Helicotylenchus

The plant hosts of the nematode genus Helicotylenchus include a width range of hosts, o.a. fruit crops, vegetables, agronomic crops, ornamental plants, forages, turfgrasses and weeds.

Plant-feeding nematode species can be mirgratory or sendentary, feeding either inside the host plant root (endoparasites) or outside the plant root (ectoparasites) and can cause serious economic damage to agricultural crops. The genus Helicotylenchus belongs to the ectoparasites.

(Source: Global Soil Biodiversity Atlas|Chapter II – Diversity of soil organisms)

More pictures of Helicotylenchus pseudorobustus:

Helicotylenchus pseudorobustus: female habitus
Helicotylenchus pseudorobustus: female habitus

Helicotylenchus pseudorobustus: anterior body region with stylet and dorsal pharyngeal gland orifice
Helicotylenchus pseudorobustus: anterior body region with stylet and dorsal pharyngeal gland orifice

Helicotylenchus pseudorobustus: anterior body region with stylet and dorsal pharyngeal gland orifice
Helicotylenchus pseudorobustus: anterior body region with stylet and dorsal pharyngeal gland orifice

Helicotylenchus pseudorobustus: anterior body region with stylet and dorsal pharyngeal gland orifice with metacorpus and excretory pore
Helicotylenchus pseudorobustus: anterior body region with stylet and dorsal pharyngeal gland orifice with metacorpus and excretory pore

Helicotylenchus pseudorobustus: lateral field near stylet areolated
Helicotylenchus pseudorobustus: lateral field near stylet areolated

Helicotylenchus pseudorobustus: pharynx and excretory pore
Helicotylenchus pseudorobustus: pharynx and excretory pore

Helicotylenchus pseudorobustus: vulva, vagina & empty spermatheca
Helicotylenchus pseudorobustus: vulva, vagina & empty spermatheca
Helicotylenchus pseudorobustus: lateral field near metacorpus partly areolated
Helicotylenchus pseudorobustus: lateral field near metacorpus partly areolated
Helicotylenchus pseudorobustus: lateral field
Helicotylenchus pseudorobustus: lateral field
Helicotylenchus pseudorobustus: anal opening
Helicotylenchus pseudorobustus: anal opening
Helicotylenchus pseudorobustus: phasmid 3 annuli anterior to anus
Helicotylenchus pseudorobustus: phasmid 3 annuli anterior to anus
Helicotylenchus pseudorobustus: tail region with anal opening and ventral tail projection
Helicotylenchus pseudorobustus: tail region with anal opening and ventral tail projection
Helicotylenchus pseudorobustus: tail region with anal opening and ventral tail projection
Helicotylenchus pseudorobustus: tail region with anal opening and ventral tail projection

More pictures of Helicotylenchus exallus:

Helicotylenchus exallus: male habitus
Helicotylenchus exallus: male habitus
Helicotylenchus exallus: female habitus
Helicotylenchus exallus: female habitus
Helicotylenchus exallus: anterior body region with stylet
Helicotylenchus exallus: anterior body region with stylet
Helicotylenchus exallus: anterior body region with stylet
Helicotylenchus exallus: anterior body region with stylet
Helicotylenchus exallus: anterior part of the pharynx
Helicotylenchus exallus: anterior part of the pharynx
Helicotylenchus exallus: excretory pore near pharynx-intestine level
Helicotylenchus exallus: excretory pore near pharynx-intestine level
Helicotylenchus exallus: pharyngeal gland overlap
Helicotylenchus exallus: pharyngeal gland overlap
Helicotylenchus exallus: vulva
Helicotylenchus exallus: vulva
Helicotylenchus exallus: phasmid, lateral field, cuticle annulation
Helicotylenchus exallus: phasmid, lateral field, cuticle annulation
Helicotylenchus exallus: anal opening and tail
Helicotylenchus exallus: anal opening and tail
Helicotylenchus exallus: bursa and phasmid
Helicotylenchus exallus: bursa and phasmid
Helicotylenchus exallus: gubernaculum, spicule and tailtip
Helicotylenchus exallus: gubernaculum, spicule and tailtip

More pictures of Helicotylenchus canadensis:

Helicotylenchus canadensis: female habitus
Helicotylenchus canadensis: female habitus

Helicotylenchus canadensis: anterior body region (with flattened anterior head)
Helicotylenchus canadensis: anterior body region (with flattened anterior head)

Helicotylenchus canadensis: anterior body region (with flattened anterior head)
Helicotylenchus canadensis: anterior body region (with flattened anterior head)

Helicotylenchus canadensis: anterior body region (with flattened anterior head) with anterior pharynx
Helicotylenchus canadensis: anterior body region (with flattened anterior head) with anterior pharynx

Helicotylenchus canadensis: anterior body region (with flattened anterior head) with anterior pharynx
Helicotylenchus canadensis: anterior body region (with flattened anterior head) with anterior pharynx

Helicotylenchus canadensis: excretory pore and small pharyngeal gland overlap
Helicotylenchus canadensis: excretory pore and small pharyngeal gland overlap

Helicotylenchus canadensis: vulva
Helicotylenchus canadensis: vulva
Helicotylenchus canadensis: empty spermatheca
Helicotylenchus canadensis: empty spermatheca
Helicotylenchus canadensis: empty spermatheca
Helicotylenchus canadensis: empty spermatheca
Helicotylenchus canadensis: phasmid
Helicotylenchus canadensis: phasmid

Helicotylenchus canadensis: tail region with anal opening
Helicotylenchus canadensis: tail region with anal opening

More pictures of Helicotylenchus vulgaris:

Helicotylenchus vulgaris: female habitus
Helicotylenchus vulgaris: female habitus

Helicotylenchus vulgaris: anterior body region with flattened lip region
Helicotylenchus vulgaris: anterior body region with flattened lip region

Helicotylenchus vulgaris: anterior body region with flattened lip region with dorsal gland orifice
Helicotylenchus vulgaris: anterior body region with flattened lip region with dorsal gland orifice

Helicotylenchus vulgaris: median bulb en gland overlap
Helicotylenchus vulgaris: median bulb en gland overlap

Helicotylenchus vulgaris: cuticle annulation
Helicotylenchus vulgaris: cuticle annulation

Helicotylenchus vulgaris: vulva
Helicotylenchus vulgaris: vulva

Helicotylenchus vulgaris: vulva, empty spermatheca
Helicotylenchus vulgaris: vulva, empty spermatheca

Helicotylenchus vulgaris: tail region with anal opening
Helicotylenchus vulgaris: tail region with anal opening