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121.
The biotransformation of hexachlorocyclohexane isomers (HCH) by two Dehalococcoides mccartyi strains (195 and BTF08) and an enrichment culture was investigated and compared to conversion by the obligate anaerobic strain Clostridium pasteurianum strain DSMZ 525. The D. mccartyi strains preferentially transformed γ-HCH over α-HCH and δ-HCH isomers while β-HCH biotransformation was not significant. In case of the enrichment culture, γ-HCH was preferentially transformed over the δ-HCH, β-HCH and α-HCH isomers. Major observed metabolites in both cases were tetrachlorocyclohexene and as end products monochlorobenzene (MCB) and benzene. Dechlorination of the γ-HCH isomer was linked to an increase in cell numbers for strain 195. γ-HCH transformation was linked to considerable carbon stable isotope fractionation with the enrichment factor εc?=???5.5?±?0.8‰ for D. mccartyi strain 195, εc?=???3.1?±?0.4‰ for the enrichment culture and εc?=???4.1?±?0.6‰ for co-metabolic transformation by C. pasteurianum. 相似文献
122.
Karl -Ernst Kaissling Maximilian Renner 《Journal of comparative physiology. A, Neuroethology, sensory, neural, and behavioral physiology》1968,59(4):357-361
Zusammenfassung Auf den Antennen aller drei Kasten von Apis mellifica konnten elektrophysiologisch 2 Typen von Riechzellen identifiziert werden, die auf Pheromone der Biene antworten. Der eine Typ ist auf Queen substance (9-Oxo-trans-2-decensäure), der andere auf den Sterzelduft der Arbeiterin spezialisiert. Beide Zelltypen werden bei Ableitungen von Porenplatten gefunden.
Antennal receptors for queen substance and scent gland odour in honeybees
Summary Electrophysiologically, we could identify two types of olfactory receptor cells, which respond to pheromones of the honeybee. These cells are associated with the poreplates on the antennae of all three castes of Apis mellifica. One of the cell types is specialized for the queen substance (9-oxo-trans-2-decenoic acid) while the other responds to the scent of the Nasanov gland.相似文献
123.
O. Renner 《Molecular & general genetics : MGG》1949,83(1):1-25
Ohne ZusammenfassungMit 9 Textabbildungen. 相似文献
124.
125.
W. Schleip E. Stein O. Kuttner O. Renner v. Graevenitz G. v. Ubisch G. Tischler und Franz Frimmel 《Molecular & general genetics : MGG》1919,21(3):174-200
Ohne Zusammenfassung 相似文献
126.
Using multiple landscape genetic approaches to test the validity of genetic clusters in a species characterized by an isolation‐by‐distance pattern 下载免费PDF全文
Swen C. Renner Marcela Suarez‐Rubio Kerstin R. Wiesner Cord Drögemüller Sonja Gockel Manfred Ayasse Alain C. Frantz 《Biological journal of the Linnean Society. Linnean Society of London》2016,118(2):292-303
Bayesian clustering methods are typically used to identify barriers to gene flow, but they are prone to deduce artificial subdivisions in a study population characterized by an isolation‐by‐distance pattern (IbD). Here we analysed the landscape genetic structure of a population of wild boars (Sus scrofa) from south‐western Germany. Two clustering methods inferred the presence of the same genetic discontinuity. However, the population in question was characterized by a strong IbD pattern. While landscape‐resistance modelling failed to identify landscape features that influenced wild boar movement, partial Mantel tests and multiple regression of distance matrices (MRDMs) suggested that the empirically inferred clusters were separated by a genuine barrier. When simulating random lines bisecting the study area, 60% of the unique barriers represented, according to partial Mantel tests and MRDMs, significant obstacles to gene flow. By contrast, the random‐lines simulation showed that the boundaries of the inferred empirical clusters corresponded to the most important genetic discontinuity in the study area. Given the degree of habitat fragmentation separating the two empirical partitions, it is likely that the clustering programs correctly identified a barrier to gene flow. The differing results between the work published here and other studies suggest that it will be very difficult to draw general conclusions about habitat permeability in wild boar from individual studies. 相似文献
127.
Georgi I. Wassilew Viktor Janz Lisa Renner Carsten Perka Axel Pruss 《Cell and tissue banking》2016,17(4):713-720
The objective of the present study was to analyze the clinical and radiological results of periacetabular osteotomies (PAO) using Kirschner wire fixation and an allogeneic cancellous bone graft. This retrospective cohort study included 73 patients (85 PAOs). The allografts were processed from distal femur of cadaveric donors, defatted, sterilized with a peracetic-acid ethanol solution and freeze-dried. The clinical outcome, as measured by the Harris Hip Scores (HHS), the complication rate and the acetabular correction, as measured by radiological parameters, were compared. The postoperative femoral head coverage and HSS were significantly improved. Major complications occurred in five cases (6 %), but in no case did we observe a non-union or a graft-associated adverse effect. Fixation of the acetabular fragment with Kirschner wires in combination with an allogeneic cancellous bone graft is a safe method, with a low complication rate, no loss of correction and can prevent the occurrence of non-union with a high degree of probability. 相似文献
128.
B Grimbacher A A Schffer S M Holland J Davis J I Gallin H L Malech T P Atkinson B H Belohradsky R H Buckley F Cossu T Espaol B Z Garty N Matamoros L A Myers R P Nelson H D Ochs E D Renner N Wellinghausen J M Puck 《American journal of human genetics》1999,65(3):735-744
The hyper-IgE syndrome (HIES) is a rare primary immunodeficiency characterized by recurrent skin abscesses, pneumonia, and highly elevated levels of serum IgE. HIES is now recognized as a multisystem disorder, with nonimmunologic abnormalities of the dentition, bones, and connective tissue. HIES can be transmitted as an autosomal dominant trait with variable expressivity. Nineteen kindreds with multiple cases of HIES were scored for clinical and laboratory findings and were genotyped with polymorphic markers in a candidate region on human chromosome 4. Linkage analysis showed a maximum two-point LOD score of 3.61 at recombination fraction of 0 with marker D4S428. Multipoint analysis and simulation testing confirmed that the proximal 4q region contains a disease locus for HIES. 相似文献
129.
Yuanshu Pu Alivereti Naikatini Oscar Alejandro PrezEscobar Martina Silber Susanne S. Renner Guillaume Chomicki 《Ecology and evolution》2021,11(22):15882
Farming of fungi by ants, termites, or beetles has led to ecologically successful societies fueled by industrial‐scale food production. Another type of obligate insect agriculture in Fiji involves the symbiosis between the ant Philidris nagasau and epiphytes in the genus Squamellaria (Rubiaceae) that the ants fertilize, defend, harvest, and depend on for nesting. All farmed Squamellaria form tubers (domatia) with preformed entrance holes and complex cavity networks occupied by P. nagasau. The inner surface of the domatia consists of smooth‐surfaced walls where the ants nest and rear their brood, and warty‐surfaced walls where they fertilize their crop by defecation. Here, we use RNA sequencing to identify gene expression patterns associated with the smooth versus warty wall types. Since wall differentiation occurred in the most recent common ancestor of all farmed species of Squamellaria, our study also identifies genetic pathways co‐opted following the emergence of agriculture. Warty‐surfaced walls show many upregulated genes linked to auxin transport, root development, and nitrogen transport consistent with their root‐like function; their defense‐related genes are also upregulated, probably to protect these permeable areas from pathogen entry. In smooth‐surfaced walls, genes functioning in suberin and wax biosynthesis are upregulated, contributing to the formation of an impermeable ant‐nesting area in the domatium. This study throws light on a number of functional characteristics of plant farming by ants and illustrates the power of genomic studies of symbiosis. 相似文献