Home pageNewly on Gate2BiotechHow plants defend against light stress?

How plants defend against light stress?

Date: 11.1.2013 

Chloroplasts behave like solar powerplant of plant cell - the energy of Sun transform to “fuel” (sacharids) needed for plant to life. Likewise classiccal powerplant, there are also some unintended toxic side products causing damage which needs to be repared continuously.

Study published in the PNAS journal recovered, that light stress induces structural changes in chloroplasts improving the speed of repair processes. By this way, chloroplasts can continue to store the energy of Sun with similar efficiency thus avoiding possible constraints, damage, or even the death of plant.


Herbstová Miroslava, Tietz S., Kinzel Ch., Turkina M.V., Kirchhoff H.: Architectural switch in plant photosynthetic membranes induced by light stress. Proceedings of the National Academy of Sciences of the United States of America on-line first: , 2012.
http://dx.doi.org/10.1073/pnas.1214265109

Autor: Biology Centre of the Academy of Sciences of the Czech Republic, v. v. i.


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