title: Interaction of plant cell signaling molecules,  salicylic acid and jasmonic acid, with the mitochondria  of Helicoverpa armigera.
abstract: The cotton bollworm, Helicoverpa armigera is a polyphagous pest in Asia, Africa, and the Mediterranean Europe. Salicylic acid (SA) and jasmonic acid (JA) are the cell signaling molecules produced in response to insect attack in plants. The effect of these signaling molecules was investigated on the oxidative phosphorylation and oxidative stress of H. armigera. SA significantly inhibited the state III and state IV respiration, respiratory control index (RCI), respiratory complexes I and II, induced mitochondrial swelling, and cytochrome c release in vitro. Under in vivo conditions, SA induced state IV respiration as well as oxidative stress in time- and dose-dependent manner, and also inhibited the larval growth. In contrast, JA did not affect the mitochondrial respiration and oxidative stress. SA affected the growth and development of H. armigera, in addition to its function as signaling molecules involved in both local defense reactions at feeding sites and the induction of systemic acquired resistance in plants.
authors.affiliation: Department of Biochemistry, Gulbarga University, Gulbarga 585 106 Karnataka, India. akbar.pg@gmail.com
authors.forename: S M D
authors.initials: SM
authors.lastname: Akbar
authors.forename: H C
authors.initials: HC
authors.lastname: Sharma
authors.forename: S K
authors.initials: SK
authors.lastname: Jayalakshmi
authors.forename: K
authors.initials: K
authors.lastname: Sreeramulu
mesh_terms: D000704:Analysis of Variance; D000818:Animals; D019069:Cell Respiration / Q000187:drug effects*; D003517:Cyclopentanes / Q000494:pharmacology*; D045304:Cytochromes c / Q000378:metabolism; D004305:Dose-Response Relationship, Drug; D007770:L-Lactate Dehydrogenase / Q000378:metabolism; D007814:Larva / Q000187:drug effects / Q000254:growth & development; D015227:Lipid Peroxidation / Q000187:drug effects; D008928:Mitochondria / Q000187:drug effects / Q000378:metabolism*; D009036:Moths / Q000378:metabolism*; D010085:Oxidative Phosphorylation / Q000187:drug effects; D018384:Oxidative Stress / Q000187:drug effects; D010101:Oxygen Consumption / Q000187:drug effects; D054883:Oxylipins / Q000494:pharmacology*; D010944:Plants / Q000737:chemistry*; D020156:Salicylic Acid / Q000494:pharmacology*
chemical_list: D003517:Cyclopentanes; D054883:Oxylipins; C011006:jasmonic acid; D045304:Cytochromes c; D007770:L-Lactate Dehydrogenase; D020156:Salicylic Acid