Single and fused transgenic <i>Bacillus thuringiensis</i> rice alter the species‐specific responses of non‐target planthoppers to elevated carbon dioxide and temperature

Wan, Guijun; Dang, Zhihao; Wu, Gang; Parajulee, Megha N.; Ge, Feng; Chen, Fajun

doi:10.1002/ps.3667

Cited by 16 publications

(11 citation statements)

References 35 publications

(75 reference statements)

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“…There is an emerging consensus that elevated CO 2 and T levels are stimulatory (positive) and inhibitory (negative), respectively (Peters, ). First, this projected atmospheric warming, combined with projected atmospheric CO 2 level increases, may have marked ecological effects on the vegetative growth responses of agricultural plants, As elevated CO 2 and T also alter plant quality (nutritional and defensive characteristics) and quantity, and these effects may, in turn, be transmitted through food chains to higher trophic levels, such as insect herbivores (Newman, ; Stiling et al., ; Wan et al., ). Elevated CO 2 likely change the interspecific interactions among insect herbivores (Chen, Ge, & Su, ; Chen, Wu, Parajulee, & Ge, ; Gonzáles, Fuentes‐Contreras, & Niemeyer, ).…”

Section: Introductionmentioning

confidence: 99%

Elevated CO₂ and temperature alter specific‐species population dynamic and interspecific competition of three wheat aphids

Wang

Song

et al. 2018

J Applied Entomology

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Atmospheric warming, combined with projected atmospheric carbon dioxide (ab. CO2) level arising, may have marked ecological effects on growth of agricultural crop plants, and in turn affect the higher trophic level of insect herbivores. In this study, the effects of elevated CO2 (i.e., 650 μL/L vs. ambient 400 μL/L) and temperature (ab. T; ambient vs. ambient +0.6°C) on the population abundance and the interspecific competition among three co‐occurring species of wheat aphids (Sitobion avenae, Rhopalosiphum padi and Schizaphis graminum) were studied. The results indicated that wheat plants had higher biomass and yields when grown under elevated CO2 in contrast to ambient CO2, and elevated T had no significant effect on the biomass and yields of wheat plants. Elevated CO2 significantly decreased the population dynamic level of S. avenae, and increased the population dynamic levels of R. padi and S. graminum; Elevated T significantly decreased the population dynamic level of S. avenae and significantly increased the population dynamic level of R. padi. Moreover, elevated T significantly decreased the niche breadth of S. avenae and S. graminum, respectively, while elevated CO2 had no significant effect on the three species niche breadth. Furthermore, elevated CO2 and T both significantly increased the niche overlap index (ab. NOI) between S. avenae and R. padi, as well as between R. padi and S. graminus, elevated T significantly reduced the NOI between S. avenae and S. graminus. This study provides evidence that elevated CO2 and T can alter the species‐specific population abundance of three wheat aphids, and aggravate two major interspecific competition among these three co‐occurring species of wheat aphids by increasing their spatial overlap.

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Section: Introductionmentioning

confidence: 99%

Elevated CO₂ and temperature alter specific‐species population dynamic and interspecific competition of three wheat aphids

Wang

Song

et al. 2018

J Applied Entomology

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“…In addition, aphid responses seem to be host and even genotype-specific, and can be linked to quantitative and qualitative changes in foliar amino acids (Johnson et al, 2014). Using the examples mentioned above, a similar species-specificity (including population size and feeding rates) was applied to other hemipteran insects such as planthoppers Nilaparvata lugens Stål, Laodelphax striatellus Fallen and Sogatella furcifera Horváth, which showed different abundance responses when raised on rice (Oryza sativa) under eCO 2 conditions (Wan et al, 2014).…”

Section: Indirect Effects Of Climate Change Mediated Through Changes mentioning

confidence: 99%

Insect–plant–pathogen interactions as shaped by future climate: effects on biology, distribution, and implications for agriculture

Trębicki¹,

Dáder

Vassiliadis

et al. 2017

Insect Science

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Carbon dioxide (CO 2 ) is the main anthropogenic gas which has drastically increased since the industrial revolution, and current concentrations are projected to double by the end of this century. As a consequence, elevated CO 2 is expected to alter the earths' climate, increase global temperatures and change weather patterns. This is likely to have both direct and indirect impacts on plants, insect pests, plant pathogens and their distribution, and is therefore problematic for the security of future food production. This review summarizes the latest findings and highlights current knowledge gaps regarding the influence of climate change on insect, plant and pathogen interactions with an emphasis on agriculture and food production. Direct effects of climate change, including increased CO 2 concentration, temperature, patterns of rainfall and severe weather events that impact insects (namely vectors of plant pathogens) are discussed. Elevated CO 2 and temperature, together with plant pathogen infection, can considerably change plant biochemistry and therefore plant defense responses. This can have substantial consequences on insect fecundity, feeding rates, survival, population size, and dispersal. Generally, changes in host plant quality due to elevated CO 2 (e.g., carbon to nitrogen ratios in C3 plants) negatively affect insect pests. However, compensatory feeding, increased population size and distribution have also been reported for some agricultural insect pests. This underlines the importance of additional research on more targeted, individual insect-plant scenarios at specific locations to fully understand the impact of a changing climate on insect-plant-pathogen interactions.

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“…However, Chen et al found that Bt rice (cv., KMD expressing Cry1Ab ) delayed nymphal development, decreased female fecundity, and reduced population density of N. lugens [11]. Its close relative, the white-backed planthopper, Sogatella furcifera Horváth, on the other hand, thrived on Bt rice under elevated CO 2 [12]. To what extent Bt rice can control rice planthoppers is largely unclear.…”

Section: Introductionmentioning

confidence: 99%

Interactive Effects of [CO2] and Temperature on Plant Chemistry of Transgenic Bt Rice and Population Dynamics of a Non-Target Planthopper, Nilaparvata lugens (Stål) under Different Levels of Soil Nitrogen

Liu

Dang

Parajulee³

et al. 2019

Toxins

Self Cite

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Gaining a better understanding of the interactive effect of projected atmospheric CO2 level increase and the Earth’s rising temperature on plant chemistry (nutritional and defensive characteristics) of transgenic crops is essential when attempting to forecast the responses of target and non-target insects to climate change. In this study, effects of carbon dioxide (CO2; elevated versus ambient), temperature (T; high versus low), and their interactions on leaf nitrogen content (N%) and C:N ratio of transgenic Bt rice and its non-Bt isoline grown under low- and high-N fertilizer were systematically analyzed together with the resulting insect population dynamics of a non-target planthopper Nilaparvata lugens (Stâl) in open-top-chamber experiments. The results indicated that under low-N treatment, elevated CO2 at low T (i.e., eCO2) (compared to ambient CO2 at low T, i.e., CK) significantly decreased N% and Bt-toxin content and significantly increased C:N ratio in leaf sheath and leaf of Bt rice, especially during the tillering stage, whereas inverse effects of high T were shown on the plant chemistry of Bt rice, especially during heading stage. The combination of elevated CO2 and high T (i.e., Combined) (in contrast to CK) significantly increased N% and decreased C:N ratio in leaf sheath of Bt rice during the heading stage under low-N fertilizer, while significantly decreased N% and increased C:N ratio in leaf of Bt rice during the tillering stage, regardless of fertilizer-N level, and significantly increased Bt-toxin content in leaf sheath and leaf during the tillering stage under both low- and high-N. Moreover, no discernable relationships between Bt-toxin content and N% or leaf C:N ratio were observed at any CO2 or N levels evaluated. Furthermore, transgenic treatment, temperature and fertilizer-N level interactions, and CO2 and fertilizer-N level interactions all significantly affected the population dynamics of N. lugens. Specifically, high-N significantly enhanced the population dynamics of N. lugens fed on non-Bt rice grown under eTemp and Bt cultivar significantly reduced the population dynamics of N. lugens under eCO2 regardless of N fertilizer levels. The study demonstrates that the planting of transgenic Bt rice would not increase the risk of increased N. lugens severity under the combined condition of elevated CO2 and increased temperature, particularly under moderate level of N fertility.

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Single and fused transgenic Bacillus thuringiensis rice alter the species‐specific responses of non‐target planthoppers to elevated carbon dioxide and temperature

Cited by 16 publications

References 35 publications

Elevated CO₂ and temperature alter specific‐species population dynamic and interspecific competition of three wheat aphids

Elevated CO₂ and temperature alter specific‐species population dynamic and interspecific competition of three wheat aphids

Insect–plant–pathogen interactions as shaped by future climate: effects on biology, distribution, and implications for agriculture

Interactive Effects of [CO2] and Temperature on Plant Chemistry of Transgenic Bt Rice and Population Dynamics of a Non-Target Planthopper, Nilaparvata lugens (Stål) under Different Levels of Soil Nitrogen

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Single and fused transgenic Bacillus thuringiensis rice alter the species‐specific responses of non‐target planthoppers to elevated carbon dioxide and temperature

Cited by 16 publications

References 35 publications

Elevated CO2 and temperature alter specific‐species population dynamic and interspecific competition of three wheat aphids

Elevated CO2 and temperature alter specific‐species population dynamic and interspecific competition of three wheat aphids

Insect–plant–pathogen interactions as shaped by future climate: effects on biology, distribution, and implications for agriculture

Interactive Effects of [CO2] and Temperature on Plant Chemistry of Transgenic Bt Rice and Population Dynamics of a Non-Target Planthopper, Nilaparvata lugens (Stål) under Different Levels of Soil Nitrogen

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Elevated CO₂ and temperature alter specific‐species population dynamic and interspecific competition of three wheat aphids

Elevated CO₂ and temperature alter specific‐species population dynamic and interspecific competition of three wheat aphids