Herbivore-induced Volatiles
Herbivore-induced Volatiles - Related Videos
10:28
Herbivore-induced Blueberry Volatiles and Intra-plant Signaling
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Cited by 3 •
2011
A push-pull method for collecting plant volatiles is described. The method allows for a comparison of volatiles induced by herbivore feeding, exogenous methyl jasmonate, and mechanical damage. This technique is also used to investigate the volatile response of undamaged branches to exposure to volatiles from herbivore-damaged branches within blueberry plants.
06:52
Characterizing Herbivore Resistance Mechanisms: Spittlebugs on Brachiaria spp. as an Example
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Cited by 11 •
2011
This video explains mechanisms of host plant resistance to herbivory and demonstrates a no-choice test that estimates the relative contributions of antibiosis and tolerance to spittlebug resistance in Brachiaria spp.
10:20
Linking Predation Risk, Herbivore Physiological Stress and Microbial Decomposition of Plant Litter
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Cited by 6 •
2013
We present methods to evaluate how predation risk can alter the chemical quality of herbivore prey by inducing dietary changes to meet demands of heightened stress, and how the decomposition of carcasses from these stressed herbivores slows subsequent plant litter decomposition by soil microbes.
02:26
Defenses Against Pathogens and Herbivores
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2025
Plants present a rich source of nutrients for many organisms, making it a target for herbivores and infectious agents. Plants, though lacking a proper immune system, have developed an array of constitutive and inducible defenses to fend off these attacks. Mechanical defenses form the first line of defense in plants. The thick barrier formed by the bark protects plants from herbivores. Hard shells, modified branches like thorns, and modified leaves like spines can also discourage herbivores...
01:10
Volatilization
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2024
Volatilization gravimetry is an analytical technique that measures the mass lost due to the volatilization of the substance. This technique is used to estimate the amount of volatile material in a sample. To perform this method, heat a known amount of the sample to a high temperature in a crucible or other suitable vessel. The volatile substance in the sample evaporates, and the vapor is completely expelled from the crucible either by heating the sample or bubbling a stream of inert gas through...
FAQs
Herbivore feeding and the associated tissue damage activate plant signaling pathways, particularly jasmonate responses. These signals stimulate plants to produce and emit characteristic blends of airborne chemicals from leaves and other organs. The resulting emissions connect local damage with broader defensive effects, including communication with organisms that influence the plant’s ecological surroundings.
Plants release characteristic combinations of volatiles, and these blends help shape several interactions at once. Their emissions can signal the presence of herbivory to predators and parasitoids, influence nearby or undamaged plant tissues, and modify relationships with microbes. Studying the blend therefore reveals how plant defense operates within a biological community rather than in isolation.
Volatile emissions from damaged tissues can prime defensive responses in nearby or undamaged parts of a plant. Priming prepares those tissues to respond to later challenges without requiring the initial feeding damage to occur everywhere. This process extends the biological significance of herbivory beyond the bite site and helps coordinate defense across different plant organs.
Herbivore-induced volatiles can attract predators and parasitoids that attack or suppress the insects feeding on a plant. This represents an indirect defensive benefit: the plant’s response influences another organism that can affect herbivore pressure. The interaction also links plant signaling to community-level relationships among plants, insects, and their natural enemies.
Research on Herbivore-induced Volatiles can clarify how plants communicate with organisms that reduce herbivore pressure. That knowledge may inform biological-control strategies by identifying plant signals associated with predator and parasitoid attraction. It also contributes to more sustainable crop protection because it focuses on ecological interactions and plant defense rather than only on direct herbivore removal.
These emissions can alter interactions between plants and microbes while also reshaping relationships among plants and insects. Because multiple organisms respond to the same herbivory-related signals, the system provides a useful context for studying ecological communication and coevolution. In biology, this perspective helps explain how defensive traits develop within interconnected biological communities.