Výsledky vyhledávání - "Sigrid Drage"

Akademický článek

Antimicrobial Drimane Sesquiterpenes Contribute to Balanced Antagonism but Do Not Structure Bacterial and Fungal Endophytes in the African Pepper Bark Tree Warburgia ugandensis

Autor: Sigrid Drage, Birgit Mitter, Doris Engelmeier, Vladimir Chobot, Markus Gorfer, Alice Muchugi, Ramni H. Jamnadass, Angela Sessitsch, Franz Hadacek

Publikováno v: Frontiers in Ecology and Evolution, Vol 5 (2017)

The African pepper bark tree, Warburgia ugandensis, accumulates antimicrobial drimane sesquiterpenes in all of its organs. One hypothesis states that plant defense compounds determine endophyte community structure. Another hypothesis suggests that th

Externí odkaz: https://doaj.org/article/8831ca3471bf4c699f7c9ec98b24ebb1

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Sensitivity of tropical forest aboveground productivity to climate anomalies in SW Costa Rica

Autor: Florian Hofhansl, Joachim Ofner, Eva-Maria Pölz, Johannes Kobler, Wolfgang Wanek, Sigrid Drage

Publikováno v: Global Biogeochemical Cycles. 28:1437-1454

The productivity of tropical forests is driven by climate (precipitation, temperature, and light) and soil fertility (geology and topography). While large-scale drivers of tropical productivity are well established, knowledge on the sensitivity of tr

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::542a1eb341b001a3b2e54cdd3717eb45
https://doi.org/10.1002/2014gb004934

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Controls of hydrochemical fluxes via stemflow in tropical lowland rainforests: Effects of meteorology and vegetation characteristics

Autor: Florian Hofhansl, Andreas Richter, Sigrid Drage, Wolfgang Wanek, Werner Huber, Anton Weissenhofer

Publikováno v: Journal of Hydrology. :247-258

summary So far stemflow has been underrepresented in studies of ecosystem ecology as it usually contributes less than 10% to hydrological input to the forest floor. However, in terms of nutrient cycling, stemflow may constitute an important pathway f

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::13ee0538af8d54ebba21d5df99d01318
https://doi.org/10.1016/j.jhydrol.2012.05.057

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Combining microdilution with MicroResp™: Microbial substrate utilization, antimicrobial susceptibility and respiration

Autor: Gert Bachmann, Doris Engelmeier, Sigrid Drage, Angela Sessitsch, Birgit Mitter, Franz Hadacek

Publikováno v: Journal of Microbiological Methods. 88:399-412

article i nfo Pharmacological studies focus on susceptibility of pathogenic microbes against specific drugs or combinations of them, ecological studies on substrate utilization efficiency of variable microbial communities. The Micro- Resp™ system w

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6e262b3b772eb7948a80a09dcb902381
https://doi.org/10.1016/j.mimet.2012.01.006

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Topography strongly affects atmospheric deposition and canopy exchange processes in different types of wet lowland rainforest, Southwest Costa Rica

Autor: Wolfgang Wanek, Andreas Richter, Florian Hofhansl, Anton Weissenhofer, Werner Huber, Sigrid Drage

Publikováno v: Biogeochemistry. 106:371-396

Bulk precipitation and throughfall were collected in a wet lowland rainforest in SW Costa Rica on an event basis to allow modelling the contributions of dry deposition and canopy exchange to nutrient inputs and internal cycling of nutrients. Estimate

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::27762041204cc062dd79c58d78730f8b
https://doi.org/10.1007/s10533-010-9517-3

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Antimicrobial drimane sesquiterpenes and their effect on endophyte communities in the medical tree Warburgia ugandensis

Autor: Sigrid Drage, Birgit Mitter, Christina Tröls, Alice Muchugi, Ramni H. Jamnadass, Angela Sessitsch, Franz Hadacek

Publikováno v: Frontiers in Microbiology, Vol 5 (2014)

Metabolite profiles (GC–MS), drimane sesquiterpenes, sugars and sugar alcohols, were compared with bacterial and fungal endophyte communities (T-RFLP, DNA clones, qPCR) in leaves and roots of the pepper bark tree, Warburgia ugandensis (Canellaceae)

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7905b1449b65afedc60ab592ca743c11
http://journal.frontiersin.org/Journal/10.3389/fmicb.2014.00013/full

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Redox Properties of 8-Quinolinol and Implications for its Mode of Action

Autor: Franz Hadacek, Vladimir Chobot, Sigrid Drage

Publikováno v: Natural Product Communications. 6:1934578X1100600

8-Quinolinol (oxine, 8-hydroxyquinoline) is a simple aromatic alkaloid with allelopathic, antibacterial, antifungal, and cytotoxic activities. Generally, it is assumed that 8-quinolinol toxicity depends on transition metal chelation that negatively a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::15f5ebd37e115f598e0a0deb3fe78059
https://doi.org/10.1177/1934578x1100600505

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