Influence of temperature on the reproductive and demographic parameters of two spider mite pests of vineyards and their natural predator

Stavrinides, Menelaos C.; Mills, Nicholas J.

doi:10.1007/s10526-010-9334-6

Cited by 22 publications

(11 citation statements)

References 33 publications

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“…In the evolution of arthropods, many practical strategies have been utilized to handle with a serious of environmental stress stimuli, including high temperature, the main environmental factor affecting the performance of predatory mites in agro-ecosystems. For example, high temperature favors Tetranychusmite populations rather than Phytoseiid mites, which could reduce the effectiveness of predatory mites and cause disruption or failure of direct biological control (Stavrinides & Mills, 2011). In a previous study, we confirmed that heat acclimation dramatically promoted the thermotolerance ofN.…”

Section: Discussionsupporting

confidence: 73%

“…Furthermore, changes in thermoregulatory phenotypic plasticity generally tend to vary with different trophic levels and sensitivity increases significantly with increasing trophic level (Voigt et al, 2003). High temperatures favor mite pests rather than phytoseiid mites, resulting in the reduced efficiency of predators (Stavrinides et al, 2010;Stavrinides & Mills, 2011).…”

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confidence: 99%

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Sustaining induced heat shock protein 70 confers biological thermotolerance: a case in a high-temperature adapted predatory mite

Tian¹,

Li²,

Wu³

et al. 2020

Preprint

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Tiny predators, especially like phytoseiid mites, often experience a host of threats or stresses by fluctuating environmental factors. Heat acclimation as a superior adaptation strategy critically enhances abilities for organisms to handle with changing climate, but little is known about the molecular mechanism determining tolerant plastic responses in Phytoseiid mites. The relative expression of four identified HSP70 genes in two strains of Neoseiulus barkeri increased within a short time in temperature ramping treatment; meanwhile the expression of NbHSP70-1 and NbHSP70-2 in the conventional strain (CS) sharply decreased after 4 h displaying distinct contrast with the stable expression in the high-temperature adapted strain (HTAS). Western blot analysis showed that the protein level of NbHSP70-1 in CS was dramatically elevated at 0.5 h and decreased at 6 h at 42°C. Conversely, in HTAS, NbHSP70-1 was constantly induced and peaked at 6 h changed at 42°C. Furthermore, HSP70 suppression by RNAi knockdown had a greater influence on the survival of HTAS, causing a higher mortality under high temperature than CS. The recombinant certain exogenous NbHSP70-1 protein enhanced the viability of E. coli BL21 under lethal temperature of 50°C. These results suggested that HSP70 genes were a prominent contributor promoting the thermotolerance to heat stress and plastic change of HSP70 genes conferred the thermotolerance of HTAS through long-term heat acclimation. The divergent constitutive regulation of HSP70 to thermal is conducive to the flexible adaptability of predators in higher trophic level to trade off under extremely adversity stress.

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Section: Discussionsupporting

confidence: 73%

mentioning

confidence: 99%

Sustaining induced heat shock protein 70 confers biological thermotolerance: a case in a high-temperature adapted predatory mite

Tian¹,

Li²,

Wu³

et al. 2020

Preprint

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“…Different trophic levels had different sensitivities to climate, and these sensitivities were highly significantly ordered with increasing trophic rank (producers < herbivores < carnivores). In addition, high temperatures favor mite pests rather than phytoseiid mites, resulting in the reduced efficiency of predators 7,8 …”

Section: Introductionmentioning

confidence: 99%

Sustaining induced heat shock protein 70 confers biological thermotolerance in a high‐temperature adapted predatory mite Neoseiulus barkeri (Hughes)

Tian

et al. 2020

Pest Management Science

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BACKGROUND In fluctuating climatic environments, heat acclimation in predatory mites is a superior adaptation strategy for effective agricultural pest management and can be used to enhance the abilities critical in biological control efficiency. We investigated the regulatory mechanism governing the remarkable plastic response of thermotolerance in a high‐temperature adapted strain (HTAS) and discerned the differences in the defensive reactions between the HTAS and the conventional strain (CS) in the predatory mite Neoseiulus barkeri. RESULTS At 42 °C, the relative expression levels of four identified HSP70 genes increased rapidly in both N. barkeri strains; meanwhile the expression of NbHSP70‐1 and NbHSP70‐2 in CS sharply decreased after 4 h, displaying a distinct contrast with the remaining elevated expression in HTAS. Western blot analysis showed that the protein level of NbHSP70‐1 in CS was dramatically elevated at 0.5 h and decreased at 6 h at 42 °C. Conversely, in HTAS, NbHSP70‐1 was constantly induced and peaked at 6 h at 42 °C. Furthermore, HSP70 suppression by RNAi knockdown had a greater influence on the survival of HTAS, causing a higher mortality under high temperature than CS. Finally, the recombinant exogenous NbHSP70‐1 protein enhanced the viability of E. coli BL21 under a lethal temperature of 50 °C. CONCLUSION Sustained accumulation of HSP70 proteins results in predatory phytoseiid mites with the thermotolerance advantage that could promote their biological control function to pests. The divergent constitutive regulation of HSP70 to a thermal environment is conducive to the flexible adaptability of predators in the higher trophic level to trade off under extremely adversity stress.

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“…T. pacificus has 5 distinct life stages including one larval stage and two nymphal stages (protonymph and deutonymph) and undergoes a quiescent period at each stage transition. Its demography (including development rate and fecundity) is highly temperature sensitive [43], [44] and highly variable [45].…”

Section: Methodsmentioning

confidence: 99%

Small-Scale Intraspecific Life History Variation in Herbivorous Spider Mites (Tetranychus pacificus) Is Associated with Host Plant Cultivar

Scranton

Stavrinides²,

Mills³

et al. 2013

PLoS ONE

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Life history variation is a general feature of arthropod systems, but is rarely included in models of field or laboratory data. Most studies assume that local processes occur identically across individuals, ignoring any genetic or phenotypic variation in life history traits. In this study, we tested whether field populations of Pacific spider mites (Tetranychus pacificus) on grapevines (Vitis vinifera) display significant intraspecific life history variation associated with host plant cultivar. To address this question we collected individuals from sympatric vineyard populations where either Zinfandel or Chardonnay were grown. We then conducted a “common garden experiment” of mites on bean plants (Phaseolus lunatus) in the laboratory. Assay populations were sampled non-destructively with digital photography to quantify development times, survival, and reproductive rates. Two classes of models were fit to the data: standard generalized linear mixed models and a time-to-event model, common in survival analysis, that allowed for interval-censored data and hierarchical random effects. We found a significant effect of cultivar on development time in both GLMM and time-to-event analyses, a slight cultivar effect on juvenile survival, and no effect on reproductive rate. There were shorter development times and a trend towards higher juvenile survival in populations from Zinfandel vineyards compared to those from Chardonnay vineyards. Lines of the same species, originating from field populations on different host plant cultivars, expressed different development times and slightly different survival rates when reared on a common host plant in a common environment.

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Influence of temperature on the reproductive and demographic parameters of two spider mite pests of vineyards and their natural predator

Cited by 22 publications

References 33 publications

Sustaining induced heat shock protein 70 confers biological thermotolerance: a case in a high-temperature adapted predatory mite

Sustaining induced heat shock protein 70 confers biological thermotolerance: a case in a high-temperature adapted predatory mite

Sustaining induced heat shock protein 70 confers biological thermotolerance in a high‐temperature adapted predatory mite Neoseiulus barkeri (Hughes)

Small-Scale Intraspecific Life History Variation in Herbivorous Spider Mites (Tetranychus pacificus) Is Associated with Host Plant Cultivar

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