采用日本武共电机株式会社生产的My Boy II食品物性分析仪分别对’津川1号'和,津原45'进行测定,探讨MyBoyfl食品物性分析仪在研究水稻品质、食味过程中的应用。结果表明:使用My Boy II食品物性分析仪对米饭硬度、弹性、附着性...采用日本武共电机株式会社生产的My Boy II食品物性分析仪分别对’津川1号'和,津原45'进行测定,探讨MyBoyfl食品物性分析仪在研究水稻品质、食味过程中的应用。结果表明:使用My Boy II食品物性分析仪对米饭硬度、弹性、附着性和黏性等指标进行测定,可以直接以数据和图表的方式将米饭物理特性表现出来,对水稻品质及食味研究具有重要意义。展开更多
In agricultural production,temperature and moisture are important factors affecting grain yield and quality.Although moderate drought at the grain-filling stage can effectively alleviate the damage caused by high temp...In agricultural production,temperature and moisture are important factors affecting grain yield and quality.Although moderate drought at the grain-filling stage can effectively alleviate the damage caused by high temperature,the specific regulatory mechanism driving the effect of moderate drought at the high temperature on starch synthesis is still unclear.To explore the effects and mechanisms of high temperature and moderate drought on rice starch synthesis at the grainfilling stage,the activities of enzymes and expression levels of the genes involved in starch synthesis under four different treatments involving high temperature and/or water stress(CK,HT,WS,and HT+WS)were investigated in this study.The starch synthesis of a japonica inbred rice was measured under the four treatments during the grain filling.The results show that the effects of high temperature and moderate drought on grain filling mainly occur in the inferior grains of rice.Through the regulation of enzymes involved in starch synthesis and the expression levels of their main genes,the synthesis of rice starch can be affected.Therefore,the high temperature and moderate drought were antagonistic,and moderate drought can alleviate the damage to grain quality at a high temperature by improving the starch synthesis of inferior grains in japonica rice.This study provides a basis for stress-resistance cultivation and breeding strategies of rice with high temperature tolerance.展开更多
文摘采用日本武共电机株式会社生产的My Boy II食品物性分析仪分别对’津川1号'和,津原45'进行测定,探讨MyBoyfl食品物性分析仪在研究水稻品质、食味过程中的应用。结果表明:使用My Boy II食品物性分析仪对米饭硬度、弹性、附着性和黏性等指标进行测定,可以直接以数据和图表的方式将米饭物理特性表现出来,对水稻品质及食味研究具有重要意义。
基金supported by the National Natural Science Foundation of China (U1708231 and 31601248)the China Agriculture Research System of MOF and MARA (CARS-01-49)the Liaoning Revitalization Talents Program, China (XLYC1807233)
文摘In agricultural production,temperature and moisture are important factors affecting grain yield and quality.Although moderate drought at the grain-filling stage can effectively alleviate the damage caused by high temperature,the specific regulatory mechanism driving the effect of moderate drought at the high temperature on starch synthesis is still unclear.To explore the effects and mechanisms of high temperature and moderate drought on rice starch synthesis at the grainfilling stage,the activities of enzymes and expression levels of the genes involved in starch synthesis under four different treatments involving high temperature and/or water stress(CK,HT,WS,and HT+WS)were investigated in this study.The starch synthesis of a japonica inbred rice was measured under the four treatments during the grain filling.The results show that the effects of high temperature and moderate drought on grain filling mainly occur in the inferior grains of rice.Through the regulation of enzymes involved in starch synthesis and the expression levels of their main genes,the synthesis of rice starch can be affected.Therefore,the high temperature and moderate drought were antagonistic,and moderate drought can alleviate the damage to grain quality at a high temperature by improving the starch synthesis of inferior grains in japonica rice.This study provides a basis for stress-resistance cultivation and breeding strategies of rice with high temperature tolerance.
