Phytochrome family mainly senses red and far-red light to regulate a range of developmental processes throughout the life cycle of plants. Rice phytochrome gene family is composed of three members known as PHYA, PHYB ...Phytochrome family mainly senses red and far-red light to regulate a range of developmental processes throughout the life cycle of plants. Rice phytochrome gene family is composed of three members known as PHYA, PHYB and PHYC. It has been elucidated that individual phytochromes display both unique and overlapping roles in rice photomorphogenesis by characterization of all rice phytochrome mutants including single mutants, all combinations of double mutants as well as triple mutants. Based on the published data and authors’ ongoing studies, current knowledge of rice phytochrome functions in regulating seedling de-etiolation, root gravitropic response and elongation, plant architecture, flowering time and fertility is summarized. Additionally, the important issues in the field of rice phytochromes are proposed.展开更多
The purpose of this study was to evaluate the effect and the potential mechanism of administering a pGRF gene plasmid on the growth and immunological function of weanling piglets subjected to immune-stress.Eighteen we...The purpose of this study was to evaluate the effect and the potential mechanism of administering a pGRF gene plasmid on the growth and immunological function of weanling piglets subjected to immune-stress.Eighteen weanling(Duroc×Landrace×Large White) piglets aged 35 d±2 d and initial BW of 7.86 kg±0.59 kg were randomly assigned to three treatments according to gender and BW by using a single factor design.The three treatments were injections of a pGRF gene plasmid,pGRF gene plasmid followed by challenge with lipopolysaccharide(LPS),and LPS to piglets not receiving the plasmid.Each treatment group consisted of six piglets.The results were as follows:piglets in the pGRF gene plasmid plus LPS treatment had a better growth performance than those only receiving LPS(P【0.05), and F/G of piglets in the pGRF gene plasmid plus LPS group were very slightly lower(P】0.05) than those in the LPS group;serum levels of IGF-1 in the pGRF gene plasmid plus LPS group were significantly higher than those in the LPS group(P【0.05 or P【0.01);serum levels of IgG in the pGRF gene plasmid plus LPS group were higher than those in the LPS group(P【0.05);serum levels of IL-1 and IL-6 in the pGRF gene plasmid plus LPS group were significantly lower than those in the LPS group(P【0.05 or P【0.01).展开更多
基金supported by the grants from the Chinese National Natural Science Foundations (Grant Nos. 30870192 and 30971744)the National Major Science and Technology Project to Create New Crop Varieties Using Gene Transfer Technical (Grant No. 2009ZX08001-029B)the Open Research Program from the Key Laboratory of Crop Biology, China (Grant No. 2009KF04)
文摘Phytochrome family mainly senses red and far-red light to regulate a range of developmental processes throughout the life cycle of plants. Rice phytochrome gene family is composed of three members known as PHYA, PHYB and PHYC. It has been elucidated that individual phytochromes display both unique and overlapping roles in rice photomorphogenesis by characterization of all rice phytochrome mutants including single mutants, all combinations of double mutants as well as triple mutants. Based on the published data and authors’ ongoing studies, current knowledge of rice phytochrome functions in regulating seedling de-etiolation, root gravitropic response and elongation, plant architecture, flowering time and fertility is summarized. Additionally, the important issues in the field of rice phytochromes are proposed.
文摘The purpose of this study was to evaluate the effect and the potential mechanism of administering a pGRF gene plasmid on the growth and immunological function of weanling piglets subjected to immune-stress.Eighteen weanling(Duroc×Landrace×Large White) piglets aged 35 d±2 d and initial BW of 7.86 kg±0.59 kg were randomly assigned to three treatments according to gender and BW by using a single factor design.The three treatments were injections of a pGRF gene plasmid,pGRF gene plasmid followed by challenge with lipopolysaccharide(LPS),and LPS to piglets not receiving the plasmid.Each treatment group consisted of six piglets.The results were as follows:piglets in the pGRF gene plasmid plus LPS treatment had a better growth performance than those only receiving LPS(P【0.05), and F/G of piglets in the pGRF gene plasmid plus LPS group were very slightly lower(P】0.05) than those in the LPS group;serum levels of IGF-1 in the pGRF gene plasmid plus LPS group were significantly higher than those in the LPS group(P【0.05 or P【0.01);serum levels of IgG in the pGRF gene plasmid plus LPS group were higher than those in the LPS group(P【0.05);serum levels of IL-1 and IL-6 in the pGRF gene plasmid plus LPS group were significantly lower than those in the LPS group(P【0.05 or P【0.01).
