AEQ
Ontology highlight
ABSTRACT:
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| ERR106426.fastq.gz | Fastqsanger.gz |
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Project description:Epidemics of coffee leaf rust (CLR) lead to great yield losses and huge depreciation of coffee marketing values, if no control measures are applied. Societal expectations of a more sustainable coffee production are increasingly imposing the replacement of pesticide treatments by alternative solutions. A good protection strategy is to take advantage of the plant immune system by eliciting its constitutive defenses. Based on such concept, plant resistance inducers (PRIs) have been developed. The Greenforce CuCa formulation made by UFLA (Brazil) is, in addition to acibenzolar-S-methyl (ASM), showing promising results in the control of CLR (Hemileia vastatrix) in Coffea arabica. In order to improve our understanding of the molecular mechanisms of the PRIs, proteomic (2DE-MALDI/TOF/TOF-MS/MS), physiological (leaf gas-exchange) and biochemical (enzymatic) analyses of coffee leaves treated with Greenforce CuCa and ASM and inoculation with H. vastatrix were performed. Proteomic data showed metabolic adjustments mainly related with photosynthesis, protein metabolism and stress responses but, the proteins modulated by the two PRIs were different. Greenforce CuCa, on its own, increased photosynthesis and stomatal conductance, while ASM caused a decrease in these parameters. Upon H. vastratix infection, the Greenforce CuCa showed a higher protective effect on the leaf physiology than ASM. The enzymatic analyses indicated that Greenforce CuCa reinforces the redox homeostasis of the leaf, while ASM seems to increase the involvement of secondary metabolism. So, the PRIs prepare the plant to resist CLR but, inducing different defense mechanisms upon pathogen infection. The data also evidenced the existence of a link between the primary metabolism and defense responses. Furthermore, Greenforce CuCa emerged as a significant agent for CLR management. The identification of components of the plant primary metabolism, essential for plant growth and development that, simultaneously, participate in the plant defense responses can open new perspectives for plant breeding programs.
2020-03-31 | PXD016012 | Pride
Project description:Illumina HiSeq2500 technology was used to generate mRNA-sequencing expression profiles of sexual stages of the poplar rust fungus M. larici-populina: - Basidia (BSD) were collected from rust-infected dead poplar leaves; - Pycnia (PYC) -also called spermogonia- were collected from rust-infected larch needles one week after inoculation with basidiospores and corresponded to different haploid fungal cell types such as in planta infection hyphae, receptive hyphae and pycniospores; - Aecia (AEC) were collected from rust-infected larch needles two weeks after inoculation, and corresponded to freshly produced aecia and dikaryotic aeciospores and remaining pycnia. Paired-end reads of 100bp were generated for three sets of biological replicates corresponding to each of the targeted stage and aligned to the genome of M. larici-populina isolate 98AG31 (version 2.0; US Department of Energy Joint Genome Institute; http://genome.jgi.doe.gov/Mellp2_3/Mellp2_3.home.html) using CLC Genomics Workbench 12.0
2021-07-24 | GSE180724 | GEO
Project description:Illumina HiSeq2500 technology was used to generate mRNA-sequencing expression profiles of sexual stages of the poplar rust fungus M. larici-populina: - Basidia (BSD) were collected from rust-infected dead poplar leaves; - Pycnia (PYC) were collected from rust-infected larch needles one week after inoculation with basidiospores and corresponded to different haploid fungal cell types such as in planta infection hyphae, receptive hyphae and pycniospores; - Aecia (AEC) were collected from rust-infected larch needles two weeks after inoculation, and corresponded to freshly produced aecia and dikaryotic aeciospores and remaining pycnia. Paired-end reads of 100bp were generated for three sets of biological replicates corresponding to each of the targeted stage and aligned to the genome of M. larici-populina isolate 98AG31 (version 1.0; US Department of Energy Joint Genome Institute; http://genome.jgi.doe.gov/Mellp1/Mellp1.home.html; Duplessis et al. 2011a) using CLC Genomics Workbench 8.0.1
2018-01-15 | GSE106863 | GEO
Project description:Oligoarray expression profiling was carried out in poplar leaves upon infection with rust in order to identify genes expressed during tree defense response. For this purpose, we inoculated detached leaves of the interamerican hybrid poplar Populus trichocarpa x Populus deltoides 'Beaupré' grown in greenhouse either with spores of avirulent strain 93ID6 (incompatible interaction I48) or spores of virulent strain 98AG31 (compatible interaction C48) of the pathogenic rust fungus Melampsora larici-populina. Besides, we mock-inoculated 'Beaupré' leaves with water (control condition, T48). Detached leaves were maintained in vitro in controled conditions to allow fungal infection and colonization of plant tissue. Leaves were sampled 48 hours post-inoculation after that the fungus attempt to penetrate plant cells in mesophyll. Keywords: Plant tissue infection, Plant defense response, Oligonucleotide array
2007-03-15 | GSE7098 | GEO
Project description:Microarray expression profiling was carried out in poplar leaves upon infection with rust in order to identify genes expressed during tree defense response. For this purpose, we inoculated detached leaves of the interamerican hybrid poplar Populus trichocarpa x Populus deltoides 'Beaupré' grown in greenhouse with spores of avirulent strain 93ID6 of the pathogenic rust fungus Melampsora larici-populina (incompatible interaction, I48). Besides, we mock-inoculated 'Beaupré' leaves with water (control condition, T48). Detached leaves were maintained in vitro in controled conditions to allow fungal infection and colonization of plant tissue. Leaves were sampled 48 hours post-inoculation after that the fungus attempt to penetrate plant cells in mesophyll. Competitive hybridization between transcripts of incompatible interaction (I48) and control condition (T48) was done on Populus PICME 28K cDNA microarray. Keywords: Time-course infection of plant tissue, defense response, cDNA microarray
2007-03-15 | GSE7049 | GEO
Project description:Hemileia vastatrix HvCat Genome sequencing
| PRJNA188788 | ENA