Discovery reports (1953) Discovery reports discoveryreports25inst Year: 1953 304 DISCOVERY REPORTS Fig. 14 shows again at each side of the carina sections of a number of stalks, of trophomeres and of gonomeres. Here there is a second hole at the right side of the basal region of the carina (left in the figure). Through this hole an excrescence of the organ of fixation protrudes, thereby becoming external. At its top it divides into a number of stalks. One side of the internal part of the organ of Fig. 13. Same specimen as Fig. 12, a slightly more posterior section. Letters as in Fig. 12.
Discovery reports (1953) Discovery reports discoveryreports25inst Year: 1953 304 DISCOVERY REPORTS Fig. 14 shows again at each side of the carina sections of a number of stalks, of trophomeres and of gonomeres. Here there is a second hole at the right side of the basal region of the carina (left in the figure). Through this hole an excrescence of the organ of fixation protrudes, thereby becoming external. At its top it divides into a number of stalks. One side of the internal part of the organ of Fig. 13. Same specimen as Fig. 12, a slightly more posterior section. Letters as in Fig. 12. In addition: /, organ of fixation; s, sieve plate, x 67. fixation shows the connexion with the proximal part of the root system, the complicated mass of cuticular matter with numerous openings of various sizes. A few roots with thin walls are to be seen in the tissues surrounding the organ of fixation. In the sectioned specimen therefore the organ of fixation possesses one excrescence which at the left side of the host pierces the basal part of the rostral carina, and two excrescences which at some distance from each other independently traverse the cuticle at the right side of the basal part of the rostral carina.
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Photo credit: © Bookend / Alamy / Afripics
License: Licensed
Model Released: No
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