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759 results for “Plant–plant interactions”
HSFA1a controls plant heat stress response through its action on the 3D chromatin reorganization of enhancer-promoter interactions.
GEO Series GSE206365. Solanum lycopersicum. 79 samples. Type: Genome binding/occupancy profiling by high throughput sequencing; Other; Expression profiling by high throughput sequencing.
Gene expression analysis of RACB-transgenic barley plant lines in interaction with Blumeria graminis f.sp. hordei
GEO Series GSE69215. Hordeum vulgare. 48 samples. Type: Expression profiling by array.
Protein-interaction profile sequencing of 4 week old leaves in Arabidopsis ABI3:MTA plants.
GEO Series GSE108767. Arabidopsis thaliana. 16 samples. Type: Other.
Physiochemical interaction between osmotic stress and a bacterial exometabolite promotes plant disease
GEO Series GSE242479. Arabidopsis thaliana. 23 samples. Type: Expression profiling by high throughput sequencing.
Ustilago maydis effector Jsi1 interacts with Topless corepressor, hijacking plant JA/ET signaling
GEO Series GSE142128. Arabidopsis thaliana. 12 samples. Type: Expression profiling by high throughput sequencing.
HSFA1a controls plant heat stress response through its action on the 3D chromatin reorganization of enhancer-promoter interactions [RNA-seq 2]
GEO Series GSE206363. Solanum lycopersicum. 18 samples. Type: Expression profiling by high throughput sequencing.
Cryptochromes interact directly with PIFs to control plant growth in limiting blue light
GEO Series GSE59699. Arabidopsis thaliana. 36 samples. Type: Expression profiling by high throughput sequencing.
HSFA1a controls plant heat stress response through its action on the 3D chromatin reorganization of enhancer-promoter interactions [HiChIP]
GEO Series GSE206361. Solanum lycopersicum. 2 samples. Type: Other.
VASCULAR PLANT ONE-ZINC FINGER1 (VOZ1) and VOZ2 interact with CONSTANS in photoperiodic control of flowering
GEO Series GSE111342. Arabidopsis thaliana. 4 samples. Type: Expression profiling by array.
Data from: Interactions among predators and plant specificity protects herbivores from top predators
The worldwide loss of top predators from natural and agricultural systems has heightened the need to understand how important they are in controlling herbivore abundance. The effect of top predators on herbivore species is likely to depend on 1) the importance of the consumption of intermediate predators by top predators (intra-guild predation; IGP), but also on 2) plant specificity by herbivores, because specialists may defend themselves better (enemy-free space; EFS). Insectivorous birds, as top predators, are generally known to effectively control herbivorous insects, despite also consuming intermediate predators such as spiders, but how this effect varies among herbivore species in relation to the cascading effects of IGP and EFS is not known. To explore this, we excluded birds from natural fynbos vegetation in South Africa using large netted cages and recorded changes in abundance relative to control plots for 199 plant-dwelling intermediate predator and 341 herbivore morpho-species that varied in their estimated plant specificity. We found a strong negative effect of birds on the total abundance of all intermediate predators, with especially clear effects on spiders (strong IGP). In contrast with previous studies, which document a negative effect of birds on herbivores, we found an overall neutral effect of birds on herbivore abundance, but the effect varied among species: some species were negatively affected by birds, suggesting that they were mainly consumed by birds, whereas others, likely released from spiders by IGP, were positively affected. Some species were also effectively neutrally affected by birds. These tended to be more specialized to plants compared to the other species, which may imply that some plant specialists benefited from protection provided by EFS from both birds and spiders. These results suggest that the response of herbivore species to top predators may depend on cascading effects of interactions among predators and on their degree of plant specificity.
Data from: Refuges from fire maintain pollinator-plant interaction networks
Fire is a major disturbance factor in many terrestrial ecosystems, leading to landscape transformation in fire‐prone areas. Species in mutualistic interactions are often highly sensitive to disturbances like fire events, but the degree and complexity of their responses are unclear. We use bipartite insect–flower interaction networks across a recently burned landscape to explore how plant–pollinator interaction networks respond to a recent major fire event at the landscape level, and where fire refuges were present. We also investigate the effectiveness of these refuges at different elevations (valley to hilltop) for the conservation of displaced flower‐visiting insects during fire events. Then, we explore how the degree of specialization of flower‐visiting insects changes across habitats with different levels of fire impact. We did this in natural areas in the Greater Cape Floristic Region (GCFR) biodiversity hotspot, which is species rich in plants and pollinators. Bees and beetles were the most frequent pollinators in interactions, followed by wasps and flies. Highest interaction activity was in the fire refuges and least in burned areas. Interactions also tracked flower abundance, which was highest in fire refuges in the valley and lowest in burned areas. Interactions consisted mostly of specialized flower visitors, especially in refuge areas. The interaction network and species specialization were lowest in burned areas. However, species common to at least two fire classes showed no significant difference in species specialization. We conclude that flower‐rich fire refuges sustain plant–pollinator interactions, especially those involving specialized species, in fire‐disturbed landscape. This may be an important shelter for specialized pollinator species at the time that the burned landscape goes through regrowth and succession as part of ecosystem recovery process after a major fire event.
Data from: Plant defenses interact with insect enteric bacteria by initiating a leaky gut syndrome
Plants produce suites of defenses that can collectively deter and reduce herbivory. Many defenses target the insect digestive system, with some altering the protective peritrophic matrix (PM) and causing increased permeability. The PM is responsible for multiple digestive functions, including reducing infections from potential pathogenic microbes. In our study, we developed axenic and gnotobiotic methods for fall armyworm (Spodoptera frugiperda) and tested how particular members present in the gut community influence interactions with plant defenses that can alter PM permeability. We observed interactions between gut bacteria with plant resistance. Axenic insects grew more, but displayed lower immune-based responses compared to those possessing Enterococcus, Klebsiella, and Enterobacter isolates from field-collected larvae. While gut bacteria reduced performance of larvae fed on plants, none of the isolates produced mortality when injected directly into the hemocoel. Our results strongly suggest that plant physical and chemical defenses not only act directly upon the insect, but also have some interplay with the herbivore's microbiome. Combined direct and indirect, microbe-mediated assaults by maize defenses on the fall armyworm on the insect digestive and immune system reduced growth and elevated mortality in these insects. These results imply that plant-insect interactions should be considered in the context of potential mediation by the insect gut microbiome.
Data from: Specialist insect herbivore and light availability do not interact in the evolution of an invasive plant
Release from specialist insect herbivores may allow invasive plants to evolve traits associated with decreased resistance and increased competitive ability. Given that there may be genetic trade-off between resistance and tolerance, invasive plants could also become more tolerant to herbivores. Although it is widely acknowledged that light availability affects tolerance to herbivores, little information is available for whether the effect of light availability on tolerance differ between the introduced and native populations. We conducted a common garden experiment in the introduced range of Alternanthera philoxeroides using ten invasive US and ten native Argentinean populations at two levels of light availability and in the presence or absence of a specialist stem-boring insect Agasicles hygrophila. Plant biomass (total and storage root biomass), two allocation traits (root/shoot ratio and branch intensity, branches biomass/main stem biomass) and two functional traits (specific stem length and specific leaf area), which are potentially associated with herbivore resistance and light capture, were measured. Overall, we found that A. philoxeroides from introduced ranges had comparable biomass and tolerance to specialist herbivores, lower branch intensity, lower specific stem length and specific leaf area. Moreover, introduced populations displayed higher shade tolerance of storage root biomass and lower plastic response to shading in specific stem length. Finally, light availability had no significant effect on evolution of tolerance to specialist herbivores of A. philoxeroides. Our results suggest that post-introduction evolution might have occurred in A. philoxeroides. While light availability did not influence the evolution of tolerance to specialist herbivores, increased shade tolerance and release from specialist insects might have contributed to the successful invasion of A. philoxeroides.
Data from: Trait-mediated indirect interactions: moose browsing increases sawfly fecundity through plant induced responses
1. Induced responses in plants, initiated by herbivory, create potential for trait-mediated indirect interactions among herbivores. Responses to an initial herbivore may change a number of plant traits that subsequently alter ecological processes with additional herbivores. Although common, indirect interactions between taxonomically distant herbivores, such as mammals and insects, are less studied than between taxonomically related species (i.e. insect-insect). In terms of mammal-insect interactions, effects on insect numbers (e.g. density) is relatively well studied, whereas effects on performance (e.g. fecundity) are rarely explored. Moreover, few studies have explored mammal-insect interactions on coniferous plants. 2. The aim of this study was to investigate the effect of mammalian induced responses on insect performance. We specifically investigated the effect of moose (Alces alces) browsing on Scots pine (Pinus sylvestris) and subsequent effects on sawfly (Neodiprion sertifer) performance. 3. Sawfly larvae were reared on browsed, clipped and un-browsed control pine trees in a controlled field experiment. Afterwards cocoon weight was measured. Needle C:N ratio and di-terpene content was measured in response to browsing. 4. Sawfly performance was enhanced on trees browsed by moose. Cocoon weight (proxy for fecundity) was 9 and 13 % higher on browsed and clipped trees compared to un-browsed trees. Cocoon weight was weakly related to needle C:N ratio, and browsed trees had lower a C:N ratio compared to un-browsed trees. Needle di-terpene content, known to affect sawfly performance, was neither affected by the browsing treatments nor did it correlate with sawfly weight. 5. We conclude that mammalian herbivory can affect insect herbivore performance, with potential consequences for ecological communities, and with particular importance for insect population dynamics. The measured plant variables could not fully explain the effect on sawfly performance providing a starting point for the consideration of additional plant responses induced by mammalian browsing affecting insect performance.
The Ecology of Plant Hummingbird Interactions (EPHI) - Brazil
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Plant–soil interactions in a deglaciated landscape: Roots reflect environmental severity
<p>Supported data set of basic soil properties and Arctic willow roots and leaves elements and substances composition for the article "Plant–soil interactions in a deglaciated landscape: Roots reflect environmental severity" submitted to Scandinavian Journal of Forest Research.</p>
Data from: Genome-wide analysis of alternative splicing landscapes modulated during plant-virus interactions in Brachypodium distachyon
In eukaryotes, alternative splicing (AS) promotes transcriptome and proteome diversity. The extent of genome-wide AS changes occurring during a plant-microbe interaction is largely unknown. Here, using high-throughput, paired-end RNA sequencing, we generated an isoform-level spliceome map of Brachypodium distachyon infected with Panicum mosaic virus and its satellite virus. Overall, we detected ∼44,443 transcripts in B. distachyon, ∼30% more than those annotated in the reference genome. Expression of ∼28,900 transcripts was ≥2 fragments per kilobase of transcript per million mapped fragments, and ∼42% of multi-exonic genes were alternatively spliced. Comparative analysis of AS patterns in B. distachyon, rice (Oryza sativa), maize (Zea mays), sorghum (Sorghum bicolor), Arabidopsis thaliana, potato (Solanum tuberosum), Medicago truncatula, and poplar (Populus trichocarpa) revealed conserved ratios of the AS types between monocots and dicots. Virus infection quantitatively altered AS events in Brachypodium with little effect on the AS ratios. We discovered AS events for >100 immune-related genes encoding receptor-like kinases, NB-LRR resistance proteins, transcription factors, RNA silencing, and splicing-associated proteins. Cloning and molecular characterization of SCL33, a serine/arginine-rich splicing factor, identified multiple novel intron-retaining splice variants that are developmentally regulated and modulated during virus infection. B. distachyon SCL33 splicing patterns are also strikingly conserved compared with a distant Arabidopsis SCL33 ortholog. This analysis provides new insights into AS landscapes conserved among monocots and dicots and uncovered AS events in plant defense-related genes.
Interactions between Verticillium longisporum and plant terpenes
GEO Series GSE158956. Verticillium longisporum. 12 samples. Type: Expression profiling by high throughput sequencing.
Transcriptome analysis indicates the involvement of herbicide-responsive and plant–pathogen interaction pathways in the development of resistance to ACCase inhibitors in Apera spica-venti
GEO Series GSE204857. Apera spica-venti. 32 samples. Type: Expression profiling by high throughput sequencing.
LHP1 interacts with ATRX through plant-specific domains at specific loci targeted by PRC2
GEO Series GSE101777. Arabidopsis thaliana. 12 samples. Type: Expression profiling by high throughput sequencing.
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Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
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
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
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.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.