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Volatile cues of enhanced attractiveness to Parapanteles hyposidrae (Wilkinson) wasps mediated by jasmonic and salicylic acid pathways synergism in tea plant
Pest Management Science ( IF 3.8 ) Pub Date : 2025-01-15 , DOI: 10.1002/ps.8651
Long Jiao, Yingxin Mao, Yingjie Zhao, Lei Bian, Zongxiu Luo, Zhaoqun Li, Chunli Xiu, Nanxia Fu, Xiaoming Cai, Zongmao Chen
Pest Management Science ( IF 3.8 ) Pub Date : 2025-01-15 , DOI: 10.1002/ps.8651
Long Jiao, Yingxin Mao, Yingjie Zhao, Lei Bian, Zongxiu Luo, Zhaoqun Li, Chunli Xiu, Nanxia Fu, Xiaoming Cai, Zongmao Chen
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BACKGROUNDThe jasmonic acid (JA) and salicylic acid (SA) pathways are often thought to interact antagonistically in plants when mediating anti‐herbivore resistance. However, we previously found that the two pathways in tea plant interact synergistically when treated with 1.5 mmol/L methyl jasmonate (MeJA) and 20 mmol/L SA at 12 h intervals (MeJA+SA treatment). Here, we investigated how and why JA‐SA synergism in tea plants affected chemotaxis of Parapanteles hyposidrae (Wilkinson) wasps, the parasite of tea geometers.RESULTSWasp attractiveness of MeJA+SA‐treated plants was 1.3‐fold higher than MeJA‐treated plants, although SA‐treated plants could not attract more wasps. Five attractive compounds, including (Z )‐3‐hexenyl acetate, linalool, (E )‐4,8‐dimethyl‐1,3,7‐nonatriene (DMNT), indole and (E ,E )‐α ‐farnesene, were emitted more by MeJA+SA‐treated than MeJA‐treated plants. Based on the difference in volatiles induced by MeJA and MeJA+SA treatments, five attractive components were separately added to artificial MeJA‐induced volatiles (MV) or taken out from artificial MeJA+SA‐induced volatiles (MSV). The attractiveness of MV to wasps was enhanced when DMNT or indole was added, whereas the attractiveness of MSV decreased when DMNT, indole or linalool was taken out. When DMNT and indole were both added into MV, the attractiveness of volatile blend to wasps became similar to MSV.CONCLUSIONIncreased DMNT and indole emissions are the key cues causing volatiles mediated by JA‐SA synergism to be more attractive to P. hyposidrae wasps than those mediated by JA pathway alone. This provides new insights into the phytohormone pathway networks in tea plants and the development of natural enemy attractants. © 2025 Society of Chemical Industry.
中文翻译:
茶树中茉莉和水杨酸途径协同作用介导的对 Parapanteles hyposidrae (Wilkinson) 黄蜂吸引力增强的挥发性线索
背景茉莉酸 (JA) 和水杨酸 (SA) 途径通常被认为在介导抗食草动物抗性时在植物中相互作用。然而,我们之前发现,当间隔 12 小时用 1.5 mmol/L 茉莉酸甲酯 (MeJA) 和 20 mmol/L SA 处理(MeJA+SA 处理)时,茶树中的两种途径协同相互作用。在这里,我们研究了茶树中的 JA-SA 协同作用如何以及为什么影响茶几何学寄生虫 Parapanteles hyposidrae (Wilkinson) 黄蜂的趋化性。结果MeJA+SA 处理的植物的吸引力比 MeJA 处理的植物高 1.3 倍,尽管 SA 处理的植物不能吸引更多的黄蜂。五种有吸引力的化合物,包括 (Z)‐3-乙酸己烯酯、芳樟醇、(E)‐4,8-二甲基‐1,3,7-壬三烯 (DMNT)、吲哚和 (E,E)‐α-法呢烯,MeJA+SA 处理的植物比 MeJA 处理的植物排放更多。根据 MeJA 和 MeJA+SA 处理诱导的挥发物的差异,将 5 种有吸引力的成分分别添加到人工 MeJA 诱导的挥发物 (MV) 中或从人工 MeJA+SA 诱导的挥发物 (MSV) 中取出。当添加 DMNT 或吲哚时,MV 对黄蜂的吸引力增强,而当去除 DMNT、吲哚或芳樟醇时,MSV 的吸引力降低。当 DMNT 和吲哚都添加到 MV 中时,挥发性混合物对黄蜂的吸引力变得与 MSV 相似。结论DMNT 和吲哚释放的增加是导致 JA-SA 协同作用介导的挥发物比单独由 JA 途径介导的挥发物对 P. hyposidrae 黄蜂更具吸引力的关键线索。这为茶树中的植物激素途径网络和天敌引诱剂的发展提供了新的见解。© 2025 化工学会.
更新日期:2025-01-15
中文翻译:
![](https://scdn.x-mol.com/jcss/images/paperTranslation.png)
茶树中茉莉和水杨酸途径协同作用介导的对 Parapanteles hyposidrae (Wilkinson) 黄蜂吸引力增强的挥发性线索
背景茉莉酸 (JA) 和水杨酸 (SA) 途径通常被认为在介导抗食草动物抗性时在植物中相互作用。然而,我们之前发现,当间隔 12 小时用 1.5 mmol/L 茉莉酸甲酯 (MeJA) 和 20 mmol/L SA 处理(MeJA+SA 处理)时,茶树中的两种途径协同相互作用。在这里,我们研究了茶树中的 JA-SA 协同作用如何以及为什么影响茶几何学寄生虫 Parapanteles hyposidrae (Wilkinson) 黄蜂的趋化性。结果MeJA+SA 处理的植物的吸引力比 MeJA 处理的植物高 1.3 倍,尽管 SA 处理的植物不能吸引更多的黄蜂。五种有吸引力的化合物,包括 (Z)‐3-乙酸己烯酯、芳樟醇、(E)‐4,8-二甲基‐1,3,7-壬三烯 (DMNT)、吲哚和 (E,E)‐α-法呢烯,MeJA+SA 处理的植物比 MeJA 处理的植物排放更多。根据 MeJA 和 MeJA+SA 处理诱导的挥发物的差异,将 5 种有吸引力的成分分别添加到人工 MeJA 诱导的挥发物 (MV) 中或从人工 MeJA+SA 诱导的挥发物 (MSV) 中取出。当添加 DMNT 或吲哚时,MV 对黄蜂的吸引力增强,而当去除 DMNT、吲哚或芳樟醇时,MSV 的吸引力降低。当 DMNT 和吲哚都添加到 MV 中时,挥发性混合物对黄蜂的吸引力变得与 MSV 相似。结论DMNT 和吲哚释放的增加是导致 JA-SA 协同作用介导的挥发物比单独由 JA 途径介导的挥发物对 P. hyposidrae 黄蜂更具吸引力的关键线索。这为茶树中的植物激素途径网络和天敌引诱剂的发展提供了新的见解。© 2025 化工学会.