Miculenchus muscus

Miculenchus muscus	Contents	Rev 12/16/2024
	Classification	Hosts
	Morphology and Anatomy	Life Cycle
Return to Miculenchus Menu	Economic Importance	Damage
	Distribution	Management
Return to Tylenchidae Menu	Feeding	References
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Classification:

Chromadorea
       Rhabditida
       Tylenchina
        Tylenchoidea
         Tylenchidae
          Tylenchinae

Miculenchus muscus Panahandeh, Pourjam, Alvarez-Ortega, Afshar & Pedram, 2019

Morphology and Anatomy:

.The absence of a bursa in males is one of the distinguishing features of the genus Miculenchus.

Refer to subfamily diagnosis (Tylenchinae).

Female:

Body straight or slightly ventrally arcuate when heatrelaxed.
Cuticle coarsely annulated, annuli 0.8-0.9 Î¼m wide at mid-body with zigzag margins
Lateral field prominent, marked by a single longitudinal ridge with smooth margins
Cephalic region continuous body contour, hemispherical, finely striated, with well-developed protuberant labial plate appearing as a small disc-like structure.
Amphidial apertures crescent-shaped open pores .
Stylet thin and weak, conus 29-41% of its total length, with rounded and slightly posteriorly directed knobs.
Dorsal esophageal gland orifice close to stylet knobs.
Procorpus slender, metacorpus oval with moderately developed valve, isthmus elongate, postcorpus pyriform, cardia discoid.
Excretory pore at level with anterior part of pharyngeal bulb,
Reproductive system monodelphic-prodelphic,
Ovary outstretched, oocytes arranged in single row, oviduct not clearly discernible,
Spermatheca filled with spheroid sperm cells, crustaformeria distinct, its cell arrangement not clearly seen,
Post-uterine sac short, vagina with thin wall, straight or slightly anteriorly inclined, vulva a transverse slit without flap.
Tail conoid, gradually tapering, with finely pointed tip, sometimes appearing to have a short mucron with several fine bristles on tip.

Males:

Rare but considered sexually functional (sperm cells observed inside spermatheca of female).
General morphology similar to that of female except for slightly shorter body.
Cephalic region hemispherical and similar to that of female.
Stylet thin, with rounded to slightly posteriorly sloping knobs.
Procorpus cylindrical, median bulb oval with moderately developed valve, isthmus slender and postcorpus bulb pyriform.
Testis single and outstretched. Spermatocytes in two rows after germinal zone, vas deferens full of spheroid sperm cells.
Spicules slender, slightly ventrally arcuate.
Gubernaculum trough-shaped. Cloacal lips projecting and forming a short, posteriorly directed penial tube.
Bursa absent.
Tail similar to that of female.

Ref. Panahandeh et al., 2019

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

Distribution:

Described from moss growing on a tree trunk in Iran.

Hosts:

For an extensive host range list for this species, click

Life Cycle:

Although males are less frequent than females, presumed sexually reproducing because males present and sperm in female spermatheca.

Ecophysiological Parameters:

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

Management:

Host Plant Resistance, Non-hosts and Crop Rotation alternatives:

For plants reported to have some level of resistance to this species, click

Panahandeh, Y., E. Pourjam, S. Alvarez-Ortega, F.J. Afshar and M. Pedram. 2019. New observations on Miculenchus Andrassy, 1959 (Nematoda: Tylenchidae) with descriptions of two new and one known species from Iran. Nematology 21:937-956.