Influence of clinorotation and micro gravity on ultrastructure and functions of plant cell nucleoli

Sobol', MA
Kosm. nauka tehnol. 2001, 7 ;(Supplement1):183-186
Publication Language: Ukrainian
Influence of the clinorotation on the growing of Lepidium sativum plants during two days has been studied. It has been shown that altered gravity causes irregular growth of the plants at organism level and certain ultrastructural alterations of root meristem cell nucleoli at subcellular level. It has been suggested that altered gravity causes decrease of nucleolus functional activity in root cells on different levels. This decrease can be excited with general alterations of cell metabolism under clinorotation, in particular, happen due to altered gravity effect on the protein-synthesizing apparatus and on the nucleolus as its most important link.