A Single Hot Event Stimulates Adult Performance but Reduces Egg Survival in the Oriental Fruit Moth, Grapholitha molesta

Liang, Linhui; Zhang, Wei; Ma, Gang; Hoffmann, Ary A.; Ma, Chun‐Sen

doi:10.1371/journal.pone.0116339

Cited by 37 publications

(22 citation statements)

References 55 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…melanogaster males (exposure of adults to 34 °C for 3 h) 63 , parasitoids, such as females of the wasp A . avenae (exposure of adults to 36 °C for 1 h) 35 , and the oriental fruit moth, Grapholita molesta (exposure of adults to 38 °C for 4 h) 64 . In our study, there was no obvious change trend in adult O .…”

Section: Discussionmentioning

confidence: 99%

Effect of short-term high-temperature exposure on the life history parameters of Ophraella communa

Chen

Zheng

Luo

et al. 2018

Sci Rep

View full text Add to dashboard Cite

Extreme heat in summer is frequent in parts of China, and this likely affects the fitness of the beetle Ophraella communa, a biological control agent of invasive common ragweed. Here, we assessed the life history parameters of O. communa when its different developmental stages were exposed to high temperatures (40, 42 and 44 °C, with 28 °C as a control) for 3 h each day for 3, 5, 5, and 5 days, respectively (by stage). The larval stage was the most sensitive stage, with the lowest survival rate under heat stress. Egg and pupal survival significantly decreased only at 44 °C, and these two stages showed relative heat tolerance, while the adult stage was the most tolerant stage, with the highest survival rates. High temperatures showed positive effects on the female proportion, but there was no stage-specific response. Treated adults showed the highest fecundity under heat stress and a similar adult lifespan to that in the control. High temperatures decreased the F1 egg hatching rate, but the differences among stages were not significant. Negative carry-over effects of heat stress on subsequent stages and progenies’ survival were also observed. Overall, heat effects depend on the temperature and life stage, and the adult stage was the most tolerant stage. Ophraella communa possesses a degree of heat tolerance that allows it to survive on hot days in summer.

show abstract

Section: Discussionmentioning

confidence: 99%

Effect of short-term high-temperature exposure on the life history parameters of Ophraella communa

Chen

Zheng

Luo

et al. 2018

Sci Rep

View full text Add to dashboard Cite

show abstract

“…Zinc is essential to a wide variety of transcription factors and it promotes or inhibits protein synthesis. It has antioxidant properties and it is well known to protect against Cd toxicity, notably by decreasing cellular accumulation of Cd and by modulating cell stress response to Cd . However Zn may also induce oxidative injuries and trigger signaling cascades that are detrimental to cell survival .…”

Section: Introductionmentioning

confidence: 99%

Zinc interference with Cd‐induced hormetic effect in differentiated Caco‐2 cells: Evidence for inhibition downstream ERK activation

Lemaire

Mireault

Jumarie

2019

J Biochem & Molecular Tox

View full text Add to dashboard Cite

Cadmium (Cd) is a toxic metal that enters the food chain. Following oral ingestion, the intestinal epithelium represents an effective protective barrier against Cd toxicity, but it is also a target tissue that may accumulate and trap high levels of the ingested metal. Using human enterocytic‐like Caco‐2 cells, we have previously shown that Cd may induce a concentration and time‐dependent increase in 3‐(4,5‐dimethyl‐2‐thiazol‐2‐yl)‐2,5‐diphenyltetrazolium bromide assay (MTT)‐reducing activity in differentiated cultures with correlation to ERK1/2 activation. The present study shows that (a) Zn prevents the Cd‐induced hormesis effect on MTT reduction in a concentration‐dependent manner, without inhibiting Cd‐induced ERK1/2 activation; (b) Zn also induces similar hormetic stimulation of MTT‐reducing activity but without ERK1/2 activation. The effect of both metals was sensitive to inhibitors of translation during protein synthesis. There is evidence for the involvement of reactive oxygen species (ROS) in Cd‐induced ERK1/2 activation. In contrast, the Zn effect on the MTT‐reducing activity would not be triggered by ROS but it would be sensitive to the redox state of the cell. Steps downstream ERK1/2 activation by Cd does not involve eIF4E which is rather downregulated by Cd. In conclusion, Cd and Zn both can modify translation processes during protein synthesis via different signaling cascades with crosstalk, and cross‐inhibition may occur. This phenomenon is observed over a small range of metal concentrations and is characterized by a hormesis‐like response. Considering that the hormetic effect on dehydrogenase activity could reflect an adaptive response to the metals whether cross‐inhibition is beneficial is an open question.

show abstract

“…coffeella , extend the lifespan of the adult Grapholitha molesta (Busck), and affect the fecundity of female B . dorsalis (Hendel) and Spodoptera exigua (Hübner)[ 11 , 15 – 17 ]. This study showed that flies emergence, mating, oviposition and thermotactic behaviour were affected after exposure to 33°C for 1hr.…”

Section: Discussionmentioning

confidence: 99%

Influence of high-temperature exposure on the mating, oviposition and thermotaxis of Bactrocera cucurbitae (Coquillet) (Diptera:Tephritidae)

Zeng

Zhu

et al. 2018

PLoS ONE

View full text Add to dashboard Cite

BackgroundBactrocera cucurbitae (Coquillett) is an important pest of cucurbit crops and certain vegetables in Asia, the Middle East, Africa and Hawaii. Most studies on B. cucurbitae have focussed on the effects of prolonged high temperature and very few have examined the effects of short-term exposures to high-temperature on behaviour.ResultsIn this study, short-term of high-temperature treatments of 33°C, 37°C, 41°C and 45°C were maintained for 1-3hr, and long-term, variable high-temperature treatments were established that consisted of experienced one, two and three times high temperatures stages to 31°C, 33°C, 34°C, 35°C, 36°C, 37°C, 41°C and 45°C for 7hr. We compared the effects of the different high temperatures regimes changes treatments on the mating, oviposition and thermotactic taxis of the flies. The results showed that exposure to a 45°C/1hr treatment, delayed both initiation of mating and oviposition for 8 hr relative to the control but mating and was observed 41 times and oviposition 47 times. By comparison, in the control, mating commenced immediately and was observed 38.3 times and oviposition was observed 41.3 times. Under the other treatments, all the indices for the flies declined with the increase in temperature and duration of exposure.ConclusionResults showed that 1hr of exposure to 45°C significantly stimulated mating, oviposition and thermotactic behaviour of the flies. These results could improve our understanding of the mechanisms responsible for the population dynamics of B. cucurbitae during the high-temperature season.

show abstract

A Single Hot Event Stimulates Adult Performance but Reduces Egg Survival in the Oriental Fruit Moth, Grapholitha molesta

Cited by 37 publications

References 55 publications

Effect of short-term high-temperature exposure on the life history parameters of Ophraella communa

Effect of short-term high-temperature exposure on the life history parameters of Ophraella communa

Zinc interference with Cd‐induced hormetic effect in differentiated Caco‐2 cells: Evidence for inhibition downstream ERK activation

Influence of high-temperature exposure on the mating, oviposition and thermotaxis of Bactrocera cucurbitae (Coquillet) (Diptera:Tephritidae)

Contact Info

Product

Resources

About