| [surveillance on contamination of total aflatoxins in corn, peanut, rice, walnut and pine nut in several areas in china]. | to realize the contamination of total aflatoxins in corn, peanut, rice, walnut and pine nut in china, and provide the base data for establishing a china tolerance limit standard and an international control practice for total aflatoxins. | 2006 | 16620597 |
| completion of the sequence of rice gall dwarf virus from guangxi, china. | the complete nucleotide sequences of segments s2, s3, s5, and s8-s11 of a rice gall dwarf virus isolate from guangxi province, china, (rgdv-gx) were determined, completing the sequence of this isolate. the total genome (25,567nt) was similar in organization to a recently reported thailand isolate (rgdv-t). a previously unreported second segment-specific repeat of 7 or 8nt was detected close to the 3'-end of segments s3, s5, and s8. the 3'-utr of rgdv-gx s4 was 139nt shorter than that of rgdv-t; ... | 2008 | 18661096 |
| genetic structure of oryza rufipogon griff. in china. | oryza rufipogon griff. (common wild rice; cwr) is the ancestor of asian cultivated rice (oryza sativa l.). investigation of the genetic structure and diversity of cwr in china will provide information about the origin of cultivated rice and the grain quality and yield. in this study, we used 36 simple sequence repeat (ssr) markers to assay 889 accessions, which were highly representative of whole germplasm in china. the analysis revealed a hierarchical genetic structure within cwr. first, cwr ha ... | 2008 | 18827837 |
| contamination of aflatoxins in different kinds of foods in china. | to study the contamination of total aflatoxins (afs) in different kinds of foods including corn, peanut, rice, walnut, and pine nut in six provinces and two municipalities in china. | 2007 | 18348407 |
| microsatellite analysis of genetic diversity and population genetic structure of a wild rice (oryza rufipogon griff.) in china. | genetic diversity and population genetic structure of natural oryza rufipogon populations in china were studied based on ten microsatellite loci. for a total of 237 individuals of 12 populations collected from four regions, a moderate to high level of genetic diversity was observed at population levels with the number of alleles per locus ( a) ranging from 2 to 18 (average 10.6), and polymorphic loci ( p) from 40.0% to 100% (average 83.3%). the observed heterozygosity ( h(o)) varied from 0.163 t ... | 2003 | 12845446 |
| high levels of genetic differentiation of oryza officinalis wall. ex watt. from china. | in order to determine the population genetic structure of wild rice (oryza officinalis wall. ex watt.), an endangered tropical and subtropical species, allozyme diversity encoded by 24 loci was analyzed electrophoretically in 145 individuals of eight natural populations from hainan, guangxi, and yunnan provinces, china. a fairly high genetic differentiation (f(st) = 0.882 and mean i = 0.786) was found among the studied populations. our results suggest that restricted gene flow may play a signifi ... | 2001 | 11948221 |
| nutritional evaluation of women in urban areas in continental china. | in 1993-1995, a nutritional survey was conducted in china, in which 50 women each in three cities of beijing, shanghai and nanning (thus 150 in total) volunteered to offer 24-hr total food duplicates and peripheral blood samples. people daily took 1,776 kcal (7,431 kj) energy, 57 g protein, 75 g lipid, 218 g carbohydrate, 439 mg calcium, 24 mg iron, 3,398 mg sodium and 1,521 mg potassium. when compared with the recommended dietary allowance for chinese, intakes of energy, iron and possibly vitam ... | 1997 | 9241771 |
| background exposure of urban populations to lead and cadmium: comparison between china and japan. | to assess and compare the background exposure of the general population to lead (pb) and cadmium (cd) in china and in japan. | 1997 | 9138002 |
| the advantages of mosquito biocontrol by stocking edible fish in rice paddies. | edible fish stocked in rice fields at a density of 600-800 fry per mu (1 mu = 1/15 hectare) for 150-170 days may act as an effective mosquito biocontrol agent. common carp (cyprinus carpio), grass carp ctenopharyngodon idella) and tilopia spp. killed late stage larvae and pupae of anopheles sinensis and culex tritaeniorrhyncus in laboratory and field trials. stocking of fish in experimental rice fields decreased larval numbers significantly in comparison with control areas. expansion of fish sto ... | 1991 | 1818398 |
| [aflatoxins and primary liver cancer--a population based case-control study]. | a case-control study of primary liver cancer (plc) was conducted in 1989 at fusui county, guangxi province. there were 99 plc cases and 99 age-sex-residence matched controls. there were no difference of age, sex, race, cultural, level, marital status and annual income distribution (p > 0.05). the mean dietary afb1 intakes of cases and controls were 117.72 + 105.68 mg/d, the mean outputs of afm1 were 22.56 and 21.62 ng per morning urine respectively. the mean sera aflatoxin-albumin adducts in bot ... | 1992 | 1303345 |
| microvirga guangxiensis sp. nov., a novel alphaproteobacterium from soil, and emended description of the genus microvirga. | a gram-negative-staining bacterium, designated strain 25bt, was isolated from a soil sample from a rice field in guangxi province, china, and its taxonomic position was investigated by using a polyphasic approach. cells were rod-shaped, non-spore-forming, non-motile and strictly aerobic. strain 25bt grew optimally at 37 degrees c and ph 7.0. the predominant fatty acids of this soil isolate were c18:1omega7c, c19:0 cyclo omega8c and c16:0. phylogenetic analysis based on the almost-complete 16s rr ... | 2009 | 19567564 |
| the distribution and identification of brown planthopper resistance genes in rice. | a collection of 515 rice landraces originating from vietnam and china were screened for the reaction to brown planthopper (bph) infestation. most of the resistant landraces were indica types from vietnam and the guangxi province in china. an f(2) mapping population was created from the cross between a bph resistant vietnamese landrace yagyaw and the susceptible cultivar cpslo17. four quantitative trait loci (qtl) contributing to bph resistance were mapped on chromosomes 2, 4, 7 and 9, respective ... | 2009 | 19490167 |