Acclimation temperature influences the thermal sensitivity of injury accumulation in Folsomia candida at extreme low and high temperatures

• DOI: 10.1016/j.cris.2024.100089
• Publication Date: 2024-07-04T18:24:31Z
• Authors: Micha Wehrli; Stine Slotsbo; Jian Ge; Martin Holmstrup
• Keywords: Springtail

The importance of thermal acclimation for the Thermal Death Time (TDT) landscape common soil living springtail, Folsomia candida (Collembola, Isotomidae), was investigated. To this aim, we acclimated adult springtails at 10 °C (cold-acclimation) and 20 (warm-acclimation), respectively. In static tolerance assays, found relationship between survival exposure time a number stressful high low temperatures. Using logistic modelling, found, each temperature, until 50% mortality had been reached (Lt50). exponential functions TDT curves were by linear regression log10 Lt50 values against temperature. Results showed that cold significantly increased temperature dependence injury accumulation rate (increased slope 4 orders magnitude) in F. candida. Hence, changed status species from chill-susceptible to moderately chill-tolerant. cellular sub-zero temperatures not related freezing body water study. Congruently, significant negative effect on heat decreased sensitivity rate. Different slopes groups indicated shifted proportional mechanisms or nature mechanisms. Finally, compare combine extreme with previously published results longevity benign (from 0 30 °C) describe full niche