Evaluation of Suitable Reference Genes for Quantitative Real-Time PCR in Various Tissues of .

L. is an economically valuable plant with tolerance to drought and salinity. Its leaves are utilized in tea production and pharmaceuticals, while the stem bark serves as a high-quality fiber material.

Endogenous and Exogenous Calcium Involved in the Betulin Production from Submerged Culture of Phellinus linteus Induced by Hydrogen Sulfide.

Using pharmacological and biochemical approaches, Ca(2+) involved in the betulin production in mycelia of Phellinus linteus induced by hydrogen sulfide (H2S) were investigated. The results showed that 2 mM H2S donor NaHS or 10 mM CaCl2 was found to enhance the betulin content in the mycelia of Phellinus to the maximum, which were 112.43 and 93.

De novo transcriptome analysis of a medicinal fungi and identification of SSR markers.

The aim of this study was to facilitate gene discovery for functional genome studies and to identify simple sequence repeat (SSR) markers for molecular-assisted selection in . The transcriptome of was sequenced using а high-throughput RNA sequencing system - the Illumina Hiseq 2000. A total of 16,383,818 clean sequencing reads, 35,532 contigs and 25,811 unigenes were postulated.

Prevalence of visual impairment among adults in China: the Beijing Eye Study.

Purpose: To estimate the prevalence and distribution of blindness and low vision in Northern China.

Design: Population-based cohort study.

Methods: The Beijing Eye Study included 4438 subjects with an age of 40+ years.

Frequency of under-corrected refractive errors in elderly Chinese in Beijing.

Purpose: The aim of the study was to evaluate the prevalence of under-corrected refractive error among elderly Chinese in the Beijing area.

Methods: The population-based, cross-sectional, cohort study comprised 4,439 subjects out of 5,324 subjects asked to participate (response rate 83.4%) with an age of 40+ years.

QTL for yield and its components responded to elevated CO2 in rice (Oryza sativa L.).

FACE (free air carbon dioxide enrichment) technology may provide a means by which the environment around growing plants can be modified to realistically simulate the concentration of atmospheric CO2 in the future. The plant growth and its yield of plant species can be enhanced under FACE. Identification of genomic regions influencing the response of yield and its components to elevated CO2 will be useful for understanding the genetics of active response to changed CO2 environment and developing higher yield cultivars, which will be adapted to future enriched atmospheric CO2 environment.

Refractive error in urban and rural adult Chinese in Beijing.

Purpose: To evaluate refractive error and its demographic associations in an urban and rural population in northern China.

Design: Epidemiological study.

Participants: The Beijing Eye Study is a population-based cohort study in northern China including 4439 subjects.

[The prevalence and its effective factors of primary angle-closure glaucoma in defined populations of rural and urban in Beijing].

Objective: To investigate the prevalence of primary angle-closure glaucoma (PACG) of urban and rural residents in Beijing, China. A quantitative comparison was made based on the data collected from this epidemiological survey. We also identify some of the most typical risk factors associated with PACG.