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A Normal Table of Early Development in Bombina Orientalis (Boulenger) , in Relation to Rearing Temperature
Author(s) -
MICHAEL PREMA
Publication year - 1981
Publication title -
development, growth and differentiation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.864
H-Index - 66
eISSN - 1440-169X
pISSN - 0012-1592
DOI - 10.1111/j.1440-169x.1981.00149.x
Subject(s) - biology , neurula , zoology , cleavage (geology) , gastrulation , embryogenesis , fishery , embryo , paleontology , fracture (geology)
The effect of temperature on the rate of development of Bombina orientalis has been investigated. Eggs obtained by hormonal stimulation were reared at 9 to 22.5°C with a variation of ±0.5°C, and development was followed up to the neurula stage. Between 20 and 22.5°C development proceeded normally with very little variation in time. Large time deviations were evident at temperatures below 18°C, particularly after the commencement of gastrulation. Abnormalities occurred at low temperatures and were common at 9°C. At 7°C initial cleavage was incomplete and further development did not occur.