A further interesting observation on the interaction between sugars and amylase gene expression comes from the shrunken-2 (sh-2) maize mutant.
Factors influencing early seedling vigor of shrunken-2 maize.
Yet, they are guided by exceedingly simple instructions - note how this part looks bigger, like a fracture, shrunken, has more holes.
Specifically, blebbing was observed in every field, and the surface between the tubercles appeared shrunken and withdrawn.
Prominent among these endosperm mutants are sugary (su), brittle-1 (bt-1) and shrunken-2 (sh-2).
The vitellus (v) was shrunken and the perivitelline space (pvs) was filled with spermatozoa.
Some cells were shrunken, whereas other cells were swollen, usually in combination with rupture of the plasma membrane.
The pericarp of sh-2 maize is often fractured due to its shrunken nature, limiting its ability to perform these functions.
