New #ISEPpapers #preprint! Viral infection to the raphidophycean alga #Heterosigma akashiwo affects both intracellular organic matter composition and dynamics of a coastal prokaryotic community https://www.biorxiv.org/content/10.1101/2024.10.07.616994v1

#protists #algae #viruses #microbes #biology

New #ISEPpapers! Contractile vacuoles: a rapidly expanding (and occasionally diminishing?) understanding https://www.sciencedirect.com/science/article/pii/S0932473924000282 by Kiran More et al.

#protists #microbes #organelles #biology #evolution #algae #parasites

Hunting down giant viruses that attack tiny algae
https://phys.org/news/2024-09-giant-viruses-tiny-algae.html

#viruses #algae #microbiology

Hunting down giant viruses that attack tiny algae

They were said to come from outer space, and there were even claims that they were actually bacteria and that they undermined the very definition of viruses.

^{Weizmann Institute of Science (Phys.org)}

We found a really big active endogenous virus

https://www.biorxiv.org/content/10.1101/2024.09.03.611062v1

#viruses #algae #microbiology

Latent infection of an active giant endogenous virus in a unicellular green alga

Latency is a common strategy in a wide range of viral lineages, but its prevalence in giant viruses remains unknown.

^bioRxiv

The diel disconnect between cell growth and division in Aureococcus is interrupted by giant virus infection

https://www.frontiersin.org/journals/microbiology/articles/10.3389/fmicb.2024.1426193/full

#viruses #algae #microbiology

Frontiers | The diel disconnect between cell growth and division in Aureococcus is interrupted by giant virus infection

Viruses of eukaryotic algae have become an important research focus due to their role(s) in nutrient cycling and top-down control of algal blooms. Omics-base...

^Frontiers

Follow the leader: A new study of #flagella in #algae reveals how they coordinate their movements to ensure cells steer efficiently https://elifesciences.org/digests/86102/follow-the-leader #protists #microbes

The younger flagellum sets the beat for #Chlamydomonas reinhardtii https://elifesciences.org/articles/86102

"To steer, C. reinhardtii adjusts the strength of the strokes made by each flagellum. Despite this asymmetry, the flagella must continue to beat in synchrony to move efficiently."

Metabarcoding, metagenomics and other omics methods revolutionize the study and monitoring of aquatic ecosystems. Come and join the 350 scientists and managers who will be discussing the use and development of these methods.
https://aquaecomics.symposium.inrae.fr/

#metabarcoding #metagenomics #fish #algae #protist #DNA #bioinformatic #pipeline #omics #MolecularEcology

#Mutualism on the edge: Understanding the #Paramecium–#Chlorella symbiosis https://journals.plos.org/plosbiology/article?id=10.1371%2Fjournal.pbio.3002563

"Exploring the mechanisms that underpin #symbiosis requires an understanding of how these complex interactions are maintained in diverse model systems. The ciliate #protist, Paramecium bursaria, offers a valuable insight into how emergent endosymbiotic interactions have evolved."

#protists #algae #microbes #ciliates

Daily turnover of active giant virus infection during algal blooms revealed by single-cell transcriptomics

"A consistent percent of infected coccolithophores displayed the early phase of viral replication for several consecutive days, indicating a daily turnover and continuous virocell-associated metabolite production, potentially affecting the surrounding microbiome"

https://www.science.org/doi/full/10.1126/sciadv.adf7971

#viruses #algae #HAB #ocean #marine #virology

A new hope for algae biofuel (microalgae, that is)

#algae #biofuels #biofuel #microalgae #fuels #energy #decarbonization #carboncapture #carbonemissions #aquaculture #agriculture #biobased #bioeconomy #bioenergy #renewableenergy #renewable #sdg7 #sustainableenergy #energytransition #science #research

https://cleantechnica.com/2023/12/19/algae-biofuel-haunts-fossil-fuel-stakeholders/

Algae Biofuel Rises From Grave To Haunt Fossil Fuel Stakeholders

After ExxonMobil walks away, algae biofuel gets another shot at success and the US Department of Energy is here for it.

^{Tina Casey (CleanTechnica)}

Marine #microorganisms are crucial for #ocean health.

#Bacteria, #archaea, #fungi, #algae and #viruses make up most of the biomass in the seas and form the base of marine food webs.

They support nutrient cycling and drive crucial biogeochemical processes, including key steps in the carbon, nitrogen and silicon cycles.

Ocean modelling must evolve to take their biological complexity into account.

#biology #ecology #oceans
https://www.nature.com/articles/d41586-023-03425-4

‘Oceans are hugely complex’: modelling marine microbes is key to climate forecasts

Microorganisms are the engines that drive most marine processes. Ocean modelling must evolve to take their biological complexity into account.

^{Tagliabue, Alessandro}