Johanna Gutleben
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View article: Extremophile hotspots linked to containerized industrial waste dumping in a deep-sea basin
Extremophile hotspots linked to containerized industrial waste dumping in a deep-sea basin Open
Decaying barrels on the seafloor linked to DDT contamination have raised concerns about the public health implications of decades old industrial waste dumped off the coast of Los Angeles. To explore their contents, we collected sediment co…
View article: Sponges from Lembeh Strait: antimicrobial activity and prokaryotic diversity
Sponges from Lembeh Strait: antimicrobial activity and prokaryotic diversity Open
Aims This study aims to assess the antimicrobial activity of sponges from Lembeh Strait, explore their prokaryotic diversity, and investigate correlations between sponge antimicrobial activities and their associated prokaryotic communities…
View article: Identification of DDT+ in Deep Ocean Sediment and Biota in the Southern California Bight
Identification of DDT+ in Deep Ocean Sediment and Biota in the Southern California Bight Open
The recent rediscovery of offshore DDT waste dumping in the Southern California Bight (SCB) has led to questions about the extent and type of pollution in deep ocean environments. We used a nontargeted analysis to identify halogenated orga…
View article: Comparative genomic analysis of Flavobacteriaceae: insights into carbohydrate metabolism, gliding motility and secondary metabolite biosynthesis
Comparative genomic analysis of Flavobacteriaceae: insights into carbohydrate metabolism, gliding motility and secondary metabolite biosynthesis Open
View article: Comparative genomic analysis of Flavobacteriaceae: insights into carbohydrate metabolism, gliding motility and secondary metabolite biosynthesis.
Comparative genomic analysis of Flavobacteriaceae: insights into carbohydrate metabolism, gliding motility and secondary metabolite biosynthesis. Open
BackgroundMembers of the bacterial family Flavobacteriaceae are widely distributed in the marine environment and often found associated with algae, fish, detritus or marine invertebrates. Yet, little is known about the characteristics that…
View article: Cultivation of Bacteria From Aplysina aerophoba: Effects of Oxygen and Nutrient Gradients
Cultivation of Bacteria From Aplysina aerophoba: Effects of Oxygen and Nutrient Gradients Open
Sponge-associated bacteria possess biotechnologically interesting properties but as yet have largely evaded cultivation. Thus, "omics"-based information on the ecology and functional potential of sponge symbionts is awaiting its integratio…
View article: Additional file 3 of Comparative genomic analysis of Flavobacteriaceae: insights into carbohydrate metabolism, gliding motility and secondary metabolite biosynthesis
Additional file 3 of Comparative genomic analysis of Flavobacteriaceae: insights into carbohydrate metabolism, gliding motility and secondary metabolite biosynthesis Open
Additional file 3: List of proteins involved in gliding motility and type 9 secretion in F. johnsoniae UW101 and P. gingivalis W83 used in the comparative genomics analysis.
View article: Additional file 4 of Comparative genomic analysis of Flavobacteriaceae: insights into carbohydrate metabolism, gliding motility and secondary metabolite biosynthesis
Additional file 4 of Comparative genomic analysis of Flavobacteriaceae: insights into carbohydrate metabolism, gliding motility and secondary metabolite biosynthesis Open
Additional file 4: Frequencies and Abundances of CAZymes and PULs in different taxonomic groups and Flavobacteriaceae clades.
View article: Diversity of tryptophan halogenases in sponges of the genus Aplysina
Diversity of tryptophan halogenases in sponges of the genus Aplysina Open
Marine sponges are a prolific source of novel enzymes with promising biotechnological potential. Especially halogenases, which are key enzymes in the biosynthesis of brominated and chlorinated secondary metabolites, possess interesting pro…
View article: Ecological and biotechnological aspects of Aplysina-associated microorganisms
Ecological and biotechnological aspects of Aplysina-associated microorganisms Open
The research described in this thesis had the goal to increase our understanding of marine sponge microbial ecology by integrating both cultivation-dependent and –independent approaches. Simultaneously, steps towards accessing the biotechn…
View article: Expressed protein profile of a Tectomicrobium and other microbial symbionts in the marine sponge Aplysina aerophoba as evidenced by metaproteomics
Expressed protein profile of a Tectomicrobium and other microbial symbionts in the marine sponge Aplysina aerophoba as evidenced by metaproteomics Open
View article: The multi-omics promise in context: from sequence to microbial isolate
The multi-omics promise in context: from sequence to microbial isolate Open
The numbers and diversity of microbes in ecosystems within and around us is unmatched, yet most of these microorganisms remain recalcitrant to in vitro cultivation. Various high-throughput molecular techniques, collectively termed multi-om…