Preface p. 2 Introduction to the Translation p. 3 Translations p. 4 Introduction p. 4 1. On the significance of nematodes and research about them p. 4 2. History of research on the Rhabditidae p. 5 3. Material and methods p. 5 4. Concepts and methods of phylogenetic systematics p. 6 5. Explanation of morphological characters p. 7 Main Part p. 8 Chapter I. Phylogenetic system of Rhabditinae sens...

The biocontrol potential of entomopathogenic nematodes (EPNs) against soil-dwelling life stages of the onion thrips, Thrips tabaci Lindeman (Thysanoptera: Thripidae) was evaluated under laboratory and semi-field conditions. The pathogenicity of native isolate of Steinernema feltiae (T1) and three commercial strains, S. feltiae, S. carpocapsae (Rhabditida: Steinernematidae) and Heterorhabditis b...

We re-isolated in China a relative of the nematode model Caenorhabditis elegans that was previously referred to informally as C. sp. 5. In spite of its importance for comparative biology, C. sp. 5 has remained morphologically uncharacterized. Therefore, we now provide detailed description of morphology and anatomy, assigning the name of Caenorhabditis sinica sp. n. to this nematode that is foun...

We describe the complete embryonic cell lineage of the marine nematode Pellioditis marina (Rhabditidae) up to somatic muscle contraction, resulting in the formation of 638 cells, of which 67 undergo programmed cell death. In comparison with Caenorhabditis elegans, the overall lineage homology is 95.5%; fate homology, however, is only 76.4%. The majority of the differences in fate homology conce...

We have investigated the molecular evolution of the nucleotide sequences of 18S ribosomal RNA genes (18S rDNA) from a set of nematodes in the family Rhabditidae (Nematoda: Secernentea). Our aim was to evaluate the usefulness of this gene for molecular systematics of this family, as well as to establish phylogenetic relationships within a group that has potential for comparative studies of the r...

The study of the pharynx in nematode Metarhabditis andrassyana (Tahseen et al. Int J Nematol 14:163–168, 2004) revealed that activity declined with age and was also reduced absence E.coli. A comparison between presence bacteria same group a reduction pharyngeal pumping both 2-day-old individuals 8-day-old individuals. However, when nematodes were placed together groups varying numbers, pulsatio...