[Design and Clinical Application of Split Memory Alloy Sternum Plate].

Objective: The design and development of split memory alloy sternum bone plate are discussed, and the effect of split memory alloy sternum bone plate internal fixation in the treatment of sternal fractures are analysed.

Methods: The structure of the product is designed according to the anatomy and physiological characteristics of human bones, and the cross section shape of the product is designed according to the cross section shape of human bones. Internal fixation is effective in the treatment of sternal fracture.

SlPIN1 regulates auxin efflux to affect flower abscission process.

Solanum lycopersicum PIN-FORMED1 (SlPIN1), a major auxin efflux facilitator, contributes to the establishment of auxin maxima during organ initiation and development in tomato. However, the functions of SlPIN1 during organ abscission remain unclear. In our study, SlPIN1 expression decreased immediately after flower removal and increased following IAA treatment, indicating a high sensitivity to auxin depletion.