Arthur Grossman
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View article: Octadecanoids as emerging lipid mediators in cnidarian-dinoflagellate symbiosis
Octadecanoids as emerging lipid mediators in cnidarian-dinoflagellate symbiosis Open
Oxylipin signaling has been suggested as a potential mechanism for the inter-partner recognition and homeostasis regulation of cnidarian-dinoflagellate symbiosis, which maintains the ecological viability of coral reefs. Here we assessed th…
View article: Oxylipin signalling in a coral-dinoflagellate symbiosis
Oxylipin signalling in a coral-dinoflagellate symbiosis Open
The symbiotic relationship of cnidarians with dinoflagellates of the family Symbiodiniaceae is based on host-symbiont recognition processes and continuous molecular exchange between partners. However, the molecular signals involved are unr…
View article: Mitotic entry is controlled by the plant-specific phosphatase BSL1 and cyclin-dependent kinase B
Mitotic entry is controlled by the plant-specific phosphatase BSL1 and cyclin-dependent kinase B Open
Cell cycle regulation is well understood in opisthokonts (fungi and metazoans) but not in plants and Apicomplexa, as some cell cycle regulators are not conserved 1–3 . In opisthokonts, cell cycle progression requires dephosphorylation of c…
View article: Dihydroxyacetone phosphate generated in the chloroplast mediates the activation of TOR by CO <sub>2</sub> and light
Dihydroxyacetone phosphate generated in the chloroplast mediates the activation of TOR by CO <sub>2</sub> and light Open
Light and CO 2 assimilation activate the target of rapamycin (TOR) kinase in photosynthetic cells, but how these signals are transmitted to TOR is unknown. Using the green alga Chlamydomonas reinhardtii as a model system, we identified dih…
View article: Stability of the cnidarian–dinoflagellate symbiosis is primarily determined by symbiont cell-cycle arrest
Stability of the cnidarian–dinoflagellate symbiosis is primarily determined by symbiont cell-cycle arrest Open
The cnidarian–dinoflagellate symbiosis relies on the regulation of resident symbiont populations to maintain biomass stability; however, the relative importance of host regulatory mechanisms [cell-cycle arrest (CC), apoptosis (AP), autopha…
View article: The Influence of Symbiont Identity on the Proteomic and Metabolomic Responses of the Model Cnidarian Aiptasia to Thermal Stress
The Influence of Symbiont Identity on the Proteomic and Metabolomic Responses of the Model Cnidarian Aiptasia to Thermal Stress Open
We examined the effects of symbiont identity and heat stress on the host metabolome and proteome in the cnidarian–dinoflagellate symbiosis. Exaiptasia diaphana (‘Aiptasia’) was inoculated with its homologous (i.e., native) symbiont Breviol…
View article: Cyanobacteria and Chloroflexota cooperate to structure light-responsive biofilms
Cyanobacteria and Chloroflexota cooperate to structure light-responsive biofilms Open
Microbial mats are stratified communities often dominated by unicellular and filamentous phototrophs within an exopolymer matrix. It is challenging to quantify the dynamic responses of community members in situ as they experience steep gra…
View article: Octadecanoids as emerging lipid mediators in cnidarian-dinoflagellate symbiosis
Octadecanoids as emerging lipid mediators in cnidarian-dinoflagellate symbiosis Open
Oxylipin signaling has been suggested as a potential mechanism for the inter-partner recognition and homeostasis regulation of cnidarian-dinoflagellate symbiosis, which maintains the ecological viability of coral reefs. Here we assessed th…
View article: Distinct transcriptomic strategies underlie differential heat tolerance in Symbiodiniaceae symbionts
Distinct transcriptomic strategies underlie differential heat tolerance in Symbiodiniaceae symbionts Open
Dinoflagellate algae in the family Symbiodiniaceae, symbionts of many marine cnidarians are critical for the metabolic integrity of reef ecosystems, which are increasingly threatened by environmental stress. The resilience of the cnidarian…
View article: Abundant and active community members respond to diel cycles in hot spring phototrophic mats
Abundant and active community members respond to diel cycles in hot spring phototrophic mats Open
Photosynthetic microbial mats in hot springs can provide insights into the diel behaviors of communities in extreme environments. In this habitat, photosynthesis dominates during the day, leading to super-oxic conditions, with a rapid tran…
View article: Octadecanoids as emerging lipid mediators in cnidarian-dinoflagellate symbiosis
Octadecanoids as emerging lipid mediators in cnidarian-dinoflagellate symbiosis Open
Oxylipin signaling has been suggested as a potential mechanism for the inter-partner recognition and homeostasis regulation of cnidarian-dinoflagellate symbiosis, which maintains the ecological viability of coral reefs. Here we assessed th…
View article: Photosynthetic Electron Flows and Networks of Metabolite Trafficking to Sustain Metabolism in Photosynthetic Systems
Photosynthetic Electron Flows and Networks of Metabolite Trafficking to Sustain Metabolism in Photosynthetic Systems Open
Photosynthetic eukaryotes have metabolic pathways that occur in distinct subcellular compartments. However, because metabolites synthesized in one compartment, including fixed carbon compounds and reductant generated by photosynthetic elec…
View article: Dramatic changes in mitochondrial subcellular location and morphology accompany activation of the CO <sub>2</sub> concentrating mechanism
Dramatic changes in mitochondrial subcellular location and morphology accompany activation of the CO <sub>2</sub> concentrating mechanism Open
Dynamic changes in intracellular ultrastructure can be critical for the ability of organisms to acclimate to environmental conditions. Microalgae, which are responsible for ~50% of global photosynthesis, compartmentalize their Ribulose 1,5…
View article: Abundant and active community members respond to the diel cycle in hot spring phototrophic mats
Abundant and active community members respond to the diel cycle in hot spring phototrophic mats Open
Photosynthetic microbial mats in hot springs can provide insights into the diel behaviors of communities in extreme environments. In this habitat, photosynthesis dominates during the day, leading to super-oxic conditions, with a rapid tran…
View article: Illuminating microbial mat assembly: Cyanobacteria and Chloroflexota cooperate to structure light-responsive biofilms
Illuminating microbial mat assembly: Cyanobacteria and Chloroflexota cooperate to structure light-responsive biofilms Open
Microbial mats are stratified communities often dominated by unicellular and filamentous phototrophs within an exopolymer matrix. It is challenging to quantify the dynamic responses of community members in situ as they experience steep gra…
View article: Lighting the way: Compelling open questions in photosynthesis research
Lighting the way: Compelling open questions in photosynthesis research Open
Photosynthesis—the conversion of energy from sunlight into chemical energy—is essential for life on Earth. Yet there is much we do not understand about photosynthetic energy conversion on a fundamental level: how it evolved and the extent …
View article: Evidence of a putative CO <sub>2</sub> delivery system to the chromatophore in the photosynthetic amoeba <i>Paulinella</i>
Evidence of a putative CO <sub>2</sub> delivery system to the chromatophore in the photosynthetic amoeba <i>Paulinella</i> Open
The photosynthetic amoeba, Paulinella provides a recent (ca. 120 Mya) example of primary plastid endosymbiosis. Given the extensive data demonstrating host lineage‐driven endosymbiont integration, we analysed nuclear genome and transcripto…
View article: Alternative electron pathways of photosynthesis power green algal CO2 capture
Alternative electron pathways of photosynthesis power green algal CO2 capture Open
Microalgae contribute to about half of global net photosynthesis, which converts sunlight into the chemical energy (ATP and NADPH) used to transform CO2 into biomass. Alternative electron pathways of photosynthesis have been proposed to ge…
View article: Dramatic Changes in Mitochondrial Subcellular Location and Morphology Accompany Activation of the CO<sub>2</sub>Concentrating Mechanism
Dramatic Changes in Mitochondrial Subcellular Location and Morphology Accompany Activation of the CO<sub>2</sub>Concentrating Mechanism Open
Dynamic changes in intracellular ultrastructure can be critical for the ability of organisms to acclimate to environmental conditions. Microalgae, which are responsible for ∼50% of global photosynthesis, compartmentalize their Rubisco into…
View article: Photosynthesis and other factors affecting the establishment and maintenance of cnidarian–dinoflagellate symbiosis
Photosynthesis and other factors affecting the establishment and maintenance of cnidarian–dinoflagellate symbiosis Open
Coral growth depends on the partnership between the animal hosts and their intracellular, photosynthetic dinoflagellate symbionts. In this study, we used the sea anemone Aiptasia , a laboratory model for coral biology, to investigate the p…
View article: Draft genome of <i>Chloroflexu</i> s sp. MS-CIW-1, of the <i>Chloroflexus</i> sp. MS-G group from Mushroom Spring, Yellowstone National Park
Draft genome of <i>Chloroflexu</i> s sp. MS-CIW-1, of the <i>Chloroflexus</i> sp. MS-G group from Mushroom Spring, Yellowstone National Park Open
Chloroflexus sp. MS-CIW-1 was isolated from a phototrophic mat in Mushroom Spring, an alkaline hot spring in Yellowstone National Park, WY, USA. We report the draft genome of 4.8 Mb consisting of 6 contigs with 3755 protein-coding genes an…
View article: Proteomes of native and non-native symbionts reveal responses underpinning host-symbiont specificity in the cnidarian–dinoflagellate symbiosis
Proteomes of native and non-native symbionts reveal responses underpinning host-symbiont specificity in the cnidarian–dinoflagellate symbiosis Open
Cellular mechanisms responsible for the regulation of nutrient exchange, immune responses, and symbiont population growth in the cnidarian–dinoflagellate symbiosis are poorly resolved, particularly with respect to the dinoflagellate symbio…
View article: Chloroplast Methyltransferase Homolog RMT2 is Involved in Photosystem I Biogenesis
Chloroplast Methyltransferase Homolog RMT2 is Involved in Photosystem I Biogenesis Open
Oxygen (O 2 ), a dominant element in the atmosphere and essential for most life on Earth, is produced by the photosynthetic oxidation of water. However, metabolic activity can cause accumulation of reactive O 2 species (ROS) and severe cel…
View article: Genome-wide distribution of 5-hydroxymethyluracil and chromatin accessibility in the<i>Breviolum minutum</i>genome
Genome-wide distribution of 5-hydroxymethyluracil and chromatin accessibility in the<i>Breviolum minutum</i>genome Open
In dinoflagellates, a unique and extremely divergent genomic and nuclear organization has evolved. The highly unusual features of dinoflagellate nuclei and genomes include permanently condensed liquid crystalline chromosomes, primarily pac…
View article: Green algae CO<sub>2</sub>capture is powered by alternative electron pathways of photosynthesis
Green algae CO<sub>2</sub>capture is powered by alternative electron pathways of photosynthesis Open
On Earth, microalgae contribute to about half of global net photosynthesis. During photosynthesis, sunlight is converted into chemical energy (ATP and NADPH) used by metabolism to convert CO 2 into biomass. Alternative electron pathways of…
View article: Symbiont Identity Impacts the Microbiome and Volatilome of a Model Cnidarian-Dinoflagellate Symbiosis
Symbiont Identity Impacts the Microbiome and Volatilome of a Model Cnidarian-Dinoflagellate Symbiosis Open
The symbiosis between cnidarians and dinoflagellates underpins the success of reef-building corals in otherwise nutrient-poor habitats. Alterations to symbiotic state can perturb metabolic homeostasis and thus alter the release of biogenic…