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Ultrastructure statocytes and cells of distal elongation zone of Arabidopsis thaliana under clinorotation

Romanchuk S.M.

 


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Results of the electron-microscopic investigation of root apices of Arabidopsis thaliana 3-, 5- and 7-days-old seedlings grown in the stationary conditions and under clinorotation are presented. It was shown the similarity in the root apex cell ultrastructure in control and under clinorotation. At the same time there were some differences in the ultrustructure of statocytes and the distal elongation zone under clinorotation. For the first time the sensitivity of ER-bodies, which are derivatives of GER and contain β-glucosidase, to the influence of simulated microgravity was demonstrated by increased quantity and area of ER-bodies at the cell section as well as by higher variability of their form under clinorotation. A degree of these changes correlated with the duration of clinorotation. On the basis of experimental data a protective role of ER-bodies in adaptation of plants to microgravity is supposed.

Tsitologiya i Genetika 2010, vol. 44, no. 6, pp. 3-8

E-mail: svet-romanchuk yandex.ru

Romanchuk S.M. Ultrastructure statocytes and cells of distal elongation zone of Arabidopsis thaliana under clinorotation, Tsitol Genet., 2010, vol. 44, no. 6, pp. 3-8.




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