Results 51 to 60 of about 2,381 (181)

Daily Heat Stress Induces Donor‐Side Limitation of PSI Via Downregulation of the Cyt b6f Complex

Plant, Cell &Environment, Volume 49, Issue 11, Page 8099-8111, November 2026.
ABSTRACT The rapidly warming climate is driving increasingly frequent and intense heat waves worldwide, posing major challenges to plant metabolism and growth. Despite the central role of photosynthesis in plant growth, the effects of prolonged heat stress on the primary reactions of photosynthesis remain poorly understood.
Laura Laihonen, Tutta Tomberg, Linda Vuorijoki, Lauri Nikkanen, Paula Mulo, Marjaana Rantala   +5 more
wiley   +1 more source

Crystallization of the Photosystem II core complex and its chlorophyll binding subunit CP43 from transplastomic plants of Nicotiana tabacum [PDF]

, 2010
Photosystem II from transplastomic plants of Nicotiana tabacum with a hexahistidine tag at the N-terminal end of the PsbE subunit (α-chain of the cytochrome b(559)) was purified according to the protocol of Fey et al. (BBA 12:1501-1509, 2008).
Claudia Buechel, Korza, H.J., Matthias Bochtler, Dario Piano, Haniewicz, Patrycja, Sabała, Izabela, Korza, Henryk J., Haniewicz, P., Renata Filipek, Alaoui, S., Patrycja Haniewicz, De Sanctis, D., Buechel, C., Korza, H. J., Piano, D., Sanctis, D., Filipek, R., Bochtler, M., El Alaoui, S., Filipek, Renata, Daniele De Sanctis, Henryk J. Korza, Buechel, Claudia, DE SANCTIS, DANIELE, El Alaoui, Sabah, Izabela Sabala, Bochtler, Matthias, Sabala, I., Sabah El Alaoui, Korza, H., PIANO, DARIO   +30 more
core   +1 more source

Uncovering the role of the PPR protein PHOTOSYSTEM ONE BIOGENESIS FACTOR6 in splicing chloroplast group II introns

Journal of Integrative Plant Biology, Volume 68, Issue 10, Page 3809-3829, October 2026.
The P‐class pentatricopeptide repeat (PPR) protein PHOTOSYSTEM ONE BIOGENESIS FACTOR (PBF6) forms splicing complexes with other known splicing factors to facilitate chloroplast intron splicing. PBF6 cooperates with other PPR splicing factors to promote the splicing of the same intron through forming respective splicing complexes.
Mengyu Li, Mengwei Sun, Jinlian Lv, Mingming Song, Siyu Lu, Aihong Zhang, Congming Lu   +6 more
wiley   +1 more source

The Psb27 Assembly Factor Binds to the CP43 Complex of Photosystem II in the Cyanobacterium Synechocystis sp. PCC 6803      

, 2011
We have investigated the location of the Psb27 protein and its role in photosystem (PS) II biogenesis in the cyanobacterium Synechocystis sp. PCC 6803. Native gel electrophoresis revealed that Psb27 was present mainly in monomeric PSII core complexes but
Jana Knoppová, Jianfeng Yu, Roman Sobotka, Marko Boehm, Joerg Nickelsen, Jana Kopečná, Josef Komenda, Peter J. Nixon, Petr Halada   +8 more
core   +1 more source

Localization of the CyanoP binding site on Photosystem II by surface plasmon resonance spectroscopy

Frontiers in Plant Science, 2014
Photosystem II (PSII), a large multi subunit membrane protein complex localized in the thylakoid membrane of cyanobacteria and chloroplasts, is the only known enzyme that catalyzes the light driven oxidation of water.
Kai U Cormann, Maik eBartsch, Matthias eRögner, Marc M Nowaczyk   +3 more
doaj   +1 more source

Pathways for Energy Transfer in the Core Light-Harvesting Complexes CP43 and CP47 of Photosystem II [PDF]

Biophysical Journal, 2002
The pigment-protein complexes CP43 and CP47 transfer excitation energy from the peripheral antenna of photosystem II toward the photochemical reaction center. We measured the excitation dynamics of the chlorophylls in isolated CP43 and CP47 complexes at 77 K by time-resolved absorbance-difference and fluorescence spectroscopy.
de Weerd, F.L., van Stokkum, I.H.M., van Amerongen, H., Dekker, J.P., van Grondelle, R.   +4 more
openaire   +2 more sources

Time-resolved absorption and emission show that the CP43' antenna ring of iron-stressed synechocystis sp. PCC6803 is efficiently coupled to the photosystem I reaction center core.

, 2003
Excitation energy transfer and trapping processes in an iron stress-induced supercomplex of photosystem I from the cyanobacterium Synechocystis sp.
Blankenship, R.E., Bibby, T.S., Melkozernov, A.N., Lin, S., Barber, J.   +4 more
core   +1 more source

CurT dosage quantitatively affects thylakoid structure and PSII performance in Synechocystis sp. PCC 6803

The Plant Journal, Volume 127, Issue 6, September 2026.
SUMMARY The photosynthetic thylakoid membrane systems of many oxygenic photosynthesizers form elaborate three‐dimensional structures. Curvature Thylakoid (CurT/CURT1) proteins are central regulators of thylakoid architecture in cyanobacteria and plants, driving both grana stacking and the formation of thylakoid convergence zones (TCZs) by promoting ...
Matthias Ostermeier, Anne‐Christin Pohland, Patrick Reinmöller, Marcel Dann   +3 more
wiley   +1 more source

Phycobilisomes: modular light‐harvesting systems of cyanobacteria and red algae

The Plant Journal, Volume 127, Issue 3, August 2026.
SUMMARY Phycobilisomes (PBSs) are supramolecular pigment–protein complexes that function as the principal light‐harvesting antennae in cyanobacteria, red algae (Rhodophyta), and glaucophytes, and to a lesser extent in cryptophytes. Because the intrinsic chlorophyll‐based antennae of the photosystems absorb poorly in the green region of the spectrum ...
Henning Kirst, María Agustina Domínguez‐Martín   +1 more
wiley   +1 more source

Mutational analysis of the stability of Psb27 from Synechocystis sp. PCC 6803:implications for models of Psb27 structure and binding to CP43

, 2013
Psb27 associates with the CP43 subunit of photosystem II during biogenesis of the photosystem. Several models have been proposed for the interaction between Psb27 and CP43.
Wilbanks, Sigurd M, Mabbitt, Peter D, Eaton-Rye, Julian J   +2 more
core   +1 more source