Abstract：
BACKGROUND: Over the course of evolution, plants have developed various sophisticated defense mechanisms to resist pests and diseases. The phytohormone abscisic acid (ABA) has an important role in the growth and development of plants and confers tolerance to selected abiotic stressors, such as drought. Previous studies have shown that ABA promotes the deposit of callose in response to piercing/sucking insect pests. The English grain aphid, Sitobion avenae Fabricius, causes huge losses in rice and is especially harmful to rice seedlings.
RESULTS: Exogenous ABA promoted growth and reduced the feeding behavior of S. avenae nymphs in rice. Our results suggested that enhanced trichome density and increased expression of related genes may be associated with rice resistance to aphids. An analysis of volatiles revealed the production of seven compounds associated with pest resistance.
CONCLUSIONS: These results indicate that ABA reduces aphid feeding in rice. Our findings provide a basis for understanding ABA-mediated defense responses in rice and provide insights on more environmentally-friendly approaches to control. © 2024 Society of Chemical Industry.
RESULTS: Exogenous ABA promoted growth and reduced the feeding behavior of S. avenae nymphs in rice. Our results suggested that enhanced trichome density and increased expression of related genes may be associated with rice resistance to aphids. An analysis of volatiles revealed the production of seven compounds associated with pest resistance.
CONCLUSIONS: These results indicate that ABA reduces aphid feeding in rice. Our findings provide a basis for understanding ABA-mediated defense responses in rice and provide insights on more environmentally-friendly approaches to control. © 2024 Society of Chemical Industry.
摘要：
背景：在进化过程中，植物已经开发出各种复杂的防御机制来抵抗病虫害。植物激素脱落酸（ABA）在植物的生长和发育中具有重要作用，并赋予对选定的非生物胁迫的耐受性，比如干旱。先前的研究表明，ABA会促进call的沉积，以应对刺穿/吸吮害虫。英国谷物蚜虫，法布里修斯，造成水稻的巨大损失，尤其对水稻幼苗有害。
结果：外源ABA促进了水稻若虫的生长，降低了水稻的摄食行为。我们的结果表明，毛状体密度的增加和相关基因表达的增加可能与水稻对蚜虫的抗性有关。对挥发物的分析表明，产生了与害虫抗性相关的七种化合物。
结论：这些结果表明ABA降低了水稻中蚜虫的摄食。我们的发现为理解水稻中ABA介导的防御反应提供了基础，并为更环保的控制方法提供了见解。©2024化学工业学会。
结果：外源ABA促进了水稻若虫的生长，降低了水稻的摄食行为。我们的结果表明，毛状体密度的增加和相关基因表达的增加可能与水稻对蚜虫的抗性有关。对挥发物的分析表明，产生了与害虫抗性相关的七种化合物。
结论：这些结果表明ABA降低了水稻中蚜虫的摄食。我们的发现为理解水稻中ABA介导的防御反应提供了基础，并为更环保的控制方法提供了见解。©2024化学工业学会。
