Siberian apricot(Prunus sibirica L.)is a traditional nut tree species in East Asia and Siberia and is a possible contribution to healthy diets.However,it has attracted little research attention and information on the ...Siberian apricot(Prunus sibirica L.)is a traditional nut tree species in East Asia and Siberia and is a possible contribution to healthy diets.However,it has attracted little research attention and information on the nutritional value of its kernel is limited.In this study,the profile,nutritional value and variation of amino acids were investigated in eight provenances.The kernels contained29×10-2 g/g protein and were rich in glutamic acid(26.5%),aspartic acid(11.3%)and arginine(10.1%).They showed higher essential amino acids(EAA)than similar protein values for almonds.The variation coefficients of amino acids ranged from 3.8 to 43.7%,and the levels of seven amino acids were significantly different among the eight provenances.The proportion of essential amino acids to total amino acids and amino acid score were also quite different.Protein was negatively correlated with some amino acids and protein quality values.In conclusion,there were two superior provenances(Wanjiagou and Horinger County)with high EAA contents and protein quality,and could be used in the large-scale development of this species.展开更多
本文描述了到目前为止仅在我国发现的一种杏树新病害——小叶病。用电镜检查天然感病杏树叶片中脉的超薄切片,发现韧皮细胞中存在类立克次体(RLO)。RLO 为卵圆形或棒状,直径约0.2—0.5μm,长约1.0—2.5μm。它们被双膜(波纹状的细胞壁...本文描述了到目前为止仅在我国发现的一种杏树新病害——小叶病。用电镜检查天然感病杏树叶片中脉的超薄切片,发现韧皮细胞中存在类立克次体(RLO)。RLO 为卵圆形或棒状,直径约0.2—0.5μm,长约1.0—2.5μm。它们被双膜(波纹状的细胞壁和光滑的细胞质膜)环围着。在横切片中,这些微生物为卵圆形,内部结构由核糖体和带有 DNA 样细丝的核区组成。在纵切片中,微生物呈棒状。在健株组织中未发现这种微生物。青霉素处理染病杏树后,病状完全消失,说明利用电镜看到的类立克次体是杏树小叶病的病原物。展开更多
基金This study is supported by Fundamental Research Funds for the Central Non-profit Research Institution of Chinese Academy of Forestry (CAFYBB2017ZA004-4)
文摘Siberian apricot(Prunus sibirica L.)is a traditional nut tree species in East Asia and Siberia and is a possible contribution to healthy diets.However,it has attracted little research attention and information on the nutritional value of its kernel is limited.In this study,the profile,nutritional value and variation of amino acids were investigated in eight provenances.The kernels contained29×10-2 g/g protein and were rich in glutamic acid(26.5%),aspartic acid(11.3%)and arginine(10.1%).They showed higher essential amino acids(EAA)than similar protein values for almonds.The variation coefficients of amino acids ranged from 3.8 to 43.7%,and the levels of seven amino acids were significantly different among the eight provenances.The proportion of essential amino acids to total amino acids and amino acid score were also quite different.Protein was negatively correlated with some amino acids and protein quality values.In conclusion,there were two superior provenances(Wanjiagou and Horinger County)with high EAA contents and protein quality,and could be used in the large-scale development of this species.
文摘本文描述了到目前为止仅在我国发现的一种杏树新病害——小叶病。用电镜检查天然感病杏树叶片中脉的超薄切片,发现韧皮细胞中存在类立克次体(RLO)。RLO 为卵圆形或棒状,直径约0.2—0.5μm,长约1.0—2.5μm。它们被双膜(波纹状的细胞壁和光滑的细胞质膜)环围着。在横切片中,这些微生物为卵圆形,内部结构由核糖体和带有 DNA 样细丝的核区组成。在纵切片中,微生物呈棒状。在健株组织中未发现这种微生物。青霉素处理染病杏树后,病状完全消失,说明利用电镜看到的类立克次体是杏树小叶病的病原物。
