Frontiers of Biology in China

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Cloning and expression of a luxRhomologue from Xanthomonas oryzae pv. oryzae
Frontiers of Biology in China - Tập 1 - Trang 127-130 - 2006
Bin Liang, Bin Guo, Chen Yang, Xinjun Zhang, Luyuan Dai, Tengqiong Yu, Daleng Shen
LuxR homologues are the main components of LuxR/LuxI circuit in Quorum Sensing (QS) of Gram-negative bacteria. A luxR homologue, designated as xooR, was cloned from X. oryzae pv. oryzae. The xooR gene is a transcription factor with 765 bp in length, and encodes a 254-amino acid putative protein with a molecular weight and an isoelectric point of 28.3 ku and 8.72 respectively. Amino acids 15 to 17...... hiện toàn bộ
Advances in medical decision support systems for diagnosis of acute graft-versus-host disease: molecular and computational intelligence joint approaches
Frontiers of Biology in China - Tập 6 - Trang 263-273 - 2011
Maurizio Fiasché, Maria Cuzzola, Giuseppe Irrera, Pasquale Iacopino, Francesco Carlo Morabito
Acute graft-versus-host disease (aGVHD) is a serious systemic complication of allogeneic hematopoietic stem cell transplantation (HSCT) causing considerable morbidity and mortality. Acute GVHD occurs when alloreactive donor-derived T cells recognize host-recipient antigens as foreign. These trigger a complex multiphase process that ultimately results in apoptotic injury in target organs. The early...... hiện toàn bộ
Genetic diversity of six populations of Atractomorpha sinensis and Atractomorpha peregrina in Shanxi Province, China
Frontiers of Biology in China - Tập 2 - Trang 235-241 - 2007
Fuping Lu, Cuilan Li, Yihao Duan, Yaping Guo, Enbo Ma
Ten enzymes (AAT, CK, G3PDH, HEX, IDH, LDH, MDH, ME, PGI, PGM) were examined using horizontal starch gel electrophoresis to estimate the levels of genetic variation within and among six natural populations of two grasshopper species Atractomorpha sinensis and A. peregrina from Shanxi, China. The collecting sites were geographically distant from each other from south to north: Quwo district, Linfen...... hiện toàn bộ
Comprehensive evaluation of multiple cropping systems on upland red soil
Frontiers of Biology in China - Tập 3 - Trang 344-350 - 2008
Guoqin Huang, Xiuying Liu, Longwang Liu, Fang Ye, Mingling Zhang, Yanhong Shu
According to the principles and methods of ecology and system engineering, we set up an evaluation indicator system for multi-component and multiple cropping systems, evaluated the comprehensive benefits of multi-component and multiple cropping systems using grey relation clustering analysis and screened out the optimized model based on research done in the upland red soil in Jiangxi Agricultural ...... hiện toàn bộ
3C-based methods to detect long-range chromatin interactions
Frontiers of Biology in China - Tập 6 - Trang 76-81 - 2011
Gang Wei, Keji Zhao
Transcriptional regulatory regions are often located several thousand bases from the gene that they control. To function, the chromatin strand forms loops to juxtapose distal regions with the promoter. These long-range chromatin interactions have profound influences on the regulation of gene expression and mapping these interactions is currently a subject of intensive investigation. Chromosome con...... hiện toàn bộ
Recovering context-specific gene network modules from expression data: A brief review
Frontiers of Biology in China - Tập 4 - Trang 414-418 - 2009
Hui Yu, Yuan-Yuan Li
With the popularization of microarray experiments in biomedical laboratories, how to make contextspecific knowledge discovery from expression data becomes a hot topic. While the static “reference networks” for key model organisms are nearly at hand, the endeavors to recover context-specific network modules are still at the beginning. Currently, this is achieved through filtering existing edges of ...... hiện toàn bộ
Temporal-spatial variation and the influence factors of precipitation in Sichuan Province, China
Frontiers of Biology in China - Tập 3 - Trang 236-240 - 2008
Ruimin Liu, Zhenyao Shen
Precipitation is a key factor in the water cycle. At the same time, precipitation is the focus of study in meteorology and climatology, ecological environmental assessment, non-point source pollution and so on. Understanding the temporal-spatial variation and the corresponding factors of precipitation has become the object of hydrology and environmentology. Based on the annual precipitation data, ...... hiện toàn bộ
Identification of superoxide dismutase isoenzymes in tobacco pollen
Frontiers of Biology in China - Tập 4 - Trang 442-445 - 2009
Jing Wang, Xuequn Liu, Guanghui Yu
We investigated the possible existence of superoxide dismutase (SOD; EC 1.15.1.1) isoenzymes in the pollen of Nicotiana tabacum (Petit Havana SR-1 cultivar). To detect SOD activity, crude extracts from tobacco pollen were subjected to native polyacrylamide gel electrophoresis followed by staining with nitroblue tetrazolium (NBT). The presence of six SOD isoenzymes was detected in tobacco pollen. T...... hiện toàn bộ
Spatial variability of soil fertility factors in the Xiangcheng tobacco planting region, China
Frontiers of Biology in China - Tập 4 - Trang 350-357 - 2009
Haisheng Chen, Zili Shen, Guoshun Liu, Zhengxian Tong
It is essential to understand the spatial variability of soil properties in tobacco planting regions, so that the right decision can be made as to how many fertilizer rates are likely to be appropriated for the highquality tobacco production. A total of 159 soil samples were taken from the surface soil (0-20 cm) in the Xiangcheng tobacco planting fields, Henan Province, in April 2002 to examine th...... hiện toàn bộ
Home ranges and habitat vegetation characters in breeding season of Narcissus Flycatcher and Yellow-rumped Flycatcher
Frontiers of Biology in China - Tập 2 Số 3 - Trang 345-350 - 2007
Ning Wang, Yanyun Zhang, Guangmei Zheng
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