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40 results for “Root Architecture”
Mangrove biomass and root architecture in recycled glass sand, SE Louisiana 2023-2024
As coastal regions experience accelerating land loss, artificial substrates may be useful in restoration efforts to replenish sediment and facilitate plant colonization. Recycled glass sand is a potential artificial substrate for marsh building due to its sustainability, availability, and similarity to natural substrates. However, differences in texture and availability of microbiota necessitate investigating how it affects plant growth. We tested the effect of three substrates (conventionally used dredged river sand, recycled glass sand, and a 50:50 mix) and inoculation with natural soil microbes on the biomass and root architecture of black mangrove (Avicennia germinans) in a 5.5 month greenhouse experiment.
Raw data: Diversity in root architecture of durum wheat at stem elongation under drought stress
<p>Raw data on above and below ground traits from a greenhouse drought stress experiment with six durum wheat varieties performed at Tuscia University, Viterbo, Italy. Measurements were performed at stem elongation stage; recorded traits: plant shoot length, dry weight, number of leaves and tillers; total root length, root surface area, mean diameter, volume, number of tips, forks, crossings, root dry weight and root angle. Root measurments were performed on the whole root system and the topsoil area (upper 5 cm). </p>
Phenotypic diversity of root architecture and genotypic variation in durum wheat under salt stress
<p>Supplementary data consists of Principal Components values for traits detected under salt and control conditions (S1); Markers' locations onto the durum wheat reference genome associated with QTL (S2); Markers associated with genes from NCBI database (S4); PCR results and alleles distribrution</p>
Phloem anatomy constraints root system architecture development: theoretical clues from in silico experiments [software and dataset]
<p>Simulation software and results for "<strong>Phloem anatomy constraints root system architecture development: theoretical clues from in silico experiments</strong>"</p>
Manhattan and QQ plots of GWAS on salt stress responses in root system architecture parameters of wild tomato (S. pimpinellifolium)
<p>The population of +/2 200 accessions of wild tomato was screened with the protocol described <a href="https://www.protocols.io/view/studying-root-system-architecture-changes-in-tomat-2mqgc5w">here</a> with the only exception that the plants were transferred 4 days after germination (rather than 3 - described in the protocol). The images were analyzed using the <a href="https://smartroot.github.io/">SmartRoot</a> for days 0, 1, 2, 3, and 4 after transfer to treatment plates (0 or 100 mM NaCl, 1/4 MS, 0.5% sucrose, 0.1% MES, 1% Dashin agar). The data analysis was performed as described <a href="https://rpubs.com/mjulkowska/BIGpimp_RSA_salt">here</a>, while the pareto front calculations were done according to Chandrasekhar & Julkowska paper (<a href="https://www.biorxiv.org/content/10.1101/2021.08.12.456185v1">preprint here</a>). The GWAS was performed using the ASReml script similar to <a href="https://onlinelibrary.wiley.com/doi/10.1111/tpj.15310">Awlia et al. (2021)</a>. The raw GWAS outputs can be found <a href="https://zenodo.org/badge/DOI/10.5281/zenodo.5856310.svg">here</a>. This dataset represents Manhattan plots and QQ plots made out of the data. </p>
Identification of novel genes involved in phosphate accumulation in Lotus japonicus through Genome Wide Association mapping of root system architecture and anion content
<p>130 Lotus japonicus accessions were used. The names and accession numbers are<br> listed in S6 Table. Seeds were scarified with sandpaper and then sterilized 14 minutes in 0.05%<br> sodium hypochlorite. Subsequently, seeds were rinsed and washed 5 times in sterile distilled<br> water. For the germination, seeds were positioned in imbibed filter paper, in sterile Petri dishes,<br> and wrapped in aluminium foil. After 3 days at 21°C, young seedling were transferred to square<br> plates (12 x 12 cm) containing growth medium. Both media used in this<br> study were based on Long-Ashton solution (with two levels of phosphate concentration -20 or<br> 750 μM, LP or HP, respectively) with 0.8% MES buffer (Duchefa Biochemie,<br> Haarlem, The Netherlands), 0.8% agarose (to minimize phosphate contamination), and adjusted<br> to pH 5.7 with 1M KOH. After adding the medium, plates were dried, closed, overnight in a<br> sterile laminar flow hood. Two accessions, with four replicates per each accession, were placed<br> on each plate. Each plate was replicated, with mirrored position of each accession to minimize<br> any positional growth effects. Plates were placed vertically, and plants grown under long-day<br> conditions (21°C, 16 h light/8 h dark cycle) with white light bulbs emitting 50 μmol/m 2 /s and<br> roots were exposed to light. Every day at the same time, the racks were transported to the image<br> acquisition room where images of each plate were acquired with eight Epson V600 CCD flatbed<br> color image scanners (Seiko Epson) and then immediately returned to the growth chamber.</p>
Arabidopsis HapMap screen for salt-induced changes in root architecture and root:shoot ratio - images BA4 experiment
<p>Images of scanned agar plates collected for Arabidopsis accessions exposed to salt stress / control treatment. The data were collected during PhD of Magdalena Julkowska at University of Amsterdam, under supervision of Dr. Christa Testerink. </p>
Arabidopsis HapMap screen for salt-induced changes in root architecture and root:shoot ratio - images BA5 experiment
<p>Images of scanned agar plates collected for Arabidopsis accessions exposed to salt stress / control treatment. The data were collected during PhD of Magdalena Julkowska at University of Amsterdam, under supervision of Dr. Christa Testerink. </p>
GWAS on salt stress responses in root system architecture parameters of wild tomato (S. pimpinellifolium)
<p>The population of +/2 200 accessions of wild tomato was screened with the protocol described <a href="https://www.protocols.io/view/studying-root-system-architecture-changes-in-tomat-2mqgc5w">here</a> with the only exception that the plants were transferred 4 days after germination (rather than 3 - described in the protocol). The images were analyzed using the <a href="https://smartroot.github.io/">SmartRoot</a> for days 0, 1, 2, 3, and 4 after transfer to treatment plates (0 or 100 mM NaCl, 1/4 MS, 0.5% sucrose, 0.1% MES, 1% Dashin agar). The data analysis was performed as described <a href="https://rpubs.com/mjulkowska/BIGpimp_RSA_salt">here</a>, while the pareto front calculations were done according to Chandrasekhar & Julkowska paper (<a href="https://www.biorxiv.org/content/10.1101/2021.08.12.456185v1">preprint here</a>). The GWAS was performed using the ASReml script similar to <a href="https://onlinelibrary.wiley.com/doi/10.1111/tpj.15310">Awlia et al. (2021)</a>. </p>
Data to: Root System Architecture Reorganization Under Decreasing Soil Phosphorus Lowers Root System Conductance of Zea mays
<p>corresponding image data to: Root System Architecture Reorganization Under Decreasing Soil Phosphorus Lowers Root System Conductance of Zea mays</p>
Arabidopsis HapMap screen for salt-induced changes in root architecture and root:shoot ratio - images BA1 experiment
<p>Images of scanned agar plates collected for Arabidopsis accessions exposed to salt stress / control treatment. The data was collected during PhD of Magdalena Julkowska at University of Amsterdam, under supervision of Dr. Christa Testerink. </p>
Arabidopsis HapMap screen for salt-induced changes in root architecture and root:shoot ratio - images BA2 experiment
<p>Images of scanned agar plates collected for Arabidopsis accessions exposed to salt stress / control treatment. The data were collected during PhD of Magdalena Julkowska at University of Amsterdam, under supervision of Dr. Christa Testerink. </p>
Arabidopsis HapMap screen for salt-induced changes in root architecture and root:shoot ratio - images BA7 experiment
<p>Images of scanned agar plates collected for Arabidopsis accessions exposed to salt stress / control treatment. The data were collected during PhD of Magdalena Julkowska at University of Amsterdam, under supervision of Dr. Christa Testerink. </p>
Arabidopsis HapMap screen for salt-induced changes in root architecture and root:shoot ratio - images BA3 experiment
<p>Images of scanned agar plates collected for Arabidopsis accessions exposed to salt stress / control treatment. The data were collected during PhD of Magdalena Julkowska at University of Amsterdam, under supervision of Dr. Christa Testerink.</p>
Arabidopsis HapMap screen for salt-induced changes in root architecture and root:shoot ratio - images BA6 experiment
<p>Images of scanned agar plates collected for Arabidopsis accessions exposed to salt stress / control treatment. The data were collected during PhD of Magdalena Julkowska at University of Amsterdam, under supervision of Dr. Christa Testerink. </p>
Data from: Soil nutrient availability rather than spatial nutrient heterogeneity shapes the intraspecific response of root architectural, morphological, and mycorrhizal traits in <em>Vaccinium myrtillus</em>
Open the record for dataset details and reuse information.
Phenome-to-genome insights for evaluating root system architecture in field studies of maize
Open the record for dataset details and reuse information.
Citrus Tree Root System Image Dataset: Effects of Propagation Methods on Root Architecture
<p>This dataset is composed of images from two different citrus rootstock trials designated "Field Trial 1" and "Field Trial 2". Each field trial was planted with trees of <em>Citrus sinensis</em> cv. 'Valencia' grafted onto 4 different, commercially available USDA citrus rootstocks: US-812, US-897, US-942, US-1516. The trees were excavated two years after planting, cleaned, dried, and imaged in two ways. First, the root systems were imaged radially as though you are looking down through the trunk of the tree with the roots radiating outward in all direction. Secondly, the root systems were imaged vertically in six different positions such that each image was a side view of the root system from a different angle. Additionally, the binary masks of the vertical root systems were included in each .tar file.</p> <p>All images were acquired with a Canon EOS Rebel T6 against a professional photography blue screen. A mapping of the image names to the experimental trial information is included in each .tar file, and a series of scaled images were taken before and after root system imaging to calculate the pixel to centimeter conversion for absolute measurements.</p> <p>This dataset is currently in beta as it may change at some point in the future, therefore until that time, this record will be set to restricted.</p>
Shade alters grass growth and architecture by reducing root biomass
<p>Variable tree cover characterizes tropical grassy biomes. Light availability in the ground layer becomes increasingly limited as tree cover increases while open canopy environments are associated with a flammable grassy ground layer. Grass species dominating the ground layer of these ecosystems have adopted strategies to persist and proliferate with frequent fire. However, there is limited understanding of how grass growth and flammability traits respond to changes in light availability. We experimentally grew 14 grass species characteristic of the Malagasy Central Highlands for one year with four treatments of light exclusion ranging from 0 – 60%. Six plant functional traits and four leaf flammability traits were measured: plant height, bulk density, aboveground biomass, belowground biomass, ratio of root to shoot biomass, specific leaf area, leaf heat release capacity, temperature of maximum decomposition, total heat release and peak heat release rate. Belowground biomass, the ratio of root to shoot biomass and bulk density were substantially negatively affected by decreasing light availability while aboveground biomass showed no significant change although, there was a trend towards smaller plants at high shade. Specific leaf area increased with declining light availability. In terms of leaf flammability, unexpectedly, only leaf total heat release was significantly positively affected and the other traits were not. These suggest that any field alterations in grass flammability would be primarily underpinned by changes in plant architecture and potentially microclimate. The reductions observed in belowground biomass suggests that grasses would be rapidly lost from shaded environments with a diminished competitive capacity to resprout.</p>
Hydraulic architecture with high-fraction of root resistance
<p>The hydraulic architecture of plants constrains water transport and carbon gain through stomatal limitation to CO<sub>2</sub> absorption. Leaf, stem, and root organs are composed of plant hydraulic architecture, of which the root is the main bottleneck of water transport for a wide range of plant species. The present study aimed to assess the ecophysiological mechanism and importance of the high fraction of root hydraulic resistance. Biomass partitioning and hydraulic conductance of leaves, stems and roots were measured using Japanese knotweed (<i>Fallopia japonica</i>, perennial herb), and Japanese zelkova (<i>Zelkova serrata</i>, deciduous tall tree). Additionally, theoretical analyses examined whether the measured hydraulic architecture and biomass partitioning maximized plant photosynthetic rate, which is the product of leaf area and photosynthetic rate per leaf area. Root hydraulic resistance accounted for 86% and 76% of the total plant resistance for Japanese knotweed and Japanese zelkova trees, respectively. According to comparisons of hydraulic and biomass partitionings, high root-resistance fractions were attributable to low biomass partitioning into root organs rather than high mass-specific root conductance. The measured partitioning of hydraulic resistance closely corresponded to the predicted optimal partitioning maximizing plant photosynthetic rate for the two species. The high fraction of root resistance was still predicted to be optimal with variations in air humidity and soil water potential. <span>These results suggest that the hydraulic architecture of a plant growing in mesic and fertile habitats resulted in a high fraction of root resistance due to small biomass partition into root organ, but contributed to efficient carbon gain</span>.</p>
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