The effects of heat stress and Hessian fly (Mayteiola destructor) infestation on polar lipids in resistant and susceptible wheat near-isogenic lines
Transient heat stress compromises resistance of host plants to Hessian fly, Mayetiola destructor, and other biotic stresses. However, the mechanism for the loss of plant resistance under heat stress remains to be determined. In this study, we determined polar lipid profiles in control and Hessian fly-infested resistant and susceptible wheat seedlings with/without heat stress using an automated electrospray ionization-tandem mass spectrometry analysis. Heat stress alone or in combination with infestation, caused significant reductions in the content of total polar lipids and double bond index, and exerted greater impacts on lipid metabolism than heat stress or infestation alone in Molly and Newton. The results suggest that changes in lipid metabolism caused by heat stress may be part of the metabolic pathways through which heat stress suppresses wheat plant resistance to Hessian fly infestation.
Currie, Yaleaka B, "The effects of heat stress and Hessian fly (Mayteiola destructor) infestation on polar lipids in resistant and susceptible wheat near-isogenic lines" (2014). ETD Collection for Fayetteville State University. AAI1581864.