A series of thermal-structural-gneiss domes (briefly TSG domes) are developed in the Chinese Altaides. Sericite-chlorite zone, biotite zone, garnet zone, staurolite zone, kyanite (andalusite)zone, sillimanite- cordier...A series of thermal-structural-gneiss domes (briefly TSG domes) are developed in the Chinese Altaides. Sericite-chlorite zone, biotite zone, garnet zone, staurolite zone, kyanite (andalusite)zone, sillimanite- cordierite (sillimanite-garnet)zone, migmatite zone and migmatic granite- gneiss field are developed from the low-grade metamorphic area to the centre of the TSG domes. The succession of the formation and evolution of the progressive metamorphic zone, migmatite zone and migmatic granite-gneiss corresponds to the spatial sequence from the outer part to the centre of the TSG domes. The peak temperature of the metamorphism and granitization increases progressively from 400℃ to 800℃ while the pressure decreases progressively from 1.05 GPa to 0.10 GPa from the biotite zone to the migmatic granite-gneiss field. The metamorphism of the erogenic belt may be described by the pressure-temperature-space-time model (PTst). In the main episode of orogeny, the deep heat flow and structural flow upsurged along a series of the centres of the regional thermodynamic anomalies, giving rise to the progressive metamorphism, granitization, and the differential uplift and the formation of TSG domes.展开更多
马铃薯是世界上主要粮食作物之一,其块茎中的贮藏淀粉是马铃薯的主要利用产物。PROTEIN TARGETING TO STARCH 1(PTST1)基因在直链淀粉合成中具有重要作用。然而,它在马铃薯中的功能尚不清楚。本文以马铃薯PTST1为目的基因,从基因特征、...马铃薯是世界上主要粮食作物之一,其块茎中的贮藏淀粉是马铃薯的主要利用产物。PROTEIN TARGETING TO STARCH 1(PTST1)基因在直链淀粉合成中具有重要作用。然而,它在马铃薯中的功能尚不清楚。本文以马铃薯PTST1为目的基因,从基因特征、表达模式及与GBSSI的互作关系方面进行了研究。PTST1蛋白由252个氨基酸残基组成,羧基端含有碳水化合物结合结构域。PTST1在多个组织的表达均低于GBSSI,在块茎发育时期,其表达没有明显的升高趋势。GBSSI在块茎中高表达,且随着块茎发育,其表达升高,说明PTST1与GBSSI的表达模式不同。酵母双杂交实验、烟草荧光素酶互补实验和双分子荧光互补实验证明PTST1与GBSSI蛋白互作,且互作发生于叶绿体基质。上述结果表明PTST1可能与叶片和块茎中直链淀粉的合成有密切的关系。本研究为调控马铃薯直链淀粉合成提供了新的基因资源。展开更多
The concept of paraunitary two-scale similarity transform （PTST） is introduced. We discuss the property of PTST, and prove that PTST preserves the orthogonal, approximation order and smoothness of the given orthogon...The concept of paraunitary two-scale similarity transform （PTST） is introduced. We discuss the property of PTST, and prove that PTST preserves the orthogonal, approximation order and smoothness of the given orthogonal multiscaling functions. What is more, by applying PTST, we present an algorithm of constructing high order balanced multiscaling functions by balancing the already existing orthogonal nonbalanced multiscaling functions. The corresponding transform matrix is given explicitly. In addition, we also investigate the symmetry of the balanced multiscaling functions. Finally, construction examples are given.展开更多
基金Project funded by the National Natural Science Foundation of China, No.48900021
文摘A series of thermal-structural-gneiss domes (briefly TSG domes) are developed in the Chinese Altaides. Sericite-chlorite zone, biotite zone, garnet zone, staurolite zone, kyanite (andalusite)zone, sillimanite- cordierite (sillimanite-garnet)zone, migmatite zone and migmatic granite- gneiss field are developed from the low-grade metamorphic area to the centre of the TSG domes. The succession of the formation and evolution of the progressive metamorphic zone, migmatite zone and migmatic granite-gneiss corresponds to the spatial sequence from the outer part to the centre of the TSG domes. The peak temperature of the metamorphism and granitization increases progressively from 400℃ to 800℃ while the pressure decreases progressively from 1.05 GPa to 0.10 GPa from the biotite zone to the migmatic granite-gneiss field. The metamorphism of the erogenic belt may be described by the pressure-temperature-space-time model (PTst). In the main episode of orogeny, the deep heat flow and structural flow upsurged along a series of the centres of the regional thermodynamic anomalies, giving rise to the progressive metamorphism, granitization, and the differential uplift and the formation of TSG domes.
文摘马铃薯是世界上主要粮食作物之一,其块茎中的贮藏淀粉是马铃薯的主要利用产物。PROTEIN TARGETING TO STARCH 1(PTST1)基因在直链淀粉合成中具有重要作用。然而,它在马铃薯中的功能尚不清楚。本文以马铃薯PTST1为目的基因,从基因特征、表达模式及与GBSSI的互作关系方面进行了研究。PTST1蛋白由252个氨基酸残基组成,羧基端含有碳水化合物结合结构域。PTST1在多个组织的表达均低于GBSSI,在块茎发育时期,其表达没有明显的升高趋势。GBSSI在块茎中高表达,且随着块茎发育,其表达升高,说明PTST1与GBSSI的表达模式不同。酵母双杂交实验、烟草荧光素酶互补实验和双分子荧光互补实验证明PTST1与GBSSI蛋白互作,且互作发生于叶绿体基质。上述结果表明PTST1可能与叶片和块茎中直链淀粉的合成有密切的关系。本研究为调控马铃薯直链淀粉合成提供了新的基因资源。
基金supported by the National Natural Science Foundation of China(Grant Nos.90104004 and 10471002)the 973 Project of China(Grant Nos.G1999075105)+1 种基金the Natural Science Foundation of Guangdong Province(Grant Nos.032038,05008289)the Doctoral Foundation of Guangdong Province(Grant No.04300917).
文摘The concept of paraunitary two-scale similarity transform （PTST） is introduced. We discuss the property of PTST, and prove that PTST preserves the orthogonal, approximation order and smoothness of the given orthogonal multiscaling functions. What is more, by applying PTST, we present an algorithm of constructing high order balanced multiscaling functions by balancing the already existing orthogonal nonbalanced multiscaling functions. The corresponding transform matrix is given explicitly. In addition, we also investigate the symmetry of the balanced multiscaling functions. Finally, construction examples are given.
