The adjustment of salicylic acid on stomatal aperture of Spinacia oleracea L leaf epidermis under salt stress
CHEN Guan-nan
LIU Jin-xiang
CAO Yu
WANG Hong-xing
Abstract：Spinacia oleracea L was used as materials to study the effect of salicylic acid(SA)with different concentrations on stomatal aperture of spinach leaf epidermis in the condition of salt stress.Epidermis stom-atal morphology,stomatal aperture and soluble sugar content were characterized and tested by scanning electron microscope(SEM),ordinary optical microscope and anthrone method.Results presented that with the increase of SA concentration,leaf epidermis stomatal morphology by slender line gradually became oval;the leaf epidermis stomatal aperture gradually increased,when the SA concentration was 200 mg/L, the stomatal aperture achieved maximum;leaf soluble sugar content presented the trend of increase firstly, then lower,when SA concentration was 150 mg/L,soluble sugar content achieved maximum,and the con-tent increased by 28.9%than that under salt stress.The addition of SA could adjust the stomatal morpholo-gy and stomatal aperture of spinach leaf epidermis,and enhance its photosynthetic efficiency and osmotic regulation effect,thus improve the salt resistance of spinach.
Keywords：Spinacia oleracea Lstomatal aperturesalt stresssalicylic acid
Publication Date：2014-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：6( 33-38 )