The way in which the number and size of cells in an organ are determined poses a central challenge in our understanding of organ size control. Compensation is an unresolved phenomenon, whereby a decrease in cell proliferation below some threshold level triggers enhanced postmitotic cell expansion in leaf primordia. It suggests an interaction between these cellular processes during organogenesis...

In Parhyale hawaiensis, the first three divisions are holoblastic and asymmetric, resulting in an embryo comprised of eight cells-four macromeres and four micromeres. Lineage studies performed at this stage demonstrate that the progeny of each cell contribute to specific portions of different germ layers. However, it is not known if this lineage pattern means a given blastomere is committed to ...

arising of loss entitles the third party to the compensation. in this respect, more often than not, the entitlement of the third party finds its justification based on voluntary principles and sometimes based on involuntary ones. if the third party cannot find defense based on voluntary principles, he or she has to resort to involuntary ones. the possibility of multiple compensation methods cou...