The International Journal of Developmental Biology

Volume 45 > Issue 5-6

Cover Vol. 45 N. 5-6

September 2001

Cover Legend

The cover picture illustrates the birth of root cementum. Opposite the dentin-pulp complex and apical to enamel and ameloblasts, a number of seemingly inconspicuous cells have assembled in front of the root surface, ready to deposit a mineralized tissue layer onto the already existing root dentin. This mineralized tissue layer is called cementum. It is one of four mineralized tissue types in the human body. The origins of this unusual tissue are still not completely understood. See the review paper by Diekwisch in the present issue.


The developmental biology of cementum.

T G Diekwisch

Int. J. Dev. Biol. (2001) 45: 695-706

Original articles

Developmental expression of chick twist and its regulation during limb patterning.

A T Tavares, J C Izpisúja-Belmonte and J Rodriguez-León

Int. J. Dev. Biol. (2001) 45: 707-713

The CNS midline cells control the spitz class and Egfr signaling genes to establish the proper cell fate of the Drosophila ventral neuroectoderm.

J Chang, I O Kim, J S Ahn and S H Kim

Int. J. Dev. Biol. (2001) 45: 715-724

The possible contribution of pituitary hormones to the heterochronic development of gonads and external morphology in overwintered larvae of Hynobius retardatus.

K Kank and M Wakahara

Int. J. Dev. Biol. (2001) 45: 725-732

Cell-matrix interactions and cell-cell junctions during epithelial histo-morphogenesis in the developing mouse incisor.

S Kieffer-Combeau, J M Meyer and H Lesot

Int. J. Dev. Biol. (2001) 45: 733-742

Heterogeneous nuclear ribonucleoprotein complexes from Xenopus laevis oocytes and somatic cells.

A Marcu, B Bassit, R Perez and S Piñol-Roma

Int. J. Dev. Biol. (2001) 45: 743-752

A unique aged human retinal pigmented epithelial cell line useful for studying lens differentiation in vitro.

P A Tsonis, W Jang, K Del Rio-Tsonis and G Eguchi

Int. J. Dev. Biol. (2001) 45: 753-758

The neural inductive response of competent chick ectoblast decreases away from the host axis and correlates with an increased proliferative activity.

S Deshmukh, M Sonawane and S P Modak

Int. J. Dev. Biol. (2001) 45: 759-766

Short communication

The neural inductive signal is transferred to ectoblast in 1-2 h but a continued contact with mesoblast for 2-3 h is essential for neuralization in the chick area pellucida.

D Joshi-Banka, S Deshmukh and S P Modak

Int. J. Dev. Biol. (2001) 45: 767-770