scholarly journals Distinctive Archaeal Composition of an Artisanal Crystallizer Pond and Functional Insights Into Salt-Saturated Hypersaline Environment Adaptation

2018 ◽  
Vol 9 ◽  
Author(s):  
Alvaro M. Plominsky ◽  
Carlos Henríquez-Castillo ◽  
Nathalie Delherbe ◽  
Sheila Podell ◽  
Salvador Ramirez-Flandes ◽  
...  
Keyword(s):  
Hypersaline Environment ◽  
Environment Adaptation ◽  
Crystallizer Pond

scholarly journals Unusually High Archaeal Diversity in a Crystallizer Pond, Pomorie Salterns, Bulgaria, Revealed by Phylogenetic Analysis

Archaea ◽  
2016 ◽  
Vol 2016 ◽  
pp. 1-9 ◽  
Author(s):  
Margarita Kambourova ◽  
Iva Tomova ◽  
Ivanka Boyadzhieva ◽  
Nadja Radchenkova ◽  
Evgenia Vasileva-Tonkova
Keyword(s):  
Phylogenetic Analysis ◽  
16S Rrna ◽  
Community Composition ◽  
Archaeal Community ◽  
Hypersaline Environment ◽  
Archaeal Diversity ◽  
Operational Taxonomic Units ◽  
Crystallizer Pond ◽  
Rrna Sequences ◽  
16S Rrna Sequences

Recent studies on archaeal diversity in few salterns have revealed heterogeneity between sites and unique structures of separate places that hinder drawing of generalized conclusions. Investigations on the archaeal community composition in P18, the biggest crystallizer pond in Pomorie salterns (PS) (34% salinity), demonstrated unusually high number of presented taxa in hypersaline environment. Archaeal clones were grouped in 26 different operational taxonomic units (OTUs) assigned to 15 different genera from two orders, Halobacteriales and Haloferacales. All retrieved sequences were related to culturable halophiles or unculturable clones from saline (mostly hypersaline) niches. New sequences represented 53.9% of archaeal OTUs. Some of them formed separate branches with 90% similarity to the closest neighbor. Present results significantly differed from the previous investigations in regard to the number of presented genera, the domination of some genera not reported before in such extreme niche, and the identification of previously undiscovered 16S rRNA sequences.

Response analysis of fluorescence parameters of tomato seedlings oriented to vertical light environment adaptation

Plant Science ◽  
2022 ◽  
Vol 314 ◽  
pp. 111118
Author(s):  
Danyan Chen ◽  
Kaikai Yuan ◽  
Junhua Zhang ◽  
Zhisheng Wang ◽  
Zhangtong Sun ◽  
...  
Keyword(s):  
Light Environment ◽  
Response Analysis ◽  
Fluorescence Parameters ◽  
Tomato Seedlings ◽  
Environment Adaptation

scholarly journals FORMATION OF COMPLETE REFLEX CONSTRUCTIONS OF FUTURE PEDAGOGUE IN THE EDUCATIONAL ENVIRONMENT OF HIGHER EDUCATION

2019 ◽  
Vol 6 (1) ◽  
pp. 28-36
Author(s):  
VIKTORIYA ZHELANOVA
Keyword(s):  
Higher Education ◽  
Educational Environment ◽  
Future Teacher ◽  
Environment Adaptation ◽  
The Future

The article substantiates the relevance and expediency of the implementation of reflexively oriented education of a future teacher in a modern institution of higher education. The essence of reflexive constructs of the future teacher as unity of reflexive competence and reflexively deterministic constructs is revealed. The reflexive competence of the future teacher is defined as professional-personal metaquality and is represented in two planes: 1) as an independent construct; 2) as a determinant, which determines the development of reflexively saturated constructs. In the context of reflexive determination, the motivational, semantic and subjective fields of personality are presented. The directions of the process of transformation of components of reflexive competence, as well as motives, meanings, professional subjectivity in the plane of their reflexive determination are revealed. The phenomenon of the educational environment of the institution of higher education is analyzed and attention is focused on its reflexive orientation. The logic and peculiarities of the formation of reflexive constructs of the future teacher in accordance with the phases of the environment (adaptation to the environment, the active reproduction of the environment by students, the active influence of students on the environment and the independent creation of the environment) are highlighted.

scholarly journals Exploring Microbial Resource of Different Rhizocompartments of Dominant Plants Along the Salinity Gradient Around the Hypersaline Lake Ejinur

2021 ◽  
Vol 12 ◽  
Author(s):  
Junqing Luo ◽  
Zhechao Zhang ◽  
Yazhou Hou ◽  
Fengwei Diao ◽  
Baihui Hao ◽  
...  
Keyword(s):  
High Throughput Sequencing ◽  
Salt Lake ◽  
Salinity Gradient ◽  
Salt Lakes ◽  
Hypersaline Environment ◽  
Hypersaline Lake ◽  
Littoral Zones ◽  
Microbial Resources ◽  
Bacteria And Fungi

Lake littoral zones can also be regarded as another extremely hypersaline environment due to hypersaline properties of salt lakes. In this study, high-throughput sequencing technique was used to analyze bacteria and fungi from different rhizocompartments (rhizosphere and endosphere) of four dominant plants along the salinity gradient in the littoral zones of Ejinur Salt Lake. The study found that microbial α-diversity did not increase with the decrease of salinity, indicating that salinity was not the main factor on the effect of microbial diversity. Distance-based redundancy analysis and regression analysis were used to further reveal the relationship between microorganisms from different rhizocompartments and plant species and soil physicochemical properties. Bacteria and fungi in the rhizosphere and endosphere were the most significantly affected by SO42–, SOC, HCO3–, and SOC, respectively. Correlation network analysis revealed the potential role of microorganisms in different root compartments on the regulation of salt stress through synergistic and antagonistic interactions. LEfSe analysis further indicated that dominant microbial taxa in different rhizocompartments had a positive response to plants, such as Marinobacter, Palleronia, Arthrobacter, and Penicillium. This study was of great significance and practical value for understanding salt environments around salt lakes to excavate the potential microbial resources.

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