Methyl jasmonate induces resistance against Penicillium citrinum in Chinese bayberry by priming of defense responses |
| |
| Institution: | 1. College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, PR China;2. College of Life Science and Engineering, Chongqing Three Gorges University, Chongqing 404100, PR China;1. International Center for Agro-Informatics and Sustainable Development (ICASD), College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, China;2. National Engineering and Technology Center for Information Agriculture, Nanjing Agricultural University, Nanjing 210095, China;3. Department of Agriculture, Qingfeng Farm, Hulin, Heilongjiang 158421, China;4. College of Ecology and Environmental Science, Inner Mongolia Agricultural University, Hohhot 010019, China;5. Center for Spatial Technologies and Remote Sensing (CSTARS), Department of Land, Air, and Water Resources, University of California, Davis, CA 95616, USA;6. Department of Soil and Crop Sciences, Colorado State University, Fort Collins, CO 80523, USA;1. International Center for Agro-Informatics and Sustainable Development, College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, China;2. National Engineering and Technology Center for Information Agriculture, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China;3. Precision Agriculture Center, University of Minnesota, St. Paul, MN 55108, USA;4. Department of Agriculture, Qingfeng Farm, Hulin, Heilongjiang 158421, China;5. College of Ecology and Environmental Science, Inner Mongolia Agricultural University, Hohhot, Inner Mongolia 010019, China;6. Department of Soil and Crop Sciences, Colorado State University, Fort Collins, CO 80523, USA;1. College of Science, Nanjing Agricultural University, Nanjing, 210095, China;2. Bren School of Environmental Science and Management, University of California, Santa Barbara, CA, 93106, USA;3. College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao, 266109, China |
| |
| Abstract: | Methyl jasmonate (MeJA) can act as an activator of defense responses in plants against pathogenic infection. However, the mechanisms involved in the postharvest induction of resistance by MeJA in fruit are largely unknown. Thus, we investigated the effect of a postharvest MeJA treatment on disease resistance against Penicillium citrinum infection in Chinese bayberries and the possible mechanisms. The results indicated that treatment with 10 μmol L?1 of MeJA significantly inhibited green mould rot caused by P. citrinum, with the decay incidence being 66.2% lower than that of the control fruit after storage at 1 °C for 8 d. Moreover, it is clear that MeJA triggers a priming mechanism in Chinese bayberries, since only the MeJA-treated fruit showed an enhanced capacity to augment defense responses upon challenge with the pathogen. These augmented responses included an H2O2 burst, enhanced protein levels of phenylalanine ammonia-lyase and chitinase, and accumulation of phenolic compounds, lignin and phytoalexin. Therefore, our results suggest that a postharvest MeJA treatment induces disease resistance against P. citrinum in Chinese bayberries by priming of defense responses. |
| |
| Keywords: | Chinese bayberry Methyl jasmonate Decay Induced resistance |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
