Oostenbrinkia pedrami

Oostenbrinkia pedrami	Contents	Rev 05/23/2022
	Classification	Biology and Ecology
	Morphology and Anatomy	Life Cycle
Return to Oostenbrinkia Menu		Ecosystem Functions and Services
	Distribution	Management
Return to Aulolaimoididae Menu	Feeding	References
	Go to Nemaplex Main Menu	Go to Dictionary of Terminology

Oostenbrinkia pedrami Farahnaz, 2020

Morphology and Anatomy:

Moderately long, cylindrical, gradually tapering anteriorly, and straight to slightly ventrally curved when relaxed.
Cuticle smooth, thin, 1.0 um thick at mid-body, and 1.5 um thick on the tail, not thickened on the tail tip.
Lateral chords 26.2 to 37.5% of body diameter at mid-body.
Lip region continuous with body contour, appearing angular due to the prominent outer labial papillaee; perioral disk-like differentiation; cephalic papillae small.
Amphidial fovea cup-shaped, with small slit apewrture. The cheilostom was wide, including distinctly refractive ribs forming a basket-like structure.
Oontostyle was robust, with distinct lumen and aperture, 1.2 to 1.7 times shorter than lip region diameter, and somewhat irregular in shape with the dorsal side slightly sigmoid and the anterior end apparently wider
Odontophore bout three times as long as the odontostyle, with basal flanges.
Guiding ring was indistinct.
Pharynx in three sections: an anterior slender occupying 38 to 43% of the total neck length, encircled by the nerve ring, at the swollen posterior end, middle isthmus-like part 10 to 18% of the total neck length, surrounded by glandular tissue, and posterior basal bulb, 23 to 25% of the total neck length, with a triquetrous chamber in posterior half with thickened walls
Three pharyngeal gland nuclei one dorsal, two ventromedian.
Cardia hemispheroid wider than long.
Prerectum length was 2.6 to 6.0 times the anal body diameter, rectum length was about equal to anal body diameter.
Tail was short and rounded.

Female:

Didelphic-amphidelphic, and both branches were short and of equal length.
Ovaries reflexed, usually reaching the vulva, the oocytes in a single row except in the germinal zone,
Oviduct connecting the tubular uterus with sphincter,
Vagina less than half-corresponding body width long, pars distalis vaginae about 5 um long, pars refringens vaginae apparently present, as sclerotized pieces about 3 um long and pars proximalis vaginae small .
Vulva a transverse slit, post equatorial.

Ref. Farahnaz, 2020

Males:

.Nor found

Reported median body size for this species (Length mm; width micrometers; weight micrograms) - Click:

Distribution:

Described from rhizosphere soil aroound Fagus orientalis in northern Iran.

Life Cycle:

Ecophysiological Parameters:

For Ecophysiological Parameters for this species, click	If species level data are not available, click for genus level parameters

Ecosystem Functions and Services:

References:

Andrassy, I. 2009. Free-living Nematodes of Hungary (Nematoda Errantia) Vol. 111. Humgarian Natural History Museum, Budapest. 508p.

Farahnaz, J.A. 2020. Oostenbrinkia pedrami n. sp. (Dorylaimida: Aulolaimoididae) from Iran, with molecular phylogenetic relationships to some other Dorylaimida Pearse, 1942. J. Nematology 52: | DOI: 10.21307/jofnem-2020-119