a saclike animal embryo consisting of three layers of cells (ectoderm, mesoderm, and endoderm) surrounding a central cavity (archenteron) with a small opening (blastopore) to the exterior
See also ectoderm, mesoderm, endoderm
Derived forms
gastrular (ˈgastrular)
adjective
Word origin
C19: New Latin: little stomach, from Greek gastēr belly
Examples of 'gastrulae' in a sentence
gastrulae
Gastrulation begins at 17 h post-fertilization (hpf) and embryos hatch at 26 hpf as ciliated gastrulae.
Paul Gonzalez, Jeffrey Z. Jiang, Christopher J. Lowe 2018, 'The development and metamorphosis of the indirect developing acorn worm Schizocardiumcalifornicum (Enteropneusta: Spengelidae)', Frontiers in Zoologyhttp://link.springer.com/article/10.1186/s12983-018-0270-0. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Artemia franciscana embryos enter diapause as encysted gastrulae, a physiological state of metabolic dormancy and enhanced stress resistance.
Allison M King, Thomas H MacRae 2012, 'The small heat shock protein p26 aids development of encysting Artemia embryos, preventsspontaneous diapause termination and protects against stress.', PLoS ONEhttp://europepmc.org/articles/PMC3428274?pdf=render. Retrieved from PLOS CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)