( C) in association with a Polish scient...)Protein behind autumn color splendor identified

C), in association with a Polish scientist, has identified a protease that degrades LHCII. The researchers assumed that the protease belonged to a certain family of proteases, the so-called FtsH proteases, and they used genetically modified mouse-ear cress plants in which various FtsH proteases had been removed. One of these plants had a severely impaired ability to degrade LHCII. This led the researchers to conclude that the protease FtsH6 helps degrade LHCII.

The article is titled "AtFtsH6 is involved in the degradation of the light harvesting complex II during high light acclimation and senescence." The authors are Agnieszka Zelisko, Maribel Garcia-Lorenzo, Grzegorz Jackowski, Stefan Jansson, and Christiane Funk. Grzegorz Jackowski works at Adam Mickiewicz University in Poznan; among the UPSC scientists, Stefan Jansson works at the Department of Plant Physiology and the others at the Department of Biochemistry. The article is being published this week in the Early Edition articles of Proceedings of the National Academy of Sciences of the USA ( http://www.pnas.org/papbyrecent.shtml).

Ume?Plant Science Center, UPSC, was established in 1999 in collaboration between the Department of Plant Physiology at Umea University and the Department of Forest Genetics and Plant Physiology at the Swedish University of Agricultural Sciences (SLU) in Umea.

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Source:Swedish Research Council


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