Article
Entomology
Hainan Shao, Yunxiang Liu, Yujiao Liu, Youpeng Lai
Summary: Evergestis extimalis (Scopoli) is a significant pest of spring oilseed rape that causes serious yield reduction every year. Using ice-nucleation-active microbes can effectively lower the cold tolerance of this pest and reduce its survival rate. Therefore, utilizing INA bacteria as a biological control strategy shows great potential.
Article
Physiology
Quan-Hong Xiao, Zhe He, Rong-Wei Wu, Dao-Hong Zhu
Summary: This study investigated the overwintering strategies of the swallowtail butterfly and found that diapausing pupae deplete glycogen stores during the pre-diapause period and switch to using lipids during the diapause maintenance phase. They also accumulate trehalose as a cryoprotectant and reduce free water content to enhance cold tolerance.
FRONTIERS IN PHYSIOLOGY
(2022)
Article
Environmental Sciences
Mingtao Tan, Hongfei Wu, Yaning Li, Aoying Zhang, Jinsheng Xu, Rusong Chai, Zhaojun Meng, Shanchun Yan, Dun Jiang
Summary: In this study, the effects of Cd exposure through the food chain on parasitic natural enemy insects were investigated. The results showed that Cd transfer through the food chain had a bio-minimization effect. Parasitization of Cd-accumulated pupae resulted in a significant reduction in the fitness of offspring wasps. Cd exposure caused oxidative damage and disrupted energy metabolism in the host insect. Overall, Cd exposure through the food chain negatively impacted the parasitic fitness of the natural enemy insects.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Agriculture, Multidisciplinary
Shan-chun Yan, Hong-fei Wu, Lin Zheng, Ming-tao Tan, Dun Jiang
Summary: This study investigated the effect of cadmium exposure on the parasitic fitness of Chouioia cunea and explored the mechanism by which cadmium exposure affects the interaction between H. cunea and C. cunea from the perspective of innate immunity in host insect and the oxidative status in the parasitoid offspring.
JOURNAL OF INTEGRATIVE AGRICULTURE
(2023)
Article
Biochemistry & Molecular Biology
Yu Song, Wei-wei Huang, Yu Zhou, Zhan-wu Li, Rong Ji, Xiao-fang Ye
Summary: Gomphocerus sibiricus eggs exhibit high cold tolerance during diapause, mainly attributed to the accumulation of glycerol, fructose, sorbitol, and specific amino acids for successful overwintering. Water content gradually increases with development, while the levels of other substances differ significantly between diapause and post-diapause development stages.
ARCHIVES OF INSECT BIOCHEMISTRY AND PHYSIOLOGY
(2021)
Article
Entomology
Chengcheng Li, Jiahe Pei, Jiale Li, Xiaobo Liu, Lili Ren, Youqing Luo
Summary: The cold tolerance strategy of overwintering Sirex noctilio larvae is freeze-avoidance, with their supercooling points adjusting seasonally to avoid icing damage. Different populations exhibit varied cold hardiness on a spatiotemporal scale, with harsher environments leading to stronger cold tolerance. Despite tunnels providing some protection, they do not affect the low temperature parameters for S. noctilio distribution. The insect shows a strong cold tolerance and has the ability to survive in cold regions, with a positive trend in geographic populations as ambient temperatures decrease.
Article
Entomology
Carl M. Stenoien, Lindsey Christianson, Kelton Welch, Jonathan Dregni, Keith R. Hopper, George E. Heimpel
Summary: Broad-spectrum insecticides are the main control measure for soybean aphid in North America, but biological control by natural enemies such as Aphelinus certus can also be effective. We tested the hypothesis that A. certus may experience high overwintering mortality. In the lab, we found that A. certus is freeze-intolerant and its survival decreases with longer durations of low temperature exposure.
BULLETIN OF ENTOMOLOGICAL RESEARCH
(2023)
Article
Entomology
MahboobehKhajehoseini Saleh Abad, Abbas Khani, Hamzeh Izadi, Najmeh Sahebzadeh, Mohammad-Amin Samih
Summary: In this research, the physiological adaptations of non-diapausing and overwintering adults of Acrosternum millierei were studied, including changes in supercooling point (SCP), survival at low temperatures, and accumulation of polyols. The results showed that the SCP significantly decreased from July 2018 to February 2018. Survival at low temperatures was correlated with SCP capacity. The major polyols in overwintering adults were trehalose, myoinositol, sorbitol, and glycerol.
INTERNATIONAL JOURNAL OF PEST MANAGEMENT
(2023)
Review
Construction & Building Technology
Longlei Que, Xuelai Zhang, Jun Ji, Liqiang Gao, Wenhao Xie, Lu Liu, Xingjiang Ding
Summary: Phase change materials can effectively reduce energy consumption in lightweight buildings, but issues such as phase change hysteresis and supercooling during phase transition must be considered. Hysteresis temperature plays a vital role in improving the thermal performance of building envelopes when PCM is used, and incomplete phase transition hysteresis is more noticeable with large temperature fluctuations. Further research is needed to explore nucleation mechanisms and the impact of experimental conditions on hysteresis phenomena in PCM applications.
ENERGY AND BUILDINGS
(2021)
Article
Entomology
Susana Pallares, David Garoffolo, Belen Rodriguez, David Sanchez-Fernandez
Summary: The climatic variability hypothesis (CVH) predicts that organisms in thermally variable environments have wider thermal breadths and higher thermal plasticity. However, taxa with greater thermal limits may have limited plasticity due to trade-offs. We investigated intraspecific variation in thermal tolerance in Mediterranean saline water beetles and found support for the CVH, but also evidence of trade-offs and species-specific patterns. Overlooking intraspecific variation in thermal tolerance could lead to inaccurate predictions of vulnerability to global warming in aquatic insects.
Article
Biochemistry & Molecular Biology
Tatsuya Arai, Akari Yamauchi, Ai Miura, Hidemasa Kondo, Yoshiyuki Nishimiya, Yuji C. Sasaki, Sakae Tsuda
Summary: The study found that the popular stag beetle synthesizes multiple isoforms of hyperactive antifreeze protein, which helps the beetle survive extreme freezing conditions. The DNA sequences of the beetle are highly similar to those of other hyperactive antifreeze proteins, suggesting a potential unrevealed gene transfer mechanism.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2021)
Article
Construction & Building Technology
Rashed Rahman, Tejo V. Bheemasetti
Summary: This research paper evaluates the use of calcium nitrate as a stabilizer to modify the thermal properties and improve the compressive strength of frost-susceptible soil. The effects of different dosages of calcium nitrate on the thermal properties and compressive strength are studied, and the role of fines content is analyzed. The results indicate significant alterations in the thermal properties and an increase in compressive strength for the treated soil samples, with a reduction in pore size and improved cementation observed.
JOURNAL OF MATERIALS IN CIVIL ENGINEERING
(2023)
Proceedings Paper
Construction & Building Technology
Rashed Rahman, Tejo V. Bheemasetti, Tanvi Govil, Aditya Ticku, Rajesh Sani
Summary: This paper presents a novel bio-treated solution to mitigate ice formation in frost-susceptible soils. The use of cold shock proteins (CSPs) from specific organisms like bacteria, fishes, insects, and plants is explored to lower the non-equilibrium freezing temperature of bodily fluids. The experiments confirm that the introduction of psychrophilic microbes, which release CSPs, can significantly depress the freezing point and control ice crystal growth in the soil. This research highlights a bio-mediated approach to controlling phase changes in frost-susceptible soils.
GEO-CONGRESS 2023: SOIL IMPROVEMENT, GEOENVIRONMENTAL, AND SUSTAINABILITY
(2023)
