Some changes in the subcellular structure of root cells of Phaseolus vulgaris as a result of cessation of aeration in the root medium

Following cessation of aeration of the nutrient solution several effects could be observed in cells of the root tips of bean plants: Starch grains disappeared from the amyloplasts; small electron dense bodies, probably lipids, were formed and the rough endoplasmatic reticulum showed concentric arrangements. The internal structure of the mitochondria seemed unaffected.