| Title: | Exogenous Application of Methyl Salicylate Induces Defence in Brassica against Peach Potato Aphid Myzus persicae |
| Author(s): | Ali J; Wei D; Mahamood M; Zhou F; King PJH; Zhou W; Shamsi IH; |
| Address: | "School of Life Sciences, Keele University, Keele, Staffordshire ST5 5BG, UK. Key Laboratory of Crop Germplasm Resource, Department of Agronomy, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310058, China. Department of Biology, Qassim University, Buraydah 51452, Saudi Arabia. Department of Food Science and Nutrition, Zhejiang Key Laboratory for Agro-Food Processing, Zhejiang University, Hangzhou 310058, China. Key Laboratory of State Forestry and Grassland Administration on Highly Efficient Utilization of Forestry Biomass Resources in Southwest China, College of Material and Chemical Engineering, Southwest Forestry University, Kunming 650224, China. Institute of Ecosystem Science Borneo, University Putra Malaysia, Bintulu 97000, Malaysia. Faculty of Agricultural and Forestry Sciences, University Putra Malaysia, Bintulu 97000, Malaysia. Key Laboratory of Biology of Crop Pathogens and Insects of Zhejiang Province, Institute of Insect Sciences, Zhejiang University, Hangzhou 310058, China" |
| ISSN/ISBN: | 2223-7747 (Print) 2223-7747 (Electronic) 2223-7747 (Linking) |
| Abstract: | "Plants use a variety of secondary metabolites to defend themselves against herbivore insects. Methyl salicylate (MeSA) is a natural plant-derived compound that has been used as a plant defence elicitor and a herbivore repellent on several crop plants. The aim of this study was to investigate the effect of MeSA treatment of Brassica rapa subsp. chinensis ('Hanakan' pak choi) on its interactions with peach potato aphids, Myzus persicae, and their natural enemy, Diaeretiella rapae. For this, we selected two concentrations of MeSA (75 mg/L and 100 mg/L). Our results showed that aphid performance was significantly reduced on plants treated with MeSA (100 mg/L). In a cage bioassay, the MeSA (100 mg/L)-treated plants showed lower adult survival and larviposition. Similarly, the MeSA (100 mg/L)-treated plants had a significantly lower aphid settlement in a settlement bioassay. In contrast, the M. persicae aphids did not show any significant difference between the MeSA (75 mg/L)-treated and control plants. In a parasitoid foraging bioassay, the parasitoid D. rapae also did not show any significant difference in the time spent on MeSA-treated and control plants. A volatile analysis showed that the MeSA treatment induced a significant change in volatile emissions, as high numbers of volatile compounds were detected from the MeSA-treated plants. Our results showed that MeSA has potential to induce defence in Brassica against M. persicae and can be utilised in developing sustainable approaches for the management of peach potato aphids" |
| Keywords: | Diaeretiella rapae Myzus persicae induced defence methyl salicylate tritrophic interaction; |
| Notes: | "PubMed-not-MEDLINEAli, Jamin Wei, Dongming Mahamood, Mohammad Zhou, Fanrui King, Patricia Jie Hung Zhou, Wenwu Shamsi, Imran Haider eng 31961143008/National Natural Science Foundation of China/ 31750110462/National Natural Science Foundation of China/ 32250410280/National Natural Science Foundation of China/ Switzerland 2023/05/13 Plants (Basel). 2023 Apr 26; 12(9):1770. doi: 10.3390/plants12091770" |
