Results 1 to 10 of about 1,157 (196)

The Mechanism of Microbial-Ferromanganese Nodule Interaction and the Contribution of Biomineralization to the Formation of Oceanic Ferromanganese Nodules [PDF]

Microorganisms, 2021
Ferromanganese nodules are an important mineral resource in the seafloor; however, the genetic mechanism is still unknown. The biomineralization of microorganisms appears to promote ferromanganese nodule formation.
Jing Lyu, Xinke Yu, Mingyu Jiang, Wenrui Cao, Gaowa Saren, Fengming Chang   +5 more
doaj   +5 more sources

Microbial communities associated with ferromanganese nodules and the surrounding sediments [PDF]

Frontiers in Microbiology, 2013
The formation and maintenance of deep-sea ferromanganese/polymetallic nodules still remains a mystery 140 years after their discovery. The wealth of rare metals concentrated in these nodules has spurred global interest in exploring the mining potential ...
Benjamin John Tully, John F Heidelberg
doaj   +5 more sources

Microbe-driven elemental cycling enables microbial adaptation to deep-sea ferromanganese nodule sediment fields [PDF]

Microbiome, 2023
Background Ferromanganese nodule-bearing deep-sea sediments cover vast areas of the ocean floor, representing a distinctive habitat in the abyss. These sediments harbor unique conditions characterized by high iron concentration and low degradable ...
Dechao Zhang, Xudong Li, Yuehong Wu, Xuewei Xu, Yanxia Liu, Benze Shi, Yujie Peng, Dadong Dai, Zhongli Sha, Jinshui Zheng   +9 more
doaj   +2 more sources

Fast-growing Arctic Fe–Mn deposits from the Kara Sea as the refuges for cosmopolitan marine microorganisms [PDF]

Scientific Reports, 2022
The impact of biomineralization and redox processes on the formation and growth of ferromanganese deposits in the World Ocean remains understudied. This problem is particularly relevant for the Arctic marine environment where sharp seasonal variations of
Natalia Shulga, Sergey Abramov, Alexandra Klyukina, Konstantin Ryazantsev, Sergey Gavrilov   +4 more
doaj   +2 more sources

Genomic insights into the alphaproteobacterium Georhizobium sp. MAB10 revealed a pathway of Mn(II) oxidation-coupled anoxygenic photoautotrophy: a novel understanding of the biotic process in deep-sea ferromanganese nodule formation [PDF]

mBio
Under light conditions, Mn(II) facilitates the photoautotrophic growth of Georhizobium sp. MAB10, a strain derived from deep-sea ferromanganese nodules, along with the generation of dark Mn oxides (β-MnO2). This study investigated the genetic basis of Mn(
Xiuli Xu, Litao Zhang, Fuhang Song, Guoliang Zhang, Linlin Ma, Na Yang   +5 more
doaj   +2 more sources

Non-proteinogenic β-alanine metabolism in Halomonas sp. MNB13 regulates manganese reduction in deep-sea ferromanganese nodules [PDF]

Applied and Environmental Microbiology
Deep-sea ferromanganese nodules are valuable materials for investigating microorganism-mediated geochemical cycling of manganese. While many microbial metabolic pathways are closely associated with manganese reduction, few studies have examined the role ...
Shuju Guo, Xiuli Xu, Hui Shuai, Fuhang Song, Guoliang Zhang, Linlin Ma, Na Yang   +6 more
doaj   +2 more sources

Rotation of a Ferromanganese Nodule in the Penrhyn Basin, South Pacific, Tracked by the Earth's Magnetic Field

Geochemistry, Geophysics, Geosystems, 2023
Ferromanganese nodules are cm‐sized, authigenic, abyssal manganese‐iron‐hydroxide concretions. They grow very slowly at rates of a few mm per million years.
Hirokuni Oda, MURAYAMA MASAFUMI, Yuhji Yamamoto   +2 more
exaly   +2 more sources

Understanding Mn-nodule distribution and evaluation of related deep-sea mining impacts using AUV-based hydroacoustic and optical data [PDF]

Biogeosciences, 2018
In this study, ship- and autonomous underwater vehicle (AUV)-based multibeam data from the German ferromanganese-nodule (Mn-nodule) license area in the Clarion–Clipperton Zone (CCZ; eastern Pacific) are linked to ground-truth data from optical imaging.
A. Peukert, T. Schoening, E. Alevizos, K. Köser, T. Kwasnitschka, J. Greinert, J. Greinert   +6 more
doaj   +4 more sources

Geochemistry of ferromanganese nodules in the soil of Okinawa Island, Japan: Paleoclimatic implications and discrimination scheme of the nodule origins

Journal of Asian Earth Sciences: X, 2022
Shimajiri–Mahji refers to dark-red soil covering Ryukyu limestone that is characterized by buried ferromanganese (Fe–Mn) nodules, and it is widely distributed in Okinawa Island, southwestern Japan.
Keishiro Azami, Kazutaka Yasukawa, Yasuhiro Kato   +2 more
exaly   +3 more sources

Microscale characterization and trace element distribution in bacteriogenic ferromanganese coatings on sand grains from an intertidal zone of the East China Sea. [PDF]

PLoS ONE, 2015
An ancient wood layer dated at about 5600 yr BP by accelerator mass spectrometry (AMS) 14C was discovered in an intertidal zone of the East China Sea. Extensive and horizontally stratified sediments with black color on the top and yellowish-red at the ...
Linxi Yuan, Liguang Sun, Danielle Fortin, Yuhong Wang, Xuebin Yin   +4 more
doaj   +2 more sources