Results 71 to 80 of about 6,484 (226)

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

Journal of Integrative Plant Biology, EarlyView.
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

Advances in high‐resolution cryo‐volume electron microscopy (cvEM) imaging for unicellular and multicellular organisms

Journal of Microscopy, EarlyView.
Abstract Cryo‐Focused Ion Beam Scanning Electron Microscopy (cryoFIB‐SEM) using samples fixed by high‐pressure freezing uniquely enables high‐resolution cryo‐volume Electron Microscope (cvEM) images of cell ultrastructure to be obtained from whole cells and complex tissues in their near native state. As the freezing process also preserves fluorescence,
Maryna Kobylynska, Daniel Nicholls, Zoe Broad, Jack Wells, Alex Robinson, Stefania Marcotti, Damien McGrouther, Ch'ng Q‐L, Genoveva Esteban, Nigel Browning, Roland Fleck   +10 more
wiley   +1 more source

Effect of kinetin and chloramphenicol on chlorophyll synthesis and chloroplast development in detached lupin cotyledons under low light intensity

Acta Societatis Botanicorum Poloniae, 2015
Chlorophyll synthesis in detached lupin cotyledons under low light intensity was stimulated by kinetin at 20 mg/l and inhibited by chloramphenicol at 50 mg/1.
Fortunat Młodzianowski, Ewa Gezela
doaj   +1 more source

Evolution of Thylakoid Structural Diversity

Annual Review of Cell and Developmental Biology
Oxygenic photosynthesis evolved billions of years ago, becoming Earth's main source of biologically available carbon and atmospheric oxygen. Since then, phototrophic organisms have diversified from prokaryotic cyanobacteria into several distinct clades of eukaryotic algae and plants through endosymbiosis events.
Annemarie, Perez-Boerema, Benjamin D, Engel, Wojciech, Wietrzynski   +2 more
openaire   +2 more sources

Heat‐evolved coral photosymbionts exhibit dampened stress responses across distinct physiological contexts

New Phytologist, EarlyView.
Summary Experimental evolution under elevated temperatures has generated heat‐evolved (HE) strains of Symbiodiniaceae that enhance coral bleaching tolerance. However, the biomolecular mechanisms underlying this resilience remain poorly understood. We conducted a laboratory heat‐stress experiment and applied synchrotron‐based Fourier transform infrared (
Bede G. Johnston, Madeline R. Garing, Annaleise R. Klein, Wing Yan Chan, Matthew R. Nitschke, Madeleine J. H. van Oppen   +5 more
wiley   +1 more source

Ultrastructural changes in chloroplasts of mesophyll cells of chlorotic and prematurely yellowed leaves of Betula pendula Rothr

Acta Societatis Botanicorum Poloniae, 2011
The ultrastructure of chloroplasts was studied in mesophyll cells of the leaves of silver birch (Betula pendula) showing interveinal chlorosis or premature yellowing, in comparison with leaves without symptoms or exhibiting symptoms of natural senescence.
Krystyna Przybył, Krystyna Idzikowska
doaj   +1 more source

The algal homolog of the plant CER1 and CER3 proteins is a bifunctional hydrocarbon‐forming enzyme

New Phytologist, EarlyView.
Schematic representation of the proposed reactions carried out by a CER1/3 protein from green algae. CoA, coenzyme A; CTD, C‐terminal domain; Cys, catalytic cysteine of C‐terminal domain; His, catalytic histidines of N‐terminal domain; NTD, N‐terminal domain.
Ángel Baca‐Porcel, Bertrand Légeret, Alexandre Six, Mallaury Cabanel, Mathilde Le Cossec, Arthur Guegano, Damien Sorigué, Yonghua Li‐Beisson, Florian Veillet, Fred Beisson   +9 more
wiley   +1 more source

Diclofenac Interacts with Photosynthetic Apparatus: Isolated Spinach Chloroplasts and Thylakoids as a Model System

Plants
Diclofenac, often detected in environmental samples, poses a potential hazard to the aquatic environment. The present study aimed to understand the effect of this drug on photosynthetic apparatus, which is a little-known aspect of its phytotoxicity ...
Monika Majewska, Małgorzata Kapusta, Anna Aksmann   +2 more
doaj   +1 more source

Plant Carbonic Anhydrases, their Role in Stress Defense and Possible Practical Use [PDF]

Journal of Stress Physiology & Biochemistry, 2018
The review presents data on the distribution of carbonic anhydrases in photosynthetic organisms and their location in cellular compartments. The functions of carbonic anhydrases to provide a high photosynthesis rate as well as their participation in ...
Rudenko N.N., Ignatova L.K., Zhurikova E.M., Novichkova N.S., Ivanov B.N.   +4 more
doaj  

Correlation between spatial (3D) structure of pea and bean thylakoid membranes and arrangement of chlorophyll-protein complexes

BMC Plant Biology, 2012
Background The thylakoid system in plant chloroplasts is organized into two distinct domains: grana arranged in stacks of appressed membranes and non-appressed membranes consisting of stroma thylakoids and margins of granal stacks.
Rumak Izabela, Mazur Radosław, Gieczewska Katarzyna, Kozioł-Lipińska Joanna, Kierdaszuk Borys, Michalski Wojtek P, Shiell Brian J, Venema Jan, Vredenberg Wim J, Mostowska Agnieszka, Garstka Maciej   +10 more
doaj   +1 more source