In vivo reorganization of the actin cytoskeleton in leaves of Nicotiana tabacum L. transformed with plastin-GFP. Correlation with light-activated chloroplast responses |
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| Authors: | Anna Anielska-Mazur Tytus Berna? Halina Gabry? |
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| Affiliation: | (1) Department of Plant Physiology and Biochemistry, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Gronostajowa 7, 30-387 Krak?w, Poland;(2) Department of Plant Anatomy and Cytology, Faculty of Biology and Environmental Protection, Silesian University, Jagiellońska 26/28, 40-032 Katowice, Poland |
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| Abstract: | Background The actin cytoskeleton is involved in the responses of plants to environmental signals. Actin bundles play the role of tracks in chloroplast movements activated by light. Chloroplasts redistribute in response to blue light in the mesophyll cells of Nicotiana tabacum. The aim of this work was to study the relationship between chloroplast responses and the organization of actin cytoskeleton in living tobacco cells. Chloroplast movements were measured photometrically as changes in light transmission through the leaves. The actin cytoskeleton, labeled with plastin-GFP, was visualised by confocal microscopy. |
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