Pratylenchus Brachyurus

	Pratylenchus Brachyurus ''Pratylenchus brachyurus'' is a plant parasitic nematode. Introduction ''Pratylenchus brachyurus'', like many other plant-parasitic nematodes, are microscopic worms that can be damaging to many agricultural crops. Across the world, many billions of dollars each year are lost due to the damaging abilities of nematodes on cash crops. ''P. brachyurus'' is a migratory endoparasite that enters the roots and moves throughout the root tissue while completing its life cycle. History Under the old classification system based on morphology, these nematodes were under the Class Adenophorea. This changed in 2004 when a new classification system was presented by De Ley and Blaxter using SSU rDNA for comparison between different species of nematodes. Using this new system, De Ley and Blaxter placed ''P. brachyurus'' in the Class Chromadorea, Order Rhabditida. In 1929 Godfrey first described ''P. brachyurus'' as the main cause for pineapple-root disease and called them ''Tylenchus brachy ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
picture info	Animal Animals are multicellular, eukaryotic organisms in the Kingdom (biology), biological kingdom Animalia. With few exceptions, animals Heterotroph, consume organic material, Cellular respiration#Aerobic respiration, breathe oxygen, are Motility, able to move, can Sexual reproduction, reproduce sexually, and go through an ontogenetic stage in which their body consists of a hollow sphere of Cell (biology), cells, the blastula, during Embryogenesis, embryonic development. Over 1.5 million Extant taxon, living animal species have been Species description, described—of which around 1 million are Insecta, insects—but it has been estimated there are over 7 million animal species in total. Animals range in length from to . They have Ecology, complex interactions with each other and their environments, forming intricate food webs. The scientific study of animals is known as zoology. Most living animal species are in Bilateria, a clade whose members have a Symmetry in biology#Bilate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
picture info	Nematoda The nematodes ( or grc-gre, Νηματώδη; la, Nematoda) or roundworms constitute the phylum Nematoda (also called Nemathelminthes), with plant-parasitic nematodes also known as eelworms. They are a diverse animal phylum inhabiting a broad range of environments. Less formally, they are categorized as Helminths, but are taxonomically classified along with arthropods, tardigrades and other moulting animals in the clade Ecdysozoa, and unlike flatworms, have tubular digestive systems with openings at both ends. Like tardigrades, they have a reduced number of Hox genes, but their sister phylum Nematomorpha has kept the ancestral protostome Hox genotype, which shows that the reduction has occurred within the nematode phylum. Nematode species can be difficult to distinguish from one another. Consequently, estimates of the number of nematode species described to date vary by author and may change rapidly over time. A 2013 survey of animal biodiversity published in the mega jou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
picture info	Adenophorea Adenophorea or Aphasmidia was a class of nematodes (roundworms). It has been by and large abandoned by modern taxonomy, because there is strong evidence for it being a motley paraphyletic group of unrelated lineages of roundworms.ToL (2002) Characteristics supposed to distinguish Adenophorea are: * amphids always post-labial, shape, pore-like to elaborate * deirids are not seen * phasmids are generally absent * hypodermal glands present (excretory?) uninucleate * simple non-tubular excretory system when present * three caudal glands commonly opening through a spinneret at the tail tip * male generally has two testes * caudal alae are rare * male with supplement glands in a single ventro-median row * sensory papillae in cephalic region and along the body * generally there are five esophageal glands * marine, freshwater, terrestrial As it seems, a number of these traits are plesiomorph In phylogenetics, a plesiomorphy ("near form") and symplesiomorphy are synonyms for an ances ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Diplogasteria Diplogasterida was an order of nematodes. It was sometimes placed in a monotypic subclass Diplogasteria, but molecular phylogenetic evidence has shown it to be embedded in the family Rhabditidae (formerly Rhabditina). The confusion of having a hierarchical nesting of groups that were formerly mutually exclusive has led to a profusion of names. Although completely revised taxonomy of nematodes that builds on recent classification systems as well as recent phylogenetic evidence is still necessary, most contemporary taxonomic studies now treat all groups listed under "Diplogasterina" below as a single family, Diplogastridae. Subdivisions Suborder Chambersiellina Hodda 2007 Superfamily Chambersielloidea Thorne 1937 *Family Chambersiellidae Thorne 1937 (Sanwal 1957) Suborder Diplogasterina Paramonov 1952 Superfamily Cylindrocorporoidea T. Goodey 1939 Family Cylindrocorporidae T. Goodey 1939 Family Odontopharyngidae Micoletzky 1922 Superfamily Diplogasteroid ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Tylenchida Tylenchida is an order of nematodes. List of families * Superfamily Criconematoidea Family Criconematidae Family Tylenchulidae * Superfamily Tylenchoidea Family Anguinidae Family Belonolaimidae Family Dolichodoridae Family Ecphyadophoridae Family Hoplolaimidae Family Heteroderidae Family Pratylenchidae Family Tylenchidae Tylenchidae is a family of nematode The nematodes ( or grc-gre, Νηματώδη; la, Nematoda) or roundworms constitute the phylum Nematoda (also called Nemathelminthes), with plant- parasitic nematodes also known as eelworms. They are a ... * Superfamily Sphaerularina Family Allantonematidae Family Fergusobiidae Family Iotonchiidae Family Parasitylenchidae ** Family Sphaerulariidae References Further reading * Mohammad Rafiq Siddiqui. ''Tylenchida: Parasites of Plants and Insects''. 2nd ed. Wallingford: CABI Publishing, 2000. Ex ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Tylenchoidea Tylenchoidea is a superfamily of roundworms. Its members are either plant parasites Parasitism is a close relationship between species, where one organism, the parasite, lives on or inside another organism, the host, causing it some harm, and is adapted structurally to this way of life. The entomologist E. O. Wilson ha ... or detritivores. References Tylenchida Animal superfamilies {{Secernentea-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Pratylenchidae Pratylenchidae is a family Family (from la, familia) is a group of people related either by consanguinity (by recognized birth) or affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its members and of society. Idea ... of plant pathogenic nematodes. Members include Achlysiella williamsi. References Tylenchida Nematode families Taxa described in 1949 {{plant-disease-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Pratylenchinae Pratylenchidae is a family of nematodes or roundworms. It contains the subfamily Pratylenchinae, as well as the subfamilies Hirschmanniellinae, Radopholinae, and Nacobbinae. Pratylenchinae are plant parasites Parasitism is a Symbiosis, close relationship between species, where one organism, the parasite, lives on or inside another organism, the Host (biology), host, causing it some harm, and is Adaptation, adapted structurally to this way of lif .... Sources Tylenchida Protostome subfamilies {{Secernentea-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Pratylenchus ''Pratylenchus'' is a genus of nematodes known commonly as lesion nematodes.Crow, W. TAmaryllis lesion nematode, ''Pratylenchus hippeastri''.EENY-546. University of Florida IFAS. 2012. They are parasitic on plants and are responsible for root lesion disease on many taxa of host plants in temperate regions around the world. Lesion nematodes are migratory endoparasites that feed and reproduce in the root and move around, unlike the cyst or root-knot nematodes, which may stay in one place. They usually only feed on the cortex of the root.Lesion nematodes. University of Illinois Extension. 1999. Species are distinguished primarily by the morphology of the [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
picture info	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]
	Crop Rotation Crop rotation is the practice of growing a series of different types of crops in the same area across a sequence of growing seasons. It reduces reliance on one set of nutrients, pest and weed pressure, and the probability of developing resistant pests and weeds. Growing the same crop in the same place for many years in a row, known as monocropping, gradually depletes the soil of certain nutrients and selects for a highly competitive pest and weed community. Without balancing nutrient use and diversifying pest and weed communities, the productivity of monocultures is highly dependent on external inputs. Conversely, a well-designed crop rotation can reduce the need for synthetic fertilizers and herbicides by better using ecosystem services from a diverse set of crops. Additionally, crop rotations can improve soil structure and organic matter, which reduces erosion and increases farm system resilience. History Agriculturalists have long recognized that suitable rotations — such ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
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