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List Of Mustard Diseases
This article is a list of diseases of mustard (''Brassica juncea'' var. ''crispifolia'' and ''B. nigra''). Bacterial diseases Fungal diseases Miscellaneous diseases and disorders Nematodes, parasitic Viral diseases {, class="wikitable" style="clear" ! colspan=2, Viral diseases , - , Mosaic , , Cauliflower mosaic virus , - , Rai mosaic virus , , Turnip yellow mosaic virus ''Turnip yellow mosaic virus'' (TYMV) is an isometric ''Tymovirus'' of the family ''Tymoviridae''. Its host range is confined almost entirely to plants in the genus ''Brassica'' in western Europe, which includes cabbages, cauliflower and broccol ... , - ReferencesCommon Names of Diseases, The American Phytopathological Society Mustard Canola diseases ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mustard Plant
The mustard plant is any one of several plant species in the genera ''Brassica'' and ''Sinapis'' in the family Brassicaceae (the mustard family). Mustard seed is used as a spice. Grinding and mixing the seeds with water, vinegar, or other liquids creates the yellow condiment known as Mustard (condiment), prepared mustard. The seeds can also be pressed to make mustard oil, and the edible leaves can be eaten as Brassica juncea, mustard greens. Many vegetables are cultivated varieties of mustard plants; domestication may have begun 6,000 years ago. History Although some varieties of mustard plants were well-established crops in Hellenistic and Roman Empire, Roman times, Zohary and Hopf note, "There are almost no Archaeology, archeological records available for any of these crops." Wild forms of mustard and its relatives, the radish and turnip, can be found over West Asia and Europe, suggesting their domestication took place somewhere in that area. However, Zohary and Hopf conclu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thanatephorus Cucumeris
''Rhizoctonia'' is a genus of fungi in the order Cantharellales. Species form thin, effused, corticioid basidiocarps (fruit bodies), but are most frequently found in their sterile, anamorphic state. ''Rhizoctonia'' species are saprotrophic, but some are also facultative plant pathogens, causing commercially important crop diseases. Some are also endomycorrhizal associates of orchids. The genus name was formerly used to accommodate many superficially similar, but unrelated fungi. Taxonomy History Anamorphs ''Rhizoctonia'' was introduced in 1815 by French mycologist Augustin Pyramus de Candolle for anamorphic plant pathogenic fungi that produce both hyphae and sclerotia. The name is derived from Ancient Greek, ῥίζα (''rhiza'', "root") + κτόνος (''ktonos'', "murder"), and de Candolle's original species, ''Rhizoctonia crocorum'' (teleomorph ''Helicobasidium purpureum''), is the causal agent of violet root rot of carrots and other root vegetables. Subsequent authors adde ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Meloidogyne
Root-knot nematodes are plant-parasitic nematodes from the genus ''Meloidogyne''. They exist in soil in areas with hot climates or short winters. About 2000 plants worldwide are susceptible to infection by root-knot nematodes and they cause approximately 5% of global crop loss. Root-knot nematode larvae infect plant roots, causing the development of root-knot galls that drain the plant's photosynthate and nutrients. Infection of young plants may be lethal, while infection of mature plants causes decreased yield. Economic impact Root-knot nematodes (''Meloidogyne'' spp.) are one of the three most economically damaging genera of plant-parasitic nematodes on horticultural and field crops. Root-knot nematodes are distributed worldwide, and are obligate parasites of the roots of thousands of plant species, including monocotyledonous and dicotyledonous, herbaceous and woody plants. The genus includes more than 90 species, with some species having several races. Four ''Meloidogyne'' spe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fusarium Oxysporum
''Fusarium oxysporum'' (Schlecht as emended by Snyder and Hansen), an ascomycete fungus, comprises all the species, varieties and forms recognized by Wollenweber and Reinking within an infrageneric grouping called section Elegans. It is part of the family Nectriaceae. Although their predominant role in native soils may be as harmless or even beneficial plant endophytes or soil saprophytes, many strains within the ''F. oxysporum'' complex are soil borne pathogens of plants, especially in agricultural settings. Taxonomy While the species, as defined by Snyder and Hansen, has been widely accepted for more than 50 years, more recent work indicates this taxon is actually a genetically heterogeneous polytypic morphospecies, whose strains represent some of the most abundant and widespread microbes of the global soil microflora. Genome The ' family of transposable elements was first discovered by Daboussi ''et al.'', 1992 in several ''formae speciales'' and Davière ''et al.'', 2001 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pseudocercosporella Capsellae
''Pseudocercosporella capsellae'' is a plant pathogen infecting crucifers (canola, mustard, rapeseed). ''P. capsellae'' is the causal pathogen of white leaf spot disease, which is an economically significant disease in global agriculture. ''P. capsellae'' has a significant effect on crop yields on agricultural products, such as canola seed and rapeseed. Researchers are working hard to find effective methods of controlling this plant pathogen, using cultural control, genetic resistance, and chemical control practices. Due to its rapidly changing genome, ''P. capsellae'' is a rapidly emerging plant pathogen that is beginning to spread globally and affect farmers around the world. Habitat and Geographical Distribution Habitat ''Pseudocercosporella capsellae'' is generally found in humid environments. When ''P. capsellae'' is found in environments with low humidity, the fungus is unable to germinate and cause disease. This pathogen is not a thermophile, explaining how it is fo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Peronospora
''Peronospora'' is a genus of oomycetes that are obligate plant pathogens of many eudicots. Most species in this group produce a downy mildew disease, which can cause severe damage to many different cultivated crops, as well as wild and ornamental plants. There are 19 genera that produce downy mildew, and ''Peronospora'' has been placed alongside '' Pseudoperonospora'' in the group of downy mildews with coloured conidia. ''Peronospora'' has far more species than any other genus of the downy mildews. However, many species have been moved from this genus to be reclassified to other or new genera. Among these was the most famous ''Peronospora'' species, formerly known as ''Peronospora parasitica'', and now known as ''Hyaloperonospora parasitica''. Now, the ''Peronospora'' species of most importance is likely the ''Peronospora tabacina''. ''Peronospora tabacina'' causes blue mold on tobacco plants and can severely reduce yields of this economically important crop to the point where it ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Albugo Candida
''Albugo candida'', commonly known as white rust, is a species of oomycete in the family Albuginaceae. It is sometimes called a fungus, but in fact forms part of a distinct lineage of fungus-like microorganisms, Oomycetes, commonly known as water moulds. ''A. candida'' is an obligate plant pathogen that infects Brassicaceae species and causes the disease known as white rust or white blister rust. It has a relatively smaller genome than other oomycetes. Distribution ''A. candida'' has a cosmopolitan distribution and is known from many countries where cruciferous crops are grown in Europe, Asia, Africa, Australasia, North, Central, and South America. It has not been recorded from northern Scandinavia, northern and central Siberia, northern China, western and central Africa, Alaska, northern and central Canada, and southern and western South America. Hosts This pathogen infects plants in the family Brassicaceae; the growth stages involved include the seedling stage, the growing st ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Athelia Rolfsii
''Athelia rolfsii'' is a corticioid fungus in the family Atheliaceae. It is a facultative plant pathogen and is the causal agent of "southern blight" disease in crops. Taxonomy The species was first described in 1911 by Italian mycologist Pier Andrea Saccardo, based on specimens sent to him by Peter Henry Rolfs who considered the unnamed fungus to be the cause of tomato blight in Florida. The specimens sent to Saccardo were sterile, consisting of hyphae and sclerotia. He placed the species in the old form genus ''Sclerotium'', naming it ''Sclerotium rolfsii''. It is, however, not a species of ''Sclerotium'' in the strict sense. In 1932, Mario Curzi discovered that the teleomorph (spore-bearing state) was a corticioid fungus and accordingly placed the species in the form genus '' Corticium''. With a move to a more natural classification of fungi, ''Corticium rolfsii'' was transferred to '' Athelia'' in 1978. Description The fungus produces effused basidiocarps (fruit bodies) th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sclerotium Rolfsii
''Athelia rolfsii'' is a corticioid fungus in the family Atheliaceae. It is a facultative plant pathogen and is the causal agent of "southern blight" disease in crops. Taxonomy The species was first described in 1911 by Italian mycologist Pier Andrea Saccardo, based on specimens sent to him by Peter Henry Rolfs who considered the unnamed fungus to be the cause of tomato blight in Florida. The specimens sent to Saccardo were sterile, consisting of hyphae and sclerotia. He placed the species in the old form genus ''Sclerotium'', naming it ''Sclerotium rolfsii''. It is, however, not a species of ''Sclerotium'' in the strict sense. In 1932, Mario Curzi discovered that the teleomorph (spore-bearing state) was a corticioid fungus and accordingly placed the species in the form genus '' Corticium''. With a move to a more natural classification of fungi, ''Corticium rolfsii'' was transferred to '' Athelia'' in 1978. Description The fungus produces effused basidiocarps (fruit bodies) th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sclerotinia Sclerotiorum
''Sclerotinia sclerotiorum'' is a plant pathogenic fungus and can cause a disease called white mold if conditions are conducive. ''S. sclerotiorum'' can also be known as cottony rot, watery soft rot, stem rot, drop, crown rot and blossom blight. A key characteristic of this pathogen is its ability to produce black resting structures known as sclerotia and white fuzzy growths of mycelium on the plant it infects. These sclerotia give rise to a fruiting body in the spring that produces spores in a sac which is why fungi in this class are called sac fungi (Ascomycota). This pathogen can occur on many continents and has a wide host range of plants. When ''S. sclerotiorum'' is onset in the field by favorable environmental conditions, losses can be great and control measures should be considered. Hosts and symptoms ''S. sclerotiorum'' is among the most omnivorous of plant pathogens and so would not make a good mycoherbicide. Economically significant hosts include ''Vicia faba'', for w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Erysiphe Polygoni
''Erysiphe betae'' is a plant pathogen. It is a form of powdery mildew that can affect crops of sugar beet, when it can cause up to a 30% yield loss.Heffer, V., M. L. Powelson, K. B. Johnson, and N. Shishkoff. "Identification of Powdery Mildew Fungi anno 2006." Identification of Powdery Mildew Fungi. APS, 2006. Web. 14 Nov. 2016. The fungus occurs worldwide in all regions where sugar beet is grown and it also infects other edible crops, e.g. beetroot The beetroot is the taproot portion of a beet plant, usually known in North America as beets while the vegetable is referred to as beetroot in British English, and also known as the table beet, garden beet, red beet, dinner beet or golden beet .... Identification This pathogen is a strict obligated parasite, and therefore can only be identified when ''in planta''. Often to properly identify this pathogen, some form of microscopic analysis is needed when it is only found on one type of plant. This can be done through isolation an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phyllosticta Brassicina
''Phyllosticta'' is a genus of fungi. Many of the species in this genus are common and important plant pathogens. They typically infect the foliage and cause tannish-gray leaf spots with dark brown to purple borders. However, ''Phyllosticta'' may also infect fruit and stems. Yield loss is a common consequence of ''Phyllosticta'' infection. Species * '' Phyllosticta aberiae'' * '' Phyllosticta abietis'' * '' Phyllosticta abortiva'' * '' Phyllosticta abramovii'' * '' Phyllosticta abricola'' * '' Phyllosticta abutilonis'' * '' Phyllosticta acaciicola'' * '' Phyllosticta acanthopanacis'' * '' Phyllosticta acanthospermi'' * '' Phyllosticta acanthosyridis'' * ''Phyllosticta acericola'' * '' Phyllosticta acerina'' * '' Phyllosticta aceris'' * ''Phyllosticta aceris-obtusati'' * ''Phyllosticta acetosae'' * '' Phyllosticta acicola'' * '' Phyllosticta aconiti'' * ''Phyllosticta aconitifoliicola'' * ''Phyllosticta aconitina'' * ''Phyllosticta acori'' * ''Phyllosticta acoridii'' * ''Phyllos ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
