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PGR5 ensures photosynthetic control to safeguard photosystem I under fluctuating light conditions

, , , , , & show all
Article: e22741 | Received 01 Nov 2012, Accepted 01 Nov 2012, Published online: 06 Dec 2012

Figures & data

Figure 1. Mechanisms ensuring successful acclimation to either constant high light intensity or fluctuating light regime including short high light phases. Under constant high light the plant relies on a variety of protective mechanisms at the anatomical, chemical and molecular level. In contrast, these protective mechanisms are largely missing during short high light phases, and under these conditions PGR5-mediated photosynthetic control protects PSI from photodamage induced by a hyper-reduced electron transfer chain.

Figure 1. Mechanisms ensuring successful acclimation to either constant high light intensity or fluctuating light regime including short high light phases. Under constant high light the plant relies on a variety of protective mechanisms at the anatomical, chemical and molecular level. In contrast, these protective mechanisms are largely missing during short high light phases, and under these conditions PGR5-mediated photosynthetic control protects PSI from photodamage induced by a hyper-reduced electron transfer chain.

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