Rootstock-Scion Interaction Affects the Composition and Pathogen Inhibitory Activity of Tobacco (<i>Nicotiana tabacum</i> L.) Root Exudates
The composition and allelopathy to <i>Phytophthora nicotianae</i> (the causal agent of tobacco black shank disease) of root exudates from a resistant tobacco (<i>Nicotiana tabacum</i> L.) cultivar Gexin 3, a susceptible cultivar Xiaohuangjin 1025 and their reciprocal grafts w...
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| Format: | Article |
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MDPI AG
2020-11-01
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| Series: | Plants |
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| Online Access: | https://www.mdpi.com/2223-7747/9/12/1652 |
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| author | Cheng-Sheng Zhang Yanfen Zheng Lijuan Peng Jianmin Cao |
| author_facet | Cheng-Sheng Zhang Yanfen Zheng Lijuan Peng Jianmin Cao |
| author_sort | Cheng-Sheng Zhang |
| collection | DOAJ |
| description | The composition and allelopathy to <i>Phytophthora nicotianae</i> (the causal agent of tobacco black shank disease) of root exudates from a resistant tobacco (<i>Nicotiana tabacum</i> L.) cultivar Gexin 3, a susceptible cultivar Xiaohuangjin 1025 and their reciprocal grafts were investigated. Grafting with disease-resistant rootstock could improve resistance to black shank; this is closely related to the allelopathy of root exudates. The root exudates from the resistant cultivar inhibited the growth of <i>P. nicotianae</i>, while those from the susceptible cultivar promoted the growth; the grafting varieties had intermediate properties. The root exudate composition differed among cultivars. Gexin 3 was rich in esters and fatty acids, while Xiaohuangjin 1025 contained more hydrocarbons and phenolic acids. The composition of root exudates of grafted cultivars as well as their allelopathy to <i>P. nicotianae</i> were altered, and tended to be close to the composition of cultivar used as rootstock. Eugenol, 4-tert-butylphenol, mono (2-ethylhexyl) phthalate, 4-hydroxybenzoic acid, 2,6-di-tert-butylphenol, dipropyl phthalate, and methyl myristate were identified as the main compounds contributing to inhibitory properties of root exudates. Sorbitol was suggested to play a role in disease induction. Overall, rootstock–scion interaction affected the composition of tobacco root exudates, which may be attributed to the different disease resistance among grafted plants, rootstock and scion. |
| first_indexed | 2024-03-10T14:33:14Z |
| format | Article |
| id | doaj.art-ad77de4ef1a643c990fdca3824b62724 |
| institution | Directory Open Access Journal |
| issn | 2223-7747 |
| language | English |
| last_indexed | 2024-03-10T14:33:14Z |
| publishDate | 2020-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Plants |
| spelling | doaj.art-ad77de4ef1a643c990fdca3824b627242023-11-20T22:27:10ZengMDPI AGPlants2223-77472020-11-01912165210.3390/plants9121652Rootstock-Scion Interaction Affects the Composition and Pathogen Inhibitory Activity of Tobacco (<i>Nicotiana tabacum</i> L.) Root ExudatesCheng-Sheng Zhang0Yanfen Zheng1Lijuan Peng2Jianmin Cao3Tobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao 266101, ChinaTobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao 266101, ChinaYunnan Tobacco Quality Supervision and Test Station, Kunming 650106, ChinaTobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao 266101, ChinaThe composition and allelopathy to <i>Phytophthora nicotianae</i> (the causal agent of tobacco black shank disease) of root exudates from a resistant tobacco (<i>Nicotiana tabacum</i> L.) cultivar Gexin 3, a susceptible cultivar Xiaohuangjin 1025 and their reciprocal grafts were investigated. Grafting with disease-resistant rootstock could improve resistance to black shank; this is closely related to the allelopathy of root exudates. The root exudates from the resistant cultivar inhibited the growth of <i>P. nicotianae</i>, while those from the susceptible cultivar promoted the growth; the grafting varieties had intermediate properties. The root exudate composition differed among cultivars. Gexin 3 was rich in esters and fatty acids, while Xiaohuangjin 1025 contained more hydrocarbons and phenolic acids. The composition of root exudates of grafted cultivars as well as their allelopathy to <i>P. nicotianae</i> were altered, and tended to be close to the composition of cultivar used as rootstock. Eugenol, 4-tert-butylphenol, mono (2-ethylhexyl) phthalate, 4-hydroxybenzoic acid, 2,6-di-tert-butylphenol, dipropyl phthalate, and methyl myristate were identified as the main compounds contributing to inhibitory properties of root exudates. Sorbitol was suggested to play a role in disease induction. Overall, rootstock–scion interaction affected the composition of tobacco root exudates, which may be attributed to the different disease resistance among grafted plants, rootstock and scion.https://www.mdpi.com/2223-7747/9/12/1652<i>Phytophthora nicotianae</i>allelopathydisease resistance mechanismgrafting |
| spellingShingle | Cheng-Sheng Zhang Yanfen Zheng Lijuan Peng Jianmin Cao Rootstock-Scion Interaction Affects the Composition and Pathogen Inhibitory Activity of Tobacco (<i>Nicotiana tabacum</i> L.) Root Exudates Plants <i>Phytophthora nicotianae</i> allelopathy disease resistance mechanism grafting |
| title | Rootstock-Scion Interaction Affects the Composition and Pathogen Inhibitory Activity of Tobacco (<i>Nicotiana tabacum</i> L.) Root Exudates |
| title_full | Rootstock-Scion Interaction Affects the Composition and Pathogen Inhibitory Activity of Tobacco (<i>Nicotiana tabacum</i> L.) Root Exudates |
| title_fullStr | Rootstock-Scion Interaction Affects the Composition and Pathogen Inhibitory Activity of Tobacco (<i>Nicotiana tabacum</i> L.) Root Exudates |
| title_full_unstemmed | Rootstock-Scion Interaction Affects the Composition and Pathogen Inhibitory Activity of Tobacco (<i>Nicotiana tabacum</i> L.) Root Exudates |
| title_short | Rootstock-Scion Interaction Affects the Composition and Pathogen Inhibitory Activity of Tobacco (<i>Nicotiana tabacum</i> L.) Root Exudates |
| title_sort | rootstock scion interaction affects the composition and pathogen inhibitory activity of tobacco i nicotiana tabacum i l root exudates |
| topic | <i>Phytophthora nicotianae</i> allelopathy disease resistance mechanism grafting |
| url | https://www.mdpi.com/2223-7747/9/12/1652 |
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