Ebrahim Kazemi; Gholamreza Niknam
Abstract
Abstract Dorylaimids contain the most number of nematodes and take part in various aspects of ecosystem. For this reason and for study on dorylaimid fauna, 70 soil samples were collected from the rhizosphere of different vegetations in Kahaq region, Maragheh, East Azarbaijan province during 2014 ...
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Abstract Dorylaimids contain the most number of nematodes and take part in various aspects of ecosystem. For this reason and for study on dorylaimid fauna, 70 soil samples were collected from the rhizosphere of different vegetations in Kahaq region, Maragheh, East Azarbaijan province during 2014 and 2015. Then sampels were transfered to laboratory. Nematodes were extracted by centrifugal flotation technique and transferred to glycerin according to the modified De Grisse (1969) method. The permanent slides were prepared from the extracted nematodes. The nematodes were identified under light microscope. The morphometric data were taken using a drawing tube attached to the microscope. For identification of nematode speciments, species keys and references were used. As the results, Aulolaimoides elegans, Crassolabium cylindricum, C. rhopalocercum, Diphtherophora tenera, D. communis, Dorylaimoides elegans, D. limophilus, Ischiodorylaimus cognatus, I. paraugandanus, Margollus bokanicus, Mesodorylaimus potus, Metaxonchium persicum, Opisthodorylaimus sylphoides, Oxydirus oxycephaloides, Paravulvus microdontus, Pungentus engadiensis, Syncheilaxonchium nairi, Thornia propinqua, T. parathermophila and Tylenchilaimus minimus were identified. M. potus and the genus Thornia are new records for Iran nematode fauna.
shafighe eskandary; Gholamreza Niknam; Akbar Karghar Bideh
Volume 2, Issue 3 , January 2014, , Pages 17-23
Abstract
Abstract In order to identify biodiversity of plant parasitic nematodes in alfalfa and no comprehensive research about the plant parasitic nematodes associated with alfalfa,during 2002-2003, 33 soil samples were collected from alfalfa fields of several locations in alfalfa fields in Ahar region, ...
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Abstract In order to identify biodiversity of plant parasitic nematodes in alfalfa and no comprehensive research about the plant parasitic nematodes associated with alfalfa,during 2002-2003, 33 soil samples were collected from alfalfa fields of several locations in alfalfa fields in Ahar region, partly biodiversity plant parasitic nematodes in this crop were identified.Nematodes extracted by combined sieving and centrifugal-floatation Jenkinse method and transferred to glycerine by De Grisse,s method. After preparation pemanent microscopically slides examined under the light microscope. Measurements and drawing of nematodes were carried out using by drawing tube equipped the microscope. Different species were identified on the basis of morphological characters as well as morphometric parameters and available literature. In this survey 20 species of 11 genera belonging sub order tylenchina included: Boleodorus thylactus, Coslenchus aquaticus, Criconemella antipolitana, Ditylenchus dipsaci, Ditylenchus medicaginis, Geocenamus brevidens, Geocenamus nanus, Geocenamus quadrifer, Helicotylenchus digonicus, Helicotylenchus pseudorobustus, Helicotylenchus vulgaris, Paratylenchus italiensis, Paratylenchus tateae, Pratylenchus scribneri, Pratylenchus neglectus, Pratylenchus thornei, Psilenchus iranicus, Tylenchoryhnchus parvus, Tylenchoryhnchus striatus, Zygotylenchus guevarai. Among the recognized genera and species, Geocenamus nanus, Tylenchoryhnchus striatus and Tylenchoryhnchus parvus are reported for the first time from lucerne fields of Iran.
