@misc{SutLohmannBoldtBurischPohleetal., author = {Sut-Lohmann, Magdalena and Boldt-Burisch, Katja and Pohle, Ina and Raab, Thomas}, title = {Advancing performance of green technologies for remediation and reclamation of degraded urban soils}, publisher = {United Nations University, Institute for Integrated Management of Material Fluxes and of Resources}, address = {Dresden}, isbn = {978-3-944863-18-4}, pages = {S. 61}, language = {en} } @inproceedings{BoldtBurischNaeth, author = {Boldt-Burisch, Katja and Naeth, M. Anne}, title = {The influence of arbuscular mycorrhizae on root precision nutrient foraging of two pioneer plant species during early reclamation}, series = {European Geosciences Union General Assembly 2017 Vienna, Austria, 23-28 April 2017}, booktitle = {European Geosciences Union General Assembly 2017 Vienna, Austria, 23-28 April 2017}, publisher = {European Geophysical Society}, address = {Katlenburg-Lindau}, abstract = {On many post mining sites in the Lusatian Mining District (East Germany) soil heterogeneity consists of sandy soil with embedded clay-silt fragments. Those clays silt fragments might act as nutrient hotspots. Arbuscular mycorrhizal fungi in an infertile ecosystem could enhance a plant's ability to selectively forage for those nutrients and thus to improve plants nutrient supply. In our study we investigated whether silt-clay fragments within a sandy soil matrix induced preferential root growth of Lotus corniculatus and Calamagrostis epigeios, whether arbuscular mycorrhizae influenced root foraging patterns, and to what extent selective rooting in clay silt fragments influenced plant growth were addressed in this research. Soil types were sterile and non-sterile sandy soil and clay-silt fragments. Treatments were with and without arbuscular mycorrhizae, with and without soil solution, and soil solution and mycorrhizal inoculum combined. Root biomass, root density and intraradical fungal alkaline phosphatase activity and frequency were determined in fragments relative to sandy soil. Furthermore, temporal relationship of number of roots in fragments and plant height was assessed. Lotus corniculatus showed strong selective rooting into fragments especially with those plants treated with commercial cultivated arbuscular mycorrhizae; Calamagrostis epigeios did not. Without arbuscular mycorrhizae, L. corniculatus growth was significantly reduced and selective rooting did not occur. Selective rooting induced significant growth spurts of L. corniculatus. Roots in fragments had higher fungal alkaline phosphatase activity suggesting that mycorrhizal efficiency and related plants phosphorus supply is enhanced in roots in fragments. The application of cultivated arbuscular mycorrhizal fungi significantly and quickly influenced root foraging patterns, especially those of L. corniculatus, suggesting mycorrhizae may also enhance the ability of other plants to selectively forage for nutrients and could therefore play an important role in early plant establishment on infertile reclamation sites.}, language = {en} } @misc{FeldererBoldtBurischSchneideretal., author = {Felderer, Bernd and Boldt-Burisch, Katja and Schneider, Bernd Uwe and H{\"u}ttl, Reinhard F. and Schulin, Rainer}, title = {Root growth of Lotus corniculatus interacts with P distribution in young sandy soil}, series = {Biogeosciences Discussion}, volume = {9}, journal = {Biogeosciences Discussion}, number = {7}, issn = {1810-6285}, pages = {9637 -- 9665}, language = {en} } @inproceedings{BoldtBurischFritschSchneideretal., author = {Boldt-Burisch, Katja and Fritsch, Simone and Schneider, Bernd Uwe and H{\"u}ttl, Reinhard F.}, title = {Erste Ergebnisse zur Bedeutung des Wurzelwachstums f{\"u}r die Bodenentwicklung in der intialen Phase der {\"O}kosystemgenese}, series = {Mikrobielle {\"O}kologie des Wurzelraumes, 21. Borkheider Seminar zur {\"O}kophysiologie des Wurzelraumes, Lutherstadt Wittenberg vom 23. - 24. September 2010}, booktitle = {Mikrobielle {\"O}kologie des Wurzelraumes, 21. Borkheider Seminar zur {\"O}kophysiologie des Wurzelraumes, Lutherstadt Wittenberg vom 23. - 24. September 2010}, editor = {Merbach, Wolfgang and Ruppel, Silke and Augustin, J{\"u}rgen}, publisher = {K{\"o}ster}, address = {Berlin}, isbn = {978-3-89574-764-9}, pages = {49 -- 55}, language = {de} } @inproceedings{BoldtBurischSchneiderFritschetal., author = {Boldt-Burisch, Katja and Schneider, Bernd Uwe and Fritsch, Simone and H{\"u}ttl, Reinhard F.}, title = {Charakterisierung der Wurzelwachstumsdynamik krautiger Vegetation in der initialen Phase der Bodenentwicklung}, series = {B{\"o}den verstehen - B{\"o}den nutzen - B{\"o}den fit machen, Jahrestagung der Deutschen Bodenkundlichen Gesellschaft, 3. - 9. September 2011}, booktitle = {B{\"o}den verstehen - B{\"o}den nutzen - B{\"o}den fit machen, Jahrestagung der Deutschen Bodenkundlichen Gesellschaft, 3. - 9. September 2011}, language = {de} } @misc{BoldtBurischSchneiderNaethetal., author = {Boldt-Burisch, Katja and Schneider, Bernd Uwe and Naeth, M. Anne and H{\"u}ttl, Reinhard F.}, title = {Root exudation of organic acids of herbaceous pioneer plants and their growth in steriled and non-steriled nutrient-poor, sandy soils from post-mining sites}, series = {Pedosphere}, volume = {29}, journal = {Pedosphere}, number = {1}, issn = {1002-0160}, doi = {10.1016/S1002-0160(18)60056-6}, pages = {34 -- 44}, abstract = {Nutrient-poor, sandy soils form the prevailing substrate at post-mining sites and present a challenge for plants. We studied the organic acid quantity and composition of three commonly occurring pioneer plant species, the legumes Lotus corniculatus L. and Trifolium arvense L. and the grass Calamagrostis epigeios (L.) Roth, to determine if plant growth and exudation differed with (nonsterile soil) and without (sterile soil) an indigenous soil microbial community. We investigated whether organic acids were found in the rhizosphere and surrounding soil and whether this influenced nutrient mobilization. This study consists of linked field investigations and a greenhouse experiment. Plants were grown in the greenhouse in either steriled or non-steriled sandy soil from a reclamation site in the Lusatian mining landscape (Welzow S¨ud, East Germany). After seven months, the plant biomass, root morphology, organic acids, and water-soluble nutrients and root colonization with arbuscular mycorrhizal fungi (AMF) and dark septate endophytes (DSE) were analyzed. Roots of all three plants in the field and greenhouse experiments were highly colonized with AMF. Calamagrostis epigeios and T. arvense had a significantly higher colonization frequency with DSE than L. corniculatus. The quantity and composition of organic acids strongly differed among plant species, with the highest number of organic acids found for L. corniculatus and lowest for C. epigeios. The quantity of organic acids was greatly reduced in all plants under steriled soil conditions. However, the composition of organic acids and plant growth in steriled soil were reduced for both legumes, but not for C. epigeios, which had a higher biomass under steriled conditions. Changes in nutrient concentrations in the field rhizosphere soil relative to those in the control were measurable after seven months. While the spectrum of organic acids and the growth of legumes seemed to be dependent on a highly diverse soil microbial community and a symbiotic partner, the grass C. epigeios appeared capable of mobilizing enough nutrients without an indigenous microbial community, and might be more competitive on sites where soil microbial diversity and activity are low.}, language = {en} } @misc{BoldtBurischNaethSchneideretal., author = {Boldt-Burisch, Katja and Naeth, M. Anne and Schneider, Bernd Uwe and H{\"u}ttl, Reinhard F.}, title = {Linkage between root system development of three pioneer plant species and soil nitrogen during the initial phase of ecosystem development of the artificial watershed H{\"u}hnerwasser}, series = {Geophysical Research Abstracts}, volume = {21}, journal = {Geophysical Research Abstracts}, pages = {1}, abstract = {ln 2005, a 7-ha artificial watershed (H{\"u}hnerwasser) was built an a post mined Iandscape in Lusatia, Germany from sandy Substrates of Pleistocene origin, commonly used in reclamation. The watershed was developed to investigate the initial phase of soil and ecosystem development under natural conditions. At this early stage, nutrients in young sandy soils are limited and pioneer plants become key components of natural succession. Local abundant pioneering legumes Lotus corniculatus and Trifolium arvense and one pioneer grass species Calamagrostis epigeios were investigated 5 years after watershed construction. ln the present study, we investigated the influence of spatial root distribution of these species an soil nitrogen accumulation and on nutrient redistribution. Soil, including roots, was sampled from field monoliths covered with the aforementioned plant species. Root systems of both legumes were mainly restricted to the upper 20 cm of soil, whereas roots of C. epigeios also developed strongly at greater depths. A positive relationship was found, with higher plant densities associated with higher root densities, which were related with higher nodule densities for legumes and which were all associated with significantly higher soil nitrogen concentration relative to non-vegetated areas. This research provides rare information on the role root systems of pioneer legumes play in soil nitrogen input and development of nutrient patterns in the early stage of soil and ecosystem development during revegetation by natural succession.}, language = {en} } @inproceedings{SutLohmannBoldtBurischRaab, author = {Sut-Lohmann, Magdalena and Boldt-Burisch, Katja and Raab, Thomas}, title = {Effect of ryegrass (Lolium perenne L.) roots inoculation using different arbuscular mycorrhizal fungi (AMF) species on sorption of iron-cyanide (Fe-CN) complexes}, series = {European Geosciences Union, General Assembly 2016, Vienna, Austria, 17 April - 22 May 2016}, booktitle = {European Geosciences Union, General Assembly 2016, Vienna, Austria, 17 April - 22 May 2016}, publisher = {European Geophysical Society}, address = {Katlenburg-Lindau}, abstract = {Soils and groundwater on sites of the former Manufactured Gas Plants (MGPs) are contaminated with various complex iron-cyanides (Fe-CN). Phytoremediation is a promising tool in stabilization and remediation of Fe-CN affected soils, however, it can be a challenging task due to extreme adverse and toxic conditions. Phytoremediation may be enhanced via rhizosphere microbial activity, which can cooperate on the degradation, transformation and uptake of the contaminants. Recently, increasing number of scientist reports improved plants performance in the removal of toxic compounds with the support of arbuscular mycorrhizae fungi (AMF). Series of batch experiments using potassium hexacyanoferrate (II) solutions, in varying concentrations, were used to study the effect of ryegrass roots (Lolium perenne L.) inoculation with Rhizophagus irregularis and a mixture of Rhizophagus irregularis, Funneliformis mosseae, Rhizophagus aggregatus, and Claroideoglomus etunicatum on Fe-CN sorption. Results indicated significantly higher colonization of R. irregularis than for the mixture of AMF species on ryegrass roots. Sorption experiments revealed significantly higher reduction of total CN and free CN content in the mycorrhizal roots, indicating greater cyanide decrease in the treatment inoculated with R. irregularis. Our study indicates contribution of AM fungi in phytoremediation of Fe-CN contaminated soil.}, language = {en} } @inproceedings{ZaplataMaurerBoldtBurischetal., author = {Zaplata, Markus Klemens and Maurer, Thomas and Boldt-Burisch, Katja and Schaaf, Wolfgang and Hinz, Christoph}, title = {An interactive survey panel regarding the effects of mice (Microtus spec.) on a young ecosystem}, series = {European Geosciences Union, General Assembly 2015, Vienna, Austria, 13 April - 17 May 2015}, booktitle = {European Geosciences Union, General Assembly 2015, Vienna, Austria, 13 April - 17 May 2015}, publisher = {European Geophysical Society}, address = {Katlenburg-Lindau}, language = {en} } @phdthesis{BoldtBurisch, author = {Boldt-Burisch, Katja}, title = {Einfluss des Wurzelwachstums dominanter Pionierpflanzenarten auf die Bodenentwicklung in der initialen Phase der {\"O}kosystemgenese}, publisher = {BTU, LS Bodenschutz und Rekultivierung}, address = {Cottbus}, pages = {137}, abstract = {Im Rahmen der vorliegenden Arbeit wurden Untersuchungen zu Interaktionen zwischen pleistoz{\"a}nem Kipprohsubstrat und den auf dem „H{\"u}hnerwasser"-Einzugsgebiet vorkommenden abundanten Pionierpflanzenarten L. corniculatus, C. epigeios und T. arvense durchgef{\"u}hrt, um deren Bedeutung f{\"u}r die initiale Bodenentwicklung zu analysieren. Die Studien umfassten Untersuchungen zur r{\"a}umlichen Wurzelverteilung, zur Wurzelmorphologie, zur N{\"a}hrstoffanreicherung, -aufnahme und -umverteilung im Boden, sowie zur Exsudation organischer S{\"a}uren und zu den Konkurrenzeffekten der drei Pflanzenarten w{\"a}hrend der Keimung.}, language = {de} }