scholarly journals Genomic Comparison of Two Family-Level Groups of the Uncultivated NAG1 Archaeal Lineage from Chemically and Geographically Disparate Hot Springs

2017 ◽  
Vol 8 ◽  
Author(s):  
Eric D. Becraft ◽  
Jeremy A. Dodsworth ◽  
Senthil K. Murugapiran ◽  
Scott C. Thomas ◽  
J. Ingemar Ohlsson ◽  
...  
Keyword(s):  
Hot Springs ◽  
Genomic Comparison ◽  
Archaeal Lineage ◽  
Family Level

scholarly journals Brockarchaeota, a novel archaeal lineage capable of methylotrophy

2020 ◽  
Author(s):  
Valerie De Anda ◽  
Lin-Xing Chen ◽  
Nina Dombrowski ◽  
Zhengshuang Hua ◽  
Hong-Chen Jiang ◽  
...  
Keyword(s):  
Hot Springs ◽  
Phylogenetic Analyses ◽  
Methanogenic Archaea ◽  
Sulfate Reducing ◽  
Anoxic Environments ◽  
Archaeal Lineage ◽  
Acetogenic Bacteria ◽  
Reducing Bacteria ◽  
Globally Distributed ◽  
Global Carbon

Abstract Single carbon (C1) compounds such as methanol, methylamines and formaldehyde are ubiquitous in nature and they are large components of the carbon cycle. In anoxic environments C1-utilizing microbes (methylotrophs) play an important role in controlling global carbon degradation. Currently described anaerobic methylotrophs are limited to methanogenic archaea, acetogenic bacteria, and sulfate-reducing bacteria. Here, we report the first archaeal lineage outside of methanogenic taxa that are capable of anaerobic methylotrophy. Phylogenetic analyses suggest these archaea form a new phylum within the TACK superphylum, which we propose be named Brockarchaeota. A survey revealed Brockarchaeota are globally distributed in geothermal springs. Metabolic inference from 15 metagenome-assembled genomes from hot springs and deep-sea sediments indicates that Brockarchaeota are strict anaerobes. They contain a variety C1 metabolisms including the methanol and trimethylamine methyltransferases system, the ribulose bisphosphate pathway coupled with the non-oxidative pentoses phosphate pathway, and reductive glycine pathway. Brockarchaeota have an incomplete methyl-branch of the Wood-Ljungdahl pathway probably used for formaldehyde oxidation, since they lack several core genes involved in methanogenesis including methyl-CoM reductases. Brockarchaeota also appear to play an important role in the breakdown of plant-derived polysaccharides, especially cellulose, starch and xylan. Their broad distribution and their capacity to use both C1 compounds and complex polysaccharides via anaerobic metabolism suggest that the Brockarchaeota occupy previously overlooked roles in carbon cycling.

scholarly journals A Novel Archaeal Lineage in Boiling Hot Springs around Oyasukyo Gorge (Akita, Japan)

2021 ◽  
Vol 36 (4) ◽  
pp. n/a
Author(s):  
Katsuhiro Asamatsu ◽  
Kai Yoshitake ◽  
Makoto Saito ◽  
Wipoo Prasitwuttisak ◽  
Jun-ichiro Ishibashi ◽  
...  
Keyword(s):  
Hot Springs ◽  
Archaeal Lineage

The Hot Springs Conference

1945 ◽  
Vol 14 (2) ◽  
pp. 16-22
Author(s):  
William C. Johnstone
Keyword(s):  
Hot Springs

Vickers Hot Springs

2017 ◽  
Vol 1 (1) ◽  
pp. 1-6
Author(s):  
Jennifer M. Bernstein
Keyword(s):  
Common Good ◽  
Common Property ◽  
Hot Springs ◽  
Public Access ◽  
Common Property Resource ◽  
Resource Conflict ◽  
Social Ecological ◽  
The Commons ◽  
Local Residents ◽  
The Common

Vickers Hot Springs is located near the rural Southern California town of Ojai, and local residents have long enjoyed soaking in the sulfuric pools. But as knowledge of the springs spread, the area saw increases in fights, traffic, burglaries, and drug use. In response, two residents purchased the land and committed to restore the property while allowing limited public access, subsequently generating a great deal of controversy within the community. Privatizing Vickers Hot Springs follows the archetypical lesson of Garrett Hardin's 1968 essay, “The Tragedy of the Commons.” Hardin stated that the problem for common-pool resources was that a finite amount of services are demanded by a potentially infinite number of users, who have little to gain by sacrificing for the common good. But Hardin's theory does not always apply. Many communities have come together to manage resources, often without government oversight. Thus, the question is not whether or not Hardin's theory is accurate, but rather “under what conditions it is correct and when it makes the wrong predictions.” Case studies provide nuance to the broad brushstrokes of a theory, and whether Hardin's parable is applicable depends on the particularities of the common property resource conflict. Employing the frameworks established by Hardin, Dietz et al., and Ostrom, this paper examines the management of Vickers Hot Springs within its broader social, ecological, and political context, asking whether the particular circumstances of this resource use conflict made privatization the most predictable outcome.

Strategies for Survival of the World — Risk Management

2019 ◽  
Vol 10 (4) ◽  
Author(s):  
Jovo Lojanica ◽  
Keyword(s):  
Risk Management ◽  
Native Americans ◽  
National Level ◽  
Country Level ◽  
Management Standards ◽  
Family Level ◽  
Future Challenges ◽  
Iso 31000 ◽  
History Of ◽  
Personal Level

All management standards have requirements for different aspects of improvements on the personal level, family level, company level, in business and life. What is about national level and country level? Is it possible for today’s generations to learn history of nations and of civilizations? If it is — ok, let’s apply it on actual time and people to have less problems and difficulties — especially if is actual in field of risk management. Majority of people are occupied by today’s problems. They don’t consider past and future challenges. People from each country strive for better quality, better and cleaner environment, higher safety etc. historically and today. But could we remember: How did Genghis Khan conquer many regions and how was he defeated? How did Mayas and Aztecs die out? How were Native Americans in North America drastically reduced in numbers? How did the Roman Imperium vanish? How was the Ottoman Imperium established and how it vanished? How many people were killed in the wars in XX century, etc? In all these catastrophic changes risks were not considered in an adequate way. Requirements of risk management — Principles and guidelines — ISO 31000:2009 are very consultative. They could be used on country level, national level, regional level, continental and intercontinental level.

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