Plants eavesdrop on cues produced by snails and induce costly defenses that affect insect herbivores

Plants eavesdrop on cues produced by snails and induce costly defenses that affect insect herbivores
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植物窃听蜗牛发出的信号并引发影响昆虫食草动物的昂贵防御

DOI:
10.1007/s00442-018-4070-1
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发表时间:
2018
期刊:
影响因子:
2.7
通讯作者:
Gilroy, Simon
Gilroy, Simon
中科院分区:
环境科学与生态学2区
文献类型:
--
作者:
Orrock, John L.;Connolly, Brian M.;Choi, Won-Gyu;Guiden, Peter W.;Swanson, Sarah J.;Gilroy, Simon

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尽管诱导防御在植物中广泛存在,但植物对食草动物利好素(食草动物产生的独立于草食的附带化学物质)的反应程度、响应食草风险线索的成本和收益以及诱导防御的生态后果仍不清楚。我们证明,未受损的番茄(Solanum lycopersicum)会诱导对食草动物蜗牛(Helix aspersa)的利它素(运动粘液)做出反应。诱导防御对于植物来说具有显着的成本和效益:暴露于蜗牛粘液或标准防御激发子(茉莉酸甲酯,MeJA)的植物表现出较慢的生长,但也经历了较少的食草昆虫(甜菜夜蛾)的食草行为。我们还发现,来自软体动物食草动物的利它素通过植物防御的变化介导对昆虫食草动物产生有害影响,即粘液诱导的番茄防御-减少番茄的生长。埃西瓜。这些结果表明,广泛分布的综合食草动物的偶然线索可能是造成植物生长、植物防御和生物相互作用变异的机制。
Although induced defenses are widespread in plants, the degree to which plants respond to herbivore kairomones (incidental chemicals that herbivores produce independent of herbivory), the costs and benefits of responding to cues of herbivory risk, and the ecological consequences of induced defenses remain unclear. We demonstrate that undamaged tomatoes,Solanum lycopersicum, induce defenses in response to a kairomone (locomotion mucus) of snail herbivores (Helix aspersa). Induced defense had significant costs and benefits for plants: plants exposed to snail mucus or a standard defense elicitor (methyl jasmonate, MeJA) exhibited slower growth, but also experienced less herbivory by an insect herbivore (Spodoptera exigua). We also find that kairomones from molluscan herbivores lead to deleterious effects on insect herbivores mediated through changes in plant defense, i.e., mucus-induced defenses ofSolanum lycopersicum-reduced growth ofS. exigua. These results suggest that incidental cues of widespread generalist herbivores might be a mechanism creating variation in plant growth, plant defense, and biotic interactions.
非消耗性捕食者效应的感官生态学
DOI: 10.1086/676644
发表时间: 2014
期刊: The American Naturalist
影响因子: --
作者:
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通讯作者: M. C. Ferner
DOI: 10.1080/09674845.2015.11665749
发表时间: 2015-01-01
影响因子: 1.9
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水杨酸依赖性基因表达是由不同软体动物食草动物的运动粘液激活的。
DOI: 10.4161/cib.28728
发表时间: 2014
影响因子: --
作者:
Meldau S;Kästner J;von Knorre D;Baldwin IT
通讯作者: Baldwin IT
DOI: 10.1674/0003-0031-163.1.106
发表时间: 2010-01-01
影响因子: 0.6
作者:
Motheral, Sara M.;Orrock, John L.
通讯作者: Orrock, John L.
DOI: 10.1371/journal.pone.0079900
发表时间: 2013
期刊: PloS one
影响因子: 3.7
作者:
Orrock JL
通讯作者: Orrock JL