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170 results for “alpine plant”
Alpine grassland plant dataset
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FIGURE 1. Cardamine panatohea. A. Mature plant with prostrate inflorescences. B. Plant with rosette leaves. C. Rosette leaves. D in Cardamine panatohea (Brassicaceae), a new, threatened, alpine species from New Zealand
FIGURE 1. Cardamine panatohea. A. Mature plant with prostrate inflorescences. B. Plant with rosette leaves. C. Rosette leaves. D. Hairs on leaf adaxial surface. E. Flowers top view. F. Flowers side view. G. Inflorescence with axillary rosettes. H. Inflorescence with siliques. Scale bars: C, G = 10 mm; D = 5 mm.
Data from: Microenvironment and functional-trait context dependence predict alpine plant community dynamics
Predicting the structure and dynamics of communities is difficult. Approaches linking functional traits to niche boundaries, species co‐occurrence and demography are promising, but have so far had limited success. We hypothesized that predictability in community ecology could be improved by incorporating more accurate measures of fine‐scale environmental heterogeneity and the context‐dependent function of traits. We tested these hypotheses using long term whole‐community demography data from an alpine plant community in Colorado. Species distributions along microenvironmental gradients covaried with traits important for below‐ground processes. Positive associations between species distributions across life stages could not be explained by abiotic microenvironment alone, consistent with facilitative processes. Rates of growth, survival, fecundity and recruitment were predicted by the direct and interactive effects of trait, microenvironment, macroenvironment and neighbourhood axes. Synthesis. Context‐dependent interactions between multiple traits and microenvironmental axes are needed to predict fine‐scale community structure and dynamics.
Data from: History and evolution of alpine plants endemic to the Qinghai-Tibetan Plateau: Aconitum gymnandrum (Ranunculaceae)
How Quaternary climatic oscillations affected range distributions and intraspecific divergence of alpine plants on the Qinghai-Tibetan Plateau (QTP) remains largely unknown. Here we report a survey of chloroplast (cp) and nuclear ribosomal (ITS) DNA variation aimed at exploring the phylogeographic history of the QTP alpine endemic Aconitum gymnandrum. We sequenced three cpDNA fragments (rpl20-rps12 intergenic spacer, the trnV intron and psbA-trnH spacer) and also the nuclear (ITS) region in 245 individuals from 23 populations sampled throughout the species' range. Two distinct lineages with east and west geographical distributions respectively were identified from a phylogenetic analysis of ITS sequence variation and the divergence were estimated to be around 1.45 Ma. Nine chlorotypes that clustered into two major clades were broadly congruent in geographical distribution with the two ITS lineages, which was also supported by an analysis of molecular variance (AMOVA). Analysis of the spatial distribution of chlorotypes and coalescent simulation of chlorotype genealogies supported both an early Pleistocene origin of the two main cpDNA clades and the four-refugia hypothesis during the LGM. Two previous phylogeographic studies of QTP alpine plants indicated that such plants retreated to refugia at the eastern/south-eastern plateau edge during the LGM and/or previous glacial maxima. However, the results for A. gymnandrum suggest that at least some of these cold tolerant species may have also survived centrally on the QTP platform throughout the Quaternary.
Data from: Tales of the unexpected: Phylogeography of the arctic-alpine model plant Saxifraga oppositifolia (Saxifragaceae) revisited
Arctic-alpine biota occupy enormous areas in the Arctic and the northern hemisphere mountain ranges, and have undergone major range shifts during their comparatively short history. The origins of individual arctic-alpine species remain largely unknown. In the case of the Purple saxifrage, Saxifraga oppositifolia, an important model for arctic-alpine plants, phylogeographic studies have remained inconclusive about early stages of the species' spatiotemporal diversification, but have provided evidence for long-range colonization out of a presumed Beringian origin to cover today's circumpolar range. . We re-evaluated the species' large-scale range dynamics based on a geographically extended sampling including crucial areas such as Central Asia and the (south-)eastern European mountain ranges and employing up-to-date phylogeographic analyses of a plastid sequence and a more restricted AFLP data set. In accordance with previous studies, we detected two major plastid DNA lineages also reflected in AFLP divergence, suggesting a long and independent vicariant history. Although we were unable to determine the species' area of origin, our results point to the Alps and probably Central Asia, respectively, as the likely ancestral areas of the two main clades. AFLP data suggested that contact areas between the two clades in Eastern Europe, Northern Siberia and Greenland were secondary. In marked contrast to high levels of diversity revealed in previous studies, populations from the major arctic refugium Beringia did not exhibit any plastid sequence polymorphism. Our study shows that adequate sampling of the southern, refugial populations is crucial for understanding the range dynamics of arctic-alpine species.
Data from: Exploring actinobacteria associated with rhizosphere and endosphere of the native Alpine medicinal plant Leontopodium nivale Subspecies alpinum
<p>The rhizosphere of plants is enriched in nutrients facilitating growth of microorganisms, some of which are recruited as endophytes. Endophytes, especially Actinobacteria, are known to produce a plethora of bioactive compounds. We hypothesized that Leontopodium nivale subsp. alpinum (Edelweiss), a rare alpine medicinal plant, may serve as yet untapped source for uncommon Actinobacteria associated with this plant. Rhizosphere soil of native Alpine plants was used, after physical and chemical pretreatments, for isolating Actinobacteria. Isolates were selected based on morphology and identified by 16S rRNA gene-based barcoding. Resulting 77 Actinobacteria isolates represented the genera Actinokineospora, Kitasatospora, Asanoa, Microbacterium, Micromonospora, Micrococcus, Mycobacterium, Nocardia, and Streptomyces. In parallel, Edelweiss plants from the same location were surface-sterilized, separated into leaves, roots, rhizomes, and inflorescence and pooled within tissues before genomic DNA extraction. Metagenomic 16S rRNA gene amplicons confirmed large numbers of actinobacterial operational taxonomic units (OTUs) descending in diversity from roots to rhizomes, leaves and inflorescences. These metagenomic data, when queried with isolate sequences, revealed an overlap between the two datasets, suggesting recruitment of soil bacteria by the plant. Moreover, this study uncovered a profound diversity of uncultured Actinobacteria from Rubrobacteridae, Thermoleophilales, Acidimicrobiales and unclassified Actinobacteria specifically in belowground tissues, which may be exploited by a targeted isolation approach in the future.</p>
Effects of temperature treatments on cytosine-methylation profiles of diploid and tetraploid plants of the alpine species Ranunculus kuepferi (Ranunculaceae)
<p>The current dataset refers to the DNA methylation patterns of diploid and tetraploid individuals of <em>Ranunculus kuepferi</em>, obtained with the method of methylation-sensitive AFLPs (MS-AFLPs).</p> <p>The individuals of Ranunculus kuepferi were collected from several locations throughout the distribution of the species in the Alps, transferred to the old Botanical Garden of Göttingen and placed into two climate chambers MC1000E (Snijders Scientific, Tilburg, Netherlands), where the temperature treatment experiments took place. In the first chamber a cold treatment was applied (+7°C day/+2°C night; frost treatment: -1°C cold shocks for three nights per week), while in the second chamber a warm treatment was applied (+15° day/+10°C night).</p> <p>The plants were shifted from one treatment to the other one after the end of the 2016 flowering period and leaf material was collected during the flowering period of 2016 and 2017. This material went through the respective lab procedures in order to obtain the genome-wide patterns of epigenetic variation via MS-AFLPs.</p> <p>The analysis of the electropherograms was conducted with Peakscanner v.2 and fragment scoring was performed with RawGeno 2.0-1 R package. These fragment scoring binary matrices are presented here.</p>
Plant community assembly of alpine meadow at different altitudes in Northeast Qinghai-Tibet Plateau
<p>Plant community assembly of alpine meadow at different altitudes in Northeast Qinghai-Tibet Plateau related raw data include 3 files: All Species Name, Calculated trait NFI, Pedigree chart. </p>
Climate warming alters the relative importance of plant root and microbial community in regulating the accumulation of soil microbial necromass carbon in a Tibetan alpine meadow
<p><span>Climate warming is predicted to considerably affect variations in soil organic carbon (SOC), especially in alpine ecosystems. Microbial necromass carbon (MNC) is an important contributor to stable soil organic carbon pools. However, accumulation and persistence of soil MNC across a gradient of warming are still poorly understood. An eight-year field experiment with four levels of warming was conducted in a Tibetan meadow</span><span>.</span> <span>We found that low-level (+0</span><span>-</span><span>1.5 ℃) warming mostly enhanced bacterial necromass carbon (BNC), fungal necromass carbon (FNC), and total MNC compared with control treatment across soil layers, while no significant effect was caused between high-level (+1.5</span><span>-</span><span>2.5 ℃) treatments and control treatments. The contributions of both MNC and BNC to soil organic carbon were not significantly affected by warming treatments across depths. Structural equation modeling analysis demonstrated that the effect of plant root traits on MNC persistence strengthened with warming intensity, while the influence of microbial community characteristics waned along with strengthened warming. Overall, our study provides novel evidence that the major determinants of MNC production and stabilization may vary with warming magnitude in alpine meadows. This finding is critical for updating our knowledge of soil carbon storage in response to climate warming.</span></p>
Contrasting altitudinal variation of alpine plant communities along the Swedish mountains
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The impact of a native dominant plant, Euphorbia jolkinii, on plant-flower visitor networks and pollen deposition on stigmas of co-flowering species in sub-alpine meadows of Shangri-La, SW China
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Data from: History and evolution of alpine plants endemic to the Qinghai-Tibetan Plateau: Aconitum gymnandrum (Ranunculaceae)
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Data from: Concordant genetic breaks, identified by combining clustering and tessellation methods, in two co-distributed alpine plant species
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Data from: Draining the pool? Carbon storage and fluxes in three alpine plant communities
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Data from: Functional dissimilarity, not phylogenetic relatedness, determines interspecific interactions among plants in the Tibetan alpine meadows
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Data from: Late Pleistocene origin of the entire circumarctic range of the arctic-alpine plant Kalmia procumbens
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Data from: Growth-competition-herbivore resistance trade-offs and the responses of alpine plant communities to climate change
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Data from: Differences in the fungal communities nursed by two genetic groups of the alpine cushion plant, Silene acaulis
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Data from: Microenvironment and functional-trait context dependence predict alpine plant community dynamics
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Effects of temperature treatments on cytosine-methylation profiles of diploid and tetraploid plants of the alpine species Ranunculus kuepferi (Ranunculaceae)
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Allen Brain Atlas
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International Brain Laboratory public data
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OpenNeuro
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