Partitioning of absorbed light energy within photosystem II in barley can be affected by chloroplast movement

Journal of Photochemistry and Photobiology. B, Biology
J SemerM Navrátil

Abstract

Plants have developed many ways to protect reaction centres of photosystems against overexcitation. One of the mechanisms involves reduction of the leaf absorption cross-section by light-induced chloroplast avoidance reaction. Decrease in the probability of photon absorption by the pigments bound within photosystem II (PSII) complexes leads to the increase in quantum yield of PSII photochemistry (ΦPSII). On the other hand, the decrease of PSII excitation probability causes reduction of chlorophyll a fluorescence intensity which is manifested as the apparent increase of determined quantum yield of regulated light-induced non-photochemical quenching (ΦNPQ). Absorption of different light intensity by phototropins led to the different chloroplast distribution within barley leaves, estimated by measurement of the leaf transmittance. Due to a weak blue light used for transmittance measurements, leaves exposed to actinic light with wavelengths longer than 520 nm undergo chloroplast accumulation reaction, in contrast with leaves exposed to light with shorter wavelengths, that showed a different extent of chloroplast avoidance reaction. Based on the ΦNPQ action spectra measured simultaneously with the transmittance, the influence of dif...Continue Reading

References

May 24, 2001·Proceedings of the National Academy of Sciences of the United States of America·T SakaiK Okada
Dec 20, 2002·Nature·Masahiro KasaharaMasamitsu Wada
Oct 18, 2005·Photosynthesis Research·David M KramerGerald E Edwards
Jul 7, 2009·Annual Review of Plant Biology·Zhirong LiKrishna K Niyogi
Feb 23, 2010·Journal of Plant Physiology·Olga SztatelmanHalina Gabryś
Aug 9, 2011·Plant, Cell & Environment·Phillip A DavisRoger P Hangarter
Feb 9, 2012·Journal of Experimental Botany·Agnieszka Katarzyna BanaśHalina Gabryś
May 25, 2012·The Plant Cell·Sander W HogewoningJeremy Harbinson
Jul 16, 2013·Plant Science : an International Journal of Experimental Plant Biology·Masamitsu Wada
Dec 18, 2013·Biochimica Et Biophysica Acta·Agu LaiskLuca Dall'Osto
Dec 18, 2013·Biochimica Et Biophysica Acta·Sam-Geun Kong, Masamitsu Wada
Dec 18, 2014·Plant & Cell Physiology·John M ChristieStuart Sullivan
Jan 9, 2015·Journal of Plant Physiology·Dušan Lazár
Nov 21, 2015·Plant, Cell & Environment·Takeshi Higa, Masamitsu Wada
Mar 11, 2016·Journal of Plant Research·Terashima IchiroOguchi Riichi

❮ Previous
Next ❯

Citations

Oct 24, 2019·Annals of Botany·Alexandrina StirbetGovindjee Govindjee

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.