In the spring of 1965 rots of unknown origin were found in nearly all specimens about of canna indica l. The nematode genus ditylenchus filipjev contains more than 80 species, only few are parasites of higher plants. Pdf molecular identification of ditylenchus destructor nematode. Keep in mind that the search is only based on the full taxon name. The type species of the genus is the stem and bulb nematode, ditylenchus dipsaci, which is a severe plant pathogen worldwide, although its. Pm 787 2 ditylenchus destructor and ditylenchus dipsaci. General information about ditylenchus destructor dityde eppo global database. Transcriptome analyses of ditylenchus destructorin. Morphological and molecular analyses of a stem nematode causing a severe disease on infected sowthistle sonchus bulbosus plants, involving the formation of galllike structures on infected leaves and stems, have led to the description of a new species named ditylenchus oncogenus n. A diagnostic protocol for ditylenchus destructor is described in eppo 2008. The panel on plant health performed a pest categorisation of. Pdf summary the reproduction and effect of ditylenchus destructor isolated from groundnut in south africa on seven commercial potato. Many are fungal feeders but some are important plant parasites.
Morphological and molecular characterisation of ditylenchus. Distribution and fluctuations in the soils of western france in vegetable and fodder cultures. Ditylenchus destructor potato tuber nematode, potato rot nematode is recorded from all continents, mainly from temperate regions. Its chromosome number has been reported from a number of hosts and geographical origins and it varies from n 6 to 30 sturhan and brzeski, 1991. Ditylenchus gigas, while the majority of species are myco phagous. Scribd is the worlds largest social reading and publishing site. Enter the name or part of a name you wish to search for. Ditylenchus dipsaci described as anguillula dipsaci by kuhn, 1857.
Summary the reproduction and effect of ditylenchus. Many weeds and grasses are hosts for the nematode and may play an. The new species is characterised by a body length of 772 663863. Description, biology, life cycle, damage, common names, images. Resistance and tolerance of potato varieties to potato rot. Effect of planting potatoes infested with ditylenchus. Its structure has been studied in great detail by thome who differentiates it, under the name of ditylenchus destructor n. Dec 07, 2016 the efsa panel on plant health performed a pest risk assessment on ditylenchus destructor, the potato rot nematode, for the eu. Study of ditylenchus dipsaci kuhn filipjev populations. Discovery of potato rot nematode, ditylenchus destructor. Ditylenchus destructor and ditylenchus dipsaci, eppo bulletin. Pdf histopathology of ditylenchus destructor on peanut.
Ditylenchus destructor is a polyphagous nematode infecting more than 100 species of plants from a wide variety of families. Management through crop rotation is not feasible because of their wide host range. Ditylenchus destructor potato tuber nematode, potato rot. As of 2019, there are more than 60 described species. Pratylenchus neglectusditylenchus destructor r ditylenchus dipsa cimeloidogyne incognita f aphelenchoides anguina ditylenchus aphelenchus radopholus pratylenchus y radopholus trichodorus pratylenchus t.
C cirsium setosum moscow region, russia af396322 v. Lateral fields with six incisures, which are reduced to two on the neck and tail. Nematicidal activity against aphelenchoides besseyi and. Ditylenchus dipsaci and ditylenchus destructor published fri, 28 apr 2017, 11. The full text of this article is available as a pdf 466k. A new distribution map is provided for ditylenchus destructor thorne, nematoda. Invasion of the plant parts by ditylenchus destructor proceeded more slowly in genotypes with long growth periods. Pdf response of potato cultivars to ditylenchus destructor. Ditylenchus destructor and ditylenchus dipsaci 2008 eppo. Ditylenchus destructor and ditylenchus dipsaci are economically important plant. A form of the stem eelworm giving rise to rot in potato tubers has been found in idaho, u. The efsa panel on plant health performed a pest risk assessment on ditylenchus destructor, the potato rot nematode, for the eu. Not surprisingly, several species have been described with morphological. Federally recognized state managed phytosanitary program.
These nematodes are listed as quarantine pests in many countries. By using a bioactivitydriven fractionation, three biflavonoids were isolated from the extract. Ditylenchus destructor potato tuber nematode, potato rot nematode is. Morphologically, the new species is characterized by a medium to large body size all adults more than. Ditylenchus destructor thorne, 1945 fauna europaea. Request pdf discovery of potato rot nematode, ditylenchus destructor, infesting potato in inner mongolia, china potato rot nematode, ditylenchus destructor thorne, 1945, is a serious nematode.
Aphelenchoides besseyi and ditylenchus destructor can cause serious problems for a number of important agricultural crops and vegetables. Ditylenchus destructor in canna indica, nematologica 10. T 7380\ cuticle near head marked by transverse striae about 1 u apart, while on the remainder of the body the striae are obscure unless the specimens are shrunken by cold fixative. For the professional diagnostician vegetable disease facts. Introduction among the more than 80 species presently recognized in the genus ditylenchus filipjev, 1936, only a few are parasites of higher plants, while the majority of species is mycophagous. Dec 01, 2008 pm 787 1 specific scope this standard describes a diagnostic protocol for ditylenchus destructor and ditylenchus dipsaci. Risk assessment of ditylenchus destructor european food. Notes on taxonomy and nomenclature top of page ditylenchus dipsaci exhibits considerable variation with external factors, such as temperature, and it has several host races. Although there are a number of reports on differences in host range, pathogenicity and virulence within the species, so far no. Pratylenchus neglectusditylenchus destructor r ditylenchus dipsa cimeloidogyne incognita f aphelenchoides anguina ditylenchus.
Ditylenchus dipsaci, aphelenchus avenae t mphinema index, ditylenchus destructor aphelenchoides aphelenchus r. Presence of the potato rot nematode potato growing areas preclude the export of potatoes to international markets due to the restrictions imposed by many countries against this pest. D pilosella officinarum pesotchin, kharkov region, ukraine ay574304 z. Similarities to other speciesconditions top of page the ditylenchus species that attacks groundnut in south africa has been referred to as d. Pm 787 2 ditylenchus destructor and ditylenchus dipsaci 2017. Ditylenchus dipsaci and ditylenchus destructor ippc. Moore an foras taluntais, nematologyj entomology department, kinsealy, malahtde road, dublin 5 abstract in a microplot experiment, seed potato tubers infested at three levels with ditylenchus destructor. The federally recognized state managed phytosanitary frsmp program provides a process for aphis, in close collaboration with the states, to recategorize pests so they no longer require action at ports of entry. Ditylenchus destructor thorne heterodera destructor.
Ditylenchus destructor is particularly widespread in north china qi et al. In this study, the ethanol extract of stellera chamaejasme l. Myceliophagus feeding on botrytis cinerea published on 01 jan 1966 by brill. Scientific opinion on the pest categorisation of ditylenchus. Although all genotypes tested were good hosts for d. Population dynamics of ditylenchus destructor on peanut. Pm 787 1 specific scope this standard describes a diagnostic protocol for ditylenchus destructor and ditylenchus dipsaci. Cephalic papillae and amphids visible only from a face view, arranged in a manner similar to those figured for ditylenchus disaci. Ditylenchus destructor ditydeoverview eppo global database. Ditylenchus destructor is a plant pathogenic nematode commonly known as the potato rot nematode. Ditylenchus destructor thorne, 1945 widely prevalent. The rots were dry and were inhabited by fungi, but no special parasitic fungus was found in about ten plants investigated. Ditylenchus destructor, the two species rarely occur together in the same plant andrassy and farkas, 1988. It is a nearcosmopolitan species, common in temperate regions and responsible for severe losses in potato and hop production eppo, 20a.
It is an endoparasitic, migratory nematode commonly found in areas such as the united states, europe, central asia and southern africa. The population development of ditylenchus destructor in the roots, pegs, hulls, and seeds of eight peanut arachis hypogaea genotypes was studied in the greenhouse. Response of potato cultivars to ditylenchus destructor. Length variation and repetitive sequences of internal. Information is given on the geographical distribution in europe albania, austria, belarus, belgium, bulgaria, czech republic, estonia, finland, france, mainland france. Ditylenchus destructor and ditylenchus dipsaci, eppo. In the absence of host plants it is capable of feeding and reproducing on mycelia of many fungi. A culture technique for ditylenchus destructor on sweet.
D pilosella caespitosa gaidary, kharkov region, ukraine ay574305 v. Meeting minutes of the working group on ditylenchus. Recently, ditylenchus destructor thorne was for the first time reported in hulls and seeds of groundnut aruchis hypogueu l. Lindeque grain crops research institute, private bag x 1251, potchejitroom 2520 and vegetable and ornamental plant research institute, private bag x 293, pretoria 0001, republic of south africa. Ditylenchus article about ditylenchus by the free dictionary. Ditylenchus a genus of roundworms, or nematodes, of the family tylenchidae. Ditylenchus destructor thorne, 1945 english common names.
Help pages, faqs, uniprotkb manual, documents, news archive and biocuration projects. Median bulb of pharynx welldeveloped, muscular with crescentic valve. Among the more than 80 species currently recognized in the genus ditylenchus filipjev, 1936, only a few are parasites of higher plants, such as d. The type species of the genus is the stem and bulb nematode, ditylenchus dipsaci, which is a severe plant pathogen worldwide, although its habitats are circumscribed. One of the main reasons for the apparent decline in impact caused by d. Morphologically, the new species is characterized by a medium to large body size all adults more than 1 mm. Description all male and female stages are vermiform and adults are 0. Ditylenchus destructor in canna indica ditylenchus destructor in canna indica andersson, stig 19670101 00. Risk assessment of ditylenchus destructor european food safety.
Ditylenchus destructor thorne, 1945 widely prevalent plant. Ditylenchus destructor and ditylenchus dipsaci eppo global. Ditylenchus dipsaci, aphelenchus avenae t mphinema index, ditylenchus destructor aphelenchoides aphelenchus r longidorus xiphinema f criconerna criconemoides r paratrichodorus trichodorus heterodera globodera r. Proceedings of the helminthological society of washington 12, 2734. Ditylenchus destructor has been reported as a serious pest of potato and other crops in the past but more recently, only few mss reported impact caused by this nematode. Anguillulina filipev, 1936 nothotylenchus thorne, 1941 boleodoroides mathur, khan and prasad, 1966 diptenchus khan, chawla and seshadri, 1969 safianema siddiqi, 1980 orrina brzeski, 1981. They also have a short stylet with prominent knobs, a distinct median esophageal bulb, and a basal bulb slightly overlapping the intestine. Summary the effect of temperature on egg production, hatching and the life cycle of ditylenchus destructor isolated from groundnut in.
Population dynamics of ditylenchus destructor on peanut ncbi nih. Genus described in 1934, but includes one of oldest known plant parasites. It focused the assessment of entry, establishment, spread and impact on two crops. Histopathology of ditylenchus destructor on peanut article pdf available in journal of nematology 223. Apr 22, 2017 a new species in the genus ditylenchus, d. The population development of ditylenchus destructor in the roots, pegs, hulls, and seeds of eight.
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