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117 results for “desert plant”
Supplementary material 1 from: Tanaka S, Kotaki T, Nishide Y, Ben-Hamouda A, Abdellaoui K, Ebbe MAB, Ely SO (2019) Effects of water extracts of feces from three locust species and various plants on oviposition and embryonic development in the desert locust Schistocerca gregaria. Journal of Orthoptera Research 28(2): 195-204. https://doi.org/10.3897/jor.28.34665
: Explanation note: Fig. S1. Effects of water extracts of desert locust frass after feeding on various plants on the numbers of egg pods laid when adult female desert locusts were presented with extracts mixed with sand.
Supplementary material 3 from: Tanaka S, Kotaki T, Nishide Y, Ben-Hamouda A, Abdellaoui K, Ebbe MAB, Ely SO (2019) Effects of water extracts of feces from three locust species and various plants on oviposition and embryonic development in the desert locust Schistocerca gregaria. Journal of Orthoptera Research 28(2): 195-204. https://doi.org/10.3897/jor.28.34665
: Explanation note: Fig. S3. Effects of water extracts of rescue grass-fed desert locust frass on antennal lengths of embryos (A, mean ± SD; n = 6–10).
FIGURE 2 in Bisifusarium tonghuanum (Nectriaceae), a novel species of Fusarium-like fungi from two desert oasis plants
FIGURE 2. Colonical and microscopic morphology of Bisifusarium tonghuanum (CGMCC 3.17369). A: Colony on PDA; B: Colony reverse on PDA; C: Sporodochia on pieces of carnation leaves placed on the surface of SNA; D, E: Sporodochium, optical section; F: Chlamydospores; G: Macroconidia and lateral phialidic pegs; H: Microconidia and lateral monophialide; I, J: Macroconidia and sporodochium, SEM. Bars: D, E, F, G, H = 10 μm; I, J = 3 μm.
FIGURE 1 in Bisifusarium tonghuanum (Nectriaceae), a novel species of Fusarium-like fungi from two desert oasis plants
FIGURE 1. Combined phylogeny of the β-tub, tef1 and ITS / LSU rDNA gene regions of species from Bisifusarium. Branches with values more than 1 pp and 95 % bs are thickened. The phylogram is rooted with Fusarium sambucinum (CBS 146.95).
Effects of Hedysarum leguminous plants on soil bacterial microbiome in the Mu Us desert, northwest China
<p><span>By assessing the influence of rhizocompartment types (i.e. root, rhizosphere soil, root zone soil, and inter-shrub bulk soil) on the diversity of soil microbial communities under desert leguminous plant shrubs, and the influence of, and variations in, soil physicochemical factors in interactions among leguminous plants, soil, and microbes. Both 16S rRNA high-throughput genome sequencing and conventional soil physicochemical index determination were used to characterise the bacterial diversity and soil physicochemical properties in the rhizocompartments of two <i>Hedysarum</i> spp. (<i>Hedysarum mongolicum</i> and <i>Hedysarum scoparium</i>) in the Mu Us Desert. We found that all the nutrient indices (except TP and AP), values in rhizosphere soil were uniformly higher than those in root zone soil and inter-shrub bulk soil (<i>P</i> < 0.05). The bacterial community diversity in the root, under-shrub (rhizosphere, root zone) and inter-shrub bulk soil also have significant differences (<i>P</i> < 0.05). Desert leguminous plants had significant effects on hierarchical filtration and enrichment of specific soil bacterial microbiomes (<i>P</i> < 0.05). Root endophyte and rhizosphere soil microbiomes were mainly influenced by soil nutrients, while the bacterial communities in root zones soil and inter-shrub bulk soil were mainly influenced by soil pH and NH<sub>4</sub><sup>+</sup>-N. The rhizocompartment types of desert leguminous plants have a significant influence on the diversity of soil microbial communities. According to our findings, nitrogen-fixing rhizobia can co-exist with non-symbiotic endophytes in the roots of desert leguminous plants, and plants have a hierarchical filtering and enriching effect on beneficial microbes in soil via rhizocompartments. Soil physicochemical factors have a significant influence on the structure and composition of microbial communities in various rhizocompartments, and this influence is derived from the interactions among leguminous plants, soil, and microbes.</span></p>
Fig. 5. A in Phaeosphspirone (1/1 ), a pair of unique polyketide enantiomers with an unusual 6/5/5/6 tetracyclic ring from the desert plant endophytic fungus Phaeosphaeriaceae sp.
Fig. 5. A: Comparison of the fusarubin gene cluster fsr and phaeosphspirone gene cluster. B: Phylogenetic analysis of the phaeosphspirone gene cluster in Phaeosphaeriaceae sp.
Fig. 3 in Bioactive metabolites from the desert plant-associated endophytic fungus Chaetomium globosum (Chaetomiaceae)
Fig. 3. Comparison of the 13C NMR chemical shift values of the left part of structure 1 with those of spiciferone A (3) in the same solvent (DMSO d).
Data from: Phosphorus amendment mitigates nitrogen addition-induced phosphorus limitation in two plant species in a desert steppe, China
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Data from: Landscape genetic approaches to guide native plant restoration in the Mojave Desert
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Data from: Extreme drought stress shifts net facilitation to neutral interactions between shrubs and sub-canopy plants in an arid desert
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Effects of Hedysarum leguminous plants on soil bacterial microbiome in the Mu Us desert, northwest China
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Data from: Spatial variation in leaf nutrient traits of dominant desert riparian plant species in an arid inland river basin of China
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Data from: The utility of environmental DNA from sediment and water samples for recovery of observed plant and animal species from four Mojave Desert springs
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Data for: Low predictability of energy balance traits and leaf temperature metrics in desert, montane, and alpine plant communities
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Data for: Human food use increases plant geographic ranges in the Sonoran Desert
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Plant survey of current vegetation, central Arizona Phoenix: desert vegetation site locations.
An extensive survey was conducted to assess the species diversity of natural desert vegetation around the CAP-LTER study area. Remnant patch habitats (mostly parks and preserves) occurring within the urban matrix / fringe were emphasized. Three outlying areas (White Tank mountains west of town, Union Hills north of town, and Usery Mountain Park east of town) were surveyed for comparison. The original intent was to provide data on the woody and spring / summer herbaceous species in each area, but drought conditions allowed the spring herbs to be surveyed twice (1998, 2001) and summer herbs surveyed only once (1999). Thus, all locations have woody data but only a subset has herbaceous data. Surveys consisted of transects (elaborated below) summarized by the patch or outlying area name followed by a number (e.g. Unhill-11, Squaw-40, Hayden-8). Herb datasets are signified by a ‘P’ for spring and a ‘U’ for summer following the transect number (e.g. PaPk-1P, PaPk-1U).
How surface rock cover affects water and nutrient availability of Sonoran Desert annual plants -- Honors Thesis
Water and nutrient availability are the primary and secondary drivers of net primary productivity (NPP) in arid ecosystems. Although precipitation regulates water inputs, soil properties influence water availability for plant growth. Aridland soils are often covered with surface rocks, which can increase or decrease water availability by modifying evaporation, infiltration, light levels, and temperature. Due to the complexity of these direct and indirect mechanisms, the relationship between rock cover and NPP is not well understood. In this research we explore the relationship between rock cover, soil nutrient availability, and aboveground growth of desert annual plants over four years across a long-term nutrient enrichment experiment in the Sonoran Desert. We surveyed surface rock cover at fifteen sites in central Arizona that have been fertilized with nitrogen (N) and phosphorus (P), alone and in combination, for seven years. Using ANCOVA, we then explored the relative importance of rock cover, precipitation, and nutrient treatment on peak aboveground biomass of spring herbaceous annual plants that were collected in 2008, 2009, 2010, and 2013. We expected surface rocks to strengthen the positive relationship between precipitation, nutrient additions, and annual plant growth. Precipitation, nutrient additions, and surface rock cover together significantly influence growth of Sonoran Desert annual plants. As expected, nutrients and precipitation were the strongest drivers of annual plant biomass. Plant growth was positively related to N additions across all four years (ANCOVA, p <0.01); P in 2008 and 2010 years (p = 0.01 and 0.005, respectively);and precipitation in three of the four years (p < 0.05). Precipitation was the primary driver of plant biomass in the two driest years, 2009 and 2013 (partial eta2 = 0.51 and 0.52, respectively). Gravel (2-64 mm diameter) was only rock size class that was significantly related to annual plant biomass. Contrary to our expecta
Data from: Increased soil temperature and decreased precipitation during early plant life stages constrain grass seedling recruitment in cold desert restoration
1. Seed-based restoration is one of the most difficult challenges for dryland restoration. Identifying environmental conditions that drive variation in seed and seedling mortality across similar restoration efforts could increase understanding of when and where restoration outcomes are likely to be favorable and identify new tools and strategies to improve outcomes. 2. We asked how variation in a suite of environmental predictors influenced germination, emergence, seedling establishment, and juvenile survival of four commonly sown perennial grass species across 33 seeding experiments distributed over a ~160,000-km2 area of the Great Basin, a cold desert system in the western United States. 3. Across experiments, we observed wide variation in the rates of four demographic transitions and wide variation in environmental conditions experienced by plants at each stage. For all species, higher precipitation during the first 30 days following seeding was associated with an increase in germination. Conversely, higher soil temperature over this same time period was associated with a significant decrease in germination and emergence and soil temperature was associated with a substantial portion of the variation in germination and emergence probabilities observed across our seeding experiments. 4. Within the range of precipitation variation observed, we were unable to detect a significant relationship between seedling establishment the first growing season and cumulative precipitation the first year, precipitation during the first spring growing season, or annual climatic water deficit (CWD) the first year. Higher CWD the second growing season reduced seedling survival over that time period. 5. Synthesis and application. Our results show higher soil temperature negatively impacts grass seedling recruitment. Our results can be combined with seasonal and subseasonal temperature forecasts to improve restoration decision-making. These results also suggest climate warming will make restoration even more difficult, with our model estimates suggesting the 2°C increase in temperature expected in the Great Basin over the coming decades will decease germination and emergence by about 30%. Lastly, while our field-based approach provided insight into short-term drivers of mortality, it did not provide insight into drivers of longer-term survival, suggesting a need to develop process-based approaches for predicting long-term restoration outcomes.29-Aug-2019
Figure 7. A in Metagenomic study of the communities of bacterial endophytes in the desert plant Senna Italica and their role in abiotic stress resistance in the plant
Figure 7. A. The Genus level in Bacteria (bar chart), the 12genera of the five bacteria were detected at the level of the phylum. Based on the V3-V4 region of the 16S rRNA region. The relative most abundance in the taxonomic composition distribution in samples of Genus -level (pie chart) as a percentage of the total bacteria isolated from roots and leaves endophyte region. Based on the full-length 16S rRNA sequences. (B) and (C) The most abundant genera found in the phylum of Actinobacteria. (D) The most abundant genus found in the phylum of Cyanobacteria. Roots samples: Roots.1, Roots.2, and Roots.3. Leaves samples: Leaves.1, Leaves.2, and Leaves.3 are associated with Senna italica.
Figure 2 in Metagenomic study of the communities of bacterial endophytes in the desert plant Senna Italica and their role in abiotic stress resistance in the plant
Figure 2. Different curve based on observed Shannon value and Inversed Simpson value. Roots samples: Roots.1, Roots.2, and Roots.3. Leaves samples: Leaves.1, Leaves.2, and Leaves.3 are associated with Senna italica.
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Allen Brain Atlas
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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
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