title: Exogenous Salicylic Acid Enhances the Resistance of Wheat Seedlings to Hessian Fly (Diptera: Cecidomyiidae) Infestation Under Heat Stress.
abstract: Heat stress exerts significant impact on plant-parasite interactions. Phytohormones, such as salicylic acid (SA), play important roles in plant defense against parasite attacks. Here, we studied the impact of a combination of heat stress and exogenous SA on the resistance of wheat (Triticum aestivum L.) plants to the Hessian fly [Mayetiola destructor (Say)]. We found that the wheat cultivar 'Molly', which contains the resistance gene H13, lost resistance to Hessian fly under heat stress (40°C for 3 and 6 h), and that exogenous application of SA on Molly seedlings right before heat stress can partially prevent the loss of resistance of Molly plants under heat conditions. Our findings have significant implications for understanding the dynamics of plant-insect interactions in the context of heat stress.
authors: Department of Biological Sciences, Fayetteville State University, Fayetteville, NC 28301.
authors: Joshua
authors: J
authors: Underwood
authors: Department of Biological Sciences, Fayetteville State University, Fayetteville, NC 28301.
authors: John
authors: J
authors: Moch
authors: USDA-ARS and Department of Entomology, Kansas State University, Manhattan, KS 66506.
authors: Ming-Shun
authors: MS
authors: Chen
authors: Department of Biological Sciences, Fayetteville State University, Fayetteville, NC 28301. lzhu@uncfsu.edu.
authors: Lieceng
authors: L
authors: Zhu
mesh_terms: D000818:Animals; D000898:Antibiosis; D004175:Diptera / Q000254:growth & development / Q000502:physiology*; D006358:Hot Temperature / Q000009:adverse effects*; D007814:Larva / Q000254:growth & development / Q000502:physiology; D010937:Plant Growth Regulators / Q000494:pharmacology*; D020156:Salicylic Acid / Q000494:pharmacology*; D036226:Seedlings / Q000254:growth & development / Q000502:physiology; D013312:Stress, Physiological; D014908:Triticum / Q000254:growth & development / Q000502:physiology*
chemical_list: D010937:Plant Growth Regulators; D020156:Salicylic Acid
keywords: Hessian fly; heat stress; resistance; salicylic acid; wheat