Ethylene-mediated resistance to bacterial canker in kiwifruit is suppressed by cool temperature
Ambient temperature affects the occurrence and prevalence of plant disease. Most bacterial diseases are damaging at high temperatures. However, kiwifruit bacterial canker caused by Pseudomonas syringae pv. actinidiae (Psa) has been found to be prevalent at relatively cool temperatures, and it is unc...
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| Format: | Article |
| Language: | English |
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KeAi Communications Co., Ltd.
2025-07-01
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| Series: | Horticultural Plant Journal |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2468014124001237 |
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| author | Zhiran Wu Qianqian Dang Shuni Ouyang Wei Liu Lili Huang |
| author_facet | Zhiran Wu Qianqian Dang Shuni Ouyang Wei Liu Lili Huang |
| author_sort | Zhiran Wu |
| collection | DOAJ |
| description | Ambient temperature affects the occurrence and prevalence of plant disease. Most bacterial diseases are damaging at high temperatures. However, kiwifruit bacterial canker caused by Pseudomonas syringae pv. actinidiae (Psa) has been found to be prevalent at relatively cool temperatures, and it is unclear how ambient temperature affects the development of kiwifruit bacterial canker. In this study, basal resistance to Psa was suppressed in kiwifruit at cool growth temperature (16 °C) compared with at normal temperature (24 °C). In addition, RNA sequence analysis and ethylene content assessment indicated that ethylene modulated kiwifruit resistance to Psa at normal growth temperature and that cool temperature inhibited ethylene accumulation and Psa-induced activation of the ethylene signaling pathway in kiwifruit. Virus-mediated silencing of the kiwifruit ethylene signaling gene AcEIN2 suppressed kiwifruit resistance to Psa at normal growth temperature. Exogenous application of ethylene inhibitor 1-methylcyclopropene eliminated the difference in kiwifruit resistance to Psa at 16 and 24 °C. Exogenous application of ethylene analogues ethephon induced resistance to Psa in kiwifruit. In conclusion, cool temperatures impair basal resistance to Psa by reducing the activation of ethylene biosynthesis and signaling in kiwifruit. The results provide clues for new strategies to control plant diseases in a context of global environmental change. |
| format | Article |
| id | doaj-art-43bd0d62c85f4f6faa1f1e6a1cd5dfd4 |
| institution | Matheson Library |
| issn | 2468-0141 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | Horticultural Plant Journal |
| spelling | doaj-art-43bd0d62c85f4f6faa1f1e6a1cd5dfd42025-07-09T04:32:37ZengKeAi Communications Co., Ltd.Horticultural Plant Journal2468-01412025-07-0111415171528Ethylene-mediated resistance to bacterial canker in kiwifruit is suppressed by cool temperatureZhiran Wu0Qianqian Dang1Shuni Ouyang2Wei Liu3Lili Huang4State Key Laboratory for Crop Stress Resistance and High-Efficiency Production, College of Plant Protection, Northwest A & F University, Yangling, Shaanxi 712100, ChinaState Key Laboratory for Crop Stress Resistance and High-Efficiency Production, College of Plant Protection, Northwest A & F University, Yangling, Shaanxi 712100, ChinaState Key Laboratory for Crop Stress Resistance and High-Efficiency Production, College of Plant Protection, Northwest A & F University, Yangling, Shaanxi 712100, ChinaState Key Laboratory for Crop Stress Resistance and High-Efficiency Production, College of Plant Protection, Northwest A & F University, Yangling, Shaanxi 712100, ChinaCorresponding author.; State Key Laboratory for Crop Stress Resistance and High-Efficiency Production, College of Plant Protection, Northwest A & F University, Yangling, Shaanxi 712100, ChinaAmbient temperature affects the occurrence and prevalence of plant disease. Most bacterial diseases are damaging at high temperatures. However, kiwifruit bacterial canker caused by Pseudomonas syringae pv. actinidiae (Psa) has been found to be prevalent at relatively cool temperatures, and it is unclear how ambient temperature affects the development of kiwifruit bacterial canker. In this study, basal resistance to Psa was suppressed in kiwifruit at cool growth temperature (16 °C) compared with at normal temperature (24 °C). In addition, RNA sequence analysis and ethylene content assessment indicated that ethylene modulated kiwifruit resistance to Psa at normal growth temperature and that cool temperature inhibited ethylene accumulation and Psa-induced activation of the ethylene signaling pathway in kiwifruit. Virus-mediated silencing of the kiwifruit ethylene signaling gene AcEIN2 suppressed kiwifruit resistance to Psa at normal growth temperature. Exogenous application of ethylene inhibitor 1-methylcyclopropene eliminated the difference in kiwifruit resistance to Psa at 16 and 24 °C. Exogenous application of ethylene analogues ethephon induced resistance to Psa in kiwifruit. In conclusion, cool temperatures impair basal resistance to Psa by reducing the activation of ethylene biosynthesis and signaling in kiwifruit. The results provide clues for new strategies to control plant diseases in a context of global environmental change.http://www.sciencedirect.com/science/article/pii/S2468014124001237KiwifruitEthylene signalingEIN2Bacterial cankerPlant resistanceTemperature |
| spellingShingle | Zhiran Wu Qianqian Dang Shuni Ouyang Wei Liu Lili Huang Ethylene-mediated resistance to bacterial canker in kiwifruit is suppressed by cool temperature Horticultural Plant Journal Kiwifruit Ethylene signaling EIN2 Bacterial canker Plant resistance Temperature |
| title | Ethylene-mediated resistance to bacterial canker in kiwifruit is suppressed by cool temperature |
| title_full | Ethylene-mediated resistance to bacterial canker in kiwifruit is suppressed by cool temperature |
| title_fullStr | Ethylene-mediated resistance to bacterial canker in kiwifruit is suppressed by cool temperature |
| title_full_unstemmed | Ethylene-mediated resistance to bacterial canker in kiwifruit is suppressed by cool temperature |
| title_short | Ethylene-mediated resistance to bacterial canker in kiwifruit is suppressed by cool temperature |
| title_sort | ethylene mediated resistance to bacterial canker in kiwifruit is suppressed by cool temperature |
| topic | Kiwifruit Ethylene signaling EIN2 Bacterial canker Plant resistance Temperature |
| url | http://www.sciencedirect.com/science/article/pii/S2468014124001237 |
| work_keys_str_mv | AT zhiranwu ethylenemediatedresistancetobacterialcankerinkiwifruitissuppressedbycooltemperature AT qianqiandang ethylenemediatedresistancetobacterialcankerinkiwifruitissuppressedbycooltemperature AT shuniouyang ethylenemediatedresistancetobacterialcankerinkiwifruitissuppressedbycooltemperature AT weiliu ethylenemediatedresistancetobacterialcankerinkiwifruitissuppressedbycooltemperature AT lilihuang ethylenemediatedresistancetobacterialcankerinkiwifruitissuppressedbycooltemperature |