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13 results for “Marine-Derived”
Experimental addition of marine-derived nutrients affects wildflower traits in a coastal meta-ecosystem
<p>Organismal movement can bring individuals, resources, and novel interactions across ecosystem boundaries and into recipient habitats, thereby forming meta-ecosystems. For example, Pacific salmon ecosystems receive large marine-derived nitrogen subsidies during annual spawning events, which can have a wide range of effects on aquatic and terrestrial plant species and communities. In this study, we evaluate the effects of cross-ecosystem nutrient subsidies on terrestrial plant growth and reproduction. We conducted a large-scale field experiment with four treatments: (1) addition of a pink salmon (<em>Oncorhynchus</em> <em>gorbuscha</em>) carcass, (2) addition of the drift seaweed rockweed (<em>Fucus</em> <em>distichus</em>), (3) addition of both salmon + rockweed, and (4) a control. We examined treatment effects on leaf nitrogen and fitness-associated floral traits in four common estuarine wildflower species. We found elevated leaf ∂<sup>15</sup>N in all plant species and all sampling years in treatments with salmon carcass additions but did not observe any differences in leaf percent nitrogen. We also observed larger leaf area in two species, a context-dependent increase in floral display area in two species, and a limited increase in plant seed set in response to both salmon carcass treatments. In sum, our study suggests that marine nutrients can affect terrestrial plant growth and reproduction.</p>
Experimental addition of marine-derived nutrients affects wildflower traits in a coastal meta-ecosystem
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Fig. 1 in Evolutionary biogeography of the freshwater fish family Anablepidae (Teleostei: Cyprinodontiformes), a marine-derived Neotropical lineage
Fig. 1 Map showing the eight areas selected in the Neotropical region overlaid with the ecoregions defined by Abell et al. (2008). These areas were selected based on Amorim and Costa (2019) and Frota et al. (2019). For details, see the "Materials and methods" section
Fig. 3 in Evolutionary biogeography of the freshwater fish family Anablepidae (Teleostei: Cyprinodontiformes), a marine-derived Neotropical lineage
Fig. 3 Cladograms showing the results of Brooks Parsimony Analysis and the historical relationships among the selected areas using Anablepidae as a case study. The two most parsimonious general area cladograms are represented by a and b. Note that the positions of the Iguaçu River basin and Southeastern Brazil are decisive for biogeographic interpretations. The strict consensus cladogram is
Data from: Strain identification and quorum sensing inhibition characterization of marine-derived Rhizobium sp. NAO1
A novel strategy for combating pathogens is through the ongoing development and use of anti-quorum sensing (QS) treatments such as therapeutic bacteria or their anti-QS substances. Relatively little is known about the bacteria that inhabit the open ocean and of their potential anti-pathogenic attributes; thus, in an initiative to identify these types of therapeutic bacteria, planktonic microbes from the North Atlantic Ocean were collected, isolated, cultured and screened for anti-QS activity. Screening analysis identified one such strain, Rhizobium sp. NAO1. Extracts of Rhizobium sp. NAO1 were identified via ultra-performance liquid chromatography (UPLC) analysis. They were shown to contain N-acyl homoserine lactone (AHL)-based QS analogues (in particular, the N-butyryl homoserine lactone (C4-AHL) analogue) and could disrupt biofilm formation by Pseudomonas aeruginosa PAO1. QS inhibition was confirmed using confocal scanning laser microscopy and growth curves, and it was shown to occur in a dose-dependent manner without affecting bacterial growth. Secondary metabolites of Rhizobium sp. NAO1 inhibited PAO1 pathogenicity by downregulating AHL-mediated virulence factors such as elastase activity and siderophore production. Furthermore, as a result of biofilm structure damage, the secondary metabolite products of Rhizobium sp. NAO1 significantly increased the sensitivity of PAO1 to aminoglycoside antibiotics. Our results demonstrated that Rhizobium sp. strain NAO1 has the ability to disrupt P. aeruginosa PAO1 biofilm architecture, in addition to attenuating P. aeruginosa PAO1 virulence factor production and pathogenicity. Therefore, the newly identified ocean-derived Rhizobium sp. NAO1 has the potential to serve as a QS inhibitor and may be a new microbial resource for drug development.
Fig. 2 in Polyketides, diketopiperazines and an isochromanone from the marine-derived fungal strain Fusarium graminearum FM1010 from Hawaii
Fig. 2. Key COSY (bolds) and HMBC (red arrows) correlations of compound 1–4, and 6. (For interpretation of the references to colour in this figure legend, the reader is referred to the Web version of this article.)
Data from: Strain identification and quorum sensing inhibition characterization of marine-derived Rhizobium sp. NAO1
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Fig. 1 in Polyketides, diketopiperazines and an isochromanone from the marine-derived fungal strain Fusarium graminearum FM1010 from Hawaii
Fig. 1. Chemical structures of compounds 1–6.
Fig. 3 in Polyketides, diketopiperazines and an isochromanone from the marine-derived fungal strain Fusarium graminearum FM1010 from Hawaii
Fig. 3. Experimental and calculated ECD of compound 6.
a New Marine-Derived Asterosaponin (CN-3) alleviated the proliferation of U251 MG cells
GEO Series GSE108343. Homo sapiens. 6 samples. Type: Expression profiling by array.
Global Transcript Changes In Human Keratinocyte Cells Induced by Apratyramide, a Marine-Derived Peptidic Stimulator of VEGF-A and Other Growth Factors
GEO Series GSE102100. Homo sapiens. 8 samples. Type: Expression profiling by array.
Fig. 2 in Evolutionary biogeography of the freshwater fish family Anablepidae (Teleostei: Cyprinodontiformes), a marine-derived Neotropical lineage
Fig. 2 Area cladogram obtained based on the phylogenetic trees published by a Aguilera et al. (2019) and b Amorim and Costa (2019). Components are numbered from 1 to 21 and from 1 to 20, respectively. Areas are represented by the letters A to H according to Fig. 1 and description in the "Materials and methods" section
Zalypsis: A novel marine-derived compound with potent antimyeloma activity
GEO Series GSE13662. Homo sapiens. 8 samples. Type: Expression profiling by array.
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Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.