Abstract: A processing method for preserved fruits by cold impregnation is provided, belonging to the technical field of preserved fruit preparation. Firstly, washed and cut fruits are appropriately dehydrated to remove part of the water content, thereby enhancing firmness and flexibility of the fruit flesh, avoiding mushiness during the sugar permeation, and reducing sugar consumption as well as the loss of nutritional and flavor substances from the fruits. Following dehydration, low-temperature sugar permeation is conducted, during which the composite of a color-protecting agent and a firming agent are added to the sugar solution, allowing firming and color protection to be completed simultaneously with the sugar permeation of the fruit flesh. This reduces operational steps, improves production efficiency, and avoids the loss of nutrients from fruits caused by repeated rinsing in conventional firming and color-protecting processes.

Abstract: The disclosure isolates and identifies a peptide PEP1 that regulates plant root development and a gene OsPEP1 encoding the same. Exogenous application of PEP1 could inhibit the plant root development. A recombinant expression vector containing the gene or part of the DNA of the gene is obtained, and a transgenic plant with altered root growth and development is obtained by transforming with the recombinant expression vector. Therefore, the peptide can be used as a plant growth regulator, and the gene encoding the same and precursor protein thereof can be used as a potential molecular breeding target for crop improvement, for example, improving crop yield by regulating the growth and development of crop roots.

Abstract: The disclosure isolates and identifies a peptide PEP1 that regulates plant root development and a gene OsPEP1 encoding the same. Exogenous application of PEP1 could inhibit the plant root development. A recombinant expression vector containing the gene or part of the DNA of the gene is obtained, and a transgenic plant with altered root growth and development is obtained by transforming with the recombinant expression vector. Therefore, the peptide can be used as a plant growth regulator, and the gene encoding the same and precursor protein thereof can be used as a potential molecular breeding target for crop improvement, for example, improving crop yield by regulating the growth and development of crop roots.