The DOI matches its Crossref record; 86 of the 92 references it cites were found in a registry or an index.
Prokaryotes: The unseen majority
Open accessAbstract
The number of prokaryotes and the total amount of their cellular carbon on earth are estimated to be 4–6 × 10 30 cells and 350–550 Pg of C (1 Pg = 10 15 g), respectively. Thus, the total amount of prokaryotic carbon is 60–100% of the estimated total carbon in plants, and inclusion of prokaryotic carbon in global models will almost double estimates of the amount of carbon stored in living organisms. In addition, the earth’s prokaryotes contain 85–130 Pg of N and 9–14 Pg of P, or about 10-fold more of these nutrients than do plants, and represent the largest pool of these nutrients in living organisms. Most of the earth’s prokaryotes occur in the open ocean, in soil, and in oceanic and terrestrial subsurfaces, where the numbers of cells are 1.2 × 10 29 , 2.6 × 10 29 , 3.5 × 10 30 , and 0.25–2.5 × 10 30 , respectively. The numbers of heterotrophic prokaryotes in the upper 200 m of the open ocean, the ocean below 200 m, and soil are consistent with average turnover times of 6–25 days, 0.8 yr, and 2.5 yr, respectively. Although subject to a great deal of uncertainty, the estimate for the average turnover time of prokaryotes in the subsurface is on the order of 1–2 × 10 3 yr. The cellular production rate for all prokaryotes on earth is estimated at 1.7 × 10 30 cells/yr and is highest in the open ocean. The large population size and rapid growth of prokaryotes provides an enormous capacity for genetic diversity.
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“However, the majority of astrobiological research is focused on the possible existence and detection of microbial life, which is the simplest, most robust, and most abundant form of life on our own planet (Whitman et al., 1998) and therefore is considered to be the most likely form of life to exist on other planets and moons.”
From The Astrobiology Primer v2.0 (2016) · cites this paper as Whitman et al., 1998
In the citing paper
“Given that there are estimated to be greater than 1030 prokaryotes on earth (Whitman et al., 1998), the vast majority of which are yet unstudied, there are likely to be more PFAS‐metabolizing bacteria uncovered.”
From Nothing lasts forever: understanding microbial biodegradation of polyfluorinated compounds and perfluorinated alkyl substances (2022) · cites this paper as Whitman et al., 1998
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Metadata
- Authors
- Whitman, W. B., Coleman, D. C., & Wiebe, W. J.
- Affiliations
- University of Georgia (US)
- Venue
- Proceedings of the National Academy of Sciences
- Publisher
- National Academy of Sciences
- Published
- 1998-06-09
- Volume
- 95
- Issue
- 12
- Pages
- 6578-6583
- ISSN
- 0027-8424 (ISSN-L)
- 1091-6490
- PMC
- PMC33863
- OpenAlex
- W2118001436
- Semantic Scholar
- 321e4c5e6031364c39db3cfdb151dcc2deaac1ba
- Cited by
- 4,871
- References
- 92
- Citations by year
- 2026: 86 · 2025: 134 · 2024: 159 · 2023: 220 · 2022: 190 · 2021: 252 · 2020: 223 · 2019: 238 · 2018: 273 · 2017: 251 · 2016: 281 · 2015: 282 · 2014: 311 · 2013: 252 · 2012: 238
- FWCI
- 6.26
- Type
- journal article
- Language
- en
- Open access
- green
- europepmc.org
- Locations
- Proceedings of the National Academy of Sciences (publishedVersion)
- Europe PMC (PubMed Central) (publishedVersion)
- PubMed Central (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Physical Sciences › Environmental Science › Ecology › Microbial Community Ecology and Physiology
- Life Sciences › Agricultural and Biological Sciences › Soil Science › Soil Carbon and Nitrogen Dynamics
- Physical Sciences › Earth and Planetary Sciences › Oceanography › Marine Plankton and Biogeochemistry
- Keywords
- prokaryotes, nitrogen, phosphorus, open ocean, soil, subsurface environments, genetic diversity
- MeSH terms
- Prokaryotic Cells
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