Regeneration in the sea cucumberLeptosynapta. II. The regenerative capacity

✍ Scribed by Smith, Gerald N.

• Publisher: John Wiley and Sons
• Year: 1971
• Tongue: English
• Weight: 999 KB
• Volume: 177
• Category: Article
• ISSN: 0022-104X
• DOI: 10.1002/jez.1401770307

✦ Synopsis

The dependence of survival and regeneration in the holothuroid Leptosynapta crassipatina (Apoda) on the oral complexthe mouth, the nerve ring, the calcareous ring, and the water vascular systemwas investigated. The effect of surgical deletion of parts on survival and regeneration was determined. In isolated sections of the oral complex, the disk including the nerve ring and calcareous ring was able to survive and regenerate. Even small fractions of this disk began regeneration. Regeneration capacity and survival capacity were tested independently by deletion of parts from half animals. Regardless of the deletion, normal morphallactic posteriad regeneration occurred in animals surviving beyond five days. This was true even when the entire oral complex was deleted.