Two new species of Aphelenchoides (Nematoda: Aphelenchida: Aphelenchoidea: Aphelenchidae) from Manipur, India

Abstract

Analysis of the soil samples collected from around rhizospheric region of mulberry plants grown in Yurembam Rose Garden, Yurembam, Imphal West, Manipur yielded several soil and plant parasitic nematodes. Among them four species of Aphelenchoides were recorded. Upon detailed study, two species of Aphelenchoides were found to be new to science. Aphelenchoides dhanachandi sp. n. is characterized by ventrally curved body, clearly set off cephalic region and tail ending into a sharp pointed terminus, and stylet slender, 13.6-15.3 (14 ± 0.7) µm long with indistinct basal swellings and tamarind seed-shaped median bulb. Aphelenchoides neoechinocaudatus sp. n. is characterized by straight body with four incisures in the lateral field, flatten cephalic region, slender stylet with indistinct basal swellings, 11.9 µm long, elongated pear-shaped median bulb and short tail with pointed mucro. The two species are illustrated here.

Eight known species of Aphelenchoides nematodes with description of a new species from Manipur, India

“…The oesophago-intestinal junction 64.6-76.5 lm from anterior end, 3.0-3.6 body widths posterior to median bulb. Remarks The present specimens conform well in dimensions and morphological details to those described by Chanu et al (2012). …”

“…Dimension Refer Remarks The present specimen conforms well in dimensions and morphological details to those described by Chanu et al (2012).…”

Overview of the Genus Boleodorus and First Reports of Boleodorus thylactus and B. volutus from Southern Alberta, Canada

“…The shortest species is B. citri Edward and Rai [42] (280-310 µm) and the longest is B. minustylus Mohilal, Anandi, and Dhanachand [43] (830-960 µm). The general body habitus is open C-shaped to spiral, however, B. acurvus Jairajpuri [44], B. spinnocaudatus Bina, Mohilal, Pramodini, and Majur-Shah [45], and B. solomonensis are outliers in this category and are reported to have almost straight body habitus. The stylets of Boleodorus species are delicate and short, ranging from 7 to 14 µm.…”

“…Three types of tail tips were described for Boleodorus species, i.e., rounded, pointed, and clavate. Almost all the species are reported to exhibit rounded tail tips except B. citri, B. filiformis, B. flexuosus Eroshenko [49], B. longicaudatus Bina, Mohilal, Pramodini, and Majur-Shah [45], and B. spinnocaudatus, which all have pointed tips, whereas B. acurvus and B. clavicaudatus Thorne [5] are known to have clavate tips.…”