TABLE 1.
Effect of plant–plant communication via volatile organic compounds and root exudates on the suppression of plant pathogens
| Donor plant | Receiver plant | Signal molecule | Target pathogen | References |
|---|---|---|---|---|
| Volatile organic compounds | ||||
| Lima bean | Lima bean | Volatile organic compound, nonanal |
P. syringae pv. syringae PR‐2 |
Yi et al. (2009) |
| Tomato | Tomato |
(Z)‐3‐hexenyl propionate (Z)‐3‐hexenyl butyrate |
P. syringae pv. tomato stomatal closure | Lopez‐Gresa et al. (2018) |
| Maize | Maize | (Z)‐3‐hexen‐1‐yl acetate, (Z)‐3‐hexenal, linalool and β‐caryophyllene | Fusarium spp. | Piesik et al. (2011) |
| Barley and wheat | Barley and wheat | GLV, (Z)‐b‐ocimene and linalool | Fusarium spp. | Piesik et al. (2013) |
| Wheat | Wheat | GLVs, fatty acid derivatives, benzenoids and terpenoid | Puccinia triticina | Castelyn et al. (2014) |
| Lima bean | Lima bean | Limonene, linalool, nonanal, methyl salicylate and methyl jasmonate | Colletortichum lindemuthianum | Quintana‐Rodriguez et al. (2015) |
| Tobacco | Tobacco | Methyl salicylate | Tobacco mosaic virus | Shulaev, Silverman, and Raskin (1997) |
| Tea (Camellia sinensis) | Tea | (E)‐nerolidol | Colletotrichum fructicola | Chen et al. (2020) |
| A. thaliana | A. thaliana | α‐ and β‐pinene | P. syringae pv. tomato | Riedlmeier et al. (2017) |
| Maize | Maize |
GLVs, terpenes Shikimic acid pathway derivatives |
Pantoea ananatis | Delaney et al. (2015) |
| Root exudates | ||||
| Poncirus trifoliata | P. trifoliata | Salicylic acid | Xanthomonas axonopodis pv. citri | Zhang, Zou, Liu, and Wu (2019) |
| Maize | Pepper | 2,4‐Dihydroxy‐7‐methoxy‐2H‐1,4‐benzoxazin‐3(4H)‐one, 6‐methoxy‐2‐benzoxazolinone, benzothiazole and 2‐(methylthio)‐benzothiazole | P. capsici | Yang et al. (2014) |
| Tobacco | Tobacco | Salicylic acid | R. solanacearum and P. syringae pv. tabaci | Cheol Song, Sim, Kim, and Ryu (2016) |
| A. thaliana | A. thaliana | Root‐derived signal(s) | P. syringae pv. tomato | Orlovskis and Reymond (2020) |
| E. crus‐galli | Rice a | (−)‐loliolide |
P. oryzae F. oxysporum R. solani |
Kong, Xu, Zhang, and Zhang (2010), Li, Zhao, and Kong (2020) and Zhao, Cheng, Guo, Duan, and Che (2018) |
| Rice | Rice a | Allantoin |
P. syringae P. carotovorum |
Takagi et al. (2016) and Yang et al. (2018) |
a
This information was obtained from several reports, some of which reported these chemicals as inter‐plant signals and others as their effects on plant pathogens.