Nerve repair and behavioral recovery following brain transplantation in Notoplana acticola, a polyclad flatworm.

  title={Nerve repair and behavioral recovery following brain transplantation in Notoplana acticola, a polyclad flatworm.},
  author={L. Davies and Larry Keenan and Harold Koopowitz},
  journal={The Journal of experimental zoology},
  volume={235 2},
Although Notoplana acticola, a marine polyclad, cannot regenerate brain tissue, neuronal repair is rapid. Brains were transplanted into decerebrate flatworms to determine the anatomical patterns and functionality of neural connections established between a new brain and the peripheral nerve network of the recipient animal. Sixty-nine transplants were performed. Four brain transplant orientations were used: normal, reversed, inverted, and reversed inverted. The functionality of the transplanted… 
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Regeneration of the flatworm Prosthiostomum siphunculus (Polycladida, Platyhelminthes)
It is shown that as long as the brain remained at least partially intact, the polyclad Prosthiostomum siphunculus was able to regenerate submarginal eyes, cerebral eyes, pharynx, intestine and sucker and the overall regeneration capacity of P. siphuncus is a good fit for category III after a recently established system, in which most polyclads are currently classified.
Photonegative response in brown planaria (Dugesia tigrina) following regeneration.
The photonegative response was investigated in regenerated brown planaria (Dugesia tigrina), finding that the heads of the middle and young lost this function initially (despite only needing to regenerate their tails) and regained it over time.
Polyclad Neurobiology and the Evolution of Central Nervous Systems
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Neuronal repair and avoidance behavior in the flatworm, Notoplana acticola.
Notoplana does not replace ganglionic tissue but does compensate adequately for CNS damage, and action potentials are conducted across repaired tissue in both split-brain and half-brain worms in both seawater and Mg2+-rich solutions.
Primitive nervous systems. Control and recovery of feeding behavior in the polyclad flatworm, Notoplana acticola.
Feeding behavior in Notoplana acticola involves a series of local responses which are under central control, and Worms are still able to ingest food in the absence of the brain using local reflexes.
Neuronal plasticity and recovery of function in a polyclad flatworm
This study has been able to demonstrate not only recovery of function but also the recruitment of pathways mediating aspects of feeding behaviour in the marine polyclad flatworm, Notoplana acticola.
Implanted cerebral ganglia produce supernumerary eyes and tentacles in host snails
In the pulmonate snail Melampus bidentatus, cerebral ganglia from adult donors implanted into the hemocoel of adult host snails form connections with the host nervous system and periphery, and sensory cells and a neural link to the implant ganglion are present.
Intracerebral grafting of neuronal cell suspensions. VI. Survival and growth of intrahippocampal implants of septal cell suspensions.
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Observation on the Myo-Neural Physiology of the Polyclad, Planocera Gilchristi
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Cellular interactions and pattern formation in the development of the visual system of Daphnia magna (Crustacea, Branchiopoda). II. Induced retardation of optic axon ingrowth results in a delay in laminar neuron differentiation
  • E. Macagno
  • Biology
    The Journal of neuroscience : the official journal of the Society for Neuroscience
  • 1981
Serial section electron microscopic analysis showed that differentiation of laminar neurons contacted by the delayed axons also was delayed by a length of time corresponding to the delay in axon arrival, indicating that the differentiation ofLaminar neuron is triggered by contact with optic axons and can be initiated over a period of several hours after these cells become postmitotic.