Update of “Biodiversity of the Hypersaline Urmia Lake National Park (NW Iran)”

Asem, Alireza; Eimanifar, Amin

doi:10.3390/d8010006

Cited by 12 publications

(6 citation statements)

References 10 publications

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“…Rhodotorula was recovered from hypersaline ponds in Israel [84]. The Chaetomiaceae family was recovered together with 19 inhabiting hyphomycetes fungi in soils from the hypersaline Urmia Lake [85]. Thus, a high diversity of fungi has been found in hypersaline environments, where the most abundant are melanized Aspergillus , which is a ubiquitous genus used in biotechnology applications for its production of citric acid and enzymes, and non-melanized Rhodotorula , which comprises several species that can be used in bioremediation [86].…”

Section: Resultsmentioning

confidence: 99%

Intermediate-Salinity Systems at High Altitudes in the Peruvian Andes Unveil a High Diversity and Abundance of Bacteria and Viruses

Castelán-Sánchez

Elorrieta

Romoacca

et al. 2019

Genes

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Intermediate-salinity environments are distributed around the world. Here, we present a snapshot characterization of two Peruvian thalassohaline environments at high altitude, Maras and Acos, which provide an excellent opportunity to increase our understanding of these ecosystems. The main goal of this study was to assess the structure and functional diversity of the communities of microorganisms in an intermediate-salinity environment, and we used a metagenomic shotgun approach for this analysis. These Andean hypersaline systems exhibited high bacterial diversity and abundance of the phyla Proteobacteria, Bacteroidetes, Balneolaeota, and Actinobacteria; in contrast, Archaea from the phyla Euryarchaeota, Thaumarchaeota, and Crenarchaeota were identified in low abundance. Acos harbored a more diverse prokaryotic community and a higher number of unique species compared with Maras. In addition, we obtained the draft genomes of two bacteria, Halomonas elongata and Idiomarina loihiensis, as well as the viral genomes of Enterobacteria lambda-like phage and Halomonas elongata-like phage and 27 partial novel viral halophilic genomes. The functional metagenome annotation showed a high abundance of sequences associated with detoxification, DNA repair, cell wall and capsule formation, and nucleotide metabolism; sequences for these functions were overexpressed mainly in bacteria and also in some archaea and viruses. Thus, their metabolic profiles afford a decrease in oxidative stress as well as the assimilation of nitrogen, a critical energy source for survival. Our work represents the first microbial characterization of a community structure in samples collected from Peruvian hypersaline systems.

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Section: Resultsmentioning

confidence: 99%

Intermediate-Salinity Systems at High Altitudes in the Peruvian Andes Unveil a High Diversity and Abundance of Bacteria and Viruses

Castelán-Sánchez

Elorrieta

Romoacca

et al. 2019

Genes

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“…The embryos were crushed via a sterilized pipette tip, incubated for 2.5–3 h at 60 °C (tubes were shaken by vortex every 30 min) and eventually for 10 min at 80 °C. The tubes were centrifuged at 10,000 rpm for 1 min and the supernatant phase was directly used in the PCR reaction (Montero-Pau, Gómez & Muñoz, 2008; Eimanifar & Wink, 2013; Asem, Eimanifar & Sun, 2016; Asem, Eimanifar & Wink, 2016). The extracted DNA was stored at −80 °C for further genetic analyses.…”

Section: Methodsmentioning

confidence: 99%

“…Based on its unique biodiversity, environmental gradients, socio-economic importance and existence of indigenous communities, Urmia Lake has been registered as a protected area since 1967 and as a national park since 1975. Because of its importance for migratory birds, it was also registered in the Ramsar Convention on Wetlands as a wetland of international importance in 1975 and considered as one of the 59 biosphere reserves by UNESCO in 1976 (Eimanifar & Mohebbi, 2007; Asem et al, 2014; Asem, Eimanifar & Sun, 2016; Asem, Eimanifar & Wink, 2016).…”

Section: Introductionmentioning

confidence: 99%

The impact of one-decade ecological disturbance on genetic changes: a study on the brine shrimpArtemia urmianafrom Urmia Lake, Iran

Asem

Eimanifar²,

Stappen

et al. 2019

PeerJ

Self Cite

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Urmia Lake, the largest natural habitat of the brine shrimp Artemia urmiana, has progressively desiccated over the last two decades, resulting in a loss of 80% of its surface area and producing thousands of hectares of arid salty land. This ecological crisis has seriously affected the lake’s native biodiversity. Artemia urmiana has lost more than 90% of its population during the decade from 1994 (rainy period) to 2004 (drought period) due to salinity increasing to saturation levels (∼300 g/l). We studied the influence of this ecological crisis on the genetic diversity of A. urmiana in Urmia Lake, based on one cyst collections in 1994 and 2004. AMOVA analysis on ISSR data demonstrated a 21% genetic variation and there was a 5.5% reduction of polymorphic loci between samples. PCoA showed that 77.42% and 68.75% of specimens clustered separately in 1994 and 2004, respectively. Our analyses of four marker genes revealed different genetic diversity patterns with a decrease of diversity at ITS1 and an increase for Na+/K+ ATPase. There was no notable difference in genetic variation detected for COI and 16S genes between the two periods. However, they represented distinctly different haplotypes. ITS1 and COI followed a population expansion model, whereas Na+/K+ ATPase and 16S were under demographic equilibrium without selective pressure in the 1994 samples. Neutrality tests confirmed the excess of rare historical and recent mutations present in COI and ITS1 in both samples. It is evident that a short-term ecological disturbance has impacted the genetic diversity and structure of A. urmiana.

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“…Lake Urmia is a national protected area registered in the UNESCO's World Heritage List for being the world's second-largest saline lake and home to diverse flora and fauna. Lake Urmia is a safe harbor for 62 species of archaebacteria and bacteria, 42 kinds of microfungi, 20 species of phytoplankton, 311 kinds of plants, five species of mollusca, 226 species of birds, 27 species of amphibians and reptiles, and 24 species of mammals [58][59][60]. The declining water level increased the concentration of saline solution from 300 to about 400 g/L [61,62].…”

Section: The Consequences Of Shrinking Of Lake Urmiamentioning

confidence: 99%

Monitoring and Assessment of Water Level Fluctuations of the Lake Urmia and Its Environmental Consequences Using Multitemporal Landsat 7 ETM+ Images

Nhu

Mohammadi

Shahabi

et al. 2020

IJERPH

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The declining water level in Lake Urmia has become a significant issue for Iranian policy and decision makers. This lake has been experiencing an abrupt decrease in water level and is at real risk of becoming a complete saline land. Because of its position, assessment of changes in the Lake Urmia is essential. This study aims to evaluate changes in the water level of Lake Urmia using the space-borne remote sensing and GIS techniques. Therefore, multispectral Landsat 7 ETM+ images for the years 2000, 2010, and 2017 were acquired. In addition, precipitation and temperature data for 31 years between 1986 and 2017 were collected for further analysis. Results indicate that the increased temperature (by 19%), decreased rainfall of about 62%, and excessive damming in the Urmia Basin along with mismanagement of water resources are the key factors in the declining water level of Lake Urmia. Furthermore, the current research predicts the potential environmental crisis as the result of the lake shrinking and suggests a few possible alternatives. The insights provided by this study can be beneficial for environmentalists and related organizations working on this and similar topics.

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Update of “Biodiversity of the Hypersaline Urmia Lake National Park (NW Iran)”

Cited by 12 publications

References 10 publications

Intermediate-Salinity Systems at High Altitudes in the Peruvian Andes Unveil a High Diversity and Abundance of Bacteria and Viruses

Intermediate-Salinity Systems at High Altitudes in the Peruvian Andes Unveil a High Diversity and Abundance of Bacteria and Viruses

The impact of one-decade ecological disturbance on genetic changes: a study on the brine shrimpArtemia urmianafrom Urmia Lake, Iran

Monitoring and Assessment of Water Level Fluctuations of the Lake Urmia and Its Environmental Consequences Using Multitemporal Landsat 7 ETM+ Images

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