R A Mah
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Explore the profile of R A Mah including associated specialties, affiliations and a list of published articles.
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Recent Articles
11.
Xun L, Boone D, Mah R
Appl Environ Microbiol
. 1988 Aug;
54(8):2064-8.
PMID: 16347717
The morphology of Methanosarcina mazei was controlled by magnesium, calcium, and substrate concentrations and by inoculum size; these factors allowed manipulation of the morphology and interconversions between pseudosarcinal aggregates and...
12.
Mathrani I, Boone D, Mah R, Fox G, Lau P
Int J Syst Bacteriol
. 1988 Apr;
38(2):139-42.
PMID: 11540079
Methanohalophilus zhilinae, a new alkaliphilic, halophilic, methylotrophic species of methanogenic bacteria, is described. Strain WeN5T (T = type strain) from Bosa Lake of the Wadi el Natrun in Egypt was...
13.
Boone D, Mah R
Appl Environ Microbiol
. 1987 Jul;
53(7):1699-700.
PMID: 16347399
Methanosarcina mazei S-6 grew faster and its morphology changed to individual coccoid cells in medium with elevated concentrations of divalent cations and a large amount of catabolic substrate.
14.
Boone D, Mathrani I, Mah R
Appl Environ Microbiol
. 1987 May;
53(5):946-8.
PMID: 16347354
We modified a fermentor (10-liter liquid volume) for the growth of anaerobic, H(2)-CO(2)-catabolizing bacteria. Gas in the fermentor (ca. 10% CO(2), 50% H(2), 40% CH(4)) was recirculated by a diaphragm...
15.
Boone D, Menaia J, Boone J, Mah R
Appl Environ Microbiol
. 1987 Jan;
53(1):83-7.
PMID: 16347269
Methanosarcina barkeri 227 and Methanosarcina mazei S-6 grew with acetate as the substrate; we found little effect of H(2) on the rate of aceticlastic growth in the presence of various...
16.
Zhao Y, Zhang H, Boone D, Mah R
Appl Environ Microbiol
. 1986 Nov;
52(5):1227-9.
PMID: 16347224
A thermophilic, autotrophic methanogen (strain CB12, DSM 3664) was isolated from a mesophilic biogas digestor. This bacterium used H(2)-CO(2) or formate as a substrate and grew as short rods, sometimes...
17.
Lake J, Clark M, Henderson E, Fay S, Oakes M, Scheinman A, et al.
Proc Natl Acad Sci U S A
. 1985 Jun;
82(11):3716-20.
PMID: 3858845
The halobacteria and the photosynthetic members of the eubacteria have previously been classified in two separate urkingdoms--the archaebacteria and the eubacteria, respectively. They were thought to be no more closely...
18.
Liu Y, Boone D, Sleat R, Mah R
Appl Environ Microbiol
. 1985 Mar;
49(3):608-13.
PMID: 16346753
A methanogenic coccoid organism, Methanosarcina mazei LYC, was isolated from alkaline sediment obtained from an oil exploration drilling site. The isolate resembled M. mazei S-6 by exhibiting different morphophases during...
19.
Sleat R, Mah R, Robinson R
Appl Environ Microbiol
. 1984 Jul;
48(1):88-93.
PMID: 16346602
A new anaerobic, mesophilic, spore-forming cellulolytic bacterium is described. Cellulose is cleared within 24 to 48 h around colonies formed in cellulose agar roll tubes. Cells stain gram negative and...
20.
Sleat R, Mah R
Appl Environ Microbiol
. 1984 Apr;
47(4):884-5.
PMID: 16346529
The effects of fermentation products and media supplements on a colorimetric assay for formate were evaluated. Formate was detected at concentrations as low as 0.5 mM in fermentation media.