. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. FIGURE 5 A, B. Lucifer Yellow dye coupling of pre-oral ciliated cells of live Calliostoma ligatum veligers. A. Brightfield micrograph of the velum. Cilia extend toward the top of the photo. B. Fluorescence micrograph of the same portion of the velum as A. A single cell was filled and dye spread throughout all cells. Note the outlines of individual cells. Scale = 30 ^ B J J FIGURE 6 A-C. Intracellular electrode recordings from pre-oral ciliated cells of Calliostoma ligatum veligers. A. Ramp depolarizing current injected in
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. FIGURE 5 A, B. Lucifer Yellow dye coupling of pre-oral ciliated cells of live Calliostoma ligatum veligers. A. Brightfield micrograph of the velum. Cilia extend toward the top of the photo. B. Fluorescence micrograph of the same portion of the velum as A. A single cell was filled and dye spread throughout all cells. Note the outlines of individual cells. Scale = 30 ^ B J J FIGURE 6 A-C. Intracellular electrode recordings from pre-oral ciliated cells of Calliostoma ligatum veligers. A. Ramp depolarizing current injected into a single ciliated cell causes an initial slowing of cilia at position 1. As the ramp continues, the wave front of slowing cilia follows the arrows and cilia at position 2 begin to slow when those around 1 have stopped. This wave front passes through 3 to 4, whereupon all cilia have stopped. Laser record (top) shows that when the current is terminated, cilia begin to beat again. The laser beam passed through position 3 and thus detected the arrest of cilia in this area alone. All cilia were arrested before the current ramp reached its maximum. B. Simultaneous dual electrode recording from ciliated cells on opposite velar lobes. Top trace shows a spontaneous slow depolarization with numer- ous high frequency EPSPs while bottom trace remains at resting potential. Horizontal scale = 1 s, vertical scale = 10 mV. C. Simultaneous dual electrode recording from ciliated cells on opposite velar lobes. Depo- larizing current (up to 5 rt A) was gradually injected into electrode #2. Electrode # 1 shows the corresponding depolarization. Cilia beg^ to slow during the depolarization and eventually arrested at the position of electrode # 1 at the arrow. Electrode bridge was not balanced. Horizontal scale = 2 s, vertical scale = 20 Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of thes
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Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology
