Plants and algae often absorb too much light—more than they can actually use in
photosynthesis. To prevent photo-oxidative damage and to acclimate to changes in their …

Plant cells store genetic information in the genomes of three organelles: the nucleus, plastid,
and mitochondrion. The nucleus controls most aspects of organelle gene expression …

While the chemical nature of reactive oxygen species (ROS) dictates that they are potentially
harmful to cells, recent genetic evidence suggests that in planta purely physicochemical …

In plants, hydrogen peroxide (H2O2) plays a major signaling role in triggering both a
defense response and cell death. Increased cellular H2O2 levels and subsequent redox …

MicroRNAs (miRNAs) are small, non‐coding RNAs that play critical roles in post‐
transcriptional gene regulation. In plants, mature miRNAs pair with complementary sites on …

Exposure to high irradiance results in dramatic changes in nuclear gene expression in
plants. However, little is known about the mechanisms by which changes in irradiance are …

In plants, excess light has the potential to damage the photosynthetic apparatus. The
damage is caused in part by reactive oxygen species (ROS) generated by electrons leaking …

NADPH: protochlorophyllide oxidoreductase (POR) catalyzes the light-dependent reduction
of protochlorophyllide. To elucidate the physiological function of three differentially regulated …

We conducted a series of experiments to assess the effects of oxidative stress on chlorophyll
biosynthesis in the vascular plant Cucumis sativus (cucumber). Specifically, cucumber …

Abstract Background In Arabidopsis thaliana (L.) Heynh and Oryza sativa L., a large number
of genes encode proteins of unknown functions, whose characterization still remains one of …