Results 41 to 50 of about 14,468 (156)

A potential cyanobacterial ancestor of Viridiplantae chloroplasts [PDF]

open access: yes, 2011
The theory envisaging the origin of plastids from endosymbiotic cyanobacteria is well-established but it is difficult to explain the evolution (spread) of plastids in phylogenetically diverse plant groups.
Jaideb Chatterjee   +5 more
core   +1 more source

Phycocyanobilin biosynthesis in Galdieria sulphuraria requires isomerization of phycoerythrobilin synthesized by bilin reductases

open access: yesThe FEBS Journal, EarlyView.
The biosynthesis of bilins, tetrapyrroles essential for light harvesting and sensing, is performed by specific enzymes (FDBRs). In Galdieria sulphuraria, both phycobiliprotein types bind phycocyanobilin, despite lacking the canonical synthesizing gene PCYA. Instead, PEBA and PEBB are encoded, producing phycoerythrobilin, proposed to be later isomerized
Federica Frascogna   +4 more
wiley   +1 more source

How Mitochondrial Signaling Games May Shape and Stabilize the Nuclear-Mitochondrial Symbiosis

open access: yesBiology
The eukaryotic lineage has enjoyed a long-term “stable” mutualism between nucleus and mitochondrion, since mitochondrial endosymbiosis began about 2 billion years ago.
Will Casey   +3 more
doaj   +1 more source

Biological invasions and endosymbiosis in Arthropods, a case study:Bemisia tabaci : S1403TH01 Invasive Species and Quarantine [PDF]

open access: yes, 2012
Biological invasions are more and more frequent worldwide and understanding this process is a big issue. Invasive success depends on several traits permitting local adaptation.
Becker, Nathalie   +4 more
core  

Nucleomorph phylogenomics suggests a deep and ancient origin of cryptophyte plastids within Rhodophyta

open access: yesNew Phytologist, EarlyView.
Summary The evolutionary origin of red algae‐derived complex plastids remains obscure. Cryptophyta, one of four eukaryotic lineages harboring these plastids, still contains nucleomorphs, which are highly reduced remnants of red algal nuclei. The genes present on nucleomorph genomes can be used for phylogenomic reconstruction in order to unravel the ...
Lukáš V. F. Novák   +6 more
wiley   +1 more source

Nutrient Deficiency Promotes the Entry of Helicobacter pylori Cells into Candida Yeast Cells

open access: yesBiology, 2021
Helicobacter pylori, a Gram-negative bacterium, has as a natural niche the human gastric epithelium. This pathogen has been reported to enter into Candida yeast cells; however, factors triggering this endosymbiotic relationship remain unknown. The aim of
Kimberly Sánchez-Alonzo   +7 more
doaj   +1 more source

Analysis of horizontal genetic transfer in red algae in the post-genomics age [PDF]

open access: yes, 2013
The recently published genome of the unicellular red alga revealed a gene-rich, intron-poor species, which is surprising for a free-living mesophile. Of the 8,355 predicted protein-coding regions, up to 773 (9.3%) were implicated in horizontal genetic ...
Bhattacharya, Debashish   +1 more
core   +1 more source

Beyond red/far‐red sensing: phytochrome perception of the marine light field by microalgae

open access: yesNew Phytologist, EarlyView.
Summary Phytochromes (PHYs) are a major group of photoreceptors, described as red and far‐red light sensors in land plants. Recent genomic and metagenomic explorations have revealed the presence of PHYs also in various eukaryotic microalgae originating from distinct endosymbiotic events.
Carole Duchêne   +2 more
wiley   +1 more source

Perspectives on Endosymbiosis in Coralloid Roots: Association of Cycads and Cyanobacteria

open access: yesFrontiers in Microbiology, 2019
Past endosymbiotic events allowed photosynthetic organisms to flourish and evolve in terrestrial areas. The precursor of chloroplasts was an ancient photosynthetic cyanobacterium.
Aimee Caye G. Chang   +5 more
doaj   +1 more source

A Specific Sinorhizobium Flagellin Suppresses Legume Nodulation Through Immune Activation

open access: yesPlant Biotechnology Journal, EarlyView.
ABSTRACT Bacterial flagellin‐activated immunity plays a crucial role in shaping plant‐microbe interactions, leading to either parasitism, mutualism, or commensalism. In the legume‐rhizobium symbiosis, while it has been hypothesized that rhizobial infection involves avoidance of plant immunity following flagellin perception, direct evidence supporting ...
Li Liu   +8 more
wiley   +1 more source

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