Draft genome sequence of Arthrobacter sp. strain B6 isolated from the high-arsenic sediments in Datong Basin, China

Xu, Liguang; Shi, Wanxia; Zeng, Xian‐Chun; Yang, Ye; Zhou, Lingli; Mu, Yao; Liu, Yichen

doi:10.1186/s40793-017-0231-9

Cited by 15 publications

(6 citation statements)

References 29 publications

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“…Most of the heavy metals detoxification mechanisms of tolerance are mediated by mutant species, for example Arthrobacter spp. [107] or Bacillus spp. [108], which have been able to recombine DNA, and therefore incorporate at least one plasmid of some bacterial species that has expressed resistance as Alcaligenes xylosoxydans [109], Arthrobacter spp.…”

Section: Plant Growth Promoting Bacteriummentioning

confidence: 99%

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Review of Constructed Wetlands for Acid Mine Drainage Treatment

Pat-Espadas

Loredo-Portales

Amábilis-Sosa

et al. 2018

Water

106

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The mining industry is the major producer of acid mine drainage (AMD). The problem of AMD concerns at active and abandoned mine sites. Acid mine drainage needs to be treated since it can contaminate surface water. Constructed wetlands (CW), a passive treatment technology, combines naturally-occurring biogeochemical, geochemical, and physical processes. This technology can be used for the long-term remediation of AMD. The challenge is to overcome some factors, for instance, chemical characteristics of AMD such a high acidity and toxic metals concentrations, to achieve efficient CW systems. Design criteria, conformational arrangements, and careful selection of each component must be considered to achieve the treatment. The main objective of this review is to summarize the current advances, applications, and the prevalent difficulties and opportunities to apply the CW technology for AMD treatment. According to the cited literature, sub-surface CW (SS-CW) systems are suggested for an efficient AMD treatment. The synergistic interactions between CW components determine heavy metal removal from water solution. The microorganism-plant interaction is considered the most important since it implies symbiosis mechanisms for heavy metal removal and tolerance. In addition, formation of litter and biofilm layers contributes to heavy metal removal by adsorption mechanisms. The addition of organic amendments to the substrate material and AMD bacterial consortium inoculation are some of the strategies to improve heavy metal removal. Adequate experimental design from laboratory to full scale systems need to be used to optimize equilibria between CW components selection and construction and operational costs. The principal limitations for CW treating AMD is the toxicity effect that heavy metals produce on CW plants and microorganisms. However, these aspects can be solved partially by choosing carefully constructed wetlands components suitable for the AMD characteristics. From the economic point of view, a variety of factors affects the cost of constructed wetlands, such as: detention time, treatment goals, media type, pretreatment type, number of cells, source, and availability of gravel media, and land requirements, among others.

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Section: Plant Growth Promoting Bacteriummentioning

confidence: 99%

“…[108], which have been able to recombine DNA, and therefore incorporate at least one plasmid of some bacterial species that has expressed resistance as Alcaligenes xylosoxydans [109], Arthrobacter spp. [107], and Bacillus spp. [108].…”

Section: Plant Growth Promoting Bacteriummentioning

confidence: 99%

Review of Constructed Wetlands for Acid Mine Drainage Treatment

Pat-Espadas

Loredo-Portales

Amábilis-Sosa

et al. 2018

Water

106

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“…The behavior of Arthrobacter strains against arsenic is variable. Some strains are able to survive at high concentrations [ 75 ] but others only support low concentrations [ 76 ], like Arthrobacter sp. MC-D 3 A. Arthrobacter species are widely present in soils and environmental polluted with chemicals and heavy metals [ 75 ] and in water As contaminated [ 77 ].…”

Section: Discussionmentioning

confidence: 99%

“…Some strains are able to survive at high concentrations [ 75 ] but others only support low concentrations [ 76 ], like Arthrobacter sp. MC-D 3 A. Arthrobacter species are widely present in soils and environmental polluted with chemicals and heavy metals [ 75 ] and in water As contaminated [ 77 ]. It has been described as an endophytic PGP bacterium [ 78 ], but some strains have been recognized as opportunistic pathogens [ 79 ].…”

Section: Discussionmentioning

confidence: 99%

A Gnotobiotic Model to Examine Plant and Microbiome Contributions to Survival under Arsenic Stress

et al. 2020

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So far, the relative importance of the plant and its microbiome in the development of early stages of plant seedling growth under arsenic stress has not been studied. To test the role of endophytic bacteria in increasing plant success under arsenic stress, gnotobiotic seeds of J. montana were inoculated with two endophytic bacteria: Pantoea conspicua MC-K1 (PGPB and As resistant bacteria) and Arthrobacter sp. MC-D3A (non-helper and non-As resistant bacteria) and an endobacteria mixture. In holobiotic seedlings (with seed-vectored microbes intact), neither the capacity of germination nor development of roots and lateral hairs was affected at 125 μM As(V). However, in gnotobiotic seedlings, the plants are negatively impacted by absence of a microbiome and presence of arsenic, resulting in reduced growth of roots and root hairs. The inoculation of a single PGPB (P. conspicua-MCK1) shows a tendency to the recovery of the plant, both in arsenic enriched and arsenic-free media, while the inoculation with Arthrobacter sp. does not help in the recovery of the plants. Inoculation with a bacterial mixture allows recovery of plants in arsenic free media; however, plants did not recover under arsenic stress, probably because of a bacterial interaction in the mixture.

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“…Several Arthrobacter strains were isolated from the environment contaminated with chemicals and metals and often had high resistance to heavy metals (7, 8). Surprisingly, the genome of A.…”

Section: Announcementmentioning

confidence: 99%