[Objective] This study aimed to explore the effects of nitrogen fertigation rate on the protein components in grains and processing quality of different wheat varieties. [Method] Under the condition of higher soil fer...[Objective] This study aimed to explore the effects of nitrogen fertigation rate on the protein components in grains and processing quality of different wheat varieties. [Method] Under the condition of higher soil fertility, different amounts of N-fertilizer were applied in the plots, and then the contents of total protein and its components, percentage of the component content to total protein content as well as the processing quality of grains of two strong-gluten wheat varieties (Linyou145 and Zhengmai9023) and two weak-gluten wheat varieties (Ningmai9 and Baofeng949) were determined. [Result] The contents of total protein and globulin, gliadin and glutenin were improved significantly with the increase of the N-fertilizer amount; but the content of albumin did not show remarkable increase; in addition, the percentage of each protein component was relative stable and did not increase significantly. Increase in the amount of N-fertilizer improved the sedimentation value, wet gluten content, loaf volume and loaf score, decreased the volume weight of grain. [Conclusion] This study provideed theoretical support for high-quality wheat production.展开更多
目的:探讨中药骨碎补对体外培养的人的牙髓、牙龈、牙周膜成纤维细胞增殖的影响。方法采用组织块法外培养人牙髓、牙龈、牙周膜成纤维细胞,取第4、5代培养细胞随机分为实验组和对照组,实验组加不同浓度的骨碎补,对照组只加培养液。...目的:探讨中药骨碎补对体外培养的人的牙髓、牙龈、牙周膜成纤维细胞增殖的影响。方法采用组织块法外培养人牙髓、牙龈、牙周膜成纤维细胞,取第4、5代培养细胞随机分为实验组和对照组,实验组加不同浓度的骨碎补,对照组只加培养液。通过HE染色观察其对牙髓、牙龈、牙周膜成纤维细胞的形态、结构及生长增殖的影响,通过MTT法和考马斯亮蓝法对实验组和对照组的细胞生长情况和总蛋白合成的检测。结果①在10-1000μg/ml浓度范围内骨碎补对人牙髓、牙龈、牙周膜成纤维细胞均有促增殖作用( P <0.05),尤以100μg/ml浓度最为明显( P <0.01);②总蛋白测定结果显示在骨碎补浓度为10μg/ml时,对照组与其总蛋白含量差异无统计学意义( P >0.05),实验组细胞总蛋白含量随骨碎补浓度增加高于对照组( P <0.05),尤以500μg/ml骨碎补浓度组作用牙髓成纤维细胞最佳;而100μg/ml骨碎补浓度组作用牙龈、牙周膜成纤维细胞最显著。结论骨碎补在有效作用浓度范围内,其促增殖效应和总蛋白含量与骨碎补浓度呈剂量依赖关系,随着浓度的增加促增殖作用增强、总蛋白含量增加,浓度达到最大作用后,随着浓度增加作用反而呈现减弱趋势。展开更多
基金Supported by the Special Program for Wheat Grain Quality Stability from Ministry of Agriculture of China(070101)the National Key Technologies R&D Program of China during the 10th Five-Year Plan Period(2004BA520A12-4)~~
文摘[Objective] This study aimed to explore the effects of nitrogen fertigation rate on the protein components in grains and processing quality of different wheat varieties. [Method] Under the condition of higher soil fertility, different amounts of N-fertilizer were applied in the plots, and then the contents of total protein and its components, percentage of the component content to total protein content as well as the processing quality of grains of two strong-gluten wheat varieties (Linyou145 and Zhengmai9023) and two weak-gluten wheat varieties (Ningmai9 and Baofeng949) were determined. [Result] The contents of total protein and globulin, gliadin and glutenin were improved significantly with the increase of the N-fertilizer amount; but the content of albumin did not show remarkable increase; in addition, the percentage of each protein component was relative stable and did not increase significantly. Increase in the amount of N-fertilizer improved the sedimentation value, wet gluten content, loaf volume and loaf score, decreased the volume weight of grain. [Conclusion] This study provideed theoretical support for high-quality wheat production.
文摘目的:探讨中药骨碎补对体外培养的人的牙髓、牙龈、牙周膜成纤维细胞增殖的影响。方法采用组织块法外培养人牙髓、牙龈、牙周膜成纤维细胞,取第4、5代培养细胞随机分为实验组和对照组,实验组加不同浓度的骨碎补,对照组只加培养液。通过HE染色观察其对牙髓、牙龈、牙周膜成纤维细胞的形态、结构及生长增殖的影响,通过MTT法和考马斯亮蓝法对实验组和对照组的细胞生长情况和总蛋白合成的检测。结果①在10-1000μg/ml浓度范围内骨碎补对人牙髓、牙龈、牙周膜成纤维细胞均有促增殖作用( P <0.05),尤以100μg/ml浓度最为明显( P <0.01);②总蛋白测定结果显示在骨碎补浓度为10μg/ml时,对照组与其总蛋白含量差异无统计学意义( P >0.05),实验组细胞总蛋白含量随骨碎补浓度增加高于对照组( P <0.05),尤以500μg/ml骨碎补浓度组作用牙髓成纤维细胞最佳;而100μg/ml骨碎补浓度组作用牙龈、牙周膜成纤维细胞最显著。结论骨碎补在有效作用浓度范围内,其促增殖效应和总蛋白含量与骨碎补浓度呈剂量依赖关系,随着浓度的增加促增殖作用增强、总蛋白含量增加,浓度达到最大作用后,随着浓度增加作用反而呈现减弱趋势。