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Ceratocystis Paradoxa
''Ceratocystis paradoxa'' or Black Rot of Pineapple is a plant pathogen that is a fungus, part of the phylum Ascomycota. It is characterized as the teleomorph or sexual reproduction stage of infection. This stage contains ascocarps, or sacs/fruiting bodies, which contain the sexually produced inoculating ascospores. These are the structures which are used primarily to survive long periods of time or overwinter to prepare for the next growing season of its host. Unfortunately, the sexual stage is not often seen in the natural field but instead the anamorph, or asexual stage is more commonly seen. This asexual stage name is ''Thielaviopsis paradoxa'' and is the common cause of Black rot or stem-end rot of its hosts. Hosts and symptoms One of the most well-known diseases caused by ''Ceratocystis paradoxa'' is Black rot or stem-end rot of pineapple, but it can also infect tropical fruit plants such as banana and coconuts as well as sugarcane. The pathogen infects the fruits through wo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fungal Plant Pathogens And Diseases
A fungus ( : fungi or funguses) is any member of the group of eukaryotic organisms that includes microorganisms such as yeasts and molds, as well as the more familiar mushrooms. These organisms are classified as a kingdom, separately from the other eukaryotic kingdoms, which by one traditional classification include Plantae, Animalia, Protozoa, and Chromista. A characteristic that places fungi in a different kingdom from plants, bacteria, and some protists is chitin in their cell walls. Fungi, like animals, are heterotrophs; they acquire their food by absorbing dissolved molecules, typically by secreting digestive enzymes into their environment. Fungi do not photosynthesize. Growth is their means of mobility, except for spores (a few of which are flagellated), which may travel through the air or water. Fungi are the principal decomposers in ecological systems. These and other differences place fungi in a single group of related organisms, named the ''Eumycota'' (''true f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Microascales
The Microascales are an order of fungi A fungus ( : fungi or funguses) is any member of the group of eukaryotic organisms that includes microorganisms such as yeasts and molds, as well as the more familiar mushrooms. These organisms are classified as a kingdom, separately from ... in the class Sordariomycetes, subclass Hypocreomycetidae. This is a relatively small order of mostly saprobic fungi that live in soil, rotting vegetation and feces, dung. Some species are plant pathogens, such as ''Ceratocystis fimbriata'', transmitted by beetles to living trees and causing Theobroma cacao, cacao wilt and many other economically important diseases. Species in the genus ''Pseudallescheria'' (family Microascaceae) are pathogenic to humans The order was circumscribed in 1980. Description The Microascales are characterized by a lack of stroma (animal tissue), stroma, black perithecial ascomata with long necks or rarely with cleistothecial ascomata that lack paraphyses. They have ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
