There was investigated the dynamics of growth of Listeria monocytogenes and Yersinia pseudotuberculosis in soils of sea coast (mid-flight and maritime soils). These bacteria were shown to reproduced well in all researched soils, preferring nevertheless maritime soils. The content of the humus was determined to be the one of the limiting factors restricting the multiplication of pathogenic bacteria in studied soils. Abiotic characteristic of soils of sea coast were established to render the direct positive influence on the preservation and reproduction of pathogenic microflora in them. This is promoted by a degree of a saturation by the bases, cation-exchange capacity, quantity of humus. In the formation of environmental policy it should be taken into account and the human-induced load on the soil should be limited
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J Environ Manage
January 2025
College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao, 266100, China.
This study employed in-situ online monitoring to assess the impact of Spartina alterniflora harvesting on greenhouse gas emissions. Their fluxes and δC values were measured in unvegetated tidal flat, low and medium vegetation coverage areas of the salt marsh wetlands along the south shore of Hangzhou Bay about a month after harvest. The objective was to clarify fluxes changes and interactions with environmental factors.
View Article and Find Full Text PDFPhysiol Plant
January 2025
School of Plant Sciences and Food Security, Faculty of Life Sciences, Tel Aviv University, Israel.
Plant chemical composition is a trait gaining increasing importance in plant ecology. However, there is limited research on the patterns and drivers of its variation among different plant functional groups and bioclimatic regions. We conducted an analysis of ionomes utilising X-ray fluorescence on 83 plant species from four distinct functional groups (grasses, legumes, forbs and woody species); we marked plots across 15 sites located in both the desert and Mediterranean bioclimatic regions.
View Article and Find Full Text PDFFront Microbiol
January 2025
School of Ecology and Environment, Tibet University, Lhasa, China.
Soil microbial communities play a vital role in accelerating nutrient cycling and stabilizing ecosystem functions in forests. However, the diversity of soil microbiome and the mechanisms driving their distribution patterns along elevational gradients in montane areas remain largely unknown. In this study, we investigated the soil microbial diversity along an elevational gradient from 650 m to 3,800 m above sea level in southeast Tibet, China, through DNA metabarcode sequencing of both the bacterial and fungal communities.
View Article and Find Full Text PDFIsotopes Environ Health Stud
January 2025
Research Institute of Biology, Yerevan State University, Yerevan, Republic of Armenia.
Plant test systems are a sensitive way to detect the genetic effects of various contaminants in environmental compartments: water, soil and sediments. Biotesting of the genotoxicity of soil samples with various activity concentrations of naturally occurring (Ra, Th, K) and artificial (Cs) radionuclides in soil, from the territory of the Aragats Massif (Armenia) was carried out with the application of the micronucleus (Trad-MСN) and stamen hair mutation (Trad-SHM) bioassays of (clone 02) model test-object in the soil - plant system. Undisturbed soil sampling was performed in the southern slopes of the Aragats Massif, from different altitudes (from 1000 to 3200 m above sea level).
View Article and Find Full Text PDFFungal Syst Evol
December 2024
Westerdijk Fungal Biodiversity Institute, P.O. Box 85167, 3508 AD Utrecht, The Netherlands.
Novel species of fungi described in this study include those from various countries as follows: , from accumulated snow sediment sample. , on leaf spots of . , on submerged decaying wood in sea water, on , as endophyte from healthy leaves of .
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