [9]
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This is a list of articles that are lists of plant diseases A. List of foliage plant diseases (Acanthaceae) ...
Bacterial diseases; Bacterial leaf blight and stalk rot: Pseudomonas avenae subsp. avenae. Bacterial leaf spot: Xanthomonas campestris pv.holcicola. Bacterial stalk rot: Enterobacter dissolvens = Erwinia dissolvens
This category contains articles on fungal plant diseases and pathogens. Fungi portal If an article added to this category is also a stub , add {{plant-disease-stub}} to the bottom of the article.