Articles with the keyword: 
Arsenic and Paddy Rice: A Neglected Cancer Risk?
sea-maid submitted, created time 5 months 3 weeks (www.sciencemag.org)
Can eating rice increase the risk of cancer? That question arises from three sets of findings that report elevated arsenic levels in rice and products such as rice bran and rice crackers. 
A Transporter Regulating Silicon Distribution in Rice Shoots
kavin submitted, created time 7 months 5 days (www.plantcell.org)
Rice (Oryza sativa) accumulates very high concentrations of silicon (Si) in the shoots, and the deposition of Si as amorphous silica helps plants to overcome biotic and abiotic stresses. In the paper, the authors describe a transporter, Lsi6, which is involved in the distribution of Si in the shoots. The results indicate that Lsi6 is a transporter responsible for the transport of Si out of the xylem and subsequently affects the distribution of Si in the leaf.
kavin submitted, created time 7 months 1 week (www.ncbi.nlm.nih.gov)
As we know, RING finger proteins comprise a large family and play key roles in regulating growth/developmental processes, hormone signaling and responses to biotic and abiotic stresses in plants. In this paper, the authors tell us that OsBIRF1 has pleiotropic effects on growth and defense response against multiple abiotic and biotic stresses.
OsDREB1F gene increases salt, drought, and low temperature tolerance in both Arabidopsis and rice
kavin submitted, created time 7 months 3 weeks (www.ncbi.nlm.nih.gov)
In this study, a novel rice DREB transcription factor, OsDREB1F, was cloned and characterised via subtractive suppression hybridisation (SSH) from upland rice. The further characterisation of OsDREB1F-overexpressing Arabidopsis showed that, besides activating the expression of COR genes which contain DRE/CRT element in their upstream promoter regions, the expression of rd29B and RAB18 genes were also activated, suggested that OsDREB1F may also participate in ABA-dependent pathways.
kavin submitted, created time 8 months 1 week (sciencenow.sciencemag.org)
Baby rice, the bland porridge sold in supermarkets for weaning infants, can contain potentially dangerous levels of arsenic, according to new research done in the United Kingdom. The discovery calls for more attention to food-production sources, the authors say, but experts are divided on the value of the study. Some thinks it should highlight the need for the European Union and the United States to restrict arsenic in food as well as water. The other advise that it should be careful before telling people to throw their rice out.
davidd submitted, created time 9 months 1 week (www.pnas.org)
Small RNAs (21–24 nt) are involved in gene regulation through translation inhibition, mRNA cleavage, or directing chromatin modifications. At least five classes of these small regulatory RNAs (21–24 nt) have been characterized. miRNA and siRNA is reported frquently. However, the natural antisense miRNAs (nat-miRNAs) have not been reported in any system.
Eric wu submitted, created time 1 year 1 month (sciencenow.sciencemag.org)
In colonial America, slaves from west Africa made many a plantation owner rich by growing a particular high-quality variety of rice. Now, genetic research suggests the slaves not only supplied the labor and the agricultural skills they'd gained in their home countries but also may have brought the valuable crop with them.
Genotypic Difference in Silicon Uptake and Expression of Silicon Transporter Genes in Rice
yangjane submitted, created time 1 year 2 months (www.plantphysiol.org)
Rice (Oryza sativa) is a highly silicon (Si)-accumulating species that shows genotypic differences in Si accumulation. We investigated the physiological and molecular mechanisms involved in the genotypic difference in Si uptake between the japonica var. Nipponbare and the indica var. Kasalath. Both the Si concentration in the shoot and the Si uptake per root dry weight were higher in Nipponbare than in Kasalath grown in either soil or nutrient solution.
james submitted, created time 1 year 3 months (www.pnas.org)
Freshwater is a limited and dwindling global resource; therefore, efficient water use is required for food crops that have high water demands, such as rice, or for the production of sustainable energy biomass. We show here that expression of the Arabidopsis HARDY (HRD) gene in rice improves water use efficiency, the ratio of biomass produced to the water used, by enhancing photosynthetic assimilation and reducing transpiration.
UD leads $5.3-million research project on rice epigenetics
bianjie submitted, created time 1 year 3 months (www.udel.edu)
Using a novel "deep sequencing" technology that can in one fell swoop decode 50 million sequences representing well over a billion bases of DNA, a research team led by University of Delaware scientists is working to unmask where, why and how certain genes are switched on or off in rice -- a crop vital to the world's food supply.
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