Mark J. Wetzel (auth.), Piet F. M. Verdonschot, Hongzhe's Aquatic Oligochaete Biology IX: Selected Papers from the 9th PDF

By Mark J. Wetzel (auth.), Piet F. M. Verdonschot, Hongzhe Wang, Adrian Pinder, Rebi Nijboer (eds.)

This quantity includes chosen papers from the ninth Symposium on Aquatic Oligochaeta, 6–10 October 2003, Wageningen, The Netherlands. 18 contributions care for the biology of aquatic oligochaetes, and represents a mix of the fields of taxonomy, anatomy, morphology and body structure, existence heritage, ecology, sludge stories and toxicology. This large scope is in keeping with the new tendencies in oligochaete study, with a distinct curiosity in sludge studies.

Research groups from France, Japan, usa, Czech Republic, The Netherlands, Spain, Italy, Germany, Hungary and China current the newest advancements on annelid reports and in addition mirror a balanced mix of geographical parts, in addition to organic topics.

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Extra resources for Aquatic Oligochaete Biology IX: Selected Papers from the 9th Symposium on Aquatic Oligochaeta, 6–10 October 2003, Wageningen, The Netherlands

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As found in the above-described experiments, o bandlets assume the O fate in the presence of p bandlets; otherwise they express the P fate. Apparently, for the O lineage, the P fate is the primary fate and the O fate is the secondary fate. The O and P teloblasts are sister blastomeres resulting from the equal division of an OP proteloblast. As stated above, the O teloblast is pluripotent and its progeny cells are able to respond to inductive signals from the neighboring p bandlet. In contrast, P teloblasts do not appear to be affected by the O teloblast.

M. Verdonschot, H. Wang, A. Pinder & R. 1007/s10750-005-1705-0 Ó Springer 2006 Distribution pattern of c-amino butyric acid immunoreactive neural structures in the central and peripheral nervous system of the tubificid worm, Limnodrilus hoffmeisteri La´szlo´ Molna´r1,2,*, Ga´bor Kiszler1, Edit Polla´k1,2 & La´szlo´ Deres1 1 Research Group of Comparative Anatomy, Department of General Zoology and Neurobiology, University of Pe´cs, Ifju´sa´g u. 6, H-7624 Pe´cs, Hungary 2 Adaptation Biology Research Group of the Hungarian Academy of Sciences and University of Pe´cs, Ifju´sa´g u.

Upon its birth, the NOPQ cell may be determined as a precursor of ectoteloblasts. However, it is unclear whether nascent NOPQ cells already possess polarized properties that foreshadow the polarity of teloblastogenesis. Therefore, it remains to be determined whether the external cues endow NOPQ cells with de novo polarity or strengthen (or stabilize) the preexisting polarity of NOPQ cells. Figure 9. Model for patterning of ectodermal teloblastogenesis in the Tubifex embryo. Filled arrowheads (b) indicate the interactions between NOPQ cells that polarize themselves.

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