What is psbA gene?
The psbA (encoding D1 protein) plays an important role in protecting photosystem II (PSII) from oxidative damage in higher plants. In our previous study, the role of the psbA from maize (Zea mays. L) in response to SO2 stress was characterized.
What does the D1 protein do?
The D1 protein represents a key subunit of photosystem II (PSII), a multicomponent pigment–protein complex of oxygenic photosynthetic organisms (for recent review on PSII see [1]). The protein is encoded by the psbA gene that is usually present as a single copy in the chloroplast genome of algae and higher plants [2].
What are D1 and D2 proteins?
The D1 and D2 proteins occur as a heterodimer that form the reaction core of PSII, a multisubunit protein-pigment complex containing over forty different cofactors, which are anchored in the cell membrane in cyanobacteria, and in the thylakoid membrane in algae and plants.
What is D2 protein?
The D2 protein is similar in size to D1, and shares 27% primary sequence identity with it, but only the D1 side of the reaction center core is active in electron transfer. Each protein has five transmembrane units and together they form a heterodimer that binds the cofactors of electron transfer.
What is D1 in science?
Dopamine receptor D1, a protein. Haplogroup D1 (Y-DNA) Vitamin D1, a form of Vitamin D. DI, Iodothyronine deiodinase type I, an enzyme involved with thyroid hormones.
What protein is used in photosynthesis?
Both copper- and iron-containing proteins function in electron transport between water and the final electron-acceptor molecule of the light stage of photosynthesis, an iron-containing protein called ferredoxin. Ferredoxin is a soluble component in the chloroplasts.
What is D1 and D2?
D1, D2, and D3 stand for Divisions 1, 2, and 3, which are athletics leagues run by the National Collegiate Athletic Association, or NCAA. These are the leagues that most colleges in the United States compete in.
What is FD in photosynthesis?
Ferredoxin (Fd) is a small [2Fe-2S] cluster-containing protein found in all organisms performing oxygenic photosynthesis.
What is D1 and D2 in photosynthesis?
Where does Z scheme occur?
Light-Dependent Reactions (Z Scheme) (Neațu et al., 2014) Light-dependent reactions happen in the thylakoid membrane of the chloroplasts and occur in the presence of sunlight. The sunlight is converted to chemical energy during these reactions.
What does D1 do in photosynthesis?
At the core of the PSII reaction centre is a heterodimer made of two proteins, D1 and D2, with their redox cofactors1,2. The D1 protein is characterized by a rapid, photon-flux-dependent turn-over3,4 and directly mediates photosynthetic electron transport and oxygen evolution1,5.
Is D2 worse than D3?
D2 has some pretty solid teams and athletes, but the schools tend to be a little smaller and have lower budgets. D3 is the lowest division and it is comprised of many small private universities with fairly low budgets. These schools prides themselves on having “true” student-athletes.
Which is better D1 D2 or D3?
Differences between D1, D2, and D3 D1 is the most competitive and intense, while D3 is the least. D1 athletes’ college experience will be defined by their athletics. Meanwhile, D3 athletes will probably spend less of their time playing and practicing, though it is still a big commitment.
What does PQ stand for in photosynthesis?
Plastoquinone (PQ) is an isoprenoid quinone molecule involved in the electron transport chain in the light-dependent reactions of photosynthesis.
What is the significance of Z scheme?
The Z scheme shows the pathway of electron transfer from water to NADP+. Using this pathway, plants transform light energy into “electrical” energy (electron flow) and hence into chemical energy as reduced NADPH and ATP.
Why is it called Z scheme?
So, the correct option is ‘It links the two photosystems in a way that resembles the letter Z’.