. The biology of Stentor. Stentor. FUSION MASSES OF WHOLE STENTORS 211 that cell shape is an expression of the cortical stripe pattern, following its unity, distortion, or multiplicity. In other words, one never finds a normal cell shape imposed on a grossly abnormal stripe Fig. 59. Formation of multiple cell-shapes. A. Persistent doublets often show tendency to produce parallel bodies. B. The same tendency to "cleavages" shown in a triplet (posterior end view). C. Tail folded into wound left by removing the division primordium. A new tail was produced at the bend (x) and e
. The biology of Stentor. Stentor. FUSION MASSES OF WHOLE STENTORS 211 that cell shape is an expression of the cortical stripe pattern, following its unity, distortion, or multiplicity. In other words, one never finds a normal cell shape imposed on a grossly abnormal stripe Fig. 59. Formation of multiple cell-shapes. A. Persistent doublets often show tendency to produce parallel bodies. B. The same tendency to "cleavages" shown in a triplet (posterior end view). C. Tail folded into wound left by removing the division primordium. A new tail was produced at the bend (x) and each pole organized a separate cell shape. The nuclear chain is relocated accordingly. 2. Adjustments among formed ectoplasmic organelles Correlated with the reconstitution of the normal stentor shape are shifts and adjustments of formed feeding organelles and holdfasts. Figure 60 illustrates the major tendencies. Separated organelles migrate together, like to like, in spite of the intervening ectoplasmic striping. In fact, the lateral striping co-operates or may even produce these shifts by resorptive shortening between the parts and extension elsewhere. Isolated mouthparts and membranellar bands may travel a long way to join with or even break into a major set of feeding organelles. Stentors in which the left half was rotated 180° and healed securely to the right nevertheless could sometimes gradually return to the. 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 Tartar, Vance, 1911-. New York, Pergammon Press
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