Irradiation with ultraviolet light (254 nm) or ionizing radiation can prolong oral regeneration in the ciliate Stentor coeruleus. The primary response is an interruption in the regeneration cycle, starting soon after irradiation and leading to a delay in the completion of development. The relation o
Synchronization of Oral Primordia inStentor coeruleus
β Scribed by Tartar, Vance
- Publisher
- John Wiley and Sons
- Year
- 1966
- Tongue
- English
- Weight
- 863 KB
- Volume
- 161
- Category
- Article
- ISSN
- 0022-104X
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β¦ Synopsis
By grafting and other micrurgical operations, cells and cell-systems bearing two oral regeneration primordia initially in different phases of development can be produced. There is a strong tendency for the two anlagen to synchronize their developments and complete the later stages of oral differentiation together. The minority of cases, which failed to synchronize the developing primordia, indicated the limits of this coordination and always revealed prominent interaction between the graft components. A simple substrate hypothesis will probably not explain the results. Conclusions are that the oral primordium, once initiated, does not develop autonomously at its own intrinsic rate, and that a cell or fusion of cells performing the same process (elaboration of feeding organelles) in two different places within the system, strongly tends not to do so out of phase but synchronously.
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