2024年1月25日 · This study aimed to describe the new species morphologically and molecularly, analyze its phylogenetic relationship with other Helicotylenchus species based on rRNA gene sequences, and provide comprehensive and diagnostic tables for …

2020年8月3日 · Review of the genus Helicotylenchus Steiner, 1945 (Nematoda: Hoplolaimidae) with updated diagnostic compendium. Pakistan Journal of Nematology 33:115-160. Back to Top

During a survey of plant-parasitic nematodes in South Africa's Limpopo Province, two species of Helicotylenchus were identified, namely H. dihystera and H. pseudorobustus. The morphological and molecular characteristics of these species were found to be consistent with those of …

Helicotylenchus hydrophilus differs in having a smoothly rounded, shorter, and less robust ventral tail projection (4-7 µm in five paratypes versus mucronate and 5-11 µm), a closed versus open-ended lateral field, a more anterior dorsal esophageal gland orifice (O = 36-42 versus 43-46 in H. amplius ), and a longer stylet conus (M = 45-49 versus ...

2024年9月7日 · During a survey of plant-parasitic nematodes in South Africa's Limpopo Province, two species of Helicotylenchus were identified, namely H. dihystera and H. pseudorobustus. The morphological and molecular characteristics of these species were found to be consistent with those of the known species.

2019年12月10日 · The species is bisexual and reproduces by cross-fertilization or amphimixis. The nematodes easily get introduced into virgin land with banana soil and rhizomes, usually brought from old, infested plantations. The nematodes can survive 4 months without host plants, but is less resistant to desiccation than H. dihystera (Baujard and Martin, 1995).

2018年3月1日 · Three Helicotylenchus species, namely Helicotylenchus digonicus, Helicotylenchus pseudorobustus and Helicotylenchus vulgaris were identified during a nematode survey conducted in Iran. The morphological and molecular characteristics of the species were defined. In addition, phylogenetic analysis of …

2019年11月21日 · Males: Similar to female except for non-spiral body shape and sexual dimorphism. Extremely rare and not essential for reproduction. Stylet 22-27 µm, spicule 22-23 µm, and gubernaculum 7-8 µm. D-rated pests in California. Ecto- and semi-endoparasites; have large population densities.

2015年1月12日 · In this paper we provide morphological and molecular characterisations of several spiral nematodes, H. broadbalkiensis, H. digonicus, H. dihystera, H. microlobus, H. paxilli and H. pseudorobustus,...

2020年6月8日 · Results suggest that the Helicotylenchus population identified using molecular characteristics as H. pseudorobustus is a paraphyletic group, with hierarchical clustering analysis indicating a close relationship between the Iranian and the Chinese populations of H. pseudorobustus.