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32 results for “Avicennia marina”
Fig. 5 in A metallothionein type 2 from Avicennia marina binds to iron and mediates hydrogen peroxide balance by activation of enzyme catalase
Fig. 5. The confirmation of binding of Fe2+ to the recombinant and pure AmMT2 in vitro. (A) The reaction of the Fe2+/AmMT2 with DTNB. (B) The comparison between UV absorption spectra of each of Apo/GST-AmMT2 and the corresponding complex Fe2+/GST-AmMT2.
Fig. 1 in A metallothionein type 2 from Avicennia marina binds to iron and mediates hydrogen peroxide balance by activation of enzyme catalase
Fig. 1. Amino acid sequence and expression vector maps. (A) The amino acid sequence of AmMT2. (B) The map of pET41a-AmMT2 and pET41a. The positions of His. tag, S. tag and GST. tag are shown in gray boxes.
Fig. 2 in A metallothionein type 2 from Avicennia marina binds to iron and mediates hydrogen peroxide balance by activation of enzyme catalase
Fig. 2. SDS-PAGE analysis of GST and GST–AmMT2. (A) Total soluble proteins extracted from E. coli harboring pET41a and pET41a-AmMT2 at 0, 1, 2, 3 and 4 h after addition of IPTG. (B) The GST-OsMTI-2b was purified using affinity chromatography (lane P). The white arrows show the bands corresponding to GST and the black arrows show the band corresponding to GST-AmMT2.
Fig. 4 in A metallothionein type 2 from Avicennia marina binds to iron and mediates hydrogen peroxide balance by activation of enzyme catalase
Fig. 4. Metal concentration variation in the medium of strains Control and RAmMT2 between T1 (6 h after addition of metal and IPTG to medium) and T0 (starting point of addition of metal). The data represent the mean ± SD obtained from two independent experiments with two replicates.
Fig. 3 in A metallothionein type 2 from Avicennia marina binds to iron and mediates hydrogen peroxide balance by activation of enzyme catalase
Fig. 3. Effect of heterologous expression of GST-OsMTI-3a on the tolerance of E. coli to Cd2+, Zn2+, Ni2+ Cu2+ and Fe2+. The data are the mean of two independent, experiments with two replicates.
Microsatellite data of 14 Avicennia marina populations from Mozambique Channel area
<p><a name="_Hlk506883412">Mangrove forests are dynamic ecosystems found along sheltered low-lying coastal plains in warm-temperate, tropical and subtropical regions, predominantly on tidal flats, deltas, estuaries, bays, but also on oceanic atolls. These landforms present varied hydrodynamic and geomorphological settings for mangroves to establish and could influence the extent of propagule transport and subsequent regeneration. In this study, we examined whether these landform characteristics influence the genetic diversity and structure of <i>Avicennia marina</i>, one of the most abundant and widespread mangrove species. To do so, we considered 14 populations located in estuarine and coastal bay environments spread across the Western Indian Ocean region. A transect approach was considered to estimate kinship-based fine-scale spatial genetic structure using fifteen polymorphic microsatellite markers in 475 adult <i>A. marina</i> trees from 14 different populations. No overall significant difference was found in the levels of allele or gene diversities between coastal bay and estuarine populations. However, some South African estuarine populations showed strong inbreeding levels that are most likely due to the recurrent closing of the river mouth, lowering the chance of external propagule input. Elevated kinship values and significant fine-scale spatial genetic structure up to 30 m, 60 m or 90 m distance were detected in all coastal bays, indicating a topographic setting suitable for propagule retention and establishment within a neighborhood. Slopes of a linear regression over restricted distance within 150 m were significantly declining in each sheltered transect. Contrastingly, such a spatial structure could not be detected for transects along the rivers of the estuarine systems considered, suggesting that recruitment here is governed by unrelated carried-away mixed-origin propagules. In general, we have shown that <i>A. marina</i> populations can locally experience different modes of propagule movement, explained from their position in estuaries.</a> Thus, the resilience and natural regeneration of mangroves is achieved by different mechanisms for settings with different hydrodynamic conditions, which can be important information for their management and protection within the variety of coastal environments.</p>
Figure 4 in In vitro antifungal and antibacterial potentials of organic extracts of Avicennia marina collected from Rabigh Lagoon, Red Sea Coasts in Saudi Arabia
Figure 4. Comparison of the Diameters of inhibition in mm of A. marina extracts. All tests were performed in triplicates (n = 3) and the error bars represent the SD. * p <0.05, ** p <0.01, *** p <0.001 with respect to the control.
Microsatellite data of Avicennia marina from Gazi Bay, Kenya
<p>Mangrove ecosystems along the East African coast are often characterized by a disjunct zonation of seaward and landward <i>Avicennia marina</i>. This disjunct zonation may be maintained through different positions in the tidal frame, yielding different dispersal settings. The spatial configuration of the landscape and coastal processes such as tides and waves are expected to largely influence the extent of propagule transport and subsequent regeneration. We hypothesized that landward sites would keep a stronger genetic structure over short distance in comparison to enhanced gene flow among regularly flooded seaward fringes. We tested this hypothesis from densely vegetated <i>A. marina</i> transects of a well-documented mangrove system (Gazi Bay, Kenya) and estimated local gene flow and kinship-based fine scale genetic structure. Ten polymorphic microsatellite markers in 457 <i>A. marina</i> trees revealed no overall significant difference in levels of allele or gene diversities between sites that differ in hydrological proximity. Genetic structure and connectivity of <i>A. marina</i> populations however indicated an overall effect of geographic distance and revealed a pronounced distinction between channels and topographic setting. Migration models allowed to infer gene flow directionality among channels, and indicated a bidirectional steppingstone between seaward and nearest located landward stands. Admixed gene pools without any fine-scale structure were found within the wider and more exposed Kidogoweni river estuary, suggesting open systems. Elevated kinship values and structure over 5 to 20 m distance were only detected in two distant landward and seaward transects near the mouth of the Mkurumuji River, indicating local retention and establishment. Overall, our findings show that patterns of <i>A. marina</i> connectivity are explained by hydrological proximity, channel network structure, and hydrokinetic energy, rather<i> </i>than just their positioning as disjunct landward or seaward zones.</p>
Microsatellite data of 14 Avicennia marina populations from Mozambique Channel area
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Microsatellite data of Avicennia marina from Gazi Bay, Kenya
Open the record for dataset details and reuse information.
Identification and Analysis of Red Sea Mangrove (Avicennia marina) microRNAs by High-Throughput Sequencing and their Association with Stress Responses
GEO Series GSE43669. Avicennia marina. 1 samples. Type: Non-coding RNA profiling by high throughput sequencing.
Fig. 6 in A metallothionein type 2 from Avicennia marina binds to iron and mediates hydrogen peroxide balance by activation of enzyme catalase
Fig. 6. Growth curves and CAT activities for strains of control and R-AmMT2. (A) Growth curves of strains control and R-AmMT2 in the medium containing H2O2. (B) The CAT activities of control and R-AmMT2 in response to H2O2.
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Allen Brain Atlas
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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.
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