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233 results for “plant resistance”
Data and results for manuscript "Small scale characterization of vine plant root water uptake via 3D electrical resistivity tomography and Mise-à-la-Masse method"
<p>This package contains measured raw ERT and MALM data used to generate the plots in the manuscript.</p> <p> </p>
Dataset for research paper "Heracleum sosnowskyi plants frost-resistance assessment in laboratory and field experiments"
<p>Dataset for research paper "Heracleum sosnowskyi plants frost-resistance in laboratory and field experiments". </p> <p>The <em>Heracleum sosnowsky</em> plants has low freezing tolerance and die in temperature range minus 6–12 °С. Snow cover provides stable soil temperature (not lower than minus 3 °С) and is the only factor that ensures the survival of <em>H. sosnowsky</em> plants in the regions with cold winter. The <em>H. sosnowsky</em> frost tolerance is higher in autumn (up to minus 12 °С) and became lower at spring (minus 5–7 °С). These results can be explained by absence of deep dormancy in <em>H. sosnowskyi</em> meristem tissues and gradual change of carbohydrate content in them during the cold period. The seeds have high freezing tolerance after its formation but lost it after stratification. The field experiments were carried out by participants of citizen science project “Moroz”. It was shown that <em>H. sosnowskyi</em> plant eradication probability with the help of snow removal completely depends on weather conditions. This method can be used only on the territories where the use of herbicides is prohibited and only in the regions with minimal temperature in January – Febrary not higher than minus 25 °С. The dataset with all measurements made during the experiments is available on the site of “Moroz” project (<a href="http://proborshevik.ru/%20">http://proborshevik.ru</a>).</p>
Fig. 1 in Impact of host plant resistance on emergence, body parameters, and supercooling point of Cylas formicarius elegantulus (Coleoptera: Brentidae)
Fig. 1. Daily (Mean ± SE) sweetpotato weevil emergence 30 d afer oviposition from individual storage roots of sweetpotato cultivars 'Beauregard,' 'Evangeline,' and 'Murasaki.'
Fig. 2 in A rapid screening method for resistance to Anthonomus eugenii (Coleoptera: Curculionidae) in Capsicum (Solanaceae) spp. plants
Fig. 2. Visual scale of damaged leaf area by Anthonomus eugenii on pepper leaves: 1 = leaf with 0% of damaged area, 3 = leaf with approximate 25% of damaged area, 5 = leaf with approximate 50% of damaged area, 7 = leaf with approximate 75% of damaged area, and 9 = leaf with approximate 100% of damaged area.
Fig. 1 in A rapid screening method for resistance to Anthonomus eugenii (Coleoptera: Curculionidae) in Capsicum (Solanaceae) spp. plants
Fig. 1. Plastic micro-cages used for resistance experiments to Anthonomus eugenii on pepper leaves: (A) empty micro-cage, (B) micro-cage used as negative control where we placed only pepper leaves without insects, (C) micro-cage with adults of A. eugenii and pepper leaves, and (D) close up of 1 micro-cage with adults of A. eugenii and pepper leaves for resistance experiments.
Fig. 4 in A rapid screening method for resistance to Anthonomus eugenii (Coleoptera: Curculionidae) in Capsicum (Solanaceae) spp. plants
Fig. 4. Damage caused by Anthonomus eugenii: (A) susceptible control leaf of the Fascinato commercial cultivar with severe damage, and (B) Capsicum annuum plant considered resistant of the UTC17 wild pepper population collected from Tabasco, Mexico, infested with A. eugenii. Picture was taken 7 d afer infestation.
Fig. 3 in A rapid screening method for resistance to Anthonomus eugenii (Coleoptera: Curculionidae) in Capsicum (Solanaceae) spp. plants
Fig. 3. Mortality (%) of Anthonomus eugenii adults per micro-cage during 21 consecutive d afer infestation (DAI) in pepper leaves from wild and landrace populations and commercial cultivars. Bars are average percentage mortality. Comparisons made with Mann-Whitney test (P ≤ 0.05). Different letters in the columns indicate significant differences. Error bars indicate the standard error.
Fig. 1 in Resistance in rice to Tibraca limbativentris (Hemiptera: Pentatomidae) influenced by plant silicon content
Fig. 1. Percentage of damaged stems (PDS) in 3 rice cultivars treated with different sources of silicon. Urutaí, Goiás, Brazil. 2016. Means followed by the same capital letter (inducers) and lower case letters (cultivars) in the columns do not differ statistically from each other according to the Tukey test at 0.05% probability.
Linked collectors and determiners for: V. N. Karazin Kharkiv National University herbarium, Department of Mycology and Plant Resistance.
Natural history specimen data linked to collectors and determiners held within, "V. N. Karazin Kharkiv National University herbarium, Department of Mycology and Plant Resistance". Claims or attributions were made on Bionomia by volunteer Scribes, <a href="https://bionomia.net/dataset/f0ecd5eb-bc62-40fe-ab53-294cbb34a290">https://bionomia.net/dataset/f0ecd5eb-bc62-40fe-ab53-294cbb34a290</a> using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, <a href="https://gbif.org/dataset/f0ecd5eb-bc62-40fe-ab53-294cbb34a290">https://gbif.org/dataset/f0ecd5eb-bc62-40fe-ab53-294cbb34a290</a>. Formatted as a Frictionless Data package.
Insecticide resistance triggers a reduction of virulence to host-plant defenses in the brown planthopper
<p>This dataset contains R scripts to analyze the virulence of resistance rice cultivars and to draw figures. Data contains the LD<sub>50</sub> values of imidacloprid, virulence test and figure data. This study was supported by grants-in-aid from Japan's National Agriculture and Food Research Organization (NARO) project 315 and the NARO Innovation Project 2017 for the NARO.</p>
Figure 2 in Silicon derivatives induced host plant resistance against Tetranychus urticae (Acari: Tetranychidae) in eggplants farms
Figure 2. (A) Silicon leaf, total protein and phenol contents, (B) Activity of POD, CAT, and PPO of S. melongena- treated plants. Means followed by the same letter are not significantly different using Tukey's HSD Test at P <0.05. T1 = Control, T2 = OSAB 2 mL L−1, T3= OSAB 4 mL L−1, T4= Silica K 2 mL L−1, and T5 = Silica K 4 mL L−1.
Figure 1 in Silicon derivatives induced host plant resistance against Tetranychus urticae (Acari: Tetranychidae) in eggplants farms
Figure 1. Mean number ± SE of the different stages of T. urticae on S. melongena leaves 10, 30 and 50 days after spraying (DAS). Means followed by the same letter are not significantly different using Tukey's HSD at P <0.05. T1 = Control, T2 = OSAB 2 mL L−1, T3 = OSAB 4 mL L−1, T4 = Silica K 2 mL L−1, and T5 = Silica K 4 mL L−1.
Root mutualistic fungi tailor the induction of direct and indirect antiherbivore defense strategies to enhance plant resistance
<p>GCMS raw data in netCDF format for the manuscript "Root mutualistic fungi tailor the induction of direct and indirect antiherbivore defense strategies to enhance plant resistance" </p> <p>Mutualistic microbes can trigger plant defenses against herbivores. Little is known about how microbes orchestrate multiple induced defense strategies that may trade-off against each other. We investigated how two root mutualistic fungi trigger simultaneously direct and indirect antiherbivore-defenses, and the regulatory mechanisms involved</p>
Climate and the biotic community structure plant resistance across biogeographic groups of yellow monkeyflower
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Phage selection drives resistance-virulence trade-offs in Ralstonia solanacearum plant pathogenic bacterium irrespective of the growth temperature
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Can disease resistance evolve independently at different ages? Genetic variation in age-dependent resistance to disease in three wild plant species
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Data for: Microbe-induced plant resistance alters aphid inter-genotypic competition leading to rapid evolution with consequences for plant growth and aphid abundance
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Interspecific variation and elevated CO2 influence the relationship between plant chemical resistance and regrowth tolerance
<p>To understand how comprehensive plant defense phenotypes will respond to global change, we investigated the legacy effects of elevated CO<sub>2</sub> on the relationships between chemical resistance (constitutive and induced via mechanical damage) and regrowth tolerance in four milkweed species (<i>Asclepias</i>). We quantified potential resistance and tolerance tradeoffs at the physiological level following simulated clipping/mowing, which are relevant to milkweed ecology and conservation. We examined the legacy effects of elevated CO<sub>2 </sub>on four hypothesized tradeoffs between: 1) plant growth rate and constitutive chemical resistance (foliar cardenolide concentrations), 2) plant growth rate and mechanically induced chemical resistance, 3) constitutive resistance and regrowth tolerance, and 4) regrowth tolerance and mechanically induced resistance. We observed support for one tradeoff between plant regrowth tolerance and mechanically induced resistance traits that was, surprisingly, independent of CO<sub>2</sub> exposure. Across milkweed species, mechanically induced resistance increased by 28% in those plants previously exposed to elevated CO<sub>2. </sub> In contrast, constitutive resistance, and the diversity of mechanically induced chemical resistance traits declined in response to elevated CO<sub>2 </sub>in two out of four milkweed species. Finally, previous exposure to elevated CO<sub>2 </sub>uncoupled the positive relationship between plant growth rate and regrowth tolerance following damage. Our data highlight the complex and dynamic nature of plant defense phenotypes under environmental change and question the generality of physiologically-based defense tradeoffs.</p>
Species identity and diversity effects on invasion resistance of tropical freshwater plant communities
<p>Biotic resistance mediated by native plant diversity has long been hypothesized to reduce the success of invading plant species in terrestrial systems in temperate regions. However, still little is known about the mechanisms driving invasion patterns in other biomes or latitudes. We help to fill this gap by investigating how native plant community presence and diversity, and the presence of native phylogenetically closely related species to an invader, would affect invader <i>Hydrilla verticillata</i> establishment success in tropical freshwater submerged plant communities. The presence of a native community suppressed the growth of <i>H. verticillata</i>, but did not prevent its colonisation. Invader growth was negatively affected by native plant productivity, but independent of native species richness and phylogenetic relatedness to the invader. Native plant production was not related to native species richness in our study. We show that resistance in these tropical aquatic submerged plant communities is mainly driven by the presence and biomass of a native community independent of native species diversity. Our study illustrates that resistance provided by these tropical freshwater submerged plant communities to invasive species contrasts to resistance described for other ecosystems. This emphasizes the need to include understudied systems when predicting patterns of species invasiveness and ecosystem invasibility across biomes. </p>
Short-term resistance that persists: Rapidly induced silicon anti-herbivore defence affects carbon-based plant defences
<p><b>1. </b>Silicon (Si) is known to alleviate diverse biotic and abiotic stresses including insect herbivory.<b> </b>Si accumulation in plants, notably the Poaceae, can be induced through stimulation of the jasmonic acid (JA) pathway (associated with chewing herbivores). Nevertheless, the temporal dynamics of Si accumulation as a defence response and its consequential effects on carbon-based defences (e.g. phenolics), particularly in the short-term, remain unclear.</p> <p><b>2. </b>The model grass <i>Brachypodium distachyon</i> was grown in a hydroponic solution where half the plants were supplemented with 2 mM potassium silicate and half had no Si supplied. Plants were treated with methyl jasmonate (MeJA) as a form of standardised simulated herbivory. We measured Si accumulation, the phytohormones JA and salicylic acid (SA), and carbon-based defences over 24 hours to determine the temporal dynamics of Si accumulation and the interplay between Si, simulated herbivory and plant defence machinery.</p> <p><b>3. </b>MeJA-induced Si accumulation occurred as early as 6 hours after treatment via increased JA concentrations. Si supplementation decreased SA concentrations, which could have implications on additional downstream defences. We show a trade-off between Si and phenolics in untreated plants, but this relationship was weakened upon MeJA treatment. Further, this trade-off did not apply to phenolic precursor compounds such as phenylalanine.</p> <p><span><b>4. </b>We provide evidence for rapidly induced Si accumulation associated with herbivory, and that increased Si accumulation impacts on phytohormones and carbon-based defences over a 24-hour period. Additionally, herbivory modifies the relationship between Si- and carbon-based defences. Thus, in addition to its well-documented role as a long-term defence against herbivores, we demonstrate that, over short-term temporal scales, Si accumulation responds to herbivore signals and impacts on plant defence machinery. </span></p>
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Allen Brain Atlas
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Annotated Behaviour and Observability Dataset (ABODe)
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DANDI Archive for NWB datasets
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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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