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Pineapple Black Rot
Pineapple black rot, also known as butt rot, base rot, or white blister, is a disease caused by '' Ceratocystis paradoxa'' (teleomorph) (''Thielaviopsis paradoxa'': anamorph). ''C. paradoxa'' also causes disease in a variety of other tropical plants such as banana, coconut, and sugarcane making it a somewhat dangerous pathogen. Pineapple black rot is the most common and well-known post-harvest disease of the pineapple fruit and is responsible for serious losses in the fresh pineapple fruit world industry. The pathogen is a polyphagous wound parasite and gains entry into the fruit via wounds sustained during and after harvest. The disease only shows up in fresh fruit because the time from harvest to processing it too short for infection occur. Infection can also occur out in the field, but it is not nearly as common as post-harvest infection. Hosts & symptoms Fruit that is bruised and/or damage and is kept in unsanitary and high humidity conditions are especially susceptible to thi ...
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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 ...
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Thielaviopsis 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 ...
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Pineapple
The pineapple (''Ananas comosus'') is a tropical plant with an edible fruit; it is the most economically significant plant in the family Bromeliaceae. The pineapple is indigenous to South America, where it has been cultivated for many centuries. The introduction of the pineapple to Europe in the 17th century made it a significant cultural icon of luxury. Since the 1820s, pineapple has been commercially grown in greenhouses and many tropical plantations. Pineapples grow as a small shrub; the individual flowers of the unpollinated plant fuse to form a multiple fruit. The plant is normally propagated from the offset produced at the top of the fruit, or from a side shoot, and typically matures within a year. Botany The pineapple is a herbaceous perennial, which grows to tall, although sometimes it can be taller. The plant has a short, stocky stem with tough, waxy leaves. When creating its fruit, it usually produces up to 200 flowers, although some large-fruited cultivars can ...
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Chlamydospore
A chlamydospore is the thick-walled large resting spore of several kinds of fungi, including Ascomycota such as '' Candida'', Basidiomycota such as '' Panus'', and various Mortierellales species. It is the life-stage which survives in unfavourable conditions, such as dry or hot seasons. '' Fusarium oxysporum'' which causes the plant disease Fusarium wilt is one which forms chlamydospores in response to stresses like nutrient depletion. Mycelia of the pathogen can survive in this manner and germinate in favorable conditions. Chlamydospores are usually dark-coloured, spherical, and have a smooth (non-ornamented) surface. They are multicellular, with cells connected by pores in the septae between cells. Chlamydospores are a result of asexual reproduction (in which case they are conidia called chlamydoconidia) or sexual reproduction (rare). Teliospores are special kind of chlamydospores formed by rusts and smuts. File:Candida pseudohyphae, chlamydospores, blastospores.png, Pseud ...
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Butt Rot
Butt rot is a disease of plants, mostly trees, caused by fungi. The fungus attacks the moist, poorly protected undersurface of tree trunk's thickest part (the "butt" above the root, as opposed to "top"), where the end of the stem makes contact with the soil. It may affect the roots as well, causing a disease known as root rot. It then moves up into the interior of the plant, producing a roughly conical column of dead, rotted plant matter, up to one and a half meters long in severe cases. Such an infection is likely to impair the transport properties of the xylem tissue found at the center of the stem. It also weakens the stem and makes the plant more vulnerable to toppling. One particularly virulent species of fungus associated with butt rot is '' Serpula himantioides''. See also * '' Ganoderma zonatum'' * ''Phaeolus schweinitzii ''Phaeolus schweinitzii'', commonly known as velvet-top fungus, dyer's polypore, dyer's mazegill, or pine dye polypore, is a fungal plant pat ...
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