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ECB-ART-51968
Dev Growth Differ 1991 Aug 01;334:411-419. doi: 10.1111/j.1440-169X.1991.00411.x.
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The Effects of lithium and Zinc Ions on the Pattern of Acidic Glycans in the Sea Urchin (Hemicentrotus pulcherrimus) Embryo: (sea urchin embryo/lithium/zinc/acidic glycan/UEA-I).

Taniguchi Y , Terayama H .


Abstract
Among several acidic glycan components found in Hemicentrotus embryos, the "F"- and "S"-components were specifically affected by treatment with Li+ and Zn2+ , respectively. The amount of the "F"-component in Li+ -treated embryos was about 60% that in normal embryos. This fact was in accordance with the reduced alcian blue staining of the surfaces in Li+ -treated embryos. Moreover, the "F"-component in Li+ -treated embryos appeared to be composed of two subcomponents, while in normal and Zn2+ -treated embryos it appeared to be single. The "S"-component in Zn2+ -treated embryos was about 8% that in normal embryos. According to histochemistry with a lectin probe, it was found that UEA-I was much more strongly associated with a hyaline layer in Li+ -treated than in normal and Zn2+ -treated embryos. Li+ -treated embryos developed into exogastrulas, which were divided by a constriction into two parts; an animal half which stained intensely with alcian blue, and a vegetal half which stained poorly. On the other hand, Zn2+ -treated embryos remained as permanent blastulas. Considering the above, it is suggested that change in the acidic glycan pattern leads to alterations in the morphogenesis of sea urchin embryos.

PubMed ID: 37281270
Article link: Dev Growth Differ



References [+] :
Akam, The molecular basis for metameric pattern in the Drosophila embryo. 1987, Pubmed