Food utilization and growth of cutworm Spodoptera litura Fabricius larvae exposed to nickel, and its effect on reproductive potential

Sun, Hong; Tang, Wen; Hai, Chen; Chen, Wei; Zhang, Min; Liu, Xin; Zhang, Gu Ren

doi:10.1016/j.chemosphere.2013.08.025

Cited by 22 publications

(10 citation statements)

References 62 publications

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“…Nickel ions exert a wide variety of adverse effects on reproduction and development, including influence on male and female subfertility or fertility, abortions, malformations and birth defects [ 29 , 30 , 31 ]. For example, Ni MPs treatment can decrease the reproductive capacity of zebra-fish and the reproduction success of the S. litura Noctuid moth [ 4 , 32 ]. Soluble nickel salts have been demonstrated to disturb mammalians and model organism reproductive functions [ 33 , 34 ].…”

Section: Introductionmentioning

confidence: 99%

Nickel Nanoparticles Exposure and Reproductive Toxicity in Healthy Adult Rats

Kong

Tang

Zhang

et al. 2014

IJMS

179

100

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Nickel is associated with reproductive toxicity. However, the reproductive toxicity of nickel nanoparticles (Ni NPs) is unclear. Our goal was to determine the association between nickel nanoparticle exposure and reproductive toxicity. According to the one-generation reproductive toxicity standard, rats were exposed to nickel nanoparticles by gavage and we selected indicators including sex hormone levels, sperm motility, histopathology, and reproductive outcome etc. Experimental results showed nickel nanoparticles increased follicle stimulating hormone (FSH) and luteinizing hormone (LH), and lowered etradiol (E2) serum levels at a dose of 15 and 45 mg/kg in female rats. Ovarian lymphocytosis, vascular dilatation and congestion, inflammatory cell infiltration, and increase in apoptotic cells were found in ovary tissues in exposure groups. For male rats, the weights decreased gradually, the ratio of epididymis weight over body weight increased, the motility of rat sperm changed, and the levels of FSH and testosterone (T) diminished. Pathological results showed the shedding of epithelial cells of raw seminiferous tubule, disordered arrangement of cells in the tube, and the appearance of cell apoptosis and death in the exposure group. At the same time, Ni NPs resulted in a change of the reproductive index and the offspring development of rats. Further research is needed to elucidate exposure to human populations and mechanism of actions.

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Section: Introductionmentioning

confidence: 99%

Nickel Nanoparticles Exposure and Reproductive Toxicity in Healthy Adult Rats

Kong

Tang

Zhang

et al. 2014

IJMS

179

100

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“…2 ), S. litura larvae apparently consumed more food while not gaining weight, which suggested a diversion of energy from biomass production to detoxification. Under sublethal conditions, the insects also adaptively responded to changes in their environment by altering detoxification and immune system responses, including changes in activities of protective and detoxifying enzymes as well as others 53 . In this work, we showed a significant increase in the activity of CAT, SOD, and GSH-ST from 5422Bt1 leaf diet compared to that of 5422 ( Fig.…”

Section: Discussionmentioning

confidence: 99%

“…The possible reason was that gene expression was not positively correlated with protein synthesis. Messenger RNAs are rapidly changed by external or internal stimuli and thereby alter the composition of the transcriptome within hours 53 . After being exposed to the 5422Bt1 kernels, ALp activity in larval midgut was significantly higher than those of 5422 treatments, while no significant difference was found between 5422 and 5422CBCL treatments.…”

Section: Discussionmentioning

confidence: 99%

“…Eggs of S. litura were provided by the Insectarium of Institute of Tropical and Subtropical Ecology, South China Agricultural University. Upon hatching, the larvae were reared on the artificial diet 53 under constant conditions of 27 °C, 65% relative humidity, and a 12 h light: 12 h dark photoperiod in a climatic cabin (MLR-350H, Sanyo Electric Biomedical Co., Ltd, Japan) until the experiments were carried out.…”

Section: Methodsmentioning

confidence: 99%

“…The insect bioassay was carried out with the 3 rd instar larvae of S. litura by feeding them an artificial diet 53 , to which different amounts of Cry1Ab toxin (Shanghai Youlong Biotech Co., Ltd., Shanghai, China) had incorporated individually. The final concentrations of Cry1Ab in diets were 0 (control), 1, 2, 12, 24, 150 and 250 μgg −1 .…”

Section: Methodsmentioning

confidence: 99%

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Responses of the cutworm Spodoptera litura (Lepidoptera: Noctuidae) to two Bt corn hybrids expressing Cry1Ab

Yinghua

Jin

et al. 2017

Sci Rep

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To examine the responses of the secondary lepidopteran pest Spodoptera litura to two Bacillus thuringiensis (Bt) corn hybrids [5422Bt1 (Event Bt11), 5422CBCL (MON810)] expressing Cry1Ab, larval bioassays with Cry1Ab toxin, corn leaves or kernels and bagging on corn plants were conducted. The results showed that larvae displayed a similar performance when fed kernels, but not leaves of 5422Bt1, 5422CBCL and their near-isogenic non-Bt corn (5422). Significantly higher Cry1Ab amounts were detected in larvae fed leaves than kernels of both Bt hybrids, with different molecular weights of protein band in plants (72 and 90 kDa for 5422Bt1 and 5422CBCL, respectively), gut contents (65 kDa), feces (50 kDa), which indicated that larvae had lower ingestion, higher degradation and excretion of Cry1Ab when fed kernels not leaves of both Bt hybrids. Significantly higher levels of cadherin-like receptors and alkaline phosphatase transcripts were detected in larvae fed leaves than kernels of two Bt hybrids. Catalase, superoxide dismutase and glutathione-S-transferase activities in larvae fed 5422Bt1 leaves were significantly higher than that of 5422 treatments. Therefore, S. litura had low susceptibility to 5422Bt1 and 5422CBCL when larvae fed kernels not leaves of Bt corn. Additionally, S. litura presented a much stronger tolerance to 5422CBCL than 5422Bt1.

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Effects of perchlorate bioaccumulation on Spodoptera litura growth and sex ratio

Qin

Shu

Li³

et al. 2016

Environ Sci Pollut Res

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Perchlorate (ClO4 (-)) pollution is widespread in the natural environment, but the effects of ClO4 (-) on the terrestrial insects are rarely studied. Here, when phytophagous insect Spodoptera litura larvae were fed on the diets with different ClO4 (-) concentrations, changes in their life-history traits were recorded; ClO4 (-) accumulations in feces and insect body were detected. The results demonstrated that ClO4 (-) bioaccumulation in insect at the different developmental stages was ranked in the order: adults > pupae > the 4th > 5th > 6th instar larvae. Besides, ClO4 (-) accumulations in the feces were ranked in the order: the 6th > 5th > 4th instar larvae. The ClO4 (-) accumulations in female pupae and adults were significantly higher than that in males. ClO4 (-) bioaccumulation in insect prolonged larval development time and caused a skewed sex ratio (the percentage of males at metamorphosis significantly decreased) under 100 to 200 mg ClO4 (-)/kg treatment. Therefore, ClO4 (-) accumulations in S. litura body presented developmental stage-, sex-specific pattern, and the sex-specific ClO4 (-) accumulations resulted in difference of sex ratio. These effects were observed at concentrations reported in natural environments contaminated with ClO4 (-), suggesting that this contaminant may pose a threat to the normal development and growth of this insect species.

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Food utilization and growth of cutworm Spodoptera litura Fabricius larvae exposed to nickel, and its effect on reproductive potential

Cited by 22 publications

References 62 publications

Nickel Nanoparticles Exposure and Reproductive Toxicity in Healthy Adult Rats

Nickel Nanoparticles Exposure and Reproductive Toxicity in Healthy Adult Rats

Responses of the cutworm Spodoptera litura (Lepidoptera: Noctuidae) to two Bt corn hybrids expressing Cry1Ab

Effects of perchlorate bioaccumulation on Spodoptera litura growth and sex ratio

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