Diapause induction, maintenance and termination in the rice stem borer Chilo suppressalis (Walker)

Xiao, Hai; Mou, Feng-Chen; Zhu, Xing-Fen; Xue, Fang‐Sen

doi:10.1016/j.jinsphys.2010.05.012

Cited by 66 publications

(57 citation statements)

References 32 publications

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“…However, the time at which different species are most sensitive to light pulses varies considerably [26]. In some insects, the time at which they are most highly photosensitive occurs in the early scotophase [23], [27]–[29], the middle of scotophase [22], [30], and the late scotophase [20], [25], [31], [32]. In the cabbage butterfly, Pieris melete (an intermediate-day species,), night interruption with a 1-h light pulse at LD 11∶13 (a winter diapause-inducing photoperiod) inhibited the incidence of diapause most effectively in late scotophase, whereas night interruption with a 1-h light pulse placed in early scotophase at LD 12.5∶11.5 (a diapause-inhibiting photoperiod) resulted in the highest intensity of diapause [21].…”

Section: Discussionmentioning

confidence: 99%

Diapause Induction and Termination in Hyphantria cunea (Drury) (Lepidoptera: Arctiinae)

et al. 2014

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The fall webworm, Hyphantria cunea (Drury), enters facultative diapause as a pupa in response to short-day conditions during autumn. Photoperiodic response curves showed that the critical day length for diapause induction was 14 h 30 min, 14 h 25 min and 13 h 30 min at 22, 25 and 28°C, respectively. The photoperiodic responses under non-24 h light–dark cycles demonstrated that night length played an essential role in the determination of diapause. Experiments using a short day length interrupted by a 1-h light pulse exhibited two troughs of diapause inhibition and the effect of diapause inhibition was greater in the early scotophase than in the late scotophase. The diapause-inducing short day lengths of 8, 10 and 12 h evoked greater intensities of diapause than did 13 and 14 h. Diapause can be terminated without exposure to chilling, but chilling at 5°C for 90 and 120 d significantly accelerated diapause development, reduced mortality, and synchronized adult emergence. Additionally, the potential for H. cunea from the temperate region (Qingdao) to emerge and overwinter under field conditions in subtropical regions (Nanchang) of China was evaluated. Pupae that were transferred to Nanchang in early July showed a 60% survival rate and extremely dispersed pupal period (from 12 to 82 days), suggesting that some pupae may undergo summer diapause. Diapausing temperate region pupae that were moved out-of-doors in Nanchang during October showed approximately 20% overwintering survival; moreover, those pupae that overwintered successfully emerged the next spring during a period when their host plants would be available. The results indicate that this moth has the potential to expand its range into subtropical regions of China.

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Section: Discussionmentioning

confidence: 99%

Diapause Induction and Termination in Hyphantria cunea (Drury) (Lepidoptera: Arctiinae)

et al. 2014

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“…1), suggesting that different long nights have different inductive effects. This phenomenon has been found in many long-day insect species, such as the large white butterfly, Pieris brassicae [16], the Indian meal moth, Plodia interpunctella [17], the linden bug, Pyrrhocoris apterus [18], the fly, Chymomyza costata [19], the spider mite, Tetranychus urticae [20], the pine caterpillars species, Dendrolimus punctatus and D. tabulaeformis [21], [22], the endoparasitoid wasp Microplitis mediator [23], and the rice stem borer Chilo suppressalis [24]. That ultra-long nights and DD result in a decline in diapause incidence presumably reflects the absence of selective pressure, but it may have a physiological significance when one attempts to determine the mechanism of time measurement [25].…”

Section: Discussionmentioning

confidence: 99%

Diapause Induction and Termination in the Small Brown Planthopper, Laodelphax striatellus (Hemiptera: Delphacidae)

et al. 2014

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The small brown planthopper, Laodelphax striatellus (Fallén) enters the photoperiodic induction of diapause as 3rd or 4th instar nymphs. The photoperiodic response curves in this planthopper showed a typical long-day response type with a critical daylength of approximately 11 h at 25°C, 12 h at 22 and 20°C and 12.5 h at 18°C, and diapause induction was almost abrogated at 28°C. The third stage was the most sensitive stage to photoperiod. The photoperiodic response curve at 20°C showed a gradual decline in diapause incidence in ultra-long nights, and continuous darkness resulted in 100% development. The required number of days for a 50% response was distinctly different between the short- and long-night cycles, showing that the effect of one short night was equivalent to the effect of three long nights at 18°C. The rearing day length of 12 h evoked a weaker intensity of diapause than did 10 and 11 h. The duration of diapause was significantly longer under the short daylength of 11 h than it was under the long daylength of 15 h. The optimal temperature for diapause termination was 26 and 28°C. Chilling at 5°C for different times did not shorten the duration of diapause but significantly lengthened it when chilling period was included. In autumn, 50% of the nymphs that hatched from late September to mid-October entered diapause in response to temperatures below 20°C. The critical daylength in the field was between 12 h 10 min and 12 h 32 min (including twilight), which was nearly identical to the critical daylength of 12.5 h at 18°C. In spring, overwintering nymphs began to emerge in early March-late March when the mean daily temperature rose to 10°C or higher.

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“…Photoperiod, temperature and crowding induce diapause, an integral part of the life cycle of many animals (Xiao et al, 2010;Meuti and Denlinger, 2013). Diapause involves several phases (Koštál, 2006), starting with initiation when gene expression is altered and accumulation of sugars and lipids may occur.…”

Section: Introductionmentioning

confidence: 99%

Artemin, a Diapause-Specific Chaperone, Contributes to the Stress Tolerance of Artemia Cysts and Influences Their Release from Females

King

Toxopeus

MacRae

2014

Journal of Experimental Biology

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Females of the crustacean Artemia franciscana produce either motile nauplii or gastrula stage embryos enclosed in a shell impermeable to nonvolatile compounds and known as cysts. The encysted embryos enter diapause, a state of greatly reduced metabolism and profound stress tolerance. Artemin, a diapause-specific ferritin homolog in cysts has molecular chaperone activity in vitro. Artemin represents 7.2% of soluble protein in cysts, approximately equal to the amount of p26, a small heat shock protein. However, there is almost twice as much artemin mRNA in cysts as compared with p26 mRNA, suggesting that artemin mRNA is translated less efficiently. RNA interference employing the injection of artemin double-stranded RNA into the egg sacs of A. franciscana females substantially reduced artemin mRNA and protein in cysts. Decreasing artemin diminished desiccation and freezing tolerance of cysts, demonstrating a role for this protein in stress resistance. Knockdown of artemin increased the time required for complete discharge of a brood of cysts carried within a female from a few hours up to 4 days, an effect weakened in successive broods. Artemin, an abundant molecular chaperone, contributes to stress tolerance of A. franciscana cysts while influencing their development and/or exit from females.

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Diapause induction, maintenance and termination in the rice stem borer Chilo suppressalis (Walker)

Cited by 66 publications

References 32 publications

Diapause Induction and Termination in Hyphantria cunea (Drury) (Lepidoptera: Arctiinae)

Diapause Induction and Termination in Hyphantria cunea (Drury) (Lepidoptera: Arctiinae)

Diapause Induction and Termination in the Small Brown Planthopper, Laodelphax striatellus (Hemiptera: Delphacidae)

Artemin, a Diapause-Specific Chaperone, Contributes to the Stress Tolerance of Artemia Cysts and Influences Their Release from Females

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