Results 11 to 20 of about 29,167 (258)

Endosymbiotic ratchet accelerates divergence after organelle origin

BioEssays, Volume 45, Issue 1, January 2023., 2023
Primary endosymbiosis gave rise to mitochondria and plastids. The proximate impacts of organelle origin on lineage evolution have not been addressed at the population level. Using data from the photosynthetic amoeba Paulinella, we hypothesize that primary endosymbiosis accelerates lineage divergence, a process we refer to as the endosymbiotic ratchet ...
Debashish Bhattacharya, Julia Van Etten, L. Felipe Benites, Timothy G. Stephens   +3 more
wiley   +1 more source

A multifaceted analysis reveals two distinct phases of chloroplast biogenesis during de-etiolation in Arabidopsis

eLife, 2021
Light triggers chloroplast differentiation whereby the etioplast transforms into a photosynthesizing chloroplast and the thylakoid rapidly emerges. However, the sequence of events during chloroplast differentiation remains poorly understood. Using Serial
Rosa Pipitone, Simona Eicke, Barbara Pfister, Gaetan Glauser, Denis Falconet, Clarisse Uwizeye, Thibaut Pralon, Samuel C Zeeman, Felix Kessler, Emilie Demarsy   +9 more
doaj   +1 more source

FZL, a dynamin-like protein localized to curved grana edges, is required for efficient photosynthetic electron transfer in Arabidopsis

Frontiers in Plant Science, 2023
Photosynthetic electron transfer and its regulation processes take place on thylakoid membranes, and the thylakoid of vascular plants exhibits particularly intricate structure consisting of stacked grana and flat stroma lamellae. It is known that several
Yu Ogawa, Megumi Iwano, Toshiharu Shikanai, Wataru Sakamoto   +3 more
doaj   +1 more source

Resonant Tunneling in Natural Photosynthetic Systems [PDF]

, 2021
The high internal quantum efficiency observed in higher plants remains an outstanding problem in understanding photosynthesis. Several approaches such as quantum entanglement and quantum coherence have been explored. However, none has yet drawn an analogy between superlattices and the geometrical structure of granal thylakoids in leaves. In this paper,
arxiv   +1 more source

Arabidopsis EGY1 Is Critical for Chloroplast Development in Leaf Epidermal Guard Cells

Plants, 2021
In Arabidopsis thaliana, the Ethylene-dependent Gravitropism-deficient and Yellow-green 1 (EGY1) gene encodes a thylakoid membrane-localized protease involved in chloroplast development in leaf mesophyll cells. Recently, EGY1 was also found to be crucial
Alvin Sanjaya, Ryohsuke Muramatsu, Shiho Sato, Mao Suzuki, Shun Sasaki, Hiroki Ishikawa, Yuki Fujii, Makoto Asano, Ryuuichi D. Itoh, Kengo Kanamaru, Sumie Ohbu, Tomoko Abe, Yusuke Kazama, Makoto T. Fujiwara   +13 more
doaj   +1 more source

The Role of Phosphorylation Dynamics of CURVATURE THYLAKOID 1B in Plant Thylakoid Membranes [PDF]

Plant Physiology, 2019
Thylakoid membranes in land plant chloroplasts are organized into appressed and nonappressed membranes, which contribute to the control of energy distribution between the two photosystems (PSI and PSII) from the associated light-harvesting complexes (LHCs).
Andrea Trotta, Azfar Ali Bajwa, Ilaria Mancini, Virpi Paakkarinen, Mathias Pribil, Eva-Mari Aro   +5 more
openaire   +4 more sources

Thylakoid Protein Phosphorylation in Chloroplasts

Plant and Cell Physiology, 2021
Abstract Because of their abundance and extensive phosphorylation, numerous thylakoid proteins stand out amongst the phosphoproteins of plants and algae. In particular, subunits of light-harvesting complex II (LHCII) and of photosystem II (PSII) are dynamically phosphorylated and dephosphorylated in response to light conditions and ...
Fiamma Paolo Longoni, Michel Goldschmidt-Clermont   +1 more
openaire   +4 more sources

The impact of physiologically relevant temperatures on physical properties of thylakoid membranes: a molecular dynamics study

Photosynthetica, 2023
Thylakoid membranes are energy-converting membranes with a unique lipid composition. Though the membranes are primarily composed of proteins, their photosynthetic function is strongly influenced by the lipid constituents.
B. FEHÉR, I.K. VOETS, G. NAGY
doaj   +1 more source

An Imported Thylakoid Protein Accumulates in the Stroma When Insertion into Thylakoids is Inhibited [PDF]

Journal of Biological Chemistry, 1989
The light-harvesting chlorophyll a/b protein (LHCP) is synthesized in the cytosol as a precursor (pLHCP) that is imported into chloroplasts and assembled into thylakoid membranes. Under appropriate conditions, either pLHCP or LHCP will integrate into isolated thylakoids.
P V Viitanen, Kenneth Cline, D R Fulsom
openaire   +2 more sources

Coral Holobionts Possess Distinct Lipid Profiles That May Be Shaped by Symbiodiniaceae Taxonomy

Marine Drugs, 2022
Symbiotic relationships are very important for corals. Abiotic stressors cause the acclimatization of cell membranes in symbionts, which possess different membrane acclimatization strategies. Membrane stability is determined by a unique lipid composition
Tatyana V. Sikorskaya, Ekaterina V. Ermolenko, Kseniya V. Efimova, Ly T. P. Dang   +3 more
doaj   +1 more source