The different depth snow samples were collected from the Miaoergou glacier in East Tianshan Mountains regions, China. Total bacteria counts were established by 4',6- diamino-2-phenylindole (DAPI). Both culture-dependent and culture-independent methods, denaturing gradient gel electrophoresis (DGGE), were used to examine the bacterial diversity and community structure. The microbial abundance and diversity index have a close relationship with mineral particle concentration. These mineral particles, such as Ca2+ , Mg2+, and Cl- etc, are good indicators of climate and environment. The 16S rDNA gene both of cultured bacteria and DGGE band sequenced belong to following groups: proteobacteria (alpha-, beta-, gamma-), Cytophaga- Flavobacterium-Bacteroides (CFB), High GC and Low GC. Among these, Proteobacteria and CFB are dominant groups. Compare with bacteria revealed from ice and snow in Qinghai-Tibet Plateau, South Pole and North Pole which have been reported, Paracoccu sp. and Aquasalina sp. are especially exist in this study area as far as we know. The microbial abundance and community structure are all changed obviously in different depth snow samples. It indicates that the snow bacteria community is influenced by many factors. The results show that because the special geographical position of the East Tianshan Mountains, microorganism in ice and snow of this area has its particularity.
Download full-text PDF |
Source |
|---|
Publication Analysis
Top Keywords
Similar Publications
Comparative Transcriptome Analysis of Mutant () and Wild-Type (Xin W 139) Plants During Seed Embryo Development.
Genes (Basel)
October 2024
Institute of Cash Crops, Xinjiang Academy of Agricultural Sciences, Urumqi 830091, China.
Article Synopsis
- Cotton seeds are vital byproducts of cotton crops, but seed embryo abortion can reduce yield and cause economic losses.
- This study compared mutant and wild-type cotton lines through phenotypic evaluation and RNA-seq analysis, identifying significant differences in seed embryo development starting after 20 days post anthesis.
- A total of 29,151 differentially expressed genes were found, with key genes related to fatty acid and glucose metabolism, providing insights into the molecular mechanisms of cottonseed embryo development and potential genetic targets for further research.
Epidemiology and genetic diversity of Echinococcus granulosus sensu stricto in the East Tianshan Mountains, Xinjiang, China.
Parasitol Res
November 2024
Xinjiang Academy of Animal Sciences, Animal Clinical Medical Research Center of Xinjiang Academy of Animal Science, National Animal Echinococcosis Reference Laboratory, Urumqi, Xinjiang Province, 830010, PR China.
Article Synopsis
- - The study examined cystic echinococcosis (CE) in domestic animals in the East Tianshan Mountains of Xinjiang, China, analyzing 1773 animals and finding a higher prevalence in sheep (6.92%) compared to cattle (1.57%).
- - Genetic analysis of 40 cyst isolates revealed all belonged to the G1 genotype, with a main haplotype (Hap_7) identified, and genetic diversity was lower in this region compared to others, indicating a less differentiated population.
- - The study suggests a population expansion in the East Tianshan area, with a low fixation index indicating frequent gene flow among populations in Gansu and Mongolia, plus the identification of two new hap
A large-scale retrospective study in China explores risk factors for disease severity in plaque psoriasis.
Sci Rep
October 2024
Department of Dermatology, Huazhong University of Science and Technology Union Shenzhen Hospital (The 6th Affiliated Hospital of Shenzhen University Medical School), No. 89 Taoyuan Road, Nanshan District, Shenzhen, 518052, Guangdong, China.
Severe psoriasis has a long course and poor outcome, and it has long been a problem for patients. Understanding the independent risk factors that contribute to patients with severe psoriasis is critical for the development of effective treatment strategies. This large, multicenter study recruited 2,109 plaque psoriasis patients from 12 hospitals across China (October 31, 2019 - May 31, 2022).
View Article and Find Full Text PDFUnraveling the neuroprotective potential of scalp electroacupuncture in ischemic stroke: A key role for electrical stimulation.
Neuroscience
December 2024
The Second Affiliated Hospital of Heilongjiang University of Chinese Medicine, No. 411, The Street of Guogeli, Harbin 150001, Heilongjiang, China. Electronic address:
Article Synopsis
- This study investigates how scalp Electroacupuncture (EA) may protect the brain during ischemic stroke, focusing on the effects of electrical stimulation (ES) in a rat model.
- Results showed that EA significantly reduced brain damage, improved blood flow, and enhanced the integrity of blood vessels in treated rats.
- Further analyses indicated that EA reduced inflammation and regulated immune responses, suggesting it could be an effective treatment strategy for ischemic stroke.
Characteristics of Open-Graded Friction Course Macrotexture and Macrostructure and Its Effect on Skid Resistance under Rainfall.
Materials (Basel)
September 2024
School of Civil Engineering and Architecture, East China Jiaotong University, Nanchang 330013, China.
Article Synopsis
- An Open-Graded Friction Course (OGFC) is designed for improved skid resistance on wet surfaces and has a distinct rough and porous structure compared to denser mixtures.
- This study examined OGFC's surface macrotexture distribution and internal characteristics, such as porosity and void size, using advanced imaging techniques.
- Findings indicate that finer gradations create surface roughness peaks that benefit water drainage, while coarser mixtures improve effective contact depth, leading to better skid resistance during heavy rainfall.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!