The Geologic History of Lake Lahontan

Jones, Julie

doi:10.1126/science.40.1040.827

Cited by 20 publications

(20 citation statements)

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“…The geology, chemistry, and microbial ecology of the springs have been described in some detail (4,11). Pyramid Lake was connected with Gerlach between 18,000 and 7,000 BC, during the last ice age, by prehistoric Lake Lahontan, which also extended into northeastern California and southern Oregon (7,29). The temperate pools sampled at GBS are designated GL1, GL2, and GL3, and the water temperature in these pools was ambient.…”

Section: Methodsmentioning

confidence: 99%

Nonmagnetotactic Multicellular Prokaryotes from Low-Saline, Nonmarine Aquatic Environments and Their Unusual Negative Phototactic Behavior

Lefèvre

Abreu

Lins

et al. 2010

Appl Environ Microbiol

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Magnetotactic multicellular prokaryotes (MMPs) are unique magnetotactic bacteria of the Deltaproteobacteria class and the first found to biomineralize the magnetic mineral greigite (Fe 3 S 4 ). Thus far they have been reported only from marine habitats. We questioned whether MMPs exist in low-saline, nonmarine environments. MMPs were observed in samples from shallow springs in the Great Boiling Springs geothermal field and Pyramid Lake, both located in northwestern Nevada. The temperature at all sites was ambient, and salinities ranged from 5 to 11 ppt. These MMPs were not magnetotactic and did not contain magnetosomes (called nMMPs here). nMMPs ranged from 7 to 11 m in diameter, were composed of about 40 to 60 Gram-negative cells, and were motile by numerous flagella that covered each cell on one side, characteristics similar to those of MMPs. 16S rRNA gene sequences of nMMPs show that they form a separate phylogenetic branch within the MMP group in the Deltaproteobacteria class, probably representing a single species. nMMPs exhibited a negative phototactic behavior to white light and to wavelengths of <480 nm (blue). We devised a "light racetrack" to exploit this behavior, which was used to photoconcentrate nMMPs for specific purposes (e.g., DNA extraction) even though their numbers were low in the sample. Our results show that the unique morphology of the MMP is not restricted to marine and magnetotactic prokaryotes. Discovery of nonmagnetotactic forms of the MMP might support the hypothesis that acquisition of the magnetosome genes involves horizontal gene transfer. To our knowledge, this is the first report of phototaxis in bacteria of the Deltaproteobacteria class.One of the most interesting and unusual examples of prokaryotic morphology is that of the organism known as the magnetotactic multicellular prokaryote (MMP; also known as the magnetotactic multicellular aggregate [MMA] [16,37] and the magnetotactic multicellular organism [MMO] [30]). The acronym MMP originally stood for many-celled magnetotactic prokaryote (45,46,53,54), but in more recent reports, because of a number of recent findings suggesting that individual cells interact and/or communicate with each other, many investigators use MMP for multicellular magnetotactic prokaryote (for an example, see reference 59).

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Section: Methodsmentioning

confidence: 99%

Nonmagnetotactic Multicellular Prokaryotes from Low-Saline, Nonmarine Aquatic Environments and Their Unusual Negative Phototactic Behavior

Lefèvre

Abreu

Lins

et al. 2010

Appl Environ Microbiol

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“…Russell speculated that orographic tilting of the floor of Mason Valley caused the Walker River to shift its course from Adrian Valley to the Walker Lake Basin. Jones (1925) also thought Adrian Valley was the natural channel of the Walker River. Antevs (1952) believed that the abandonment of Adrian Valley by the Walker River took place 1100 yr B.P.…”

Section: Geomorphology Of Adrian Valleymentioning

confidence: 96%

“…6). As Jones (1925) in elevation of the Walker River would cause it to flow down the paleochannel into the Carson River.…”

Section: Adrian Valley As An Abandoned Channel Of the Walker Rivermentioning

confidence: 98%

Late Quaternary History of the Lower Walker River and Its Implications for the Lahontan Paleolake System

King

1993

Physical Geography

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The Lahontan Basin of western Nevada was influenced by geomorphic changes in river channels that produced interbasin diversions of surface drainage. Adrian Valley contains evidence of drainage diversion from the Walker River Basin to the Carson River Basin. Paleochannel evidence from both Adrian and Mason Valley, hydrological modeling, and Pleistocene shoreline evidence in the Walker Lake Basin indicate that: (1) the Adrian Valley is a Holocene abandoned channel of the Walker River, and (2) the valley was formed by lake overflow from the Walker subbasin of Pleistocene Lake Lahontan. A provisional six-stage history of Adrian Valley is presented.[

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“…Spectacular formations, some over 100 m high, as well as intricate crystals only millimeters long, attract many visitors to the lake each year. Numerous authors (King 1878;Dana 1884;Russell 1885;Jones 1925;Radbruch 1957;and La Rivers 1962) have treated tufa's chemical composition and mode of deposition. Three forms are generally recognized: lithoid, thinolitic and dendritic.…”

Section: Study Areamentioning

confidence: 99%

“…These were updated by Jones in 1925. Hutchinson (1937 discussed from a limnological viewpoint the various hypotheses put forward by these authors and others (Gale 1915;Antevs 1925) as to why Lake Lahontan's modern descendents were not more saline.…”

Section: Introductionmentioning

confidence: 99%

22. Limnology of a large, deep, North American terminal lake, Pyramid Lake, Nevada, U.S.A.

Galat

Lider²,

Vigg³

et al. 1981

Hydrobiologia

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Beyond, a defile between the mountains descended rapidly about two thousandfeet; and, filling up all the lower space, was a sheet of green water, some twenty miles broad. It broke upon our eyes like the ocean. The waves were curling in the breeze, and their dark-green color showed it to be a body of deep water. For a long time we sat enjoying the view,for we had become fatigued with mountains, and the free expanse of moving waves was very grateful. It was set like a gem in the mountains, which from our position, seemed to enclose it almost entirely.

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The Geologic History of Lake Lahontan

Cited by 20 publications

References 0 publications

Nonmagnetotactic Multicellular Prokaryotes from Low-Saline, Nonmarine Aquatic Environments and Their Unusual Negative Phototactic Behavior

Nonmagnetotactic Multicellular Prokaryotes from Low-Saline, Nonmarine Aquatic Environments and Their Unusual Negative Phototactic Behavior

Late Quaternary History of the Lower Walker River and Its Implications for the Lahontan Paleolake System

22. Limnology of a large, deep, North American terminal lake, Pyramid Lake, Nevada, U.S.A.

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