Deposition of α-pinene oxidation products on plant surfaces affects plant VOC emission and herbivore feeding and oviposition

Mofikoya, Adedayo O.; Yli‐Pirilä, Pasi; Kivimäenpää, Minna; Blande, James D.; Virtanen, Annele; Holopainen, Jarmo K.

doi:10.1016/j.envpol.2020.114437

Cited by 16 publications

(12 citation statements)

References 86 publications

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“…According to this hypothesis, plants employ atmospheric terpenes and their antibiotic properties for their own defense. The receiver plants can adsorb beneficial terpenes or terpene oxidation products and either store them in epidermal cells or release them slowly to the environment (Camacho‐Coronel et al., 2020; Mofikoya et al., 2017, 2020). This phenomenon was observed in birch ( Betula ) (Himanen et al., 2010), broccoli ( Brassica oleracea var.…”

Section: How Plants ‘Sense’mentioning

confidence: 99%

“…Especially in highly polluted areas, degradation of the original bioactive compounds may affect the ability of VOCs to convey information transfer. Terpene‐mediated plant–insect interaction has been shown to be altered in high ozone concentrations (Mofikoya et al., 2020), the reaction products potentially being repellant instead of attractive for insects (Li and Blande, 2015; Mofikoya et al., 2020). Similarly, Blande and colleagues revealed that lima bean plant‐to‐plant signaling, i.e., VOC‐mediated induction of extrafloral nectar production in neighboring plants, was disturbed in an ozone‐rich atmosphere.…”

Section: Transmitting Information Through the Airmentioning

confidence: 99%

“…Also, the VOC‐mediated priming between infested and uninfested cabbage ( Brassica oleracea ) plants was impaired under elevated ozone concentrations in the field (Giron‐Calva et al., 2017). To tackle this problem, receivers might adapt and learn to perceive VOC reaction products (Mofikoya et al., 2020; Simpraga et al., 2016). Especially in polluted atmospheres, reaction products, such as oxygenated terpenes, might theoretically function as signals.…”

Section: Transmitting Information Through the Airmentioning

confidence: 99%

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Volatile terpenes – mediators of plant‐to‐plant communication

et al. 2021

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Plants interact with other organisms employing volatile organic compounds (VOCs). The largest group of plant-released VOCs are terpenes, comprised of isoprene, monoterpenes, and sesquiterpenes. Mono-and sesquiterpenes are well-known communication compounds in plant-insect interactions, whereas the smallest, most commonly emitted terpene, isoprene, is rather assigned a function in combating abiotic stresses. Recently, it has become evident that different volatile terpenes also act as plant-to-plant signaling cues. Upon being perceived, specific volatile terpenes can sensitize distinct signaling pathways in receiver plant cells, which in turn trigger plant innate immune responses. This vastly extends the range of action of volatile terpenes, which not only protect plants from various biotic and abiotic stresses, but also convey information about environmental constraints within and between plants. As a result, plant-insect and plant-pathogen interactions, which are believed to influence each other through phytohormone crosstalk, are likely equally sensitive to reciprocal regulation via volatile terpene cues. Here, we review the current knowledge of terpenes as volatile semiochemicals and discuss why and how volatile terpenes make good signaling cues. We discuss how volatile terpenes may be perceived by plants, what are possible downstream signaling events in receiver plants, and how responses to different terpene cues might interact to orchestrate the net plant response to multiple stresses. Finally, we discuss how the signal can be further transmitted to the community level leading to a mutually beneficial community-scale response or distinct signaling with near kin.

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Section: How Plants ‘Sense’mentioning

confidence: 99%

Section: Transmitting Information Through the Airmentioning

confidence: 99%

Section: Transmitting Information Through the Airmentioning

confidence: 99%

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Volatile terpenes – mediators of plant‐to‐plant communication

et al. 2021

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“…The products of these reactions can be redeposited on plants and could affect plants communication with their environment and atmospheric quality. A recent study showed that α-pinene's oxidation products are deposited on plants and re-emitted, affecting plants acceptability to herbivores (Mofikoya et al, 2020). This research area requires further investigation to increase our knowledge of the impact of climate-induced emissions on plant-plant, plant-insect, and plant-microbe interactions, especially in vulnerable and threatened native ecosystems.…”

Section: Conclusion and Potential Ecological Impactsmentioning

confidence: 99%

Seasonal Volatile Emission Patterns of the Endemic New Zealand Shrub Dracophyllum subulatum on the North Island Central Plateau

et al. 2021

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Volatile organic compounds (VOCs) produced by plants are essential indicators of their physiological response to environmental conditions. But evidence of natural variation in VOC emissions and their contributing factors is still limited, especially for non-cultivated species. Here we explored the natural volatile emissions of Dracophyllum subulatum Hook.f., an endemic shrub to the North Island Central Plateau of New Zealand, and determined some environmental factors driving the plant’s emissions. Volatile emissions of D. subulatum were measured on four separate occasions from December 2017 to September 2018 using the “push-pull” headspace sampling technique and analyzed using gas chromatography-mass spectrometry (GC-MS). D. subulatum was classified based on the volatiles measured on each sampling occasion using linear discriminant analysis (LDA). On each sampling occasion, we also recorded and compared ambient air temperature, herbivory damage, total soil nitrogen (N), available phosphorus (P), potassium (K), and soil moisture content. The relationship between environmental variables that differed significantly between sampling occasions and volatile emissions were estimated using generalized linear models (GLMs). Based on VOCs measured on each sampling occasion, we were able to distinguish different chemical profiles. Overall, we found that total emission and the relative proportions of all major chemical classes released by D. subulatum were significantly higher during summer. The GLMs reveal that differences in environmental factors between the four sampling occasions are highly associated with changing emissions. Higher temperatures in summer had a consistently strong positive relationship with emissions, while the impacts of soil moisture content, P and K were variable and depended on the chemical class. These results are discussed, particularly how high temperature (warming) may shape volatile emissions and plants’ ecology.

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“…An alternative explanation for the observed resistance of plants exposed to damage-induced plant volatiles (DIPVs) is through the passive adsorption of defensive volatiles, thereby conferring volatile-mediated associational resistance [sensu (Himanen et al 2010 , 2015 )], also referred to as environmentally acquired chemical camouflage (Kessler and Kalske 2018 ). Recent work has demonstrated that plants can adsorb exogenous VOCs and reemit them into the atmosphere (Niinemets et al 2014 ; Li and Blande 2015 ) or sequester VOCs in their waxy cuticle (Camacho-Coronel et al 2020 ; Mofikoya et al 2020 ), leading to decreased herbivory (Li and Blande 2015 ; Mofikoya et al 2020 ), disease (Camacho-Coronel et al 2020 ) and disruption of host-location by parasitoids (Bui et al 2021 ). The stronger resistance response after exposure to damaged kin that share the same chemotype could be explained by dose-dependent response by herbivores to passively acquired repellent or toxic VOCs.…”

Section: Introductionmentioning

confidence: 99%

Volatile-Mediated Induced and Passively Acquired Resistance in Sagebrush (Artemisia tridentata)

et al. 2022

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Plants produce a diversity of secondary metabolites including volatile organic compounds. Some species show discrete variation in these volatile compounds such that individuals within a population can be grouped into distinct chemotypes. A few studies reported that volatile-mediated induced resistance is more effective between plants belonging to the same chemotype and that chemotypes are heritable. The authors concluded that the ability of plants to differentially respond to cues from related individuals that share the same chemotype is a form of kin recognition. These studies assumed plants were actively responding but did not test the mechanism of resistance. A similar result was possible through the passive adsorption and reemission of repellent or toxic VOCs by plants exposed to damage-induced plant volatiles (DIPVs). Here we conducted exposure experiments with five chemotypes of sagebrush in growth chambers; undamaged receiver plants were exposed to either filtered air or DIPVs from mechanically wounded branches. Receiver plants exposed to DIPVs experienced less herbivore damage, which was correlated with increased expression of genes involved in plant defense as well as increased emission of repellent VOCs. Plants belonging to two of the five chemotypes exhibited stronger resistance when exposed to DIPVs from plants of the same chemotypes compared to when DIPVs were from plants of a different chemotype. Moreover, some plants passively absorbed DIPVs and reemitted them, potentially conferring associational resistance. These findings support previous work demonstrating that sagebrush plants actively responded to alarm cues and that the strength of their response was dependent on the chemotypes of the plants involved. This study provides further support for kin recognition in plants but also identified volatile-mediated associational resistance as a passively acquired additional defense mechanism in sagebrush.

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Deposition of α-pinene oxidation products on plant surfaces affects plant VOC emission and herbivore feeding and oviposition

Cited by 16 publications

References 86 publications

Volatile terpenes – mediators of plant‐to‐plant communication

Volatile terpenes – mediators of plant‐to‐plant communication

Seasonal Volatile Emission Patterns of the Endemic New Zealand Shrub Dracophyllum subulatum on the North Island Central Plateau

Volatile-Mediated Induced and Passively Acquired Resistance in Sagebrush (Artemisia tridentata)

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