. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 76 \ J M \RIIN. H(jure 24. Distribution (if clusters of itnmunopositive cells in a wholemount of a 96 hour planula. These cells are found in the anterior (A), middle, and posterior (P) regions of the planula. X80. Figure 25. Wholemount of the mid to posterior region of a 96 hour planula showing the distribution ofFMRFamide-like positive clusters of cells. X90. I-inure 26. Wholemount of a mature planula showing the anterior region. Processes (arrows) stain faintly and are located in the ectodermal region of the ganglionic ple
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 76 \ J M \RIIN. H(jure 24. Distribution (if clusters of itnmunopositive cells in a wholemount of a 96 hour planula. These cells are found in the anterior (A), middle, and posterior (P) regions of the planula. X80. Figure 25. Wholemount of the mid to posterior region of a 96 hour planula showing the distribution ofFMRFamide-like positive clusters of cells. X90. I-inure 26. Wholemount of a mature planula showing the anterior region. Processes (arrows) stain faintly and are located in the ectodermal region of the ganglionic plexus and also just above the plexus. E, endoderm: EC. ectoderm. X250. h inure 27. Wholemount of a mature planula showing the posterior region. There are no positive stain- ing processes detected in this area. K, endoderm; !•"(', ectoderm. X250. phosis, a large '^her of immunopositive cells are de- tected in the extan. interior region of the planula (Fig. 23). Basal processes ol vjnsory cells located in the ante- rior region of the planula slain more intensely than do those of sensory cells distributed in the mid to posterior region of the animal (Figs. 21-23). The spatial distribution of cells expressing the FMRFamidc-like pcptide is easily visualized using wholemounts of planulae (Figs. 24-27). In mature plan- ulae (96 h) clusters of immunopositive cells are visible as large dots scattered along the length of the animal. A few of these FMRFamide-like positive clusters first appear in the anterior region of the late 24 hour planula and later in the mid to posterior regions of the mature planula. In wholemounts, the basal processes of the sensory cells arc very difficult to visuali/e as thev are tinv and stain only. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Marine Biological Laboratory (Woods Hole
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Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology
