The developmental stage was determined using Downs and Davies' criteria for staging morphological landmarks of the primitive streak, neural plate and head fold [19].
In a 3 h-induction, as expected, the cells displayed morphological landmarks of apoptosis-associated mitochondrial fragmentation, perinuclear redistribution of mitochondria, nuclear condensation and cytoplasmic shrinkage.
Dissections were performed on the right side of fish heads in order to expose morphological landmarks of functional importance for fish feeding.
The cell counting results showed that 96% of the cells displayed all the morphological landmarks of apoptosis in a 3 h-induction, whereas 92% of the cells regained their normal morphology after the wash in 24 h.
Due to the lack of reliable morphological landmarks on the posterior lobe, we used elliptic Fourier analysis (EFA) to describe outline shape (Kuhl and Giardina 1982; Ferson et al. 1985).
Note that budding marks initiation of cell division, and serves as a convenient morphological landmark for the G1/S transition.
Our immunohistochemical studies of the tentacles of H. magnipapillata provide morphological landmarks for correlating the expression of opsin and its biochemical signaling partners with cells that localize to battery complexes.
The following morphological landmarks for the localisation of the central region were used (see Fig. 1): Thickness sign : The precentral gyrus and its cortex layer are typically thicker than the postcentral gyrus.
After establishing the morphological landmarks for flower and fruit development in tomato, we superimposed the effect of SUN on fruit formation.
Of notice, another internal morphological landmark, β, reflecting the turn made by the peroneal nerve emerging from the sciatic nerve, did not exhibit significant differences between met d/d, met 2S/2S and met 2P/2P embryos, although significantly affected by the morphological changes in muscle shape compared to controls.
