Lecture 7 Ultrastructure of Longidoridae

Ultrastructure of the anterior portion of Longidorus and Xiphinema spp.

Slides adapted from Robertson and Taylor, Scottish Horticultural Research Institute.


 

Longidorus and Xiphinema

Spear and esophageal structures

Longidorus and Xiphinema

Electron micrograph of stoma and odontostyle tip with anotated diagram.

Longidorus

Electron micrograph of cross-section of anterior region of odontostyle, with annotated diagram.

Longidorus

Electron micrograph of cross-section of posterior region of odontostyle, with annotated diagram

Longidorus

Electron micrograph of cross-section of posterior region of odontophore, with annotated diagram

Xiphinema

Electron micrograph of cross-section of anterior region of odontostyle, with annotated diagram

Xiphinema

Electron micrograph of cross-section of posterior region of odontostyle, with annotated diagram

Xiphinema

Electron micrograph of cross-section of posterior region of odontophore, with annotated diagram.

Xiphinema

Diagrammatic cross section of posterior esophageal region with lumen closed (left) and lumen opened by contraction of radial muscles (right)

Xiphinema

Electron micrographs of posterior esophageal region with lumen opened by contraction of radial muscles. Cross section (upper), longitudinal section (lower).