Paraditylenchus gallaeformans

Paraditylenchus gallaeformans	Contents	Rev 11/04/2024
	Classification	Hosts
	Morphology and Anatomy	Life Cycle
Return to Paraditylenchus Menu	Economic Importance	Damage
	Distribution	Management
Return to Anguinidae Menu	Feeding	References
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Classification:

Tylenchida Tylenchina Tylenchoidea
Anguinidae
Anguininae

Paraditylenchus gallaeformans (Oliviera, Santin, Seni, Dietrich, Salazar, Subbotin, Mundo-Ocampo, Goldenberg & Barreto, 2013) Subbotin & Ryss, 2024

Molecular analysis indicates that P. gallaeformans is related to D. drepanocercus which is also associated with Miconia calvescens as a host but causes andular leafspots rather than galls

Synonym

Ditylenchus gallaeformans Oliviera, Santin, Seni, Dietrich, Salazar, Subbotin, Mundo-Ocampo, Goldenberg & Barreto, 2013.

Morphology and Anatomy:

Males with a bursa surrounfing the entire tail (peloderan).

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

Economic Importance:

This species is considered to be of potential value as a biological control agent of invasive weeds in Pacific island forests, particularly Miconia calvescens and Clidemia hirta..

Paraditylenchus. gallaeformans incites severe galling on above-ground parts of Miconia spp. including Miconia crenata, an invasive perennial shrub listed among the most serious of the invasive plant species of the world. It has been considered a potential biological control agent for the invasive plant. However, in a series of greenhouse and field trials, gall induction was inconsistenst and less severe than galling observed in natural locations. Consequently, de Oliveira et al (2023) concluded that inoculation of Miconia spp. with D. gallaeformis would be unreliable in management of the invasive species

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Feeding:

Feeding results in galls on leaves, infloresecenses and stems.

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Hosts:

For an extensive host range list for this species, click

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Life Cycle:

Ecophysiological Parameters:

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

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Damage:

Feeding results in galls on leaves, infloresecenses and stems with significant impact on hosts. Tissues are distorted with blister-like lesions. There is a latent period of about 30 days between inoculation and gall formation.

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Management:

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

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

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References:

de Oliviera, S.A., de Walt, S.J., Agudelo, P. 2023. Feasibility of Paraditylenchus gallaeformans as a biological control agent for invasive Miconia crenata. Nematology 25:227-237.

Oliviera, R.D.L., Santin, A.M., Seni, D.J., Dietrich, A., Salazar, L.A., Subbotin, S.A., Mundo-Ocampo, M., Goldenberg, R., Barreto, R.W. 2013. Paraditylenchus gallaeformans sp. n. (Tylenchida: Anguinidae) Ã¯Â¿Â½ a neotropical nematode with biocontrol potential against weedy Melastomataceae. Nematology 15:179-196. DOI: 10.1163/15685411-00002670

Subbotin, S.A. and Ryss, A.Y. 2024. Revision of the genus Ditylenchus Filipjev, 1936: Ditylenchoides gen. n. and Paraditylenchus gen. n. (Nematoda: Anguinoidea). Russian Journal of Nematology, 32: 91-102