| Title: | Virus-Infected Melon Plants Emit Volatiles that Induce Gene Deregulation in Neighboring Healthy Plants |
| Author(s): | Lopez-Berenguer C; Donaire L; Gonzalez-Ibeas D; Gomez-Aix C; Truniger V; Pechar GS; Aranda MA; |
| Address: | "Abiopep S.L., R&D Department, Parque Cientifico de Murcia, Ctra. de Madrid, Km 388, Complejo de Espinardo, Edf. R, 30100 Espinardo, Murcia, Spain. Centro de Edafologia y Biologia Aplicada del Segura (CEBAS)-CSIC, Department of Stress Biology and Plant Pathology, P.O. Box 164, 30100 Espinardo, Murcia, Spain" |
| DOI: | 10.1094/PHYTO-07-20-0301-R |
| ISSN/ISBN: | 0031-949X (Print) 0031-949X (Linking) |
| Abstract: | "It is well described that viral infections stimulate the emission of plant volatiles able to recruit viral vectors thereby promoting virus spread. In contrast, much less is known on the effects that emitted volatiles may have on the metabolism of healthy neighboring plants, which are potential targets for new infections through vector transmission. Watermelon mosaic virus (WMV) (genus Potyvirus, family Potyviridae) is an aphid-transmitted virus endemic in cucurbit crops worldwide. We have compared gene expression profiles of WMV-infected melon plants with those of healthy or healthy-but-cohabited-with-infected plants. Pathogenesis-related (PR) and small heat shock protein encoding genes were deregulated in cohabited plants, and PR deregulation depended on the distance to the infected plant. The signaling was short distance in the experimental conditions used, and cohabiting had a moderate effect on the plant susceptibility to WMV. Static headspace experiments showed that benzaldehyde and gamma-butyrolactone were significantly over-emitted by WMV-infected plants. Altogether, our data suggest that perception of a volatile signal encoded by WMV-infected tissues triggers a response to prepare healthy tissues or/and healthy neighboring plants for the incoming infections" |
| Keywords: | Animals *Aphids *Cucurbitaceae Plant Diseases *Plant Viruses Transcriptome benzaldehyde gamma-butyrolactone potyvirus static headspace volatile organic compounds watermelon mosaic virus; |
| Notes: | "MedlineLopez-Berenguer, Carmen Donaire, Livia Gonzalez-Ibeas, Daniel Gomez-Aix, Cristina Truniger, Veronica Pechar, Giuliano S Aranda, Miguel A eng 2020/12/02 Phytopathology. 2021 May; 111(5):862-869. doi: 10.1094/PHYTO-07-20-0301-R. Epub 2021 Apr 15" |
