An in Vitro Approach to Investigate the Role of Abscisic Acid in Alleviating the Negative Effects of Chilling Stress on Banana Shoots

作     者：Ibrahim Hmmam Ali Raza Ivica Djalovic Nagwa Khedr Abdou Abdellatif 

作者机构：Pomology DepartmentFaculty of AgricultureCairo UniversityGiza2613Egypt College of AgricultureFujian Agriculture and Forestry UniversityFuzhou350002China Institute of Field and Vegetable CropsNational Institute of the Republic of SerbiaNovi SadSerbia 

出 版 物：《Phyton-International Journal of Experimental Botany》 (国际实验植物学杂志（英文）)

年 卷 期：2023年第92卷第6期

页      面：1695-1711页

核心收录：

学科分类：09[农学] 0902[农学-园艺学] 090201[农学-果树学] 

基　　金：This research was funded and supported by a research grant from the Science Technology and Innovation Funding Authority(STIFA) under STDF-RG No.35967 

主　　题：Abiotic stress antioxidant cold stress plant hormone photosynthetic pigment 

摘      要：Banana is a tropical crop cultivated in warm *** stress in Egypt is making banana crops less *** acid(ABA),a key plant hormone,regulates metabolic and physiological processes and protects plants from a variety of *** vitro growing banana shoots were pre-treated with ABA at four concentrations(0,25,50,and 100 mM)and chilled at 5℃for 24 h,followed by a six-day recovery period at 25℃.By comparing ABA treatments to both positive and negative controls,physiological and biochemical changes were *** stress(5℃)caused a considerable increase in lipid peroxidation and ion leakage and reduced photosynthetic pigments in cold-treated *** the concentration of ABA to 100μM enhanced the response to chilling *** had a major effect on mitigating chilling injury in banana shoots by keeping cell membranes stable and lowering the amount of ion leakage and lipid ***,ABA significantly maintained the photosynthetic pigment concentration of banana shoots;accumulated higher amounts of total soluble carbohydrates and proline;and increased DPPH radical scavenging ***,ABA treatment enhanced cold tolerance in chilling-stressed banana shoots through the regulation of antioxidant enzyme ***,the results show that ABA is a good choice for protecting banana shoots from the damage caused by chilling stress.