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544 results for “ammonium”
SUCCES3 cruise biogeochemical dataset (1): SuperSucker data, ammonium and nitrate+nitrite
<p>High-frequency beogeochemical dataset of cross-sections along the central Oregon shelf acquired during the cruise SUCCES3, from 30 July to 10 August 2009. The dataset includes:</p> <p>- Day of year (UTC), longitude (W), latitude (N), profile number.</p> <p>- SuperSucker data: altitude from seabed (m), depth in the water column (m), distance from start of the transect (km), distance from coast (km), bottom depth (m), pressure (dbar), temperature (C), salinity, density anomaly (calculated from pressure, temperature and salinity, kg m<sup>-3</sup>), dissolved oxygen (calibrated with discrete samples, µM), and beam attenuation (m<sup>-1</sup>).</p> <p>- <em>In situ</em> dissolved inorganic nutrients analysis: ammonium (µM) and nitrate+nitrite (µM).</p> <p>Continuous biogeochemical <em>in situ</em> data were processed first correcting with standards, after, filtering to remove extreme values, and finally, synchronizing with depth and temperature based on a known sample-flow lag based on <em>in situ</em> and surface salinity measurements.</p>
Data from: Plant ammonium sensitivity is associated with the external pH adaptation, repertoire of nitrogen transporters, and nitrogen requirement
<p>Modern crops exhibit diverse sensitivities to ammonium as the primary nitrogen source, influenced by environmental factors such as external pH and nutrient availability. Despite its significance, there is currently no systematic classification of plant species based on their ammonium sensitivity. This study conducts a meta-analysis of 50 plant species and presents a new classification method based on the comparison of fresh biomass obtained under ammonium and nitrate nutrition. The classification uses the natural logarithm of biomass ratio as the size effect indicator of ammonium sensitivity. This numerical parameter is associated with critical factors for nitrogen demand and form preference, such as Ellenberg indicators and the repertoire of nitrogen transporters for ammonium and nitrate uptake. Finally, a comparative analysis of the developmental and metabolic responses, including hormonal balance, is conducted in two species with divergent ammonium sensitivity values in the classification. Results indicate that nitrate has a key counteracting role of ammonium toxicity in species with a higher abundance of genes encoding NRT2-type proteins and fewer of the AMT2-type proteins. Additionally, the study confirms the reliability of the phytohormone balance and methylglyoxal content as indicators for anticipating ammonium toxicity.</p>
Fig 2 in Study of haematology profile & histopathological changes in di-ammonium phosphate induced climbing perch, Anabas testudineus (Bloch.)
Fig 2: Showing the effect of Di-ammonium phosphate on Neutrophil, Monocytes, Basophil in Anabas testudineus (96 hrs) *P<0.05, *** P<0.001
Fig 7.A in Study of haematology profile & histopathological changes in di-ammonium phosphate induced climbing perch, Anabas testudineus (Bloch.)
Fig 7.A: Photomicrograph of the testes of Anabas testudineus control fish showing sperm (SP), spermatogonia (SG), spermitide (ST), secondary spermatocyte (SS), primary spermocytes (PS). H.&E., 200X
Fig 3 in Study of haematology profile & histopathological changes in di-ammonium phosphate induced climbing perch, Anabas testudineus (Bloch.)
Fig 3: Showing the effect of Di-ammonium phosphate on Lymphocytes, Eosinophil, PCV, in Anabas testudineus (96 hrs) ** P<0.01
Fig 4.B in Study of haematology profile & histopathological changes in di-ammonium phosphate induced climbing perch, Anabas testudineus (Bloch.)
Fig 4.B: Photomicrograph of the liver of Anabas testudineus treated with DAP- 0.092 g/L for 20 days showing hemorrhagic liver tissue, blood congestion and necrotic cells. H. & E., 100X
Fig 5.B in Study of haematology profile & histopathological changes in di-ammonium phosphate induced climbing perch, Anabas testudineus (Bloch.)
Fig 5.B: Photomicrograph of kidney of A. testudineus treated with DAP-0.092 g/l for 20 days showing degeneration of renal tubular epithelium, vacuolation and necrosis of renal tubules along with infiltration and necrosis of melanomacrophage center (arrow). H.&E., 20X
Fig 1 in Study of haematology profile & histopathological changes in di-ammonium phosphate induced climbing perch, Anabas testudineus (Bloch.)
Fig 1: Showing the effect of Di-ammonium phosphate on Hb, RBC, WBC in Anabas testudineus (96 hrs) ***P<0.001
Fig 8.B in Study of haematology profile & histopathological changes in di-ammonium phosphate induced climbing perch, Anabas testudineus (Bloch.)
Fig 8.B: Photomicrograph of the ovary of Anabas testudineus treated with DAP- 0.092 g/L for 20 days showing (NU) Nucleolus condensed, (CT) Connective tissue degenerate (AF) Atretic follicle & (FW) Follicular wall disrupted. H.&E., 200X.
Fig 8.A in Study of haematology profile & histopathological changes in di-ammonium phosphate induced climbing perch, Anabas testudineus (Bloch.)
Fig 8.A: Photomicrograph of the ovary of Anabas testudineus control fish showing (OW) Ovarian wall, (FE) Follicular epithelium, (N) Nucleus, (NU) Nucleolus, (OC) Oocyte. H.&E., 200X
Fig 5.A in Study of haematology profile & histopathological changes in di-ammonium phosphate induced climbing perch, Anabas testudineus (Bloch.)
Fig 5.A: Photomicrograph of kidney of Anabas testudineus from control group showing normal. H.&E., 200X
Fig 7.B in Study of haematology profile & histopathological changes in di-ammonium phosphate induced climbing perch, Anabas testudineus (Bloch.)
Fig 7.B: Photomicrograph of the testes of Anabas testudineus treated with DAP- 0.092 g/L for 20 days showing sperm (SP), spermatogonia condensation (SG), spermitide (ST), secondary spermatocyte vacuolation (SS). H.&E., 200x
Fig 6.B in Study of haematology profile & histopathological changes in di-ammonium phosphate induced climbing perch, Anabas testudineus (Bloch.)
Fig 6.B: Photomicrograph of Intestine tissue of A. testudineus exposed to DAP- 0.092 g/L for 20 days showing desquamation (orange arrow) and mononuclear cell infiltration (MHI) (arrow). H.&E. 120X
Fig 6.A in Study of haematology profile & histopathological changes in di-ammonium phosphate induced climbing perch, Anabas testudineus (Bloch.)
Fig 6.A: Photomicrograph of Intestine tissue of A. testudineus in control group showing normal appearance of circular muscles, longitudinal muscles, serosa and villi. H.&E., 120X.
Figure 1 in Characterization of glutamine synthetase from the ammonium-excreting strain HM053 of Azospirillum brasilense
Figure 1. Transferase activity of glutamine synthetase. (A) Transferase activity of wild-type glutamine synthetase in the absence and presence of magnesium as well as with snake venom phosphodiesterase treatment; (B) Transferase activity of P347L glutamine synthetase in the absence and presence of magnesium, and with snake venom phosphodiesterase treatment. The activity of GS is expressed in µmol γ-glutamyl-hydroxamate.min-1.mg protein-1, given that the absorbance of 530 nm of 1 µmolγ-glutamylhydroxamate was 0.054. The total activity was determined in the absence of Mg2+ (-Mg2+) and the non-adenylylated (active) fraction was determined in the presence of 60 mM Mg2+ (+Mg2+). Samples were incubated at 30 ºC for 0, 10, 30 and 60 min before measuring activity. SVP-treated GS samples (+ SVP) were incubated with snake venom phosphodiesterase. GS activity reactions contained 3 µg of protein.
Figure 3 in Characterization of glutamine synthetase from the ammonium-excreting strain HM053 of Azospirillum brasilense
Figure 3. Prediction of the structure of glutamine synthetase from the mutant P347L. (A) Prediction of the P347L-GS structure. The amino acid marked in pink corresponds to leucine in strain HM053; (B) b1) Prediction structure of wild-type GS from amino acid 346 to 361. b2) Prediction structure of P347L-GS from amino acid 346 to 361. b3) Alignment of prediction structures of wildtype GS and P347L GS from amino acid 346 to 361. The amino acid marked in blue corresponds to the proline that is mutated in strain HM053. The amino acid marked in pink is leucine that replaced proline in the mutated amino acid in strain HM053.
Figure 2 in Characterization of glutamine synthetase from the ammonium-excreting strain HM053 of Azospirillum brasilense
Figure 2. Western blot assays of glutamine synthetase after treatment with snake venom phosphodiesterase. Samples (~ 0.3 µg GS protein) were separated by SDS‐PAGE followed by Western blotting with an anti‐GS antibody. A) Wild-type glutamine synthetase; B) P347L glutamine synthetase. Lane 1: GS after 0 min of incubation at 30 ºC without any treatment; lanes 2 to 5: GS after 0, 10, 30 and 60 min incubation at 30 ºC with snake venom phosphodiesterase. Lane 6: GS after 60 min incubation at 30 ºC without treatment.
Fig. 2 in Attraction of Bactrocera cucurbitae and Bactrocera dorsalis (Diptera: Tephritidae) to beer waste and other protein sources laced with ammonium acetate
Fig. 2. Response of males of Bactrocera cucurbitae and B. dorsalis to GF-120® NF Naturalyte® Fruit Fly Bait (= GF-120), Bugs for Bugs® Fruit Fly Bait (= Bugs for Bugs), Buminal® (= Buminal), and water (negative control) either in the absence (A), or presence (B) of ammonium acetate (= AA). For each species, different letters (lowercase: B. cucurbitae; uppercase: B. dorsalis) indicate significant differences according to ANOVA and the Fisher LSD tests at P ≤ 0.05.
Fig. 3 in Attraction of Bactrocera cucurbitae and Bactrocera dorsalis (Diptera: Tephritidae) to beer waste and other protein sources laced with ammonium acetate
Fig. 3. Response of females of Bactrocera cucurbitae and B. dorsalis to GF- 120® NF Naturalyte® Fruit Fly Bait (= GF-120), Bugs for Bugs® Fruit Fly Bait (= Bugs for Bugs), Buminal® (= Buminal), and water (negative control) either in the absence (A), or presence (B) of ammonium acetate (= AA). For each species, different letters (lowercase: B. cucurbitae; uppercase: B. dorsalis) indicate significant differences according to ANOVA and the Fisher LSD tests at P ≤ 0.05.
Fig. 1 in Attraction of Bactrocera cucurbitae and Bactrocera dorsalis (Diptera: Tephritidae) to beer waste and other protein sources laced with ammonium acetate
Fig. 1. Response of adult males (A) and females (B) of Bactrocera cucurbitae and B. dorsalis in field cages to Nu-Lure® Insect Bait (= Nu-Lure), beer waste, Bugs for Bugs® Fruit Fly Bait (= Bugs for Bugs), and Buminal® (= Buminal) either alone or with added ammonium acetate (= AA) or ammonium carbonate (= AC). Water was used as a negative control. For each fly species and sex, different letters (lowercase: B. cucurbitae; uppercase: B. dorsalis) indicate significant differences according to ANOVA and the Fisher LSD tests at P ≤ 0.05.
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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)
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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.