Sentences with word «photoprotection»

Researchers at the Department of Energy's Lawrence Berkeley National Laboratory (Berkeley Lab) are working to understand — and manipulate — plant photoprotection mechanisms, such as a process called NPQ, or nonphotochemical quenching, which helps dissipate excess light energy inside chloroplasts.

Photoprotection by window glass, automobile glass, and sunglasses.

«By manipulating photoprotection in plants, it may be possible to improve the efficiency of photosynthesis, and one potential outgrowth of that is higher crop productivity,» said Krishna Niyogi, a faculty scientist in Berkeley Lab's Division of Molecular Biophysics and Integrative Bioimaging and a UC Berkeley professor of plant and microbial biology.

Half of crop photosynthesis occurs in the shade, so any improvement in speeding up recovery from photoprotection could have a big benefit, the researchers said.

The researchers said the CVDE enzyme could be used to optimize photoprotection and thereby improve photosynthesis and crop productivity.

When there is too much sunlight, the photosynthetic machinery in chloroplasts can be damaged, so plants need photoprotection.

Heinrich U, Moore CE, De Spirt S, Tronnier H, Stahl W. «Green tea polyphenols provide photoprotection, increase microcirculation, and modulate skin properties of women.»

They concluded that «our study has shown that turmeric as available does not offer significant photoprotection», but that's irrelevant; what matters is that we've discredited the old fears.

Niyogi and his postdoctoral research associates Lauriebeth Leonelli, Stéphane Gabilly, and Masakazu Iwai figured out a way to speed up recovery from photoprotection and demonstrated a proof of this concept in the laboratory.

Photoprotection: A review of the current and future technologies.

The gene restores the photoprotection capacity of the plant.

Niyogi and a postdoctoral researcher in his lab, Zhirong Li, recently identified a target in the photoprotection mechanism by studying the unicellular green alga Chlamydomonas reinhardtii, which is widely used as a model organism to study photosynthesis.

«This chloroplast protein is necessary for a sustained type of photoprotection,» said study principal investigator Krishna Niyogi, a faculty scientist in Berkeley Lab's Molecular Biophysics and Integrated Bioimaging Division.

«Evidence is accumulating that dietary changes and special nutrients may help to reduce oxidative stress, free radical formation and thereby slow down the skin damage process,» they write, noting that while the primary treatment of photoaging is photoprotection, «secondary treatment could be achieved with the use of antioxidants.»