Bergmann, Fritz

[["dc.bibliographiccitation.firstpage","209"],["dc.bibliographiccitation.issue","4"],["dc.bibliographiccitation.journal","Perspectives in Plant Ecology Evolution and Systematics"],["dc.bibliographiccitation.lastpage","218"],["dc.bibliographiccitation.volume","5"],["dc.contributor.author","Gregorius, H. R."],["dc.contributor.author","Bergmann, F."],["dc.contributor.author","Wehenkel, C."],["dc.date.accessioned","2018-11-07T10:42:51Z"],["dc.date.available","2018-11-07T10:42:51Z"],["dc.date.issued","2003"],["dc.description.abstract","Biodiversity is a term that comprises the appearance, structure and function of all levels of biological organization, including genes, species and ecosystems. The vast majority of measures of biodiversity (usually termed 'diversity indices') considers only number, proportion and distribution of species which belong to a specified group and exist in a defined area or ecosystem. Genetic diversity as a part of biodiversity within species (or populations) was either not regarded in this respect or was treated (by geneticists) as a separate entity of diversity quantified with separate measures. Little attention has been given to the integration of both types of diversity, within and among species, in a single measurement (termed 'transspecific' diversity). In order to attain this integration on a general basis, an operational trait concept is developed which allows the determination of variation in traits observable in members not only of the same species but also of different species. The concept rests on methods of investigation that can be adapted to a broader range of organisms without modification of their characteristics. Once a trait is specified on this basis, any meaningful measure of diversity can be applied to assess biodiversity across levels of biological organization. The utility of the concept is demonstrated by application to the results of an earlier study on associations between species and genetic diversity in a forest tree community. Attributes of isozymes which are visible in electrophoresis are used as a transspecific genetic trait."],["dc.identifier.doi","10.1078/1433-8319-00035"],["dc.identifier.isi","000183330500001"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/46899"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Elsevier Gmbh, Urban & Fischer Verlag"],["dc.relation.issn","1433-8319"],["dc.title","Analysis of biodiversity across levels of biological organization: a problem of defining traits"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","125"],["dc.bibliographiccitation.issue","2"],["dc.bibliographiccitation.journal","Acta Societatis Botanicorum Poloniae"],["dc.bibliographiccitation.lastpage","127"],["dc.bibliographiccitation.volume","71"],["dc.contributor.author","Bergmann, F."],["dc.contributor.author","Mejnartowicz, L."],["dc.date.accessioned","2018-11-07T10:32:40Z"],["dc.date.available","2018-11-07T10:32:40Z"],["dc.date.issued","2002"],["dc.description.abstract","Annual plant species were found to have several distinct classes of hexokinases which are specific for different hexoses, such as glucose, fructose and mannose. In conifers one isozyme of hexokinase could be found in genetic studies if only glucose was employed as substrate. If fructose was substituted for glucose, another isozyme zone different from the common hexokinase could be observed in zymograms of extracts from seed tissues of Norway spruce, Scots pine and silver fir. Hence these three conifer species possess at least two different hexokinases, glucokinase and fructokinase."],["dc.identifier.isi","000181214500006"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/44399"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Polskie Towarzystwo Botaniczne"],["dc.relation.issn","0001-6977"],["dc.title","Substrate specificity of glucokinase and fructokinase of several conifer species"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","127"],["dc.bibliographiccitation.issue","2"],["dc.bibliographiccitation.journal","CANCER GENETICS AND CYTOGENETICS"],["dc.bibliographiccitation.lastpage","130"],["dc.bibliographiccitation.volume","120"],["dc.contributor.author","Gunawan, Bastian"],["dc.contributor.author","Weber, M."],["dc.contributor.author","Bergmann, F."],["dc.contributor.author","Wildberger, J."],["dc.contributor.author","Niethard, F. U."],["dc.contributor.author","Fuzesi, Laszlo"],["dc.date.accessioned","2018-11-07T10:39:27Z"],["dc.date.available","2018-11-07T10:39:27Z"],["dc.date.issued","2000"],["dc.description.abstract","We report cytogenetic findings in short-term cell cultures from five enchondromas and four chondrosarcomas. Clonal chromosome aberrations were found in one case of enchondroma, and in all cases of chondrosarcoma. The only enchondroma with nonrandom abnormalities had a reciprocal f(8;17)(q23;p13), and monosomies 9, 19, and/or 22. In contrast to the few karyotypic findings in one of five enchondromas, the four chondrosarcomas were commonly characterized by cytogenetic heterogeneity, with a tendency for increasing karyotypic complexity in higher grade tumors. Two cases, one grade III and one metastasizing grade II chondrosarcoma, revealed hypodiploid stem- and sidelines with loss of chromosomes 6, 10, 13, 14, and 22, as common chromosomal abnormalities, suggesting a distinct karyotypic pattern in a subset of biologically aggressive chondrosarcomas. (C) 2000 Elsevier Science me. All rights reserved."],["dc.identifier.doi","10.1016/S0165-4608(99)00254-X"],["dc.identifier.isi","000088925000006"],["dc.identifier.pmid","10942802"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/46050"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.relation.issn","0165-4608"],["dc.title","Clonal chromosome abnormalities in enchondromas and chondrosarcomas"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","1011"],["dc.bibliographiccitation.issue","12"],["dc.bibliographiccitation.journal","ROFO-FORTSCHRITTE AUF DEM GEBIET DER RONTGENSTRAHLEN UND DER BILDGEBENDEN VERFAHREN"],["dc.bibliographiccitation.lastpage","1015"],["dc.bibliographiccitation.volume","172"],["dc.contributor.author","Mahnken, A. H."],["dc.contributor.author","Wildberger, J. E."],["dc.contributor.author","Bergmann, F."],["dc.contributor.author","Fuzesi, Laszlo"],["dc.contributor.author","Adam, Gerhard"],["dc.contributor.author","Gunther, R."],["dc.date.accessioned","2018-11-07T10:15:31Z"],["dc.date.available","2018-11-07T10:15:31Z"],["dc.date.issued","2000"],["dc.description.abstract","Objective: To analyze the CT appearance of papillary renal cell tumor (pRCT) under consideration of gross pathology. Material and Methods: Preoperative CT-scans of 10 patients suffering from pRCT were re-evaluated by two experienced radiologists. CT appearance was correlated to gross morphology. Results: On CT, 9/10 tumors were depicted as rounded, well circumscribed and sharply delineated masses. These tumors presented a hypodense central area correlating to necrosis in gross pathology. The central area of necrosis was surrounded by vital tumor tissue, presenting as a serpiginous, contrast-enhancing margin on CT. One tumor was polycyclic due to multiple tumor nodules, but sharply demarcated towards the surrounding renal tissue. Conclusions: pRCT presents a quite unique CT appearance similar to its gross pathology."],["dc.identifier.doi","10.1055/s-2000-9221"],["dc.identifier.isi","000166208200011"],["dc.identifier.pmid","11199428"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/40824"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Georg Thieme Verlag Kg"],["dc.relation.issn","1438-9029"],["dc.title","Papillary renal cell tumor: Comparison of CT and gross morphology"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.issue","1"],["dc.bibliographiccitation.journal","Biophysical Journal"],["dc.bibliographiccitation.volume","86"],["dc.contributor.author","Bergmann, F."],["dc.contributor.author","Kasischke, K. A."],["dc.contributor.author","Zipfel, W. R."],["dc.contributor.author","Webb, W. W."],["dc.contributor.author","Keller, B. U."],["dc.date.accessioned","2018-11-07T10:52:09Z"],["dc.date.available","2018-11-07T10:52:09Z"],["dc.date.issued","2004"],["dc.format.extent","151A"],["dc.identifier.isi","000187971200782"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/49053"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Biophysical Society"],["dc.publisher.place","Bethesda"],["dc.relation.conference","48th Annual Meeting of the Biophysical Society"],["dc.relation.eventlocation","Baltimore, MD"],["dc.relation.issn","0006-3495"],["dc.title","Two-photon NADH imaging in the hypoglossal nucleus - implications for differential neuronal and astrocytic metabolism"],["dc.type","conference_abstract"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","143"],["dc.bibliographiccitation.issue","1-3"],["dc.bibliographiccitation.journal","Forest Ecology and Management"],["dc.bibliographiccitation.lastpage","152"],["dc.bibliographiccitation.volume","131"],["dc.contributor.author","Hosius, Bernhard"],["dc.contributor.author","Bergmann, F."],["dc.contributor.author","Konnert, M."],["dc.contributor.author","Henkel, W."],["dc.date.accessioned","2018-11-07T10:47:06Z"],["dc.date.available","2018-11-07T10:47:06Z"],["dc.date.issued","2000"],["dc.description.abstract","Advanced silvicultural methods in Thuringia as well as the necessity to preserve the generic resources of endangered tree species have led to the goal of establishing seed orchards of silver fir (Abies alba Mill.). In order to combine several economic and genetic features in constructing these seed orchards, the clones were chosen using a multistep procedure accompanied by genetic surveys at isoenzyme loci. Of the initial material consisting of 26 indigenous stands, 500 plus-trees were selected according to their vitality and growth. Based on several sampling strategies where the clone collections were stratified according to the level of gene diversity, occurrence of rare alleles and degree of homozygosity, 130 clones were finally chosen from the plus-tree collection. These clones are assumed to include all essential features attributed to a seed orchard which should produce vital and improved seed crop and preserve the gene pool of silver fir. (C) 2000 Elsevier Science B.V. All rights reserved."],["dc.identifier.doi","10.1016/S0378-1127(99)00209-1"],["dc.identifier.isi","000087426800011"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/47894"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Elsevier Science Bv"],["dc.relation.issn","0378-1127"],["dc.title","A concept for seed orchards based on isoenzyme gene markers"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","15"],["dc.bibliographiccitation.issue","1"],["dc.bibliographiccitation.journal","SILVAE GENETICA"],["dc.bibliographiccitation.lastpage","17"],["dc.bibliographiccitation.volume","52"],["dc.contributor.author","Mejnartowicz, L."],["dc.contributor.author","Bergmann, F."],["dc.date.accessioned","2018-11-07T10:43:00Z"],["dc.date.available","2018-11-07T10:43:00Z"],["dc.date.issued","2003"],["dc.description.abstract","In European silver fir (Abies alba Mill.) the enzyme system of aspartate aminotransferase (AAT) was supposed to be encoded by three gene loci. After applying improved extraction and electrophoretic separation procedures we succeeded in resolving four different AAT activity zones in zymograms which were found to be encoded by four loci. Whereas the two most anodal isozymes (AAT-A and AAT-B) and the most cathodal isozyme (now AAT-D) were already well-known, an intermediate AAT activity zone (now AAT-C) became for the first time visible following electrophoretic separation of seed tissue (megagametophyte) extracts. Possible associations of these four isozymes with different subcellular compartments were discussed."],["dc.identifier.isi","000184687400003"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/46941"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","J D Sauerlanders Verlag"],["dc.relation.issn","0037-5349"],["dc.title","Mode of inheritance of aspartate aminotransferase in silver-fir (Abies alba mill.)"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","87"],["dc.bibliographiccitation.issue","5-6"],["dc.bibliographiccitation.journal","ALLGEMEINE FORST UND JAGDZEITUNG"],["dc.bibliographiccitation.lastpage","91"],["dc.bibliographiccitation.volume","172"],["dc.contributor.author","Hosius, Bernhard"],["dc.contributor.author","Leinemann, Ludger"],["dc.contributor.author","Bergmann, F."],["dc.contributor.author","Maurer, W."],["dc.contributor.author","Tabel, U."],["dc.contributor.author","Eder, W."],["dc.date.accessioned","2018-11-07T09:04:48Z"],["dc.date.available","2018-11-07T09:04:48Z"],["dc.date.issued","2001"],["dc.description.abstract","It is attempted in this pilot study to establish possible relationships between the values of genetic diversity and species diversity for Norway spruce-beech forest communities. The object of this study comprises several natural regeneration areas in a nature forest reserve composed of different proportions of these two forest tree species (Tab. 1). Genetic diversity based on allele frequencies was determined at 14 and 9 polymorphic isozyme loci (Tab. 2) for spruce and beech, respectively while species diversity was calculated on the basis of their proportions in the plots under study. The resulting data revealed that the degree of genetic diversity remains nearly constant for spruce as well as for beech independent of the level of species diversity (Fig. 1 and 2). These results show that provided the seed populations posses sufficient genetic diversity, the natural regeneration in such forest tree communities is able to maintain this genetic diversity although there may be strong competition between spruce and beech in a limited area. Therefore it is concluded that the adaptability of both single species in a forest tree community is not diminished thus preserving the stability of the respective spruce beech ecosystems."],["dc.identifier.isi","000169632600002"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/25183"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Sauerlanders Verlag"],["dc.relation.issn","0002-5852"],["dc.title","Species diversity and genetic diversity - Is there any relationship?"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","58"],["dc.bibliographiccitation.issue","1"],["dc.bibliographiccitation.journal","Journal of Infection"],["dc.bibliographiccitation.lastpage","59"],["dc.bibliographiccitation.volume","45"],["dc.contributor.author","Bergmann, F."],["dc.contributor.author","Krone, Bernd"],["dc.contributor.author","Bleich, Stefan"],["dc.contributor.author","Prange, Hilmar"],["dc.contributor.author","Paulus, Walter J."],["dc.date.accessioned","2018-11-07T10:22:09Z"],["dc.date.available","2018-11-07T10:22:09Z"],["dc.date.issued","2002"],["dc.identifier.doi","10.1053/jinf.2002.1014"],["dc.identifier.isi","000178000100011"],["dc.identifier.pmid","12217734"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/42226"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","W B Saunders Co Ltd"],["dc.relation.issn","0163-4453"],["dc.title","Encephalitis due to a hantavirus infection"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","151"],["dc.bibliographiccitation.issue","1"],["dc.bibliographiccitation.journal","Plant Ecology"],["dc.bibliographiccitation.lastpage","161"],["dc.bibliographiccitation.volume","185"],["dc.contributor.author","Wehenkel, C."],["dc.contributor.author","Bergmann, F."],["dc.contributor.author","Gregorius, H. R."],["dc.date.accessioned","2018-11-07T09:39:20Z"],["dc.date.available","2018-11-07T09:39:20Z"],["dc.date.issued","2006"],["dc.description.abstract","The two most important components of biodiversity, species diversity and genetic diversity, have generally been treated as separate topics, although a coordination between both components is believed to be critical for ecosystem stability and resilience. Based on a new trait concept that allows for the assessment of genetic diversity across species, the relationship between species diversity and genetic diversity was examined in eight forest tree communities composed of different tree genera including both climax and pioneer species. It was intended to check whether a trade-off exists between the two diversity components as was found in a few studies on animal species. Using several isozyme-gene systems as genetic markers, the genetic diversity across species within each of the tree communities was determined by two measures, the commonly used intraspecific genetic diversity averaged over species and the recently developed transspecific genetic diversity per species. Both data sets were compared with the corresponding community-specific species diversity resulting in a positive relationship between the two diversity components. A statistically significant positive correlation was established between the transspecific genetic diversity per species and the species diversity for three isozyme-gene systems. Beyond that, consistent results were obtained using different parameters of the diversity measure which characterize the total, the effective and the number of prevalent variants. The number of prevalent variants reflected most significantly the non-randomness of the observed diversity patterns. These findings can be explained by the observation that the pioneer tree species reveal a by far higher genetic diversity than the climax tree species, which means that an increase in species diversity, due to the addition of several pioneer species at the expense of one or two climax species, goes along with an increase in the level of genetic diversity. Forest tree communities with the highest degree of species diversity exhibit therefore the highest transspecific genetic diversity per species. This result was discussed with regard to the particular composition and stability of forest tree communities."],["dc.identifier.doi","10.1007/s11258-005-9091-2"],["dc.identifier.isi","000238501900013"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/33257"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Springer"],["dc.relation.issn","1385-0237"],["dc.title","Is there a trade-off between species diversity and genetic diversity in forest tree communities?"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]