Heterologous expression of enhances root development and salt tolerance in .

Introduction: β-Mannanase is a plant cell wall remodeling enzyme involved in the breakdown of hemicellulose and plays an important role in growth by hydrolyzing the mannan-like polysaccharide, but its function in adaptation to salt stress has been less studied.

Methods: Based on cloned the gene from L., the study was carried out by heterologously expressing the gene in , and then observing the plant phenotypes and measuring relevant physiological and biochemical indicators under 150 mM salt treatment.