Stephen J Giovannoni
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Explore the profile of Stephen J Giovannoni including associated specialties, affiliations and a list of published articles.
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112
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6619
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Recent Articles
1.
Chen Q, Lonborg C, Chen J, Giovannoni S, He C, Gao K, et al.
Environ Res
. 2025 Feb;
272:121159.
PMID: 39978629
Abiotic photochemistry and microbial degradation are the two main removal processes of marine dissolved organic matter (DOM). However, the combined and repeated effects of irradiation and biodegradation on DOM remains...
2.
Wittmers F, Poirier C, Bachy C, Eckmann C, Matantseva O, Carlson C, et al.
Cell Host Microbe
. 2025 Feb;
33(2):182-199.e7.
PMID: 39947132
Protists are major predators of ocean microbial life, with an ancient history of entanglements with prokaryotes, but their delicate cell structures and recalcitrance to culturing hinder exploration of marine symbioses....
3.
Wolf S, Jayawickrama C, Carlson C, Deutsch C, Davis 2nd E, Daniels B, et al.
Sci Rep
. 2025 Jan;
15(1):2838.
PMID: 39843462
Global oxygen minimum zones (OMZs) often reach hypoxia but seldom reach anoxia. Recently it was reported that Michaelis Menten constants (K) of oxidative enzymes are orders of magnitude higher than...
4.
Brennan E, Noell S, Davis 2nd E, Giovannoni S, Suffridge C
Environ Microbiol Rep
. 2024 Oct;
16(5):e70023.
PMID: 39367564
Vitamin B1 is a universally required coenzyme in carbon metabolism. However, most marine microorganisms lack the complete biosynthetic pathway for this compound and must acquire thiamin, or precursor molecules, from...
5.
Eckmann C, Bachy C, Wittmers F, Strauss J, Blanco-Bercial L, Vergin K, et al.
Commun Earth Environ
. 2024 May;
5(1):266.
PMID: 38779128
Ocean spring phytoplankton blooms are dynamic periods important to global primary production. We document vertical patterns of a diverse suite of eukaryotic algae, the prasinophytes, in the North Atlantic Subtropical...
6.
Bolanos L, Tait K, Somerfield P, Parsons R, Giovannoni S, Smyth T, et al.
ISME Commun
. 2023 Nov;
2(1):116.
PMID: 37938786
SAR11 bacteria dominate the surface ocean and are major players in converting fixed carbon back to atmospheric carbon dioxide. The SAR11 clade is comprised of niche-specialized ecotypes that display distinctive...
7.
Singleton S, Davis 2nd E, Arnold H, Daniels A, Brander S, Parsons R, et al.
Front Microbiol
. 2023 Oct;
14:1259014.
PMID: 37869676
Plastic waste accumulation in marine environments has complex, unintended impacts on ecology that cross levels of community organization. To measure succession in polyolefin-colonizing marine bacterial communities, an time-series experiment was...
8.
Lim Y, Seo J, Giovannoni S, Kang I, Cho J
Nat Commun
. 2023 Aug;
14(1):5098.
PMID: 37607927
Bacteria of the SAR202 clade, within the phylum Chloroflexota, are ubiquitously distributed in the ocean but have not yet been cultivated in the lab. It has been proposed that ancient...
9.
Noell S, Hellweger F, Temperton B, Giovannoni S
Microbiol Mol Biol Rev
. 2023 Mar;
87(2):e0012422.
PMID: 36995249
In this review, we consider the regulatory strategies of aquatic oligotrophs, microbial cells that are adapted to thrive under low-nutrient concentrations in oceans, lakes, and other aquatic ecosystems. Many reports...
10.
Noell S, Brennan E, Washburn Q, Davis 2nd E, Hellweger F, Giovannoni S
Environ Microbiol
. 2023 Feb;
25(7):1265-1280.
PMID: 36826469
Aquatic bacteria frequently are divided into lifestyle categories oligotroph or copiotroph. Oligotrophs have proportionately fewer transcriptional regulatory genes than copiotrophs and are generally non-motile/chemotactic. We hypothesized that the absence of...