title: Temperature effects on recovery time of bacterial growth after rewetting dry soil.
abstract: The effect of temperature on the recovery of bacterial growth after rewetting dry soil was measured in a soil that responded with bacterial growth increasing immediately upon rewetting in a linear fashion (type (i) response sensu Meisner et al. (Soil Biol Biochem 66: 188-192, 2013)). The soil was air-dried for 4 days and then rewetted at different temperatures. Bacterial growth over time was then estimated using the leucine incorporation method. At 25 °C, the recovery of bacterial growth to levels of a wet control soil was rapid, within 6 h, while at 15 °C, recovery time increased to around 60 h, becoming more than a week at 5 °C. The temperature dependency of the recovery time was well modeled by a square root function. Thus, temperature will not only directly affect growth rates but also affect length of transition periods, like resuscitation after a drying event. The temperature during the rewetting event thus has to be taken into consideration when analyzing the microbial response dynamics.
authors: Section of Microbial Ecology, Department of Biology, Lund University, Ecology Building, 223 62, Lund, Sweden, a.maienza@ibimet.cnr.it.
authors: Anita
authors: A
authors: Maienza
authors: Erland
authors: E
authors: Bååth
mesh_terms: D001419:Bacteria / Q000254:growth & development* / Q000378:metabolism; D003890:Desiccation; D065948:Grassland; D007930:Leucine / Q000378:metabolism; D012987:Soil / Q000737:chemistry*; D012988:Soil Microbiology; D013548:Sweden; D013696:Temperature; D014867:Water / Q000032:analysis / Q000378:metabolism*
chemical_list: D012987:Soil; D014867:Water; D007930:Leucine