Malenchus gilanensis

Malenchus gilanensis	Contents	Rev 07/26/2022
	Classification	Hosts
	Morphology and Anatomy	Life Cycle
Return to Malenchus Menu	Economic Importance	Damage
	Distribution	Management
Return to Tylenchidae Menu	Feeding	References
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Classification:

Tylenchida
       Tylenchina
        Tylenchoidea
         Tylenchidae
          Tylenchinae

Malenchus gilanensis Jalalinasab, Adeldoost, Abolafia, Heydari, 2019

Synonyms:

Morphology and Anatomy:

Refer to subfamily diagnosis (Tylenchinae)

Body straight or slightly ventrally curved, tapering gradually behind vulva.
Cuticle with narrow annuli, 0.8to.9um wide at mid-body.
Lateral fields with two lines, originating at level of median bulb and almost reaching the middle of the tail
Lip region narrower than body contour with fine striations, 4 to5um wide.
Amphidial apertures straight, as in members of subgenus Telomalenchus.
Stylet delicate, with rounded knobs directed backwards and conus about one-third of total length.
DEGO about 1 um behind base of stylet.
Esophagus with muscular, valved median bulb, slender isthmus and pyriform basal bulb .
Excretory pore near level of anterior part of basal bulb.
Deirids located almost at level of excretory pore.
Tail in both sexes straight, conical with finer annuli posterior to terminus of lateral field.

Females:

Monodelphic-prodelphic, ovary outstretched with one row of oocytes.
Spermatheca rounded to oval, offset and filled with rounded sperm cells.
Post-vulval uterine sac small and about one third of vulval body width long.
Vulva sunken into body, with large lateral flaps.

Males:

Body smaller than female.
Testis single, spermatogonia arranged in single row.
Spicules sickle-shaped.
Bursa adcloacal, with crenate margins, very small, appearing as a partial expansion of the lateral fields.
Gubernaculum 4to5 um long.

Ref: Jalalinasab et al., 2019

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

Distribution:

Described from samples of wood from a dead pine tree (Pinus nigra) in a forest in northern Iran.

Hosts:

For an extensive host range list for this species, click

Life Cycle:

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

References:

Geraert, E. 2008. The Tylenchidae of the World. Identification of the Family Tylenchidae (Nematoda). Ghent, Belgium, Akademia Press

Geraert & Raski, (1987) Rev. Nematol. 10(2):143-161.

Jalalinasab, P., Adeldoost, Y., Abolafia, J., Heydari, R. 2019. Description of Malenchus gilanensis n. sp. from Iran. Zootaxa 4638:562-570.

Khera, S., Zuckermann, B.M. (1963). In vitro studies of host-parasite relationships of some plant-parasitic nematodes, Nematologica, 9, 1-6.

Mortazavi, P., Heydari, F., Abolafia, J., Castillo, P., Pedram. M. 2021. Morphological and molecular characterization of Filenchus pseudodiscus n. sp. from east Golestan province, north Iran; with an updated phylogeny of Malenchus Andrï¿½ssy, 1968 (Tylenchomorpha: Tylenchidae). J. Nematology 53: DOI: https://doi.org/10.21307/jofnem-2021-069

Pedram, M., Soleymanzadeh, M., Pourjam, E., Mobasserim, M. 2018. Observations on Malenchus gilanensis n. sp. (Rhabditida: Tylenchidae), a morphological and molecular phylogenetic study. Zootaxa 4369:406-418.

Qing, X., Sanchez-Monge, A., Janssen, T., Couvreur, M. and Bert, W. 2016. Description of Malenchus sexlineatus n. sp., new records of three known species of Malenchus Andrassy, 1968 (Nematoda: Tylenchidae) and notes on amphidial aperture development. Nematology 18:155-174.

Qing, X., Bert, W. 2017. Redefinition of Genus Malenchus Andrassy, 1968 (Tylenchomorpha: Tylenchidae) with Additional Data on Ecology. J. Nematology 49:189-206.

Siddiqi, M.R. 2000. Tylenchida. Parasites of Plants and Insects, 2nd edition. Wallingford, UK, CAB International.