Yellow-seeded (YS) rapeseed varieties have attracted considerable interests from cultivators because of their thin seed coat and high seed oil content. However, compared with black-seeded (BS) ...rapeseed, little is known about the response of YS rapeseed to abiotic stresses. In this study, we characterized the cellular structures of YS varieties and BS varieties and the physiological parameters of the YS and BS seedlings subjected to high-salt and/or high-cadmium conditions. We observed larger and denser (in arrangement) oilbodies in YS than in BS varieties. The BS variety seed coat was much thicker than that of the YS variety because of the existence of a palisade layer where pigments are deposited. Either at the eighth day or 1 month after sowing, YS seedlings showed higher sensitivity to NaCl and/or CdCl₂stress than BS seedlings, as reflected by the length of roots, biomass, and a variety of physiological parameters, including MDA, chlorophyll content, and antioxidant activities. Our results suggested that the more vigorous growth of BS seedlings is likely due to the higher flavonoid content in their vegetative tissues, and the poor performance of YS seedlings under stress treatment (especially with NaCl) could be attributed to its relatively low flavonoid content. Our findings raise some points that need further investigation to obtain an in-depth understanding of the molecular mechanisms involved.
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EMUNI, FIS, FZAB, GEOZS, GIS, IJS, IMTLJ, KILJ, KISLJ, MFDPS, NLZOH, NUK, OILJ, PNG, SAZU, SBCE, SBJE, SBMB, SBNM, UKNU, UL, UM, UPUK, VKSCE, ZAGLJ
A novel 1.54 μm laser absorbent of Er
2
O
2
S was prepared by solid state flux method. The effects of different calcining temperatures and preservation time on the synthesis and reflecting property ...of Er
2
O
2
S were investigated. The mechanism of fluxing agent was assumed and proved. The phase composition, morphology, and reflectivity of the powders were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), and ultraviolet visible spectrophotometer (UV-3600PC). The results showed that pure phase of Er
2
O
2
S could be obtained with Na
2
CO
3
as fluxing agent at 800–1200 °C, too high temperature and too long preservation time were bad for synthesizing Er
2
O
2
S. Na
2
CO
3
played an important role during the reaction, the elemental sulfur in Er
2
O
2
S came from Na
2
S
2
O
3
indeed. Different calcination conditions had a great impact on particle morphology, which had influence on the reflectivity of the products. The reflectivity was the lowest (0.39 %) when the calcining temperature was 1200 °C.
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EMUNI, FIS, FZAB, GEOZS, GIS, IJS, IMTLJ, KILJ, KISLJ, MFDPS, NLZOH, NUK, OILJ, PNG, SAZU, SBCE, SBJE, SBMB, SBNM, UKNU, UL, UM, UPUK, VKSCE, ZAGLJ
Eu3+ ions activated BaLaMgSbO6 phosphors were successfully synthesized by the solid-state reaction method using NH4Cl as the flux. The BaCl2 was selected to substitute BaCO3 as the starting material ...to attest that NH4Cl not only reacted with BaCO3 but also reacted with other starting materials. The analysis of TG/DSC was used to probe the role of NH4Cl flux in the process of synthesizing BaLaMgSbO6 powders. The crystal structure was investigated by XRD and Rietveld refinement, and the morphology by SEM. The phosphors had monoclinic double perovskite structure with the space group P21, as well as the rock-salt ordering of B-site. The luminescence properties, including the photoluminescence excitation and emission spectra, and the color coordinates were investigated. Also, the relationship between the crystalline size and the emission intensity were discussed. With increasing the calcination temperature, both the crystalline size and the emission intensity monotonously increased. The relative intensity ratio of red/orange emission was used to measure the degree of distortion from the inversion symmetry of the local environment of the Eu3+ ions in BaLaMgSbO6.
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EMUNI, FIS, FZAB, GEOZS, GIS, IJS, IMTLJ, KILJ, KISLJ, MFDPS, NLZOH, NUK, OILJ, PNG, SAZU, SBCE, SBJE, SBMB, SBNM, UKNU, UL, UM, UPUK, VKSCE, ZAGLJ
Eu super(3+) ions activated BaLaMgSbO sub(6) phosphors were successfully synthesized by the solid-state reaction method using NH sub(4)Cl as the flux. The BaCl sub(2) was selected to substitute BaCO ...sub(3) as the starting material to attest that NH sub(4)Cl not only reacted with BaCO sub(3) but also reacted with other starting materials. The analysis of TG/DSC was used to probe the role of NH sub(4)Cl flux in the process of synthesizing BaLaMgSbO sub(6) powders. The crystal structure was investigated by XRD and Rietveld refinement, and the morphology by SEM. The phosphors had monoclinic double perovskite structure with the space group P21, as well as the rock-salt ordering of B-site. The luminescence properties, including the photoluminescence excitation and emission spectra, and the color coordinates were investigated. Also, the relationship between the crystalline size and the emission intensity were discussed. With increasing the calcination temperature, both the crystalline size and the emission intensity monotonously increased. The relative intensity ratio of red/orange emission was used to measure the degree of distortion from the inversion symmetry of the local environment of the Eu super(3+) ions in BaLaMgSbO sub(6).
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EMUNI, FIS, FZAB, GEOZS, GIS, IJS, IMTLJ, KILJ, KISLJ, MFDPS, NLZOH, NUK, OILJ, PNG, SAZU, SBCE, SBJE, SBMB, SBNM, UKNU, UL, UM, UPUK, VKSCE, ZAGLJ
Eu
3+
ions activated BaLaMgSbO
6
phosphors were successfully synthesized by the solid-state reaction method using NH
4
Cl as the flux. The BaCl
2
was selected to substitute BaCO
3
as the starting ...material to attest that NH
4
Cl not only reacted with BaCO
3
but also reacted with other starting materials. The analysis of TG/DSC was used to probe the role of NH
4
Cl flux in the process of synthesizing BaLaMgSbO
6
powders. The crystal structure was investigated by XRD and Rietveld refinement, and the morphology by SEM. The phosphors had monoclinic double perovskite structure with the space group P21, as well as the rock-salt ordering of B-site. The luminescence properties, including the photoluminescence excitation and emission spectra, and the color coordinates were investigated. Also, the relationship between the crystalline size and the emission intensity were discussed. With increasing the calcination temperature, both the crystalline size and the emission intensity monotonously increased. The relative intensity ratio of red/orange emission was used to measure the degree of distortion from the inversion symmetry of the local environment of the Eu
3+
ions in BaLaMgSbO
6
.
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EMUNI, FIS, FZAB, GEOZS, GIS, IJS, IMTLJ, KILJ, KISLJ, MFDPS, NLZOH, NUK, OILJ, PNG, SAZU, SBCE, SBJE, SBMB, SBNM, UKNU, UL, UM, UPUK, VKSCE, ZAGLJ
Deleted in breast cancer 1 (DBC1, KIAA1967, p30 DBC) is a novel protein that has been recently shown to bind and regulate SIRT1. Loss of function of DBC1 increased SIRT1 deacetylase activity, which ...promotes “browning” of WAT by deacetylating peroxisome proliferator-activated receptor (PPARγ) on Lys268 and Lys293. In the present study, we have cloned and characterized the bovine DBC1 gene. Two transcript variants of bovine DBC1 were identified, designated DBC1-A and DBC1-B, respectively, which were both located in nucleus. Protein sequence analysis showed that DBC1-A was well conserved across species. Expression analysis of DBC1 in seven different tissues of calves and bulls by RT-PCR indicated that the two transcripts were ubiquitously expressed. However, the relatively level of DBC1-A was higher when compared to DBC1-B in all examined tissues. Surprisingly, the expression of DBC1-A was extraordinary high in calves adipose tissue, which implicated its potential key role in regulating calve adipocyte development. These findings provide new insight into our understanding of the biochemical characteristics and physiological role of bovine DBC1.
•We have cloned and identified two transcript variants of bovine DBC1.•DBC1-A and DBC1-B are both located in nucleus.•The expression of DBC1-A was extraordinary high in calves adipose tissue.•DBC1-A has a potential role in regulating calve adipocyte development.
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GEOZS, IJS, IMTLJ, KILJ, KISLJ, NUK, OILJ, PNG, SAZU, SBCE, SBJE, UL, UM, UPCLJ, UPUK
1064 nm laser stealth absorbent Sm2O2S was prepared by solid state flux method. The effects of doping Er3+ and Tm3+ on the powder's phase compositions and reflecting property were investigated. The ...phase composition, morphology and reflectivity of powders were characterized by X-ray diffraction, scanning electron microscopy and ultraviolet visible spectrophotometer (UV-3600PC). The results exhibited that doping Er3+ and Tm3+ cause no significant changes on crystal structure. However, the morphology of powders changed a lot after doping Er3+/Tm3+, which influenced on the reflecting property. Because of the characteristic absorption of Er3+ and Tm3+, the reflectivity of Sm2O2S powders decreased in different degrees. The doping amount of Er3+ was 15 mol%, the lowest reflectivity 0.7450 % was obtained. The optimized doping amount of Tm3+ was 10 mol% and the reflectivity was 0.7403 %.
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EMUNI, FIS, FZAB, GEOZS, GIS, IJS, IMTLJ, KILJ, KISLJ, MFDPS, NLZOH, NUK, OILJ, PNG, SAZU, SBCE, SBJE, SBMB, SBNM, UKNU, UL, UM, UPUK, VKSCE, ZAGLJ
1064 nm laser stealth absorbent Sm sub(2)O sub(2)S was prepared by solid state flux method. The effects of doping Er super(3+) and Tm super(3+) on the powder's phase compositions and reflecting ...property were investigated. The phase composition, morphology and reflectivity of powders were characterized by X-ray diffraction, scanning electron microscopy and ultraviolet visible spectrophotometer (UV-3600PC). The results exhibited that doping Er super(3+) and Tm super(3+) cause no significant changes on crystal structure. However, the morphology of powders changed a lot after doping Er super(3+)/Tm super(3+), which influenced on the reflecting property. Because of the characteristic absorption of Er super(3+) and Tm super(3+), the reflectivity of Sm sub(2)O sub(2)S powders decreased in different degrees. The doping amount of Er super(3+) was 15 mol%, the lowest reflectivity 0.7450 % was obtained. The optimized doping amount of Tm super(3+) was 10 mol% and the reflectivity was 0.7403 %.
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EMUNI, FIS, FZAB, GEOZS, GIS, IJS, IMTLJ, KILJ, KISLJ, MFDPS, NLZOH, NUK, OILJ, PNG, SAZU, SBCE, SBJE, SBMB, SBNM, UKNU, UL, UM, UPUK, VKSCE, ZAGLJ
An protease from
Actinidia arguta
for improving meat tenderness was purified, characterized from wild
A. arguta
fruit by ammonium sulfate precipitation, Sephdex G-25 gel filtration chromatography, ...and DEAE Sepharose Fast Flow ion exchange chromatography, and its activity was investigated. The purified protease was subjected to sodium dodecyl sulfate polyacrylamide gel electrophoresis to obtain a single band of protease. The protease was purified successfully, and found to have a molecular weight of 23.8 kDa (mass spectrometry). The specific activity of the purified protease reached 53,428 U/mg with a 25.5-fold purification factor and 9% activity recovery. Based on N-terminal sequencing results, the
A. arguta
protease was derived from the class of actinidia proteases that have an N-terminal sequence of VLPDY VDWRS AGAVV. The protease was effective for tenderizing beef and decomposing actomyosin, suggesting the potential application for improving meat tenderness.
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EMUNI, FIS, FZAB, GEOZS, GIS, IJS, IMTLJ, KILJ, KISLJ, MFDPS, NLZOH, NUK, OILJ, PNG, SAZU, SBCE, SBJE, SBMB, SBNM, UKNU, UL, UM, UPUK, VKSCE, ZAGLJ
Increasing attention has been focused on microwave absorption (MA) performance in the Ku band (12.4–18.0 GHz) due to the rapid development of radar, military aircraft and satellite communications. In ...this work, 2D heterostructure MoS 2 /graphene composites were proven to be promising full Ku band MA materials due to their superb characteristics of high dielectric loss, low density, large surface area and good thermal stability. By a simple one step solvothermal method, MoS 2 /graphene composites were successfully obtained, and the matched 2D structure between MoS 2 and graphene could generate synergistic effects and maximize the MA properties. Only with 30 wt% of the as-prepared MoS 2 /graphene composites, excellent MA properties in wide frequency bands were obtained. An optimal reflection loss (RL) value of −41.9 dB was obtained at 16.1 GHz with a thickness of 2.4 mm and the RL values exceeding −10 dB were achieved in the whole Ku band (12.2–18.0 GHz) with a thickness of 2.6–3.0 mm.
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IJS, KILJ, NUK, UL, UM, UPUK
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