Silencing CaTPS1 Increases the Sensitivity to Low Temperature and Salt Stresses in Pepper

Trehalose, as a non-reductive disaccharide, plays vital role in plant growth and development resistance to abiotic stress. Trehalose-6-phosphate synthase (TPS) is key enzyme the synthesis mechanism of trehalose TPS1 genes play crucial response stress plants. However, it has rarely been reported that CaTPS1 responds cold salt stresses pepper. To verify function stresses, was silenced by virus-induced gene silencing (VIGS). Subsequently, expressions CaTPS1, morphology some physiological indexes were analyzed after The results showed expression significantly lower CaTPS1-silenced (pTRV2-CaTPS1) than non-VIGS (CK) negative control (PTRV2-00) parameters have changed accordingly. chlorophyll content decreased, while content, peroxidase (POD) activity, catalase (CAT) activity ascorbate (APX) increased all treatments. these pTRV2-CaTPS1 CK PTRV2-00 This study suggested involved