In Thailand, Brown planthopper (BPH;Nilaparvata lugens) infestation is one of the major annual disease outbreaks in rice crops, causing huge cultural and economic burdens to Thai Jasmine rice producers. Khao Dawk Mali 105 (KDML 105; KD), a well-known Thai Jasmine rice, is highly susceptible to BPH.
To better understand the biological mechanism of infestation, researchers investigated the metabolomic responses to BPH infestation in Thai rice varieties. 1H NMR spectroscopy, combined with chemometrics, was used to analyze the polar metabolome from leaf extracts of Thai Jasmine rice and its BPH resistant isogenic lines with and without BPH infestation at various time points. The study has identified, for the first time, several potential metabolic pathways for acclimatization and defense mechanisms against BPH infestation. These findings provide a valuable, first insight into BPH resistance mechanisms in Thai Jasmine rice.
This study was conducted by researchers from BIOTEC, Kasetsart University, Queen’s University Belfast (UK) and Beaumont Health System (USA).
Ref: Uawisetwathana, U., Graham, S.F., Kamolsukyunyong, W., Sukhaket, W., Klanchui, A., Toojinda, T., Vanavichit, A., Karoonuthaisiri, N. and Elliott, C.T. (2015). Quantitative 1H NMR metabolome profiling of Thai Jasmine rice (Oryza sativa) reveals primary metabolic response during brown planthopper infestation. Metabolomics, DOI 10.1007/s11306-015-0817-4.
Posted on 20 October 2015