TY - JOUR A1 - Hertel, Horst T1 - Trends in der europäischen Holzschutznormung PY - 2009 SN - 0018-3881 VL - 50 IS - 5 SP - 54 EP - 55 PB - DRW-Verl. Weinbrenner CY - Leinfelden-Echterdingen AN - OPUS4-19860 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Hertel, Horst T1 - Anfälligkeit von Holz nach unterschiedlicher Vorbehandlung gegenüber dem Hausbockkäfer T2 - 26. Holzschutztagung 2010 CY - Göttingen, Deutschland DA - 2010-04-22 KW - Verhalten KW - Holzwahl KW - Holzqualität KW - Laborverfahren PY - 2010 SP - 1 EP - 11(?) CY - Göttingen AN - OPUS4-21369 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Hertel, Horst T1 - DIN 68800-3, Vorbeugender Schutz von Holz mit Holzschutzmitteln T2 - 26. Holzschutztagung 2010 CY - Göttingen, Deutschland DA - 2010-04-22 KW - DIN KW - Holzschutz KW - Biozide KW - Holzschutzmittel PY - 2010 SP - 1 EP - 5(?) CY - Göttingen AN - OPUS4-21370 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Hertel, Horst A1 - Posacki, Erol A1 - Plarre, Rüdiger T1 - Directional orientation of Reticulitermes flavipes (Isoptera: Rhinotermitidae) N2 - Subterranean termites moving in the peripheral tubular network of their foraging area need to distinguish the trail direction. In a natural gallery or tunnel network of Reticulitermes flavipes the branches at bifurcations generally have an acute angle between them. the resulting obtuse angle from the main trail leading into a branch is preferred by commuting termites. In experiments with artificial gallery forks, termites returning from a food source only neglected the trail junction leading to the nest and preferred the trail to a second food source if the angle to the nest was acute. A right angle to the nest was preferred over a straight way leading to a second food source. This preference to the nest increased when the three branches at trifurcations were arranged equi-angular. This preferred orientation could be attributed to attracting odours from close-by gallery material. Additionally, R. flavipes moved more slowly towards a food source consisting of pine wood than on the way back to the nest, as was shown in artificial one-way galleries. However, the significance of this speed difference remains uncertain because the speed of a homing termite in an artificially reversed trail does not slow down to the speed of a food foraging termite. KW - Termites KW - Orientation KW - Foraging KW - Tunnel network PY - 2010 SN - 0361-6525 VL - 56 IS - 1 SP - 223 EP - 233 PB - California State University CY - Chico, Calif. AN - OPUS4-21674 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Hertel, Horst T1 - Termiten, die großen Baumeister der Savanne T2 - Jahresabschlusstreffen Normenausschuss Schweißtechnik (NAS) CY - Berlin, Germany DA - 2010-11-24 PY - 2010 AN - OPUS4-22926 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Hertel, Horst A1 - Hanspach, Alexa A1 - Plarre, Rüdiger T1 - Differences in alarm responses in drywood and subterranean termites (Isoptera: Kalotermitidae and Rhinotermitidae) to physical stimuli N2 - Alarm response triggered by physical stimuli is wide spread in termites but executed in several different behavioural patterns. The drywood and subterranean termite species tested in this study differed significantly by either head-drumming or jerking when stimulated by light, air-flow, or air borne Sound stimuli. Nevertheless, differences may have a common evolutionary base. Repetitive stimuli of the same quality led to reduced responses over time, which was interpreted as habituation behaviour, a simple form of learning. Adaptation as alternative explanation was ruled out because when termites were subjected with a dis-habituation-stimulus followed by the original stimulus full Response occurred again to this stimulus. KW - Incisitermes KW - Coptotermes KW - Head-drumming KW - Jerking KW - Habituation PY - 2011 DO - https://doi.org/10.1007/s10905-010-9240-x SN - 0892-7553 VL - 24 IS - 2 SP - 106 EP - 115 PB - Springer Science + Business Media B.V. CY - Dordrecht [u.a.] AN - OPUS4-22978 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Riparbelli, M.G. A1 - Callaini, G. A1 - Mercati, D. A1 - Hertel, Horst A1 - Dallai, R. T1 - Centrioles to basal bodies in the spermiogenesis of Mastotermes darwiniensis (Insecta, Isoptera) N2 - In addition to their role in centrosome organization, the centrioles have another distinct function as basal bodies for the formation of cilia and flagella. Centriole duplication has been reported to require two alternate assembly pathways: template or de novo. Since spermiogenesis in the termite Mastotermes darwiniensis lead to the formation of multiflagellate sperm, this process represents a useful model system in which to follow basal body formation and flagella assembly. We present evidence of a possible de novo pathway for basal body formation in the differentiating germ cell. This cell also contains typical centrosomal proteins, such as centrosomin, pericentrin-like protein, γ-tubulin, that undergo redistribution as spermatid differentiation proceeds. The spermatid centrioles are long structures formed by nine doublet rather than triplet microtubules provided with short projections extending towards the surrounding cytoplasm and with links between doublets. The sperm basal bodies are aligned in parallel beneath the nucleus. They consist of long regions close to the nucleus showing nine doublets in a cartwheel array devoid of any projections; on the contrary, the short region close to the plasma membrane, where the sperm flagella emerge, is characterized by projections similar to those observed in the centrioles linking the basal body to the plasma membrane. It is hypothesized that this appearance is in connection with the centriole elongation and further with the flagellar axonemal organization. Microtubule doublets of sperm flagellar axonemes are provided with outer dynein arms, while inner arms are rarely visible. KW - Centriole structure KW - Insect spermatozoa KW - Electron microscopy PY - 2009 DO - https://doi.org/10.1002/cm.20352 SN - 0886-1544 SN - 1097-0169 VL - 66 SP - 248 EP - 259 PB - Wiley-Blackwell CY - Hoboken, NJ, USA AN - OPUS4-20244 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Desai, M.S. A1 - Strassert, J.F.H. A1 - Meuser, K. A1 - Hertel, Horst A1 - Ikeda-Ohtsubo, W. A1 - Radek, R. A1 - Brune, A. T1 - Strict cospeciation of devescovinid flagellates and Bacteroidales ectosymbionts in the gut of dry-wood termites (Kalotermitidae) N2 - The surface of many termite gut flagellates is colonized with a dense layer of bacteria, yet little is known about the evolutionary relationships of such ectosymbionts and their hosts. Here we investigated the molecular phylogenies of devescovinid flagellates (Devescovina spp.) and their symbionts from a wide range of dry-wood termites (Kalotermitidae). From species-pure flagellate suspensions isolated with micropipettes, we obtained SSU rRNA gene sequences of symbionts and host. Phylogenetic analysis showed that the Devescovina spp. present in many species of Kalotermitidae form a monophyletic group, which includes also the unique devescovinid flagellate Caduceia versatilis. All members of this group were consistently associated with a distinct lineage of Bacteroidales, whose location on the cell surface was confirmed by fluorescence in situ hybridization. The well-supported congruence of the phylogenies of devescovinids and their ectosymbionts documents a strict cospeciation. In contrast, the endosymbionts of the same flagellates (´Endomicrobia´) were clearly polyphyletic and must have been acquired independently by horizontal transfer from other flagellate lineages. Also the Bacteroidales ectosymbionts of Oxymonas flagellates present in several Kalotermitidae belonged to several distantly related lines of descent, underscoring the general perception that the evolutionary history of flagellate-bacteria symbioses in the termite gut is complex. KW - Symbionts KW - Termite gut KW - Flagellates KW - Cospeciation KW - Bacteroidales KW - Devescovinids KW - Kalotermitidae KW - Dry-wood termites PY - 2010 DO - https://doi.org/10.1111/j.1462-2920.2009.02080.x SN - 1462-2912 SN - 1462-2920 VL - 12 IS - 8 SP - 2120 EP - 2132 PB - Blackwell Science CY - Oxford AN - OPUS4-20885 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Hertel, Horst T1 - DIN 68800-3, Vorbeugender Schutz von Holz mit Holzschutzmitteln T2 - 26. Holzschutz-Tagung, Georg-August-Universität Göttingen CY - Göttingen, Germany DA - 2010-04-22 PY - 2010 AN - OPUS4-21193 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Hertel, Horst T1 - Anfälligkeit von Holz nach unterschiedlicher Vorbehandlung gegenüber dem Hausbockkäfer T2 - 26. Holzschutz-Tagung, Georg-August-Universität Göttingen CY - Göttingen, Germany DA - 2010-04-22 PY - 2010 AN - OPUS4-21194 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -