Interactions between the gut micro-community and transcriptome of Culex pipiens pallens under low-temperature stress.

Background: Culex pipiens pallens (Diptera: Culicidae) can survive at low temperature for long periods. Understanding the effects of low-temperature stress on the gut microflora and gene expression levels in Cx. pipiens pallens, as well as their correlation, will contribute to the study of the overwintering mechanism of Cx.

[Study on the mechanisms underlying overwintering of using iTRAQ-based quantitative proteomic analysis].

Objective: To compare the difference of protein expression between the post-overwintering stage and the diapauses preparation stage in , so as to reveal the mechanisms underlying the overwintering diapause of .

Methods: A quantitative proteomic analysis was performed in before and after overwintering diapause by using isobaric tags for relative and absolute quantification (iTRAQ) labeling.

Results: A total of 244 differentially expressed proteins were identified in before and after overwintering diapause, including 126 up-regulated proteins and 118 down-regulated proteins.

[Seasonal fluctuations of mosquitoes and application of two surveillance tools in Taibai Lake area of Jining City].

Objective: To investigate the seasonal fluctuations of mosquitoes in Taibai Lake area of Jining City, and evaluate the application effects of two mosquito trapping tools (Gongfu Xiaoshuai mosquito lamp and WJ-C mosquito sampler), so as to provide references for the effective surveillance, prevention and control of local mosquito vectors.

Methods: The overnight capture of mosquitoes with a man-bait net trap, Gongfu Xiaoshuai mosquito lamp, and WJ-C mosquito sampler was performed to collect mosquitoes. The species of adult mosquitoes and seasonal fluctuations were investigated and analyzed.

[Overwintering surveillance of in Shandong Province].

Objective: To understand the ecological habits of in Shandong Province in winter.

Methods: From December 2015 to January 2016, the overwintering conditions of were investigated in Shandong Province.

Results: In Shandong Province, in rural districts, the overwintering places of were basements, wells and caves; and in urban areas, they were air raid shelters, holes of city walls, sewers and flower cellars.

[Analysis of population genetic diversity of mosquitoes from Shandong Province based on mitochondrial DNA cytochrome oxidase subunit I gene fragment].

Objective: To explore the characteristics of gene sequence of mtDNA-COⅠ of from different geographical regions in Shandong Province and different resistant strains from the lab and five common mosquito species, and analyze the genetic diversity of these mosquitoes.

Methods: Adult mosquitoes were collected from Jinan, Jining, Qingdao cities and other places in Shandong Province. The sensitive, dichlorvos-resistant, pyrethroid-resistant and propoxur-resistant strains were reared in the lab.

Epidemiological analysis of 133 malaria cases in Shanxian county, Shandong Province, China.

Objective: To conduct an analysis of the epidemiological changes in malaria that have occurred in Shanxian county from 2002 to 2016.

Methods: A retrospective study was conducted and data were collected from web-based reporting system to explore the epidemiological characteristics in Shanxian county from 2002 to 2016. All individual case information was obtained from village malaria servicers organized by the local Shandong Institute of Parasitic Diseases.

[Investigation on overwintering mosquitoes in Taibaihu District, Jining City].

Objective: To investigate the species, density and distribution of the overwintering adult mosquitoes in Taibaihu District, Jining City.

Methods: The overwintering adult mosquitoes were monitored by visual observation in Taibaihu District, Jining City from December 2015 to March 2016. The mosquitoes were collected and dissected to observe the body fat accumulation and ovarian development situation.

Resistance Level of Mosquito Species (Diptera: Culicidae) from Shandong Province, China.

This study describes the aquatic habitats, species composition, and the insecticide resistance level of the mosquito Culex pipiens pallens in Shandong Province, China. A cross-sectional survey of mosquito larval habitats was conducted from May to November 2014 to determine the species composition and larval abundance. Larvae were collected using the standard dipping technique, and a total of four habitat types were sampled.

[Experimental observation on host preference of Anopheles sinensis].

Objective: To observe the host preference of Anopheles sinensis captured by outdoor human or cattle baits.

Methods: A large number of non-blood-fed An. sinensis females were collected by overnight trapping outdoor with human and cattle in the rice paddy field in Shan County of Shandong Province, and took back to the lab, and individually labeled as human baits group and cattle baits group, fed with mouse blood.

Serratia nematodiphila sp. nov., associated symbiotically with the entomopathogenic nematode Heterorhabditidoides chongmingensis (Rhabditida: Rhabditidae).

A novel red-pigmented, Gram-negative, motile, fluorescent, rod-shaped strain, DZ0503SBS1(T), with a single lateral flagellum, was isolated from the intestine of the nematode Heterorhabditidoides chongmingensis. Comparative 16S rRNA gene sequence analysis indicated that the strain is a member of the genus Serratia, sharing highest sequence similarities with Serratia marcescens subsp. sakuensis JCM 11315(T) (99.

Sphingobacterium siyangense sp. nov., isolated from farm soil.

The taxonomic position of a novel Gram-negative strain, designated SY1(T), isolated from a farm-soil sample obtained from Jiangsu Province, PR China, was characterized by using a polyphasic approach. The cells were non-motile, non-spore-forming rods. The organism grew optimally at 30-37 degrees C and at pH 6.

Pseudomonas duriflava sp. nov., isolated from a desert soil.

A Gram-negative, rod-shaped, non-motile, non-spore-forming bacterium, designated strain HR2(T), was isolated from a soil sample from the Taklimaken Desert in Xinjiang Province, China. Strain HR2(T) grew optimally at pH 7.0-8.

Flavobacterium anhuiense sp. nov., isolated from field soil.

A novel strain, D3T, isolated from a field-soil sample obtained from Anhui Province, PR China, was characterized taxonomically by using a polyphasic approach. The cells were Gram-negative, yellow-pigmented rods devoid of flagella, but showing gliding motility. The organism was able to grow at 5-37 degrees C and at pH 4.