Synthesis of ribosomal RNA in sea urchin embryos V. Further evidence for an activation following the hatching blastula stage

1971 ◽  
Vol 254 (3) ◽  
pp. 447-451 ◽  
Author(s):  
G Sconzo ◽  
G Giudice
Keyword(s):  
Sea Urchin ◽  
Ribosomal Rna ◽  
Blastula Stage ◽  
Sea Urchin Embryos

Micromere descendants at the blastula stage are involved in normal archenteron formation in sea urchin embryos

2001 ◽  
Vol 211 (2) ◽  
pp. 83-88 ◽  
Author(s):  
Yasuhiro Ishizuka ◽  
Takuya Minokawa ◽  
Shonan Amemiya
Keyword(s):  
Sea Urchin ◽  
Blastula Stage ◽  
Sea Urchin Embryos

Isolation of Homologous Nuclear Dnas from Sea-Urchin Embryos

1972 ◽  
Vol 11 (1) ◽  
pp. 153-171
Author(s):  
R. F. BAKER
Keyword(s):  
Molecular Weight ◽  
High Molecular Weight ◽  
Sea Urchin ◽  
Dna Hybridization ◽  
Nuclear Dna ◽  
Strongylocentrotus Purpuratus ◽  
Low Molecular Weight ◽  
Blastula Stage ◽  
Sea Urchin Embryos

Studies are presented on the ability of low-molecular-weight nuclear DNA fractions to hybridize to higher-molecular-weight nuclear DNAs taken from different stages of early developing sea-urchin embryos, Strongylocentrotus purpuratus. Using preparative DNA-DNA hybridization, a fraction of 6o-s mid-blastula DNA was isolated for its ability to anneal to 10-s morula DNA. Approximately 80 regions on each 6o-s molecule were found to be homologous to 10-s DNA. High-molecular-weight (> 240-s) nuclear DNA from mesenchyme blastula stage and later stages (compared with DNA from pre-blastula nuclei) shows an increase in the number of regions homologous to fractions of 10- and 60-s DNAs.

Effect of chemical animalization and vegetalization on the synthesis of ribosomal RNA in sea urchin embryos

1970 ◽  
Vol 164 (3) ◽  
pp. 222-225 ◽  
Author(s):  
Anna Maria Pirrone ◽  
Gabriella Sconzo ◽  
Vincenzo Mutolo ◽  
Giovanni Giudice
Keyword(s):  
Sea Urchin ◽  
Ribosomal Rna ◽  
Sea Urchin Embryos

Regulation of ribosomal RNA synthesis in sea urchin embryos and oocytes

1981 ◽  
Vol 87 (2) ◽  
pp. 220-228 ◽  
Author(s):  
Jeffrey K. Griffith ◽  
Barbara B. Griffith ◽  
Tom Humphreys
Keyword(s):  
Sea Urchin ◽  
Ribosomal Rna ◽  
Rna Synthesis ◽  
Sea Urchin Embryos

Regulation of ribosomal RNA synthesis in sea urchin embryos

1992 ◽  
Vol 3 (4) ◽  
pp. 369-374 ◽  
Author(s):  
Rainer Barbieri ◽  
Vincenzo Izzo ◽  
Maria Cantone ◽  
Giovanni Duro ◽  
Giovanni Giudice
Keyword(s):  
Sea Urchin ◽  
Ribosomal Rna ◽  
Rna Synthesis ◽  
Sea Urchin Embryos

scholarly journals Runx Expression Is Mitogenic and Mutually Linked to Wnt Activity in Blastula-Stage Sea Urchin Embryos

PLoS ONE ◽  
2008 ◽  
Vol 3 (11) ◽  
pp. e3770 ◽  
Author(s):  
Anthony J. Robertson ◽  
Alison Coluccio ◽  
Peter Knowlton ◽  
Carrie Dickey-Sims ◽  
James A. Coffman
Keyword(s):  
Sea Urchin ◽  
Blastula Stage ◽  
Sea Urchin Embryos
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