Mines over matter: Effects of foliar particulate matter on the herbivorous insect, <i>Helicoverpa armigera</i>

Vanderstock, Amelie M.; Latty, Tanya; Leonard, Ryan J.; Hochuli, Dieter F.

doi:10.1111/jen.12560

Cited by 11 publications

(5 citation statements)

References 60 publications

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“…Late-instar larvae of the cotton bollworm Helicoverpa armigera showed higher mortality rates when feeding on leaves laden with coal dust that was obtained by milling coal from a coal mine. In contrast to late-instar larvae that did not adjust their feeding behavior, early instars avoided feeding on coal dusted leaf material [91]. Artificial haze smoke (mimicking haze from forest fires) was also shown to increase mortality in lepidopteran larvae.…”

Section: Airborne Fine Particulate Mattermentioning

confidence: 97%

“…Also, other herbivorous insects serving as prey for social wasps may accumulate these pollutants, which may result in the increased exposure of these predatory wasps to heavy metals [35,36,47,63,65,[68][69][70][71][72][73][74][75][76][77][78][79][80]. Pesticides (or their residues) and heavy metals, as well as other pollutants from combustion, traffic, agriculture, and coal mining, can also form or bind to fine particulate matter [66,[81][82][83][84][85][86][87][88][89][90][91] that pollutes the air. Eventually, fine particulate matter settles on surfaces, such as insect cuticles [88,89] or flowers [92] (Figure 2).…”

Section: Major Classes Of Pollutants Threatening Social Insectsmentioning

confidence: 99%

“…Insects are likely to ingest fine particulate matter via their food, as it may either be in the nectar or have settled on other surfaces such as plant material [86,87,91,92]. In social insects and especially honeybees, the collection of fine particulate matter during foraging translates into an accumulation of xenobiotics in honey and beebread.…”

Section: Airborne Fine Particulate Mattermentioning

confidence: 99%

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Pollutants and Their Interaction with Diseases of Social Hymenoptera

Feldhaar

Otti

2020

Insects

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Many insect species, including social insects, are currently declining in abundance and diversity. Pollutants such as pesticides, heavy metals, or airborne fine particulate matter from agricultural and industrial sources are among the factors driving this decline. While these pollutants can have direct detrimental effects, they can also result in negative interactive effects when social insects are simultaneously exposed to multiple stressors. For example, sublethal effects of pollutants can increase the disease susceptibility of social insects, and thereby jeopardize their survival. Here we review how pesticides, heavy metals, or airborne fine particulate matter interact with social insect physiology and especially the insects’ immune system. We then give an overview of the current knowledge of the interactive effects of these pollutants with pathogens or parasites. While the effects of pesticide exposure on social insects and their interactions with pathogens have been relatively well studied, the effects of other pollutants, such as heavy metals in soil or fine particulate matter from combustion, vehicular transport, agriculture, and coal mining are still largely unknown. We therefore provide an overview of urgently needed knowledge in order to mitigate the decline of social insects.

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Section: Airborne Fine Particulate Mattermentioning

confidence: 97%

Section: Major Classes Of Pollutants Threatening Social Insectsmentioning

confidence: 99%

Section: Airborne Fine Particulate Mattermentioning

confidence: 99%

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Pollutants and Their Interaction with Diseases of Social Hymenoptera

Feldhaar

Otti

2020

Insects

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“…Even heavy dust cover led to individual death due to extreme suppression of photosynthesis [ 6 , 9 ]. Moreover, dust accumulation on the leaf surface indirectly causes secondary stresses, such as drought or pathogen attack [ 10 , 11 ]. The effects of dust accumulation on leaf surfaces include a series of direct and indirect consequences.…”

Section: Introductionmentioning

confidence: 99%

Similar effects as shade tolerance induced by dust accumulation and size penetration of particulates on cotton leaves

2021

BMC Plant Biol

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Background Dust accumulation covers the leaf’s surface and influences foliar physiological activity. Two independent experiments were carried out to instigate the foliar responses to dust accumulation and the penetration limitation of small dust particles (< 1 μm) on the foliar surface, respectively. In experiment I, three dust accumulation intensities were achieved by a dust spraying treatment. Photosynthesis CO2 exchange and fast chlorophyll fluorescence transient were measured, as well as chlorophyll contents and leaf thickness. In experiment II, the penetration limits of small particulates on the leaf surface were examined by feeding nano-fluorescent microspheres. Results Dust accumulation alleviated the photoinhibition of Photosystem II and decreased photosynthesis, as represented by net photosynthetic rates (PN) and stomatal conductance to water vapor (gs). Photosynthetic response curves between net photosynthetic rate (PN) and photosynthetically active radiation (PAR) showed that heavy dust accumulation (34.98 ± 2.6 mg cm− 2) increased the light compensation point (LCP) and light saturation point (LSP) and decreased photosynthesis rates under saturating light (PNmax). Leaves became thin due to the lack of a palisade layer while chlorophyll content increased under dust accumulation. Confocal laser scanning microscopy (CLSM) images showed that the larger particles (1 μm) distributed in the regions below the stomata and the smaller ones (0.1 μm) were detected in the wider areas below stomata. Conclusions These results suggested that dust accumulation induced similar effects as shade tolerance in cotton leaves but did not trigger more photochemical acclimation to low light. Dust particles (< 1 μm) penetrated leaf surface through stomata.

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“…Moreover, dust accumulation on the leaf surface indirectly causes secondary stresses, such as drought or pathogen attack [10,11]. The effects of dust accumulation on leaf surfaces include a series of direct and indirect consequences.…”

Section: Introductionmentioning

confidence: 99%

Similar effects as shade tolerance induced by dust accumulation and size penetration of particulates on cotton leaves

2020

Preprint

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Background: Dust accumulation covers the leaf’s surface and influences foliar physiological activity. Two independent experiments were carried out to instigate the foliar responses to dust accumulation and the penetration limitation of small dust particles (<1 μm) on the foliar surface, respectively. In experiment I, three dust accumulation intensities were achieved by a dust spraying treatment. Photosynthesis CO2 exchange and fast chlorophyll fluorescence transient were measured, as well as chlorophyll contents and leaf thickness. In experiment II, the penetration limits of small particulates on the leaf surface were examined by feeding nano-fluorescent microspheres. Results: Dust accumulation alleviated the photoinhibition of Photosystem II and decreased photosynthesis, as represented by net photosynthetic rates (PN) and stomatal conductance to water vapor (gs). Photosynthetic response curves between net photosynthetic rate (PN) and photosynthetically active radiation (PAR) showed that heavy dust accumulation (34.98 ± 2.6 mg cm-2) increased the light compensation point (LCP) and light saturation point (LSP) and decreased photosynthesis rates under saturating light (PNmax). Leaves became thin due to the lack of a palisade layer while chlorophyll content increased under dust accumulation. Confocal laser scanning microscopy (CLSM) images showed that the larger particles (1 μm) distributed in the regions below the stomata and the smaller ones (0.1 μm) were detected in the wider areas below stomata. Conclusions: These results suggested that dust accumulation induced similar effects as shade tolerance in cotton leaves but did not trigger more photochemical acclimation to low light. Dust particles (<1 μm) penetrated leaf surface through stomata.

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Mines over matter: Effects of foliar particulate matter on the herbivorous insect, Helicoverpa armigera

Cited by 11 publications

References 60 publications

Pollutants and Their Interaction with Diseases of Social Hymenoptera

Pollutants and Their Interaction with Diseases of Social Hymenoptera

Similar effects as shade tolerance induced by dust accumulation and size penetration of particulates on cotton leaves

Similar effects as shade tolerance induced by dust accumulation and size penetration of particulates on cotton leaves

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