Seasonal changes in the deleterious effects of solar ultraviolet-B radiation on eggs of the twospotted spider mite, Tetranychus urticae (Acari: Tetranychidae)

Sakai, Yuta; Sudo, Masaharu; Osakabe, Masahiro

doi:10.1007/s13355-011-0090-6

Cited by 38 publications

(27 citation statements)

References 29 publications

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“…A similar idea about location mitigating deleterious effects of UV exposure has recently been found for multiple species of mites (Ohtsuka and Osakabe 2009;Onzo et al 2010;Sakai et al 2012). In each of these studies, UV- Fig.…”

Section: Discussionsupporting

confidence: 60%

Density and distribution of soybean aphid, Aphis glycines Matsumura (Hemiptera: Aphididae) in response to UV radiation

2015

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Increasing ultraviolet radiation (UV) has led to greater interest in its current and potential effects on organisms, including herbivorous insects. Here we report the short-term effects of UV on soybean aphids (Aphis glycines Matsumura), a common phytophagous pest of soybeans. We used two complementary approaches to examine how modifying UV radiation affects this phloemfeeding herbivore via changes to soybean aphid densities and their within plant distribution. We found that artificially adding UV in a lab setting decreased soybean aphid population size compared to a low UV control; however, blocking UV radiation in the field had minimal effects on aphid density. Further observations suggest that soybean aphid location could mediate UV effects; feeding on the underside of leaves may shield aphids from some harmful effects of UV. Our results demonstrate the potential importance of UV to insect herbivores and how behavior may influence such effects.

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Section: Discussionsupporting

confidence: 60%

Density and distribution of soybean aphid, Aphis glycines Matsumura (Hemiptera: Aphididae) in response to UV radiation

2015

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“…However, the hatchability of P. citri eggs on sunny leaves during spring and summer (59.5–89.0%) has been found to be much higher than that of T. urticae eggs (10–55%) reported by Sakai et al . . Our dose–response experiment also revealed the UVB resistance of P. citri eggs compared with those of T. urticae .…”

Section: Discussionsupporting

confidence: 57%

Tolerance to Solar Ultraviolet‐B Radiation in the Citrus Red Mite, An Upper Surface User of Host Plant Leaves

Fukaya

Uesugi

Ohashi

et al. 2012

Photochem & Photobiology

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Plant-dwelling mites are potentially exposed to solar ultraviolet-B (UVB) radiation that causes deleterious and often lethal effects, leading most mites to inhabit the lower (underside) leaf surfaces. However, in species of spider mite belonging to the Genus Panonychus, a substantial portion of individuals occur on upper leaf surfaces. We investigated whether the upper leaf surfaces of citrus trees are favorable for P. citri, and to what extent they are tolerant to UVB radiation. If eggs are not adequately protected from UVB damage, females may avoid ovipositing on the upper surfaces of sunny leaves. To test this, we conducted laboratory experiments using a UVB lamp, and semioutdoor manipulative experiments. As a result, P. citri eggs are tolerant to UVB. Field studies revealed that the ratio of eggs and adult females on upper leaf surfaces were larger for shaded than for sunny leaves. However, 64-89% of eggs hatched successfully even on sunny upper leaf surfaces. Nutritional evaluation revealed that whether on sunny or shaded leaves, in fecundity and juvenile development P. citri reaped the fitness benefits of upper leaf surfaces. Consequently, P. citri is tolerant to UVB damage, and inhabiting the upper surfaces of shaded leaves is advantageous to this mite.

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“…UV‐B‐induced damaged was also confirmed in small organisms such as mites, springtails, and thrips. In certain doses (higher than the one used by us) UV‐B prompted mortality and escape and inhibited oviposition (Mazza et al ., ; Caldwell et al ., ; Suzuki et al ., ; Sakai et al ., ). Furthermore, in Lepidopteran larvae (e.g., Operophtera brumata ), all measures of the performance of the animal–survival, fecundity, growth were reduced under enhanced UV‐B (Buck & Callaghan, ).…”

Section: Discussionmentioning

confidence: 97%

Enhanced UV‐B radiation during pupal stage reduce body mass and fat content, while increasing deformities, mortality and cell death in female adults of solitary bee Osmia bicornis

Wasielewski¹,

Wojciechowicz

Giejdasz³

et al. 2014

Insect Science

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The effects of enhanced UV-B radiation on the oogenesis and morpho-anatomical characteristics of the European solitary red mason bee Osmia bicornis L. (Hymenoptera: Megachilidae) were tested under laboratory conditions. Cocooned females in the pupal stage were exposed directly to different doses (0, 9.24, 12.32, and 24.64 kJ/m(2) /d) of artificial UV-B. Our experiments revealed that enhanced UV-B radiation can reduce body mass and fat body content, cause deformities and increase mortality. Following UV exposure at all 3 different doses, the body mass of bees was all significantly reduced compared to the control, with the highest UV dose causing the largest reduction. Similarly, following UV-B radiation, in treated groups the fat body index decreased and the fat body index was the lowest in the group receiving the highest dose of UV radiation. Mortality and morphological deformities, between untreated and exposed females varied considerably and increased with the dose of UV-B radiation. Morphological deformities were mainly manifested in the wings and mouthparts, and occurred more frequently with an increased dose of UV. Cell death was quantified by the Terminal deoxynucleotidyl transferase dUTP nick end labeling (TUNEL) assay (DNA fragmentation) during early stages of oogenesis of O. bicornis females. The bees, after UV-B exposure exhibited more germarium cells with fragmented DNA. The TUNEL test indicated that in germarium, low doses of UV-B poorly induced the cell death during early development. However, exposure to moderate UV-B dose increased programmed cell death. In females treated with the highest dose of UV-B the vast majority of germarium cells were TUNEL-positive.

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Seasonal changes in the deleterious effects of solar ultraviolet-B radiation on eggs of the twospotted spider mite, Tetranychus urticae (Acari: Tetranychidae)

Cited by 38 publications

References 29 publications

Density and distribution of soybean aphid, Aphis glycines Matsumura (Hemiptera: Aphididae) in response to UV radiation

Density and distribution of soybean aphid, Aphis glycines Matsumura (Hemiptera: Aphididae) in response to UV radiation

Tolerance to Solar Ultraviolet‐B Radiation in the Citrus Red Mite, An Upper Surface User of Host Plant Leaves

Enhanced UV‐B radiation during pupal stage reduce body mass and fat content, while increasing deformities, mortality and cell death in female adults of solitary bee Osmia bicornis

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