scholarly journals Living hell: Life at high temperatures

2005 ◽  
Vol 27 (1) ◽  
pp. 6-10 ◽  
Author(s):  
Kazem Kashefi
Keyword(s):  
High Temperatures ◽  
Hydrothermal Vents ◽  
Scientific Community ◽  
Early Earth ◽  
Isolation And Characterization ◽  
Hot Environments ◽  
Micro Organisms

Modern hot environments, such as those found in hydrothermal vents, are of great interest to the scientific community because they resemble those ancient environments where life first arose on Earth and also share many characteristics with environments in other planets where life may have actually existed. Evidence to date strongly indicates that Fe(III) respiration may have been one of the first, if not the first, forms of respiration in a hot, early Earth. The abundance of Fe(III) minerals in many modern and ancient hot environments suggests that studies of Fe(III)-reducing hyperthermophilic micro-organisms are likely to be instrumental for our understanding of how life originated and evolved at high temperatures. The isolation and characterization of novel hyperthermophilic, Fe(III)-reducing micro-organisms has greatly increased our understanding of how microbes can live and thrive in such inhospitable environments. The study of these amazing microbes provides clues as to how life might have arisen on Earth and has implications for our search for traces of life in other planets.

scholarly journals ISOLATION AND CHARACTERIZATION OF ACTIVE PROBIOTIC ORGANISMS IN FERMENTED ZEA MAYS, PENTADETHRA MACROPHYLLA BENTH,AND RICINUS COMMUNIS

2021 ◽  
Vol 9 (4) ◽  
pp. 512-516
Author(s):  
Sunday S. Agbem ◽  
Keyword(s):  
Ricinus Communis ◽  
Food Samples ◽  
Primary Objective ◽  
Fermented Food ◽  
Bacillus Species ◽  
Fermented Foods ◽  
Isolation And Characterization ◽  
Micro Organisms ◽  
Protein Rich

Active probiotic organisms are good bacteria considered to be live micro-organisms that are obtained from fermented foods. Evidence has shown that probiotics are essential in human health. This studys primary objective is to isolate and characterize the active probiotic organisms present in certain fermented food samples. Maize, African oil bean, and castor oil were subjected to analysis. The result found the presence of active probiotic organisms such as Pedioccocus, Lactobacillus, Micrococcus, and Bacillus species. The study concluded that these organisms are responsible for the fermentation of carbohydrates and protein-rich seeds.

scholarly journals Isolation and Characterization of Micro-organisms with Industrial Importance From Sisal Bole Rots

2013 ◽  
Vol 34 (1) ◽  
pp. 26-35
Author(s):  
Consolatha J.N. Mhaiki ◽  
Enock Masanja ◽  
Jamidu H.Y. Katima ◽  
Gunaraths Rajarao ◽  
Gunnel Dalhammar
Keyword(s):  
Polymerase Chain Reaction ◽  
Chain Reaction ◽  
Isolation And Characterization ◽  
Brevundimonas Diminuta ◽  
Industrial Use ◽  
Brevundimonas Vesicularis ◽  
Polymerase Chain ◽  
The Individual ◽  
Micro Organisms

Investigation of microorganisms naturally acclimatized to Agave hybrid H 11648 (sisal bole rot) was conducted, with the aim of isolating and characterizing Aspergillus niger strains for industrial use. Microorganism were identified morphologically and then confirmation made by polymerase chain reaction (PCR). Results showed the existence of four major groups, listed in order of abundances as follows; Aspergilli (36.0±0.8) %, Penicillin (28.0±0.1) %, Yeast (15.0±1.6) %and Fusarium (10.0±0.12) %. The main groups of Aspergilli strains were A. nidulans, A. tamari and A. niger in ratios (3:2:2), respectively. Several endo-spore forming non-enteric gram (-) rods and coccid bacteria identified by API20 NE identification systemincluded,Brevundimonas diminuta sp, Shewanella putrefaciens sp, Brevundimonas vesicularis sp and Pasteurella sp. Results showed that sisal bole rot stems hosts a high bio-diversity of microorganism species other than A. niger. Exploitation of the individual strains is recommended. This could eventually produce strains forprecursors of industrially and therapeutically metabolites.

scholarly journals Isolation and characterization of the gene encoding an aminopeptidase involved in the selective toxicity of ascamycin toward Xanthomonas campestris pv. citri

1996 ◽  
Vol 319 (1) ◽  
pp. 99-102 ◽  
Author(s):  
Tatsuhiko SUDO ◽  
Kiwako SHINOHARA ◽  
Naoshi DOHMAE ◽  
Koji TAKIO ◽  
Ron USAMI ◽  
...  
Keyword(s):  
Xanthomonas Campestris ◽  
Selective Toxicity ◽  
Gene Encoding ◽  
Calculated Molecular Mass ◽  
Isolation And Characterization ◽  
Acid Protein ◽  
Micro Organisms ◽  
Proline Iminopeptidase

An aminopeptidase gene named XAP has been isolated from Xanthomonas campestris pv. citri, a plant pathogenic bacterium. The bacterium is one of the rare micro-organisms susceptible to ascamycin, an aminoacyl nucleoside antibiotic that inhibits protein synthesis. Sequence analysis reveals that the gene encodes a 311 amino acid protein with a calculated molecular mass of 35134 Da and approx. 50% identity for amino acids to the proline iminopeptidase from Neisseria gonorrhoeae. The XAP gene product, Xap, expressed in Escherichia coli has proline iminopeptidase activity as well as ascamycin dealanylating activity in vitro.

scholarly journals Announcing the Availability of a Culture Collection of Uranium-Resistant Microbial Assemblages (CURMA) Obtained from Metalliferous Soils of the Savannah River Site, USA

2020 ◽  
Vol 9 (30) ◽  
Author(s):  
Meenakshi Agarwal ◽  
Rajesh Singh Rathore ◽  
Allen Black ◽  
Xiaoyu Xu ◽  
John Seaman ◽  
...  
Keyword(s):  
Scientific Community ◽  
Savannah River Site ◽  
Culture Collection ◽  
Savannah River ◽  
Soil Microbiota ◽  
Isolation And Characterization ◽  
Comprehensive Survey ◽  
River Site

ABSTRACT Metagenomic assessment provides a comprehensive survey of soil microbiota; however, isolation and characterization of functionally relevant microbiota are required prior to their application(s), such as for metal remediation. Toward this end, we report the availability of a culture collection comprising uranium (U)-resistant microbial assemblages (CURMA) to the scientific community.

The isolation and characterization of 18 equine microsatellite loci, TKY272–TKY289

2000 ◽  
Vol 31 (2) ◽  
pp. 149-149 ◽  
Author(s):  
T Tozaki ◽  
H Kakoi ◽  
S Mashima ◽  
K Hirota ◽  
T Hasegawa ◽  
...  
Keyword(s):  
Microsatellite Loci ◽  
Isolation And Characterization
Sign in / Sign up

Export Citation Format

Share Document