Fig 4 - uploaded by Akbar Karegar
Content may be subject to copyright.
Tylenchorhynchus brassicae: A, C & F-I: female; B, E & J: male; A & B: Pharynx; C-E: Head and stylet; F: Lateral field; G: Part of reproductive system; H-J: tail.
Source publication
Among plant-parasitic nematodes collected from fields, orchards, meadows and grasslands of the primarily
seven southern provinces of the country viz. Fars, Sistan and Baluchistan, Hormozgan, Khuzestan, Kohgiloyeh and Boyer-Ahmad, Kerman and Bushehr; 13 species of the subfamily Telotylenchinae of the genera Bitylenchus, Neodolichorhynchus, Paratroph...
Similar publications
Diplotriaena delirae Pinto & Noronha, 1970 is known to parasitize Pitangus sulphuratus (Linnaeus, 1766) in Peru and in the Midwestern and Southeastern regions of Brazil. Here, specimens of P. sulphuratus were collected in the southern state of Rio Grande do Sul, Brazil, and necropsied. Nematodes ( n = 6) found in these specimens were identified as...
Parasitic nematodes can infect both wild and cultivated fish species and may be the source of many
diseases. The consumption of raw fish meat in many countries has been the responsible of nematode
related zoonosis. Knowing the risk of consumption of contaminated fish by the local communities,
the main goal of this paper is to quantify and report th...
Eight species of Paratylenchus were collected and identified from
vineyards in Kermanshah province, western Iran. Description, measurements, line drawings and microscopic photographs are provided for two new records namely P. humilis and P. prunii. Paratylenchus humilis have a lip region truncate-conoid with distinct small submedian lobes in latera...
Citations
... The general morphology of the recovered population of the species closely resembles that of the type population (Allen, 1955) and other populations from Jordan (Hashim, 1983), southern Spain (Castillo et al., 1991), Spain and USA (Handoo et al., 2014), and Iran (Ghaderi and Karegar, 2016). Compared with the Egyptian population reported by Elmiligy (1969), the body length is shorter (414-523 vs 565-610 µm) and the number of tail annuli is less (14-16 vs 19-20 µm). ...
During a survey on the biodiversity of plant-parasitic nematodes in Misan province (southeast Iraq), Tylenchorhynchus clarus and T. zeae were discovered around the rhizosphere of sugarcane and pumpkin, respectively. The morphological and morphometric data were provided for the recovered species. The morphological characters of both populations are in agreement with the type populations and other populations of them. To the best of our knowledge, this is the first report of these two species from Iraq, and a first report of the association of T. zeae with pumpkin. Molecular phylogenetic analyses of the Iraqi populations of T. clarus and T. zeae using the D2–D3 expansion segments of 28S rDNA and internal transcribed spacer (ITS) rDNA sequences using Bayesian inference (BI), showed they form maximally supported clades with other sequences of both species.
... During nematode surveys in Iran, more than 50 species belonging to nine genera of Telotylenchinae Siddiqi, 1960, including Trichotylenchus divittatus (Siddiqi, 1961) Geraert, 2011 have been identified ( Ghaderi et al. 2014aGhaderi et al. , 2017. During a survey for identification of plant-parasitic nematodes of the subfamilies Merliniinae Siddiqi, 1971 and Telotylenchinae in primarily southern provinces of Iran (Ghaderi & Karegar 2016), 13 species of the latter subfamily were identified, with descriptions, morphometrics and line drawings presented for some of them. In the present study, we describe a new species of Trichotylenchus and provide photomicrographs and additional data on these 13 species of Telotylenchinae. ...
... During this survey, 14 species of plant-parasitic nematodes of the subfamily Telotylenchinae, were identified as follows: Trichotylenchus gorganiensis n. sp., Bitylenchus brevilineatus (Williams, 1960) Jairajpuri, 1982, B. parvus (Allen, 1955) Jairajpuri, 1982, B. ventrosignatus (Tobar Jiménez, 1969) Jairajpuri, 1982, Neodolichorhynchus phaseoli (Sethi & Swarup, 1968) Talavera & Tobar-Jiménez, 1997, N. sulcatus (de Guiran, 1967) Jairajpuri & Hunt, 1984, Paratrophurus kenanae Decker & El Amin, 1978, Trophurus impar Ganguly & Khan, 1983, T. ussuriensis Eroshenko, 1981, Tylenchorhynchus annulatus (Cassidy, 1930) Golden, 1971, T. brassicae Siddiqi, 1961, T. clarus Allen, 1955, T. leviterminalis Siddiqi, Mukherjee & Dasgupta, 1982and T. qasimii Ramzan, Handoo & Fayyaz, 2008. Morphometric data, descriptions, line drawings and molecular information have already been given for these species ( Ghaderi et al. 2014a, 2014b, Ghaderi & Karegar 2016). In the present study, a description, line drawings and morphometrics of T. gorganiensis n. sp., are presented, and photomicrographs for all aforementioned 14 species are provided. ...
... 23 A-H). Ghaderi & Karegar (2016) synonymized T. variannus Mavlyanov, 1978 with T. clarus because they found individuals in a T. clarus population from Iran showing annuli combined on the ventral side of tail to form larger-sized but smaller number of annuli ( Fig. 24 K, L). ...
Trichotylenchus gorganiensis n. sp. is described and illustrated based on morphological and morphometric data. The new species is characterized by its 760–1073 µm long body, conoid-rounded lip region continuous with the body contour and bearing 5–7 fine striae, 22.0–24.5 µm long stylet, basal pharyngeal bulb offset or slightly overlapping intestine, post-anal sac extending 50–73 % of the tail region, and cylindrical or subclavate tail with a striated terminus. Differences of the new species from the closely related species T. astriatus, T. astriatoides, T. changlingensis and T. papyrus are discussed. Photomicrographs and several taxonomic notes on 13 other species of Telotylenchinae, collected from Iran, are provided.
The genus Tylenchorhynchus is one of the largest and most problematic taxa of plant-parasitic nematodes. The separation or combining of certain genera into a large genus as Tylenchorhynchus sensu lato has long been the subject of debate. Mostly due to incomplete descriptions of valid species and the limited number of diagnostic characters, species identification has also been a challenging task in the genus, even in Tylenchorhynchus sensu stricto with fewer species. In this study, a tabular identification key is provided for 136 valid species of Tylenchorhynchus and the closely related genera Bitylenchus and Sauertylenchus. Species are coded based on the status of nine diagnostic characters viz. the number of transverse annuli on lip region, lip region demarcation, stylet length, presence of post-rectal sac, number of cuticular annuli on the ventral side of tail, tail shape, value of c′ ratio, tail terminus striation, and gubernaculum structure, as well as special characters for certain species. As a result, sixteen groups were identified that show the same status for all these characters. Further discussions are provided on the detailed characterization of the closely related species in each group, if needed.
