Results 11 to 20 of about 1,066 (127)

Numerical Taxonomy Helps Identification of Merliniidae and Telotylenchidae (Nematoda: Tylenchoidea) from Iran [PDF]

open access: yesJournal of Nematology, 2017
Abstract Numerical taxonomy was used for identification and grouping of the genera, species, and populations in the families Merliniidae and Telotylenchidae. The variability of each of 44 morphometric characters was evaluated by calculation of the coefficient of variability (CV) and the ratio of extremes (max/min)
REZA GHADERI   +2 more
doaj   +9 more sources

The “Hemizonid,” a Hitherto Unrecorded Structure in Members of the Tylenchoidea. [PDF]

open access: yesJournal of Helminthology, 1951
During the detailed study of the finer anatomical structure of the potato tuber nematode, Ditylenchus destructor Thome, 1945, the presence of an apparently hitherto unrecorded structure was revealed. It is situated on the ventral surface of the body just anterior to the excretory pore.
Goodey, J. B.
openaire   +2 more sources

Mesotylus: Nouveau Genre De Pratylenchinae (Nematoda: Tylenchoidea) [PDF]

open access: yesNematologica, 1963
Le genre Mesotylus n. g. est cree et deux especes decrites et figurees: Mesotylus gallicus n. sp. (espece type) et Mesotylus laomasinae n. sp. Ce nouveau genre est caracterise par la region cephalique proche de Pratylenchus, l'oesophage entourant d'abord l'intestin, puis le longeant ventralement sur une assez grande longueur, et, chez la femelle, par ...
Guiran, Georges de
core   +7 more sources

Hirschmannia N.G. Differentiated From Radopholus Thorne, 1949 (Nematoda: Tylenchoidea) [PDF]

open access: yesNematologica, 1962
Re-examination of a specimen of Tylenchorhynchus spinicaudatus Sch. Stek., 1944 showed it to be conspecific with Radopholus lavabri Luc, 1957. This is made the type of Hirschmannia n.g. which also contains H. gracilis n. comb. and H. oryzae n. comb. The lectotype of H. spinicaudata is redescribed and Radopholus redefined.
/Luc, Michel, Goodey, B.
openaire   +3 more sources

An updated and annotated checklist of the Dolichodoridae <br />(Nematoda: Tylenchoidea) of Iran [PDF]

open access: yesZootaxa, 2014
The list of plant parasitic nematodes of the family Dolichodoridae, known from Iran, is updated. 81 species belonging to 13 genera and three subfamilies are included in the list. Data for 29 species are added, of which seven species viz. Neodolichorhynchus phaseoli, Pratylenchoides crenicauda, P. erzurumensis, P.
Ghaderi, Reza   +2 more
openaire   +4 more sources

Head Morphology of Second-Stage Juveniles of Some Heteroderidae (Nematoda: Tylenchoidea) [PDF]

open access: yesNematologica, 1975
Scanning electron microscope observations of heads of second stage juveniles of five of the genera of the Heteroderidae are described and the systematic significance of the different forms discussed. Within the genus Heterodera differences in head morphology generally accord with the recognised sub-divisions of the genus.
Stone, A. R., A.R. Stone
openaire   +2 more sources

Discontinuous Variation in Tylenchoidea (Nemata) [PDF]

open access: yesNematologica, 1990
It is hypothesized that the very large variability in body length of about 3 to 1 found in Diplogasterida, Rhabditida and a few Tylenchida (Ditylenchus, Aphelenchus) represents an abrupt, discontinuous phenomenon in Tylenchoidea. If this is correct, a large number of described species are only morphometrical variants of each other.
E. Geraert
openaire   +2 more sources

نماتدهای انگل گیاهی خانواده‌های Merliniidae، Telotylenchidae و Pratylenchidae (Nematoda: Tylenchoidea) در گیاهان مهم زراعی منطقه‏ ی‌ گرگان [PDF]

open access: yesگیاه‌پزشکی, 2019
به منظور شناسایی نماتدهای خانواده‌های Merliniidae، Telotylenchidae و Pratylenchidae در گیاهان مهم زراعی منطقه‌ی گرگان، طی سال‌های 1394-1393، تعداد 64 نمونه‏ ی‌ خاک و ریشه ی‌ گیاهان مهم زراعی از مناطق مختلف منطقه‏ ی‌ گرگان جمع‌آوری گردید.
اباذر سعیدی   +3 more
doaj   +3 more sources

A Revison of the Family Heteroderidae (Nematoda: Tylenchoidea) [PDF]

open access: yesNematologica, 1972
The family Heteroderidae and the subfamilies Heteroderinae and Meloidoderinae are redefined. The subfamily Meloidogyninae is raised to family Meloidogynidae. The genus Meloidoderita Poghossian, 1966 is transferred to the family Meloidogynidae. Ataloderinae n. subfam. is proposed and diagnosed in the family Heteroderidae.
W.M. Wouts
core   +4 more sources

Comparison of the Head Patterns in the Tylenchoidea (Nematoda) [PDF]

open access: yesNematologica, 1997
The first comparative study of head patterns in tylenchs was that of Sher & Bell (1975). De Grisse (1911) and Coomans & De Grisse (1981) srudied rhe underlying nervous system. The new information added since then is reviewed in this paper to see if the various patterns are characteristic of higher groupings (e.,9.
E. Geraert, Geraert, Etienne
openaire   +2 more sources

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