Imre Friedmann | Academic Influence

Imre Friedmann's AcademicInfluence.com Rankings

Imre Friedmann

Biology

#4159

World Rank

#6244

Historical Rank

Microbiology

#686

World Rank

#758

Historical Rank

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Biology

Imre Friedmann's Degrees

PhD Biology University of Chicago
Masters Biology University of Chicago
Bachelors Biology University of Chicago

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Why Is Imre Friedmann Influential?

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According to Wikipedia, E. Imre Friedmann was a biologist, Robert O. Lawton Distinguished Professor of Biology at Florida State University and the NASA Ames Research Center, and Director, Polar Desert Research Center. He studied endolithic microbial communities and astrobiology. After escaping the Holocaust, Friedmann received his Ph.D. in botany from the University of Vienna, Austria in 1951, and he died on June 11, 2007.

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Imre Friedmann's Published Works

Number of citations in a given year to any of this author's works

Total number of citations to an author for the works they published in a given year. This highlights publication of the most important work(s) by the author

Published Works

Endolithic Microorganisms in the Antarctic Cold Desert (1982) (723)
Metabolic Activity of Permafrost Bacteria below the Freezing Point (2000) (567)
The lithobiontic ecological niche, with special reference to microorganisms (1981) (445)
Temperature and moisture conditions for life in the extreme arid region of the Atacama desert: four years of observations including the El Niño of 1997-1998. (2003) (333)
Ionizing-Radiation Resistance in the Desiccation-Tolerant CyanobacteriumChroococcidiopsis (2000) (328)
Hypolithic Cyanobacteria, Dry Limit of Photosynthesis, and Microbial Ecology in the Hyperarid Atacama Desert (2006) (319)
Endolithic Blue-Green Algae in the Dry Valleys: Primary Producers in the Antarctic Desert Ecosystem (1976) (293)
Microbial Diversity of Cryptoendolithic Communities from the McMurdo Dry Valleys, Antarctica (2003) (287)
Microbial populations in Antarctic permafrost: biodiversity, state, age, and implication for astrobiology. (2007) (242)
Fungi at the edge of life: cryptendolithic black fungi from Antarctic desert (2005) (223)
Characterization of Viable Bacteria from Siberian Permafrost by 16S rDNA Sequencing (1997) (219)
Endolithic microbial life in hot and cold deserts (1980) (171)
CHAPTER IV – DESERT ALGAE, LICHENS, AND FUNGI (1974) (169)
Effects of a simulated martian UV flux on the cyanobacterium, Chroococcidiopsis sp. 029. (2005) (164)
Microbial trace-fossil formation, biogenous, and abiotic weathering in the Antarctic cold desert. (1987) (159)
Long-term productivity in the cryptoendolithic microbial community of the Ross Desert, Antarctica (2004) (137)
Physical and biogeochemical processes in Antarctic lakes (1993) (124)
Cryptoendolithic lichen and cyanobacterial communities of the Ross Desert, Antarctica. (1988) (123)
The cryptoendolithic microbial environment in the Ross Desert of Antarctica: Light in the photosynthetically active region (2005) (116)
Chains of magnetite crystals in the meteorite ALH84001: Evidence of biological origin (2001) (104)
The cryptoendolithic microbial environment in the Ross Desert of Antarctica: Satellite-transmitted continuous nanoclimate data, 1984 to 1986 (2004) (99)
Soil temperatures and stability of ice-cemented ground in the McMurdo Dry Valleys, Antarctica (1998) (94)
Growth on Geological Time Scales in the Antarctic Cryptoendolithic Microbial Community (1999) (91)
A primitive cyanobacterium as pioneer microorganism for terraforming Mars. (1995) (90)
Ecophysiology of Lichens in the Dry Valleys of Southern Victoria Land, Antarctica I. Microclimate of the Cryptoendolithic Lichen Habitat (1981) (83)
Effect of desiccation on envelopes of the cyanobacterium Chroococcidiopsis sp. (Chroococcales) (1996) (82)
The cryptoendolithic microbial environment in the Antarctic cold desert: Temperature variations in nature (2004) (79)
Cytology of long-term desiccation in the desert cyanobacterium Chroococcidiopsis (Chroococcales). (1993) (72)
History of water on Mars: a biological perspective. (1992) (70)
Gene Transfer to the Desiccation-Tolerant CyanobacteriumChroococcidiopsis (2001) (70)
Light and scanning electron microscopy of the endolithic desert algal habitat1 (1971) (69)
Life on Mars: how it disappeared (if it was ever there). (1989) (69)
Effects of water stress on cryptoendolithic cyanobacteria from hot desert rocks (1981) (64)
Ecophysiology of lichens in the dry valleys of Southern Victoria Land, Antarctica (1983) (59)
Water relations and photosynthesis in the cryptoendolithic microbial habitat of hot and cold deserts (2005) (58)
The Antarctic cold desert and the search for traces of life on Mars. (1986) (58)
Nitrogen economy of endolithic microbial communities in hot and cold deserts (1980) (56)
The Mount Feather Diamicton of the Sirius Group: an accumulation of indicators of Neogene Antarctic glacial and climatic history (2002) (51)
FINE STRUCTURE OF CAPITULAR FILAMENTS IN THE COENOCYTIC GREEN ALGA PENICILLUS 1, 2, 3 (1974) (51)
Calcium Oxalate Crystals in the Aragonite-Producing Green Alga Penicillus and Related Genera (1972) (48)
Ecology and biology of microfungi from Antarctic rocks and soils (2000) (34)
Communities Adjust their Temperature Optima by Shifting Producer-to-Consumer Ratio, Shown in Lichens as Models: II. Experimental Verification (2005) (32)
Hemichloris antarctica, gen. et sp. nov. (Chlorococcales, Chlorophyta), a cryptoendolithic alga from Antarctica. (1984) (32)
Continuous Nanoclimate Data (1985-1988) from the Ross Desert (McMurdo Dry Valleys) Cryptoendolithic Microbial Ecosystem (2013) (31)
Communities Adjust their Temperature Optima by Shifting Producer-to-Consumer Ratio, Shown in Lichens as Models: I. Hypothesis (2005) (31)
The antarctic cryptoendolithic ecosystem: Relevance to exobiology (2004) (30)
HETEROCOCCUS ENDOLITHICUS SP. NOV. (XANTHOPHYCEAE) AND OTHER TERRESTRIAL HETEROCOCCUS SPECIES FROM ANTARCTICA: MORPHOLOGICAL CHANGES DURING LIFE HISTORY AND RESPONSE TO TEMPERATURE 1 (1987) (27)
Water relations, thallus structure and photosynthesis in Negev Desert lichens. (1990) (27)
Preliminary report on radiocarbon dating of cryptoendolithic microorganisms. (1988) (27)
The cryptoendolithic microbial environment in the Ross Desert of Antarctica: Mathematical models of the thermal regime (2005) (26)
Magnetotactic bacteria on Earth and on Mars. (2003) (25)
Development of the siphonous green alga Penicillus and the Espera state (1977) (24)
Novel long-chain anteiso-alkanes and anteiso-alkanoic acids in Antarctic rocks colonized by living and fossil cryptoendolithic microorganisms. (1992) (23)
Terraforming Mars: dissolution of carbonate rocks by cyanobacteria. (1993) (22)
THE SYMPOSIUM ON TAXONOMIC CONCEPTS IN BLUE‐GREEN ALGAE: TOWARDS A COMPROMISE WITH THE BACTERIOLOGICAL CODE? (1982) (20)
The effect of low temperature on Antarctic endolithic green algae. (1988) (19)
The genusGeitleria (Cyanophyceae orCyanobacteria): Distribution ofG. calcarea andG. floridana n. sp. (1979) (17)
Temperature response of Antarctic cryptoendolithic photosynthetic microorganisms. (1988) (16)
Incorporation of inorganic carbon by Antarctic cryptoendolithic fungi. (1988) (16)
Pestalotiopsis maculans: A Dominant Parasymbiont in North American Lichens (2002) (13)
Radiocarbon dating of open systems with bomb effect (1986) (12)
Water relations and photosynthesis in the cryptoendolithic microbial habitat of hot and cold deserts. (1990) (12)
Biologically active substances produced by antarctic cryptoendolithic fungi. (1993) (11)
TAXONOMIC SIGNIFICANCE OF NUCLEUS‐MICROBODY ASSOCIATIONS, SEGREGATED NUCLEOLI AND OTHER NUCLEAR FEATURES IN SIPHONOUS GREEN ALGAE 1 (1980) (9)
Endolithic Microorganisms in Arid Regions (2003) (8)
Biogeochemical features of lipids in endolithic microbial communities in the Ross Desert (McMurdo Dry Valleys), Antarctica. (2004) (8)
Extreme environments and exobiology. (1993) (7)
Control of matric water potential by temperature differential. (1987) (7)
Ultrastructure of the siphonous green algae Avrainvillea and Cladocephalus (1987) (6)
Viable bacteria, methane and high ice content in antarctic permafrost: Relevance to Mars (1996) (6)
Heteropolarity in unicellular cyanobacteria: structure and development ofCyanocystis violacea (1989) (4)
Trace fossils of endolithic microorganisms in Antarctica: A model for mars (1986) (4)
The cryptoendolithic microbial environment in the Ross Desert of Antarctica: mathematical models of the thermal regime. (1988) (4)
Geochemical characteristics of organic compounds in a permafrost sediment core sample from northeast Siberia, Russia. (1995) (4)
Persistent macrosegregated nucleoli in the siphonous green algae Avrainvillea, Cladocephalus and Blastophysa and possible implications concerning ribosomal RNA synthesis, nuclear cycles and life histories (1981) (4)
CHAINS OF MAGNETITE CRYSTALS IN ALH 84001 : EVIDENCE OF BIOLOGICAL ORIGIN (1998) (3)
Field studies of antarctic cryptoendolithic microbial ecosystems, 1984-1985. (1985) (2)
Adaptations of cryptoendolithic lichens in the Antarctic dry valleys (1982) (2)
Antarctic cryptoendolithic microbial ecosystem research, 1986-1987 (1987) (2)
From Siberia to Mars (1991) (2)
The Algae of Southern Victorialand, Antarctica: A Taxonomic and Distributional Study (1980) (2)
Endolithic microbial life in the Antarctic dry valleys: a terrestrial model of martian environment (1979) (1)
Terrestrial analogs of possible Martian habitats (2006) (1)
Land: preliminary observations. (1985) (1)
Lithobionts-ecological niches for life in lithic habitats: models for searching past life on Mars (2004) (1)
Lichens of Antarctica and South Georgia: A Guide to Their Identification and Ecology (2003) (1)
Microbial trace fossils in Antarctica and the search for evidence of early life on Mars (1989) (0)
(Chlorococcales, Chlorophyta), a cryptoendolith ic alga from Antarctica (1984) (0)
A limestone boring cyanobacterium matteia sp stigonematales in negev israel desert rocks (1991) (0)
Biogeochemistry on Mars, both possible and realistic: Magnetite (2006) (0)
Chroococcaceae in desert rocks (1973) (0)
Trace fossils of microbial colonization on Mars: Criteria for search and for sample return (1988) (0)
Planetary biology and origins of life. Proceedings of the Topical Meeting of the COSPAR Interdisciplinary Scientific Commission F (Meeting F3) of the COSPAR Twenty-ninth Plenary Meeting held in Washington, DC, USA, 28 August-5 September, 1992. (1995) (0)
Tab. 3: Substrate pH values of crypthoendolithic microbial communities (1988) (0)
The cryptoendolithic microbial environment in the Ross Desert of Antarctica: light in the photosynthetically active region. (1988) (0)
Avrainvillea and Cladocephalus (1987) (0)
A repository for Antarctic glacio-climatic history - anatomy of the Mount Feather diamiction, Southern Victoria Land (1999) (0)
2.3 Temperature Response of Antarctic Crytoendolithic Photosynthetic Microorganisms (1988) (0)
Magnetite Crystal Chains: Most Promising Evidence of Past Microbial Life on Mars, Also Useful on Earth (2005) (0)
Endolithic microbial model for Martian exobiology: The road to extinction (1991) (0)
Helicodictyon planctonicum (Ulotrichales) in Florida (1969) (0)
Table 3: Reproductive viability of Hemichloris antarctica after cycles of cooling und warming (1988) (0)
Microfossils in the Antarctic cold desert: Possible implications for Mars (1986) (0)
Ancient micronauts : interplanetary transport of microbes by cosmic impacts (2009) (0)
Organic Biosignatures in Antarctic Sandstone (2000) (0)
The marvellous aphorisms of Gavin Bryars (2007) (0)
Life sciences and space research 24 (4): Planetary biology and origins of life; Topical Meeting of the COSPAR Interdisciplinary Scientific Commission F (Meeting F3) of the COSPAR Plenary Meeting, 29th, Washington, DC, Aug. 28-Sep. 5, 1992 (1995) (0)

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