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Black rot, caused by the bacterium Xanthomonas campestris pv. campestris ( Xcc ), is considered the most important and most destructive disease of crucifers, infecting all cultivated varieties of brassicas worldwide. [ 1][ 2] This disease was first described by botanist and entomologist Harrison Garman in Lexington, Kentucky, US in 1889. [ 3]
For the whitefly-to-plant life cycle, there is a 12-hour window, after the insect picks up the AbMV, during which the virus cannot be transmitted. [3] This virus is transmitted to plants that the silverleaf whitefly feeds on after this time period. [3] Another mode for the AbMV to spread is manual transmission.
Rust (fungus) Rusts are fungal plant pathogens of the order Pucciniales (previously known as Uredinales) causing plant fungal diseases. An estimated 168 rust genera and approximately 7,000 species, more than half of which belong to the genus Puccinia, are currently accepted. [3] Rust fungi are highly specialized plant pathogens with several ...
Most plants can live with the disease based on the severity. Older plants, especially trees, will have an increased chance of survival while younger plants have a higher susceptibility of death caused by the disease. If a plant has a pre-existing disease, the chance of being infected and dying from the V. longisporum increases.
Plant disease. 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]
Pseudomonas syringae is a rod-shaped, Gram-negative bacterium with polar flagella. As a plant pathogen, it can infect a wide range of species, and exists as over 50 different pathovars, [2] all of which are available to researchers from international culture collections such as the NCPPB, ICMP, and others. Pseudomonas syringae is a member of ...
Plant disease epidemiology is the study of disease in plant populations. Much like diseases of humans and other animals, plant diseases occur due to pathogens such as bacteria, viruses, fungi, oomycetes, nematodes, phytoplasmas, protozoa, and parasitic plants. [1] Plant disease epidemiologists strive for an understanding of the cause and ...
Life cycle of P. brassicae. Plasmodiophora brassicae is a soilborne organism that is best known for its high economic impact on Brassica oil and vegetable crops. [1] It infects 30 different cruciferous plants, which consists of up to 16 crop species, 9 ornamentals, and 5 weeds. [2] The fungus on those plants causes a disease referred to as ...