Intra-uterine birth causing maternal death ( endotokia matricida ) is relatively common in rhabditid nematodes and typical for entomopathogenic nematodes of the genus Heterorhabditis . A detailed description of this phenomenon is given, including a summary of embryo development, egg-laying, juvenile hatching and development. It is demonstrated that low food supply significantly promotes the beginning of endotokia matricida but has no influence on the time scale of the process. The biological function of endotokia matricida and the intra-uterine induction of the dauer formation is discussed. Endotokia matricida in Heterorhabditis spp. is a well synchronised process of the destruction of the maternal tissues correlated with the juvenile development including the uptake of the symbiotic bacteria by the late pre-dauer stage. It secures the development of dauer juveniles at a moment when the external food supply is reducing and provides offspring which are well equipped with energy reserves and symbiotic bacteria for long term survival and subsequent infection of insects in the soil. Endotokia matricida bei Hermaphroditen von Heterorhabditis spp. und der Einfluss der Nahrungsversorgung . - Der Schlupf juveniler Nematoden im mutterlichen Uterus mit anschliessender Totung des Muttertieres ( endotokia matricida ) ist relativ weit verbreitet bei rhabditiden Nematoden und typisch fur entomopathogene Nematoden der Gattung Heterorhabditis . Die Endotokia matricida wird beschrieben sowie die Embryonalentwicklung, das Eilegeverhalten, der...
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Round-ups are the summaries of handpicked papers around trending topics published every week. These would enable you to scan through a collection of papers and decide if the paper is relevant to you before actually investing time into reading it.
Climate change Research Articles published between Jan 23, 2023 to Jan 29, 2023
Jan 30, 2023
Articles Included: 3
Climate change adaptation has shifted from a single-dimension to an integrative approach that aligns with vulnerability and resilience concepts. Adapt...Read More
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