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USC Marine & Environmental Biology

@USC_MEB

Marine and Environmental Biology section and graduate program @USCDornsife.

 Los Angeles, CA
dornsife.usc.edu/meb/
Joined November 2020
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USC Marine & Environmental Biology retweeted
Cameron Thrash (@jcamthrash) profile picture
Cameron Thrash@jcamthrashOct 14
Strong agreement in absolute marine prokaryote abundance from epifluorescence microscopy and internal-standard-corrected metagenomics @USC_MEB academic.oup.com/ismecommun/…
Strong agreement in absolute marine prokaryote abundance from epifluorescence microscopy and...

Strong agreement in absolute marine prokaryote abundance from epifluorescence microscopy and...

Abstract. Quantifying microbial cell abundance in natural environments with taxonomic resolution remains a central challenge in microbial ecology. While ep

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USC Marine & Environmental Biology retweeted
Cameron Thrash (@jcamthrash) profile picture
Cameron Thrash@jcamthrashJul 13
Macro evolutionary patterns do not predict micro evolutionary trajectories @USC_MEB biorxiv.org/content/10.64898…
Macro evolutionary patterns do not predict micro evolutionary trajectories

Macro evolutionary patterns do not predict micro evolutionary trajectories

As the world’s oceans change in response to climate change, phytoplankton communities will adapt to warmer, more stratified surface waters via plasticity, evolution, and range shifts. Current global...

biorxiv.org
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USC Marine & Environmental Biology retweeted
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Cameron Thrash@jcamthrashJul 10
In Situ Bacterioplankton Growth Partitioning by High‐Resolution Metatranscriptomics @USC_MEB enviromicro-journals.onlinel…
In Situ Bacterioplankton Growth Partitioning by High‐Resolution Metatranscriptomics

In Situ Bacterioplankton Growth Partitioning by High‐Resolution Metatranscriptomics

Bacterial growth and primary production are key ecological indicators, yet often measured in bulk. Using metatranscriptomics, the authors identify FtsZ expression to track dividing cells (A, B)....

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USC Marine & Environmental Biology retweeted
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Cameron Thrash@jcamthrashJun 4
Non-diazotrophic Trichodesmium species are active in N2 fixing colonies @USC_MEB academic.oup.com/ismecommun/…
Non-diazotrophic Trichodesmium species are active in N2 fixing colonies

Non-diazotrophic Trichodesmium species are active in N2 fixing colonies

Abstract. Trichodesmium is a globally important nitrogen-fixing cyanobacterial genus. Until recently, it was assumed that all Trichodesmium species fix nit

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USC Marine & Environmental Biology retweeted
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Cameron Thrash@jcamthrashMay 1
Iron supply from the Oregon margin to the ocean dominated by hypoxia-dependent particles @usc_meb @USC_earth pnas.org/doi/abs/10.1073/pna…
Iron supply from the Oregon margin to the ocean dominated by hypoxia-dependent particles | PNAS

Iron supply from the Oregon margin to the ocean dominated by hypoxia-dependent particles | PNAS

Continental margins are sources of iron (Fe), a critical oceanic micronutrient limiting productivity over nearly a third of the ocean. Paradoxicall...

pnas.org
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USC Marine & Environmental Biology retweeted
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Cameron Thrash@jcamthrashApr 23
Our first collaboration with the Levine lab! Defining metabolic niches for marine microbial heterotrophs science.org/doi/full/10.1126…
Defining metabolic niches for marine microbial heterotrophs

Defining metabolic niches for marine microbial heterotrophs

Understanding carbon cycling requires simplifying bacterial diversity into functional groups defined by genetic signatures.

science.org
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USC Marine & Environmental Biology retweeted
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Cameron Thrash@jcamthrashMar 27
Converting Relative Amplicon Abundances to Absolute Abundances via Flow Cytometry: Metagenomic Validation and Application to Long Ocean Transects @USC_MEB academic.oup.com/ismecommun/…
Converting relative amplicon abundances to absolute abundances via flow cytometry: metagenomic...

Converting relative amplicon abundances to absolute abundances via flow cytometry: metagenomic...

Abstract. With microbes critical for ocean ecological and biogeochemical processes, we need to understand their abundance and diversity distributions. Whil

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USC Marine & Environmental Biology retweeted
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Cameron Thrash@jcamthrashJan 22
Our latest. Led by the very talented @aHoi_Ching Cell cycle dysregulation of globally important SAR11 bacteria resulting from environmental perturbation nature.com/articles/s41564-0…
Cell cycle dysregulation of globally important SAR11 bacteria resulting from environmental pertur...

Cell cycle dysregulation of globally important SAR11 bacteria resulting from environmental pertur...

Nature Microbiology - Without key cell cycle control genes, SAR11 cells experience aneuploidy and growth inhibition when exposed to changes in nutrients, carbon sources or temperature stress, a...

nature.com
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USC Marine & Environmental Biology retweeted
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Cameron Thrash@jcamthrashMar 4
Ocean warming enhances iron use efficiencies of marine ammonia-oxidizing archaea @USC_MEB pnas.org/doi/abs/10.1073/pna…
Ocean warming enhances iron use efficiencies of marine ammonia-oxidizing archaea | PNAS

Ocean warming enhances iron use efficiencies of marine ammonia-oxidizing archaea | PNAS

Ammonia-oxidizing archaea (AOA) are among the most abundant microorganisms in the ocean, playing a fundamental role in the marine nitrogen cycle. A...

pnas.org
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USC Marine & Environmental Biology retweeted
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Cameron Thrash@jcamthrash25 Sep 2025
Interested in removing particle-associated microbes from particles for eg flow cytometry, culturing, or other single-cell microbiology purposes? Led by graduating PhD stdnt Jordan Coelho: Detergent-based separation of microbes from marine particles journals.asm.org/doi/10.1128…
Detergent-based separation of microbes from marine particles | Applied and Environmental Microbio...

Detergent-based separation of microbes from marine particles | Applied and Environmental Microbio...

Microbes that reside on marine particulate organic matter are vital facets of marine biogeochemistry. As they degrade the particle on which they reside, the resulting concentrated region of activity...

journals.asm.org
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USC Marine & Environmental Biology retweeted
Cameron Thrash (@jcamthrash) profile picture
Cameron Thrash@jcamthrash15 Sep 2025
Microbial exoenzymes catalyzed the transition to an oxygenated Earth @USC_MEB biorxiv.org/content/10.1101/…
Microbial exoenzymes catalyzed the transition to an oxygenated Earth

Microbial exoenzymes catalyzed the transition to an oxygenated Earth

Microbial exoenzymes—extracellular enzymes secreted to degrade complex organic polymers— are essential for recycling carbon and nutrients, thus sustaining primary productivity in today’s oceans[1][...

biorxiv.org
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USC Marine & Environmental Biology retweeted
Cameron Thrash (@jcamthrash) profile picture
Cameron Thrash@jcamthrash20 Aug 2025
Vitamin auxotrophies shape microbial community assembly on model marine particles @USC_MEB academic.oup.com/ismej/advan…
Vitamin auxotrophies shape microbial community assembly on model marine particles

Vitamin auxotrophies shape microbial community assembly on model marine particles

Abstract. Microbial community assembly is governed by the flow of carbon sources and other primary metabolites between species. However, central metabolism

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USC Marine & Environmental Biology retweeted
Cameron Thrash (@jcamthrash) profile picture
Cameron Thrash@jcamthrash19 Aug 2025
Functional genomic signatures predict microbial culturability across the tree of life @USC_MEB @USC_earth biorxiv.org/content/10.1101/…
Functional genomic signatures predict microbial culturability across the tree of life

Functional genomic signatures predict microbial culturability across the tree of life

Most microbial taxa on Earth remain uncultivated, limiting our ability to study their physiology, ecology, and roles in environmental processes. Although metagenome-assembled genomes (MAGs) have...

biorxiv.org
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USC Marine & Environmental Biology retweeted
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Cameron Thrash@jcamthrash11 Aug 2025
Do you like coastal/estuarine microbiology, time-series data, and/or metagenomics? Have we got a dataset for you #NSFfunded Metagenomes and 1,313 metagenome-assembled genomes from a northern Gulf of Mexico coastal time series nature.com/articles/s41597-0…
Metagenomes and 1,313 metagenome-assembled genomes from a northern Gulf of Mexico coastal time...

Metagenomes and 1,313 metagenome-assembled genomes from a northern Gulf of Mexico coastal time...

Scientific Data - Metagenomes and 1,313 metagenome-assembled genomes from a northern Gulf of Mexico coastal time series

nature.com
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USC Marine & Environmental Biology retweeted
Cameron Thrash (@jcamthrash) profile picture
Cameron Thrash@jcamthrash30 Jul 2025
Quantitative metagenomics for marine prokaryotes and photosynthetic eukaryotes @USC_MEB academic.oup.com/ismecommun/…
Quantitative metagenomics for marine prokaryotes and photosynthetic eukaryotes

Quantitative metagenomics for marine prokaryotes and photosynthetic eukaryotes

Abstract. High-throughput sequencing has provided unprecedented insights into microbial biodiversity in marine and other ecosystems. However, most sequenci

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USC Marine & Environmental Biology retweeted
Cameron Thrash (@jcamthrash) profile picture
Cameron Thrash@jcamthrash29 Jul 2025
Characterizing organisms from three domains of life with universal primers from throughout the global ocean @USC_MEB nature.com/articles/s41597-0…
Characterizing organisms from three domains of life with universal primers from throughout the...

Characterizing organisms from three domains of life with universal primers from throughout the...

Scientific Data - Characterizing organisms from three domains of life with universal primers from throughout the global ocean

nature.com
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USC Marine & Environmental Biology retweeted
Cameron Thrash (@jcamthrash) profile picture
Cameron Thrash@jcamthrash28 Jul 2025
Some new genomes from our collaborative project with @hollybik group: Complete genome sequences of two Pseudoalteromonas undina strains isolated from a marine nematode (Oncholaimidae) collected at Tybee Island journals.asm.org/doi/full/10…
Complete genome sequences of two Pseudoalteromonas undina strains isolated from a marine nematode...

Complete genome sequences of two Pseudoalteromonas undina strains isolated from a marine nematode...

Pseudoalteromonas bacteria are ubiquitous in marine ecosystems and have been found in both free-living and host-associated contexts, including microbiomes of several marine invertebrate phyla (1–4)....

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USC Marine & Environmental Biology retweeted
Cameron Thrash (@jcamthrash) profile picture
Cameron Thrash@jcamthrash28 Jul 2025
A low oxygen threshold for physiological responses and trace metal quotas of Prochlorococcus and Synechococcus @USC_MEB @USC_earth aslopubs.onlinelibrary.wiley…
A low oxygen threshold for physiological responses and trace metal quotas of Prochlorococcus and...

A low oxygen threshold for physiological responses and trace metal quotas of Prochlorococcus and...

Continued human activity is expected to accelerate ocean deoxygenation, leading to the expansion and shallowing of oxygen-deficient zones (ODZs). This decline in oxygen may impact both phytoplankton...

aslopubs.onlinelibrary.wiley.com
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USC Marine & Environmental Biology retweeted
Cameron Thrash (@jcamthrash) profile picture
Cameron Thrash@jcamthrash21 Jul 2025
Contrasting Responses of Oceanic and Coastal Synechococcus to Iron Limitation and Warming Interactions @USC_MEB @ResearchAtUSC enviromicro-journals.onlinel…
Contrasting Responses of Oceanic and Coastal Synechococcus to Iron Limitation and Warming Interac...

Contrasting Responses of Oceanic and Coastal Synechococcus to Iron Limitation and Warming Interac...

Oceanic Synechococcus respond to the interactive effects of iron (Fe) limitation and ocean warming by regulating photosynthesis, nutrient metabolism, and heat shock gene expression, while a coastal...

enviromicro-journals.onlinelibrary.wiley.com
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USC Marine & Environmental Biology retweeted
Cameron Thrash (@jcamthrash) profile picture
Cameron Thrash@jcamthrash16 Jul 2025
Our latest, and the second paper led by Jordan Coelho this year. Want to remove bacteria from POM for single-cell microbiology/culturing/'omics applications? We've got some data: Detergent-based separation of microbes from marine particles biorxiv.org/content/10.1101/…
Detergent-based separation of microbes from marine particles

Detergent-based separation of microbes from marine particles

Marine particles, typically composed of organic detritus and cellular debris, harbor microbial communities that are distinct from the planktonic, or free-living, communities in the pelagic ocean....

biorxiv.org
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