Twenty seminiferous tubules of each individual were analyzed to determine the area and perimeter, based on a standard measurement for a longitudinal section of the animal, with evidence of the gut in the second third of the planarian
The ability to follow individual neoblasts opens the door to uncovering the molecular cues that help planarian
stem cells navigate to the site of injury and ultimately may allow scientists to provide therapeutic stem cells with guideposts to their correct destination.
He pinpointed the locations of stem cells and studied how far they dispersed using RNA whole-mount in situ hybridization (WISH), specifically adapted to planarians
in Sanchez Alvarado's lab.
vagum Jones and Sterrer (Platyhelminthes: Tricladida), a terrestrial broadhead planarian
new to North America.
In this study, our main interest was to demonstrate the high level of neurobiological development of the Onychophora, as shown by the presence of cephalic ganglion, well-differentiated neurons characterized by a high production of synaptic vesicles, and having a proportionality of their cytoplasm and nucleus very much similar to that of planarian
neurons (Reuter 1981, Biserova et al.
Exotic land planarians
of the genus Bipalium (Platyhelminthes: Turbellaria) from Pennsylvania and the Academy of Natural Sciences, Philadelphia.
are generally intolerant of organic pollution, although some species have been observed in heavily polluted waters (Kenk 1974).
Fissiparity is a frequent and interesting mode of asexual reproduction that is widespread in freshwater planarians
that have no sexual apparatus; hence the term, fissiparous.
reportedly avoid a solution prepared by pulverizing a conspecific in 1 ml of water (the full-strength test solution).
get smaller when there is no food, and they return to their original size when feeding is reinstated.
Using complementary methods, Reddien and graduate students Dan Wagner and Irving Wang demonstrated that adult planarians
not only possess pluripotent stem cells known as clonogenic neoblasts (cNeoblasts), a single such cell is capable of regenerating an entire animal.
are famous for their immense power of regeneration, being able to regenerate a new head after decapitation.