Miculenchus salmae

Miculenchus salmae	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 salmae Siddiqi, 1979) Wanless & Davis, 1997

Synonyms:

Zanenchus salmae Siddiqi, 1979

Filenchus salmae (Siddiqi, 1979) Raski & Geraert, 1987

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 curved after fixation.
Cuticle with prominent annuli with zigzag margins.
Lateral field conspicuous, with two smooth incisures
Cephalic region continuous with body contour, hemispherical, with very fine annuli and a small ellipsoid-hexagonal labial plate
Amphid apertures crescent shaped,
Stylet delicate, conus forming 28-42% of its total length, knobs small, rounded and slightly posteriorly sloping.
Dorsal esophageal gland outlet at 1.5 Î¼m from stylet base.
Procorpus elongate, cylindrical, metacorpus ovate,with distinct central valva. Isthmus slender and long, postcorpus elongate-saccate and offset. Cardia rounded.
Excretory pore at posterior half of isthmus.
Reproductive system monodelphic-prodelphic, outstretched ovary with oocytes in single row, short oviduct, and an offset, oval to rounded spermatheca containing spheroid sperm. Crustaformeria quadricolumellate.
Vagina slightly anteriorly directed, vaginal walls slightly thickened, vulva a simple transverse slit, slightly sunken into body and lacking flaps.
Post-uterine sac absent.
Tail elongate conoid, gradually tapering to a pointed to sharp terminus bearing several small bristles on tip.

Males:

General morphology similar to that of female
Testis single and outstretched.
Spicules tylenchoid, slender, manubrium slightly offset, shaft remarkably long and slender, blade ventrally arcuate at distal region.
Gubernaculum trough-shaped.
Cloacal lips projecting, 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:

The population studied by Panahandeh et al., (2019) was recovered from grassland soil in Ardebil province, 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.