The Adventures of Huckleberry Finn is Mark Twain's masterpiece,the one book from which,as Ernest Hemingway noted," All modern American literature comes ".It accounts the adventures of white Huck helping ...The Adventures of Huckleberry Finn is Mark Twain's masterpiece,the one book from which,as Ernest Hemingway noted," All modern American literature comes ".It accounts the adventures of white Huck helping black slave Jim escape and pursue freedom.Through their long journey along the Mississippi River,we can see panorama of America,such as its slavery,racial conflicts and integration,American Puritanism,and Westward Movement,etc.This thesis mainly deals with Americans'national traits reflected in The Adventures of Huckleberry Finn from the perspective of American developmental history and American culture.展开更多
Thousand Seed Weight （TSW） is one of the major yield components of rapeseed （Brassica napus L.）. Here reports an extra-large seed germplasm GM01 which was obtained through isolated microspore culture. Three-way cr...Thousand Seed Weight （TSW） is one of the major yield components of rapeseed （Brassica napus L.）. Here reports an extra-large seed germplasm GM01 which was obtained through isolated microspore culture. Three-way cross was made： H8--a Yunnan spring early-maturing rapeseed variety, ＂Legeney＂--a Canadian canola variety and ＂020010＂--a semi-winter late-maturing rapeseed variety. One hundred and forty eight doubled hyploid lines were obtained from the F~ plants of three-way cross through isolated mierospore culture. Among them, the TSW of GM01 amounted to 8.68 g and the TSW of 53 lines were above 5.0 g. The TSWs of GM01 were relatively stable among the multi-location field trials from 2007 to 2014 with variation being only 10%-15% among the locations and years. Compared with H8, GM01 had larger flowers, stigmas, siliques and seed diameters, but less branches, siliques per plant and seeds per silique.展开更多
As indoor horticulture gathers momentum,electric(also termed artificial)lighting systems with the ability to generate specific and tunable wavelengths have been developed and applied.While the effects of light quality...As indoor horticulture gathers momentum,electric(also termed artificial)lighting systems with the ability to generate specific and tunable wavelengths have been developed and applied.While the effects of light quality on plant growth and development have been studied,authoritative and reliable sets of light formulae tailored for the cultivation of economically important plants and plant traits are lacking as light qualities employed across laboratories are inconsistent.This is due,at least in part,to the lack of molecular data for plants examined under electric lights in indoor environments.It has hampered progress in the field of indoor horticulture,in particular,the transition from small-scale indoor farming to commercial plant factories.Here,we review the effects of light quality on model and crop plants studied from a physiological,physical and biochemical perspective,and explain how functional genomics can be employed in tandem to generate a wealth of molecular data specific for plants cultivated under indoor lighting.We also review the current state of lighting technologies in indoor horticulture specifically discussing how recent narrow-bandwidth lighting technologies can be tailored to cultivate economically valuable plant species and traits.Knowledge gained from a complementary phenotypic and functional genomics approach can be harvested not only for economical gains but also for sustainable food production.We believe that this review serves as a platform that guides future light-related plant research.展开更多
已报道低浓度溶血磷脂酸(lysophosphatidic acid,LPA)对去血清培养所致的神经元凋亡有神经保护作用.为了进一步观察LPA是否对β-amyloid peptide fragment 31-35(AβP31-35)所致的神经元凋亡也起类似的作用,本研究应用DNA电泳分析、HO33...已报道低浓度溶血磷脂酸(lysophosphatidic acid,LPA)对去血清培养所致的神经元凋亡有神经保护作用.为了进一步观察LPA是否对β-amyloid peptide fragment 31-35(AβP31-35)所致的神经元凋亡也起类似的作用,本研究应用DNA电泳分析、HO33342和TUNEL染色法等技术,对培养的小鼠大脑皮层神经元进行了观察.结果显示,只有使用较低浓度的LPA(1～10μmol/L)、并且将此剂量的LPA比AβP31-35提前12～24 h加入培养液时,才可看到LPA明显削弱了AβP31-35所致的神经元凋亡.以上结果表明,适当浓度的LPA在长时间预作用的条件下,可对AβP31-35所致的皮层神经元凋亡起保护因子或抗凋亡因子的作用,但其作用途径可能较在去血清培养所致的凋亡时更为复杂,因为在去血清的同时加入LPA就能制止去血清所致的凋亡.展开更多
文摘The Adventures of Huckleberry Finn is Mark Twain's masterpiece,the one book from which,as Ernest Hemingway noted," All modern American literature comes ".It accounts the adventures of white Huck helping black slave Jim escape and pursue freedom.Through their long journey along the Mississippi River,we can see panorama of America,such as its slavery,racial conflicts and integration,American Puritanism,and Westward Movement,etc.This thesis mainly deals with Americans'national traits reflected in The Adventures of Huckleberry Finn from the perspective of American developmental history and American culture.
文摘Thousand Seed Weight （TSW） is one of the major yield components of rapeseed （Brassica napus L.）. Here reports an extra-large seed germplasm GM01 which was obtained through isolated microspore culture. Three-way cross was made： H8--a Yunnan spring early-maturing rapeseed variety, ＂Legeney＂--a Canadian canola variety and ＂020010＂--a semi-winter late-maturing rapeseed variety. One hundred and forty eight doubled hyploid lines were obtained from the F~ plants of three-way cross through isolated mierospore culture. Among them, the TSW of GM01 amounted to 8.68 g and the TSW of 53 lines were above 5.0 g. The TSWs of GM01 were relatively stable among the multi-location field trials from 2007 to 2014 with variation being only 10%-15% among the locations and years. Compared with H8, GM01 had larger flowers, stigmas, siliques and seed diameters, but less branches, siliques per plant and seeds per silique.
基金We would like to acknowledge financial support from the Office of Research and Sponsored Programs of Wenzhou-Kean UniversityC.M.is supported by the European Union’s Horizon 2020 research and innovation program under the Marie Sklodowska-Curie grant agreement No.752418.
文摘As indoor horticulture gathers momentum,electric(also termed artificial)lighting systems with the ability to generate specific and tunable wavelengths have been developed and applied.While the effects of light quality on plant growth and development have been studied,authoritative and reliable sets of light formulae tailored for the cultivation of economically important plants and plant traits are lacking as light qualities employed across laboratories are inconsistent.This is due,at least in part,to the lack of molecular data for plants examined under electric lights in indoor environments.It has hampered progress in the field of indoor horticulture,in particular,the transition from small-scale indoor farming to commercial plant factories.Here,we review the effects of light quality on model and crop plants studied from a physiological,physical and biochemical perspective,and explain how functional genomics can be employed in tandem to generate a wealth of molecular data specific for plants cultivated under indoor lighting.We also review the current state of lighting technologies in indoor horticulture specifically discussing how recent narrow-bandwidth lighting technologies can be tailored to cultivate economically valuable plant species and traits.Knowledge gained from a complementary phenotypic and functional genomics approach can be harvested not only for economical gains but also for sustainable food production.We believe that this review serves as a platform that guides future light-related plant research.
