| Title: | "Salicylic Acid Induces Changes in Mango Fruit that Affect Oviposition Behavior and Development of the Oriental Fruit Fly, Bactrocera dorsalis" |
| Author(s): | Pagadala Damodaram KJ; Aurade RM; Kempraj V; Roy TK; Shivashankara KS; Verghese A; |
| Address: | "National Fellow Lab, Division of Entomology and Nematology, Indian Institute of Horticultural Research, Hessaraghatta Lake PO, Bangalore, Karnataka, India. Division of Plant Physiology and Biochemistry, Indian Institute of Horticultural Research, Hessaraghatta Lake PO, Bangalore, Karnataka, India" |
| DOI: | 10.1371/journal.pone.0139124 |
| ISSN/ISBN: | 1932-6203 (Electronic) 1932-6203 (Linking) |
| Abstract: | "The Oriental fruit fly, Bactrocera dorsalis (Hendel) is an important quarantine pest around the globe. Although measures for its control are implemented worldwide through IPM and male annihilation, there is little effect on their population. Hence, there is a need for new strategies to control this minacious pest. A strategy that has received negligible attention is the induction of 'natural plant defenses' by phytohormones. In this study, we investigated the effect of salicylic acid (SA) treatment of mango fruit (cv. Totapuri) on oviposition and larval development of B. dorsalis. In oviposition choice assays, gravid females laid significantly less eggs in SA treated compared to untreated fruit. Headspace volatiles collected from SA treated fruit were less attractive to gravid females compared to volatiles from untreated fruit. GC-MS analysis of the headspace volatiles from SA treated and untreated fruit showed noticeable changes in their chemical compositions. Cis-ocimene and 3-carene (attractants to B. dorsalis) were reduced in the headspace volatiles of treated fruit. Further, reduced pupae formation and adult emergence was observed in treated fruit compared to control. Increased phenol and flavonoid content was recorded in treated fruit. We also observed differential expression of anti-oxidative enzymes namely catalase (CAT), polyphenoloxidase (PPO) and peroxidase (POD). In summary, the results indicate that SA treatment reduced oviposition, larval development and adult emergence of B. dorsalis and suggest a role of SA in enhancing mango tolerance to B. dorsalis" |
| Keywords: | "Animals Antioxidants/metabolism Behavior, Animal/*drug effects Biological Assay Choice Behavior/drug effects Female Flavonoids/metabolism Fruit/*metabolism Larva/drug effects/growth & development Mangifera/*metabolism Olfactometry Oviposition/*drug effect;" |
| Notes: | "MedlinePagadala Damodaram, Kamala Jayanthi Aurade, Ravindra Mahadappa Kempraj, Vivek Roy, Tapas Kumar Shivashankara, Kodthalu Seetharamaiah Verghese, Abraham eng Research Support, Non-U.S. Gov't 2015/10/01 PLoS One. 2015 Sep 30; 10(9):e0139124. doi: 10.1371/journal.pone.0139124. eCollection 2015" |
