The Fe_(949.7)Cr_(18)Mn_(1.9)Mo_(7.4)W_(1.6)B_(15.2)C_(3.8)Si_(2) amorphous coating was deposited on T91 steel substrate by using the high-velocity oxygen fuel(HVOF)spray technique to enhance the corrosion resistance ...The Fe_(949.7)Cr_(18)Mn_(1.9)Mo_(7.4)W_(1.6)B_(15.2)C_(3.8)Si_(2) amorphous coating was deposited on T91 steel substrate by using the high-velocity oxygen fuel(HVOF)spray technique to enhance the corrosion resistance of T91 stainless steel in liquid lead-bismuth eutectic(LBE).The corrosion behavior of the T91 steel and coating exposed to oxygen-saturated LBE at 400℃ for 500 h was investigated.Results showed that the T91 substrate was severely corroded and covered by a homogeneously distributed dual-layer oxide on the interface contacted to LBE,consisting of an outer magnetite layer and an inner Fe-Cr spinel layer.Meanwhile,the amorphous coating with a high glass transition temperature(Tg=550℃)and crystallization temperature(T_(x)=600℃)exhibited dramatically enhanced thermal stability and corrosion resistance.No visible LBE penetration was observed,although small amounts of Fe_(3)O_(4),Cr_(2)O_(3),and PbO were found on the coating surface.In addition,the amorphicity and interface bonding of the coating layer remained unchanged after the LBE corrosion.The Fe-based amorphous coating can act as a stable barrier layer in liquid LBE and have great application potential for long-term service in LBE-cooled fast reactors.展开更多
Ustilaginoidea virens,which causes rice false smut(RFS),is one of the most detrimental rice fungal diseases and poses a severe threat to rice production and quality.Effectors in U.virens often act as a group of essent...Ustilaginoidea virens,which causes rice false smut(RFS),is one of the most detrimental rice fungal diseases and poses a severe threat to rice production and quality.Effectors in U.virens often act as a group of essential virulence factors that play crucial roles in the interaction between host and the pathogen.Thus,the functions of individual effectors in U.virens need to be further explored.Here,we found a small secreted hypersensitive response-inducing protein UVI_02019870 was highly conserved in fungi.Furthermore,we performed Y2H and BiFC assay to demonstrated UVI_02019870 interacted with OsCPL1,which was predicted as a chloroplast precursor to regulate chloroplast signaling pathways.Our data provide a theory for gaining an insight into the molecular mechanisms underlying the UVI_02019870 virulence function.展开更多
cDNA fragment of the gene (dehydration induced, di1) of wheat (Triticum aestivum. L) induced by 30% PEG-6000 (-1.13 MPa) treatment was isolated with mRNA differential display technique. Northern blot analysis showed t...cDNA fragment of the gene (dehydration induced, di1) of wheat (Triticum aestivum. L) induced by 30% PEG-6000 (-1.13 MPa) treatment was isolated with mRNA differential display technique. Northern blot analysis showed that the expression of di1 gene improved at 10 h reached the highest at 48 h under 30% PEG-6000 treatment, cDNA fragment of di1 gene has been cloned and sequenced (211 bp). DNA sequence analysis shows that there is no homologue in GenBank to di1 cDNA.展开更多
基金financially supported by the National Natural Science Foundation of China (Nos. 52061135207, 51871016, 51921001, 5197011039, 5197011018, and U20b200318)the China Nuclear Power Technology Research Institute Co., Ltd
文摘The Fe_(949.7)Cr_(18)Mn_(1.9)Mo_(7.4)W_(1.6)B_(15.2)C_(3.8)Si_(2) amorphous coating was deposited on T91 steel substrate by using the high-velocity oxygen fuel(HVOF)spray technique to enhance the corrosion resistance of T91 stainless steel in liquid lead-bismuth eutectic(LBE).The corrosion behavior of the T91 steel and coating exposed to oxygen-saturated LBE at 400℃ for 500 h was investigated.Results showed that the T91 substrate was severely corroded and covered by a homogeneously distributed dual-layer oxide on the interface contacted to LBE,consisting of an outer magnetite layer and an inner Fe-Cr spinel layer.Meanwhile,the amorphous coating with a high glass transition temperature(Tg=550℃)and crystallization temperature(T_(x)=600℃)exhibited dramatically enhanced thermal stability and corrosion resistance.No visible LBE penetration was observed,although small amounts of Fe_(3)O_(4),Cr_(2)O_(3),and PbO were found on the coating surface.In addition,the amorphicity and interface bonding of the coating layer remained unchanged after the LBE corrosion.The Fe-based amorphous coating can act as a stable barrier layer in liquid LBE and have great application potential for long-term service in LBE-cooled fast reactors.
基金This work is supported by the earmarked fund for China Agriculture Research System(CARS-01).
文摘Ustilaginoidea virens,which causes rice false smut(RFS),is one of the most detrimental rice fungal diseases and poses a severe threat to rice production and quality.Effectors in U.virens often act as a group of essential virulence factors that play crucial roles in the interaction between host and the pathogen.Thus,the functions of individual effectors in U.virens need to be further explored.Here,we found a small secreted hypersensitive response-inducing protein UVI_02019870 was highly conserved in fungi.Furthermore,we performed Y2H and BiFC assay to demonstrated UVI_02019870 interacted with OsCPL1,which was predicted as a chloroplast precursor to regulate chloroplast signaling pathways.Our data provide a theory for gaining an insight into the molecular mechanisms underlying the UVI_02019870 virulence function.
文摘cDNA fragment of the gene (dehydration induced, di1) of wheat (Triticum aestivum. L) induced by 30% PEG-6000 (-1.13 MPa) treatment was isolated with mRNA differential display technique. Northern blot analysis showed that the expression of di1 gene improved at 10 h reached the highest at 48 h under 30% PEG-6000 treatment, cDNA fragment of di1 gene has been cloned and sequenced (211 bp). DNA sequence analysis shows that there is no homologue in GenBank to di1 cDNA.
