title: Teratological deformities of pedipalps in the Tegenaria atrica spider, induced by low and high temperatures applied alternately.
abstract: The study was aimed at demonstrating the relationship between temperature (as a factor which disturbs morphogenesis) and deformities in the front part of the prosoma in Tegenaria atrica. By exposing spider embryos to alternating temperatures of 14 and 32°C for the first 10 days of embryonic development, i.e. until the first metameres of the prosoma appeared on the germ band, we obtained individuals with a range of anomalies including those which affected the prosomal morphology. We selected five spiders with deformities of pedipalps or of pedipalps and walking legs for comprehensive analysis. The results indicate a relationship between temperature applied as a teratogenic factor and anomalies in the front part of the prosoma.
authors: Department of Invertebrate Zoology, Faculty of Biology and Environmental Protection, Nicolaus Copernicus University, Lwowska 1, Toruń 87-100, Poland. Electronic address: tnapiork@umk.pl.
authors: Teresa
authors: T
authors: Napiórkowska
authors: Department of Hydrobiolgy, Faculty of Biology and Environmental Protection, Nicolaus Copernicus University, Lwowska 1, Toruń 87-100, Poland.
authors: Paweł
authors: P
authors: Napiórkowski
authors: Department of Invertebrate Zoology, Faculty of Biology and Environmental Protection, Nicolaus Copernicus University, Lwowska 1, Toruń 87-100, Poland.
authors: Julita
authors: J
authors: Templin
mesh_terms: D000818:Animals; D004781:Environmental Exposure / Q000009:adverse effects*; D017880:Limb Deformities, Congenital; D013112:Spiders / Q000196:embryology*; D013696:Temperature
keywords: Alternating temperatures; Anomalies; Embryogenesis; Spiders; Teratological studies