Dorsal irises from normal and lentectomized eyes of the newt Notophthalmus viridescens
were cultured in vitro in the presence of colchicine (1· 25× 10− 3 to 2· 5× 10− 6 M) …

Adult newts (Notophthalmus viridescens) were lentectomized and at intervals from 4 to 21
days after lentectomy iridocorneal complexes from these animals were examined by …

In Wolffian lens regeneration, lentectomized newt eye can produce a new lens from the
dorsal marginal iris, but the ventral iris has never shown such capabilities. To investigate the …

Treatment of cultured cells derived from the dorsal iris of the newt, Notophthalmus
viridescens, with cAMP or substances which increase intracellular levels of cAMP induces a …

Removal of the ocular lens in adult newts (Notophthalmus uiridescens) is followed by a
series of cellular events leading to regeneration of a new lens by cell type conversion of …

The development in vitro of the regenerating lens at successive time intervals after lens
removal was studied in the adult newt Triturus viridescens. Regenerates were cultured using …

The anterior lobe of the pituitary gland can stimulate lens regeneration from the dorsal iris in
the newt Notophthalmus viridescens. We have studied the effect of pituitary hormone …

When the lens was removed from the eye of adultNotophthalmus viridescens and the
specific DNA precursor, thymidine-3 H, was injected intraperitoneally, the initiation of DNA …

LENS regeneration by the dorsal iris in the lentectomized newt is a phenomenon which has
been studied from the viewpoints of experimental embryology1, 2 as well as cell biology3–7 …

Upon lentectomy of adult newt eyes, the dorsal iris epithelium produces a cell population
that develops into a new lens. The tissue transformation can be completed not only in the …