Multiple Photolyases Protect the Marine Cyanobacterium Synechococcus from Ultraviolet Radiation

Autor: Allissa M. Haney, Joseph E. Sanfilippo, Laurence Garczarek, Frédéric Partensky, David M. Kehoe

Publikováno v: mBio, Vol 13, Iss 4 (2022)

ABSTRACT Marine cyanobacteria depend on light for photosynthesis, restricting their growth to the photic zone. The upper part of this layer is exposed to strong UV radiation (UVR), a DNA mutagen that can harm these microorganisms. To thrive in UVR-ri

Externí odkaz: https://doaj.org/article/7d236176ced643a2a1336a08189d01e9

Diversity and evolution of pigment types in marine $Synechococcus$ cyanobacteria

Autor: Théophile Grébert, Laurence Garczarek, Vincent Daubin, Florian Humily, Dominique Marie, Morgane Ratin, Alban Devailly, Gregory K Farrant, Isabelle Mary, Daniella Mella-Flores, Gwenn Tanguy, Karine Labadie, Patrick Wincker, David M Kehoe, Frédéric Partensky

Publikováno v: Genome Biology and Evolution
Genome Biology and Evolution, 2022, 14 (4), pp.evac035. ⟨10.1093/gbe/evac035⟩

Synechococcus cyanobacteria are ubiquitous and abundant in the marine environment and contribute to an estimated 16% of the ocean net primary productivity. Their light-harvesting complexes, called phycobilisomes (PBS), are composed of a conserved all

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bc93bfc9d4188d746a01c6ed6572b300
https://hal.science/hal-03641745/document

Chromatic Acclimation in Cyanobacteria: A Diverse and Widespread Process for Optimizing Photosynthesis

Autor: Frédéric Partensky, Laurence Garczarek, David M. Kehoe, Joseph E. Sanfilippo

Publikováno v: Annual Review of Microbiology
Annual Review of Microbiology, Annual Reviews, 2019, 73 (1), pp.407-433. ⟨10.1146/annurev-micro-020518-115738⟩

Chromatic acclimation (CA) encompasses a diverse set of molecular processes that involve the ability of cyanobacterial cells to sense ambient light colors and use this information to optimize photosynthetic light harvesting. The six known types of CA

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7ba1251b7ed5984303e9a42e9b3188cc
https://doi.org/10.1146/annurev-micro-020518-115738

Molecular bases of an alternative dual-enzyme system for light color acclimation of marine

Autor: Théophile, Grébert, Adam A, Nguyen, Suman, Pokhrel, Kes Lynn, Joseph, Morgane, Ratin, Louison, Dufour, Bo, Chen, Allissa M, Haney, Jonathan A, Karty, Jonathan C, Trinidad, Laurence, Garczarek, Wendy M, Schluchter, David M, Kehoe, Frédéric, Partensky

Publikováno v: Proc Natl Acad Sci U S A

Marine Synechococcus cyanobacteria owe their ubiquity in part to the wide pigment diversity of their light-harvesting complexes. In open ocean waters, cells predominantly possess sophisticated antennae with rods composed of phycocyanin and two types

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::08e3d69946265cb7866e0f6db9a86827
https://pubmed.ncbi.nlm.nih.gov/33627406

CpeT is the phycoerythrobilin lyase for Cys-165 on β-phycoerythrin from Fremyella diplosiphon and the chaperone-like protein CpeZ greatly improves its activity

Autor: Christina M. Kronfel, Suman Pokhrel, Jonathan A. Karty, Adam N. Bussell, David M. Kehoe, Kes Lynn Joseph, Adam A. Nguyen, Wendy M. Schluchter

Publikováno v: Biochimica et biophysica acta. Bioenergetics. 1861(12)

Bilin lyases are enzymes which ligate linear tetrapyrrole chromophores to specific cysteine residues on light harvesting proteins present in cyanobacteria and red algae. The lyases responsible for chromophorylating the light harvesting protein phycoe

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b7f7d0860059622240cbd1bed5699904
https://pubmed.ncbi.nlm.nih.gov/32777305