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| Content Provider | Springer Nature Link |
|---|---|
| Author | Zhu, Feng Zhang, Ping Meng, Yan Fa Xu, Fei Zhang, Da Wei Cheng, Jian Lin, Hong Hui Xi, De Hui |
| Copyright Year | 2012 |
| Abstract | Alpha-momorcharin (α-MMC) is type-1 ribosome inactivating proteins (RIPs) with molecular weight of 29 kDa and has lots of biological activity. Our recent study indicated that the α-MMC purified from seeds of Momordica charantia exhibited distinct antiviral and antifungal activity. Tobacco plants pre-treated with 0.5 mg/mL α-MMC 3 days before inoculation with various viruses showed less-severe symptom and less reactive oxygen species (ROS) accumulation compared to that inoculated with viruses only. Quantitative real-time PCR analysis revealed that the replication levels of viruses were lower in the plants treated with the α-MMC than control plants at 15 days post inoculation. Moreover, the coat protein expression of viruses was almost completely inhibited in plants which were treated with the α-MMC compared with control plants. Furthermore, the SA-responsive defense-related genes including non-expressor of pathogenesis-related genes 1 (NPR1), PR1, PR2 were up-regulated and activities of some antioxidant enzymes including superoxide dismutase (SOD), catalase (CAT), peroxidase (POD) were increased after the α-MMC treatment. In addition, the α-MMC (500 μg/mL) revealed remarkable antifungal effect against phytopathogenic fungi, in the growth inhibition range 50.35–67.21 %, along with their MIC values ranging from 100 to 500 μg/mL. The α-MMC had also a strong detrimental effect on spore germination of all the tested plant pathogens along with concentration as well as time-dependent kinetic inhibition of Sclerotinia sclerotiorum. The α-MMC showed a remarkable antiviral and antifungal effect and hence could possibly be exploited in crop protection for controlling certain important plant diseases. |
| Starting Page | 77 |
| Ending Page | 88 |
| Page Count | 12 |
| File Format | |
| ISSN | 00320935 |
| Journal | Planta |
| Volume Number | 237 |
| Issue Number | 1 |
| e-ISSN | 14322048 |
| Language | English |
| Publisher | Springer-Verlag |
| Publisher Date | 2012-09-16 |
| Publisher Place | Berlin/Heidelberg |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Antifungal activity Antiviral α-Momorcharin Reactive oxygen species (ROS) Ribosome inactivating proteins (RIPs) Virus replication Plant Sciences Agriculture Ecology Forestry |
| Content Type | Text |
| Resource Type | Article |
| Subject | Genetics Plant Science |
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