|
Taphrina Pruni
''Taphrina pruni'' is a fungal plant pathogen of blackthorn (''Prunus spinosa'') that causes the pocket or bladder plum gall, a chemically induced distortion of the fruit (sloes), producing swollen on one side, otherwise deformed and flattened fruit gall without a stone. The twigs on infected plants may also be deformed with small strap-shaped leaves.Redfern, Page 249 Hosts ''Taphrina pruni'' produces a distinctive tongue-like growth, similar to other closely related species such as '' Taphrina alni'' on alder (''Alnus glutinosa'') and '' Taphrina padi'' on bird cherry '' Prunus padus''. The growth is the distorted fruit and not a fungus in its entirety. ''Taphrina pruni'' is also found on bird cherry ('' Prunus padus''), almond ('' Prunus amygdalus''), peach and nectarine (''Prunus persica''). The Mirabelle or Greengage varieties of ''Prunus domestica'' may be more resistant. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plant Pathogen
Plant pathology (also phytopathology) is the scientific study of diseases in plants caused by pathogens (infectious organisms) and environmental conditions (physiological factors). Organisms that cause infectious disease include fungi, oomycetes, bacteria, viruses, viroids, virus-like organisms, phytoplasmas, protozoa, nematodes and parasitic plants. Not included are ectoparasites like insects, mites, vertebrate, or other pests that affect plant health by eating plant tissues. Plant pathology also involves the study of pathogen identification, disease etiology, disease cycles, economic impact, plant disease epidemiology, plant disease resistance, how plant diseases affect humans and animals, pathosystem genetics, and management of plant diseases. Overview Control of plant diseases is crucial to the reliable production of food, and it provides significant problems in agricultural use of land, water, fuel and other inputs. Plants in both natural and cultivated populat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blackthorn Thicket, Eglinton
''Prunus spinosa'', called blackthorn or sloe, is a species of flowering plant in the rose family Rosaceae. The species is native to Europe, western Asia, and regionally in northwest Africa. It is locally naturalized in New Zealand, Tasmania, and the Pacific Northwest and New England regions of the United States. The fruits are used to make sloe gin in Britain and patxaran in Spain. The wood is used to make walking sticks, including the Irish shillelagh. Description ''Prunus spinosa'' is a large deciduous shrub or small tree growing to tall, with blackish bark and dense, stiff, spiny branches. The leaves are oval, long and broad, with a serrated margin. The flowers are about in diameter, with five creamy-white petals; they are produced shortly before the leaves in early spring, and are hermaphroditic, and insect-pollinated. The fruit, called a "sloe", is a drupe in diameter, black with a purple-blue waxy bloom, ripening in autumn and traditionally harvested – at l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Galls
Galls (from the Latin , 'oak-apple') or ''cecidia'' (from the Greek , anything gushing out) are a kind of swelling growth on the external tissues of plants, fungi, or animals. Plant galls are abnormal outgrowths of plant tissues, similar to benign tumors or warts in animals. They can be caused by various parasites, from viruses, fungi and bacteria, to other plants, insects and mites. Plant galls are often highly organized structures so that the cause of the gall can often be determined without the actual agent being identified. This applies particularly to some insect and mite plant galls. The study of plant galls is known as cecidology. In human pathology, a gall is a raised sore on the skin, usually caused by chafing or rubbing. Causes of plant galls Insects and mites Insect galls are the highly distinctive plant structures formed by some herbivorous insects as their own microhabitats. They are plant tissue which is controlled by the insect. Galls act as both the habitat a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Taphrinomycetes
The Taphrinomycetes are a class of ascomycete fungi belonging to the subdivision Taphrinomycotina. It includes the single order Taphrinales, which includes 2 families, 8 genera and 140 species In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate s .... References Fungus classes Taxa described in 1997 {{Ascomycetes-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Taphrina Pruni In Prunus Padus
''Taphrina'' is a fungal genus within the Ascomycota that causes leaf and catkin curl diseases and witch's brooms of certain flowering plants. One of the more commonly observed species causes peach leaf curl. ''Taphrina'' typically grow as yeasts during one phase of their life cycles, then infect plant tissues in which typical hyphae are formed, and ultimately they form a naked layer of asci on the deformed, often brightly pigmented surfaces of their hosts. No discrete fruit body is formed outside of the gall-like or blister-like tissues of the hosts. The asci form a layer lacking paraphyses, and they lack croziers. The ascospores frequently bud into multiple yeast cells within the asci. Phylogenetically, ''Taphrina'' is a member of a basal group within the Ascomycota, and type genus for the subphylum Taphrinomycotina, the class Taphrinomycetes, and order Taphrinales. Species * ''Taphrina alni'' (Berk. & Broome) Gjaerum * ''Taphrina aurea'' (Pers.) Fr. * ''Taphrina betulina'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blackthorn Gall - Pocket Plum, Taphrina Pruni
''Prunus spinosa'', called blackthorn or sloe, is a species of flowering plant in the rose family Rosaceae. The species is native to Europe, western Asia, and regionally in northwest Africa. It is locally naturalized in New Zealand, Tasmania, and the Pacific Northwest and New England regions of the United States. The fruits are used to make sloe gin in Britain and patxaran in Spain. The wood is used to make walking sticks, including the Irish shillelagh. Description ''Prunus spinosa'' is a large deciduous shrub or small tree growing to tall, with blackish bark and dense, stiff, spiny branches. The leaves are oval, long and broad, with a serrated margin. The flowers are about in diameter, with five creamy-white petals; they are produced shortly before the leaves in early spring, and are hermaphroditic, and insect-pollinated. The fruit, called a "sloe", is a drupe in diameter, black with a purple-blue waxy bloom, ripening in autumn and traditionally harvested – at l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Witch's Broom
Witch's broom or witches' broom is a deformity in a woody plant, typically a tree, where the natural structure of the plant is changed. A dense mass of shoots grows from a single point, with the resulting structure resembling a broom or a bird's nest. It is sometimes caused by pathogens. Diseases with symptoms of witches' broom, caused by phytoplasmas or basidiomycetes, are economically important in a number of crop plants, including the cocoa tree ''Theobroma cacao'', jujube (''Ziziphus jujuba'') and the timber tree ''Melia azedarach''. Causes A tree's characteristic shape, or habit, is in part the product of auxins, hormones which control the growth of secondary apices. The growth of an offshoot is limited by the auxin, while that of the parent branch is not. In cases of witch's broom, the normal hierarchy of buds is interrupted, and apices grow indiscriminately. This can be caused by cytokinin, a phytohormone which interferes with growth regulation. The phenomenon can a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blackthorn With Taphrina Pruni Gall
''Prunus spinosa'', called blackthorn or sloe, is a species of flowering plant in the rose family Rosaceae. The species is native to Europe, western Asia, and regionally in northwest Africa. It is locally naturalized in New Zealand, Tasmania, and the Pacific Northwest and New England regions of the United States. The fruits are used to make sloe gin in Britain and patxaran in Spain. The wood is used to make walking sticks, including the Irish shillelagh. Description ''Prunus spinosa'' is a large deciduous shrub or small tree growing to tall, with blackish bark and dense, stiff, spiny branches. The leaves are oval, long and broad, with a serrated margin. The flowers are about in diameter, with five creamy-white petals; they are produced shortly before the leaves in early spring, and are hermaphroditic, and insect-pollinated. The fruit, called a "sloe", is a drupe in diameter, black with a purple-blue waxy bloom, ripening in autumn and traditionally harvested – at l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Greengage
The greengages are a group of cultivars of the common European plum. The first true greengage came from a green-fruited wild plum ( fa , گوجهسبز, Gowjehsabz) which originated in Iran (Persia). Greengages are grown in temperate areas and are known for the rich, confectionery flavour. They are considered to be among the finest dessert plums. The ''Oxford English Dictionary'' regards "gage" and "greengage" as synonyms. However, not all gages are green, and some horticulturists make a distinction between the two words, with greengages as a variety of the gages, scientifically named ''Prunus domestica'' (subsp. ''italica'' var. ''claudiana''.)Andrew F. Smith The gages otherwise include the large and usually purple to blackish but occasionally bright yellow round plums as well as the ancient and little-known Austrian varieties ''Punze'' (var. ''rotunda'') and ''Weinkriech'' (var. ''vinaria''). Description Greengage fruit are identified by their round-oval shape and smooth ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Prunus Spinosa
''Prunus spinosa'', called blackthorn or sloe, is a species of flowering plant in the rose family Rosaceae. The species is native to Europe, western Asia, and regionally in northwest Africa. It is locally naturalized in New Zealand, Tasmania, and the Pacific Northwest and New England regions of the United States. The fruits are used to make sloe gin in Britain and patxaran in Spain. The wood is used to make walking sticks, including the Irish shillelagh. Description ''Prunus spinosa'' is a large deciduous shrub or small tree growing to tall, with blackish bark and dense, stiff, spiny branches. The leaves are oval, long and broad, with a serrated margin. The flowers are about in diameter, with five creamy-white petals; they are produced shortly before the leaves in early spring, and are hermaphroditic, and insect-pollinated. The fruit, called a "sloe", is a drupe in diameter, black with a purple-blue waxy bloom, ripening in autumn and traditionally harvested – at lea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mirabelle Plum
Mirabelle plum (''Prunus domestica'' subsp. ''syriaca'') is a cultivar group of plum trees of the genus ''Prunus''. It is believed that the plum was cultivated from a wild fruit grown in Anatolia. Description The mirabelle is identified by its small, oval shape, smooth-textured flesh, and especially by its red, or dark yellow colour which becomes flecked in appearance. They are known for being sweet and full of flavour. The fruit is primarily used in fruit preserves and dessert pies, and its juice is commonly fermented for wine or distilled into plum brandy. Some 90% of mirabelle plums grown commercially are made into either jam (70%) or eau de vie (20%). The plums are also excellent when eaten fresh. The mirabelle reaches maturity and is harvested from July to mid-September in the Northern Hemisphere. The traditional method of shaking the trees is now mechanized, but the principle remains the same: the ripe fruits are shaken loose and collected in a net under the tree. Culti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
