The alignment of the 28S gene of several species of Pezizales allowed to select two pairs of primers able to amplify the internal transcribed spacer region of ribosomal DNA in mycorrhizal fungi, such as truffles. The higher yield of the amplification product demonstrates a better annealing of the new primers to the rDNA, as compared to the universal primers internal transcribed spacer 1 and int...

BACKGROUND Epidemiologic studies of atopic dermatitis (AD) in desert areas are still lacking. OBJECTIVE The aim of this study was to investigate the epidemiology of AD in children in Kerman city, a desert area in Iran. METHODS We evaluated preschool children (age, 2 to 7 years) and primary school students (age, greater than 7 up to 12 years) in Kerman. We selected 865 students to estimate t...

analyses and thermal infrared channels 4 and 5 NOAA- AVHRR images. This research was carried out in Lut Desert located in center of sub-tropical divergence dominant in' Iranian plateau. The physical and thermal properties of the various desert surfaces have been determined using correlation relationships between the desert variables including: dark sand, normal sand, marl, saline soil, soil dep...

Aroma is central to the worldwide success of truffles as gourmet food and high prices paid for these edible mushrooms. In this study, volatile organic compounds (VOCs) from fruiting bodies two Chinese commercial relevance, Tuber indicum pseudohimalayense, were analyzed using headspace solid-phase microextraction (HS-SPME) coupled with gas chromatography-mass spectrometry (GC-MS). We aimed chara...

Biological soil crusts are diverse assemblages of bacteria, cyanobacteria, algae, fungi, lichens, and mosses that cover much of arid land soils. The objective of this study was to quantify protozoa associated with biological soil crusts and test the response of protozoa to increased temperature and precipitation as is predicted by some global climate models. Protozoa were more abundant when ass...

The response of the Indian summer monsoon (ISM) circulation and precipitation to Middle East dust aerosols on sub-seasonal timescales is studied using observations and the Weather Research and Forecasting model coupled with online chemistry (WRF-Chem). Satellite data show that the ISM rainfall in coastal southwest India, central and northern India, and Pakistan is closely associated with the Mi...

Biogeographic barriers for freshwater biota can be effective at various spatial scales. At the largest spatial scale, freshwater organisms can become genetically isolated by their high mountain ranges, vast deserts, and inability to cross oceans. Isolation by distance of aquatic plants is expected to be stronger across than alongside mountain ridges whereas the heterogeneity of habitats among p...

Summer dust aerosol in the Taklimakan Desert (TD) affects not only albedo of snow and ice sheets on Tibetan Plateau (TP) but also air quality precipitation downstream areas. In this study, summer extreme activity TD was jointly investigated by using satellite observations MERRA-2 reanalysis datasets divided into two states: active period inactive period. The horizontal vertical distribution dur...