Microarray experiment on Arabidopsis roots infected with M. incognita for mutant lines of DSC1 and WRKY19 compared to Col-0
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ABSTRACT:
ORGANISM(S): Arabidopsis thaliana
SUBMITTER: Sonja Warmerdam
PROVIDER: E-MTAB-6897 | biostudies-arrayexpress |
REPOSITORIES: biostudies-arrayexpress
Similar Datasets
Project description:In this experiment we investigate the transcription profile of M. inocognita infection at the start of the infection and 7 days later in A. thalinana Col-0 plants. This was compared to M. incognita infected material of the plant line erf6-1, a T-DNA insertion mutant in ERF6. The data showed the role of ERF6 during early M. incognita infection in Arabidaaaaaaaaaaopsis besides more insight in the transcription regulated by M. incognita in Col-0 the wildtype plant. Samples are taken from whole root systems of 14 (0 days after infection) or 21 (7 days after infection) day old plants.
2019-01-10 | E-MTAB-6711 | biostudies-arrayexpress
Project description:We compared the gene expression of wild-type Col-0 and a T-DNA mutant SALK_116381C (opr2-1). We either infected or mock-infected the plants with the root knot nematode Meloidogyne incognita and measured the root transcriptome after 0, 1, 4, and 7 days post infection using RNA-seq. The aim of the experiment was to determine whether opr2-1 affected gene expression patterns induced by nematode infection.
2022-12-24 | E-MTAB-11583 | biostudies-arrayexpress
Project description:In this experiment we measured the transcriptional response of ten tomato cultivars when infected by the plant-parasitic nematode M. incognita. The ten cultivars showed differential levels of susceptibility to M. incognita infection. Ten-days old plants were exposed to nematodes and harvested 1, 2, 3, 4, 7, or 10 days post infection. Galls or representative uninfected tissues were harvested and used for RNA sequencing. The data was used to investigate the link between susceptibility to M. incognita infection and gene expression in tomato.
2023-07-30 | E-MTAB-12044 | biostudies-arrayexpress
Project description:The differentiation of specialized feeding sites in Arabidopsis root cells in response to nematode infestation involves substantial cellular reprogramming of host cells that is not well characterized at the molecular level. Expression data was generated from Arabidopsis root cells undergoing giant cell formation due to nematode infestation and from non-infested control root cells. Cells were laser captured 14 and 21 days after infestation. Samples, collected 14 days post infestation, consisted of three biological replicates per treatment (control root cells or giant cells). RNA samples were isolated from ~150 control cells or from ~80 giant cells using the PicoPure RNA Isolation Kit (Arcturus, Mountain View, USA). RNA amplifications were carried out with the NuGEN WT-Ovation Pico kit. GSM546568-GSM546577: Control and giant cells collected 21 days post infestation.
2012-04-26 | E-GEOD-37553 | biostudies-arrayexpress
Project description:111,556,278 high-quality reads were obtained by a deep-sequencing approach that show an exact match to the genome of Meloidogyne incognita from the library of J2 juveniles of M. incognita (Mi). Based on these Solexa reads, 89 M. incognita microRNA genes were identified, which grouped into 67 non-redundant miRNAs with mature sequences. All of these candidate miRNAs were confirmed by qRT-PCR, and 26 of them could be detected in the library of the galls of cucumber root infected by M. incognita (GC). MiR-100 was found in a cluster with let-7, which is similar with B. malayi, a human parasitic nematode. Based on the results of deep sequencing, the expression of miR-100 was much more abundant than that of let-7, which indicated that they may not be co-expressed. The ortholog of let-7, a key regulator that controls the nematode from L4 to adult in C. elegans, could be frequently sequenced in the GC library, the later stages of development of M. incognita, while it had a relative low expression level in J2, which indicated that let-7 may have a similar role in the development regulation in plant parasitic nematodes. Frequently sequenced microRNAs, including miR-71, miR-100 and miR-124, should play an important role in the growth and proliferation of M. incognita. Identifying microRNAs of M. incognita based on deep-sequencing of the small RNAs of an Mi library, the J2 juveniles, and comparing their expression levels with those in a GC library, the gall of cucumber root infected with M. incognita.
2011-07-21 | E-GEOD-24833 | biostudies-arrayexpress
Project description:The differentiation of specialized feeding sites in Zea mays root cells in response to nematode infestation involves substantial cellular reprogramming of host cells that is not well characterized at the molecular level. Expression data was generated from Zea mays root cells undergoing giant cell formation due to nematode infestation and from non-infested control root cells. Cells were laser captured 14 and 21 days after infestation. Each time point (14 day and 21 day) consisted of three biological replicates per treatment (control root cells or giant cells). Control cells were captured from an area ~13,000,000 um2 in size and giant cells were captured from an area ~5,000,000 um2 in size. RNA samples were isolated using the PicoPure RNA Isolation Kit (Arcturus, Mountain View, USA). RNA amplifications were carried out with the NuGEN WT-Ovation Pico kit.
2012-04-27 | E-GEOD-37556 | biostudies-arrayexpress
Project description:affy_pathogen_medicago - In compatible interaction between plants and biotrophic microorganisms, neoformation of organs occurs to ensure an efficient relationship between both partners. During the interaction between Medicago truncatula and Sinorhizobium meliloti, bacteria induce the development of root nodule with a permanent meristem, and chronically infect plant cells from zone II before differentiating into atmospheric nitrogen fixing bacteroids. M. truncatula is also plant host for root-knot nematodes, such as Meloidogyne incognita. During this compatible pathogenic interaction, root-knot nematodes induce redifferenciation of root cells from the vascular cylinder into specialized feeding cells called “giant cells”. Hyperplasia and hypertrophy of the surrounding cells lead to the formation of typical root galls. This phenomenon invokes host pathways in common with those necessary for nitrogen-nodule formation, suggesting that nematode and rhizobia exploit a relative common strategy of plant cell infection at the cellular and molecular levels. In order to highlight key genes involved in gall and nodule developments, parallel laser microdissection of giant cells from galls and cells from zone II of nodules, followed by transcriptomic analysis, were performed. The RNA pools were extracted from these cells, amplified and used for transcriptomic studies with M. truncatula Affymetrix DNA chips. Keywords: organ comparison 12 arrays - Medicago infected with M. incognita or S. meliloti.
2012-03-01 | E-GEOD-19872 | biostudies-arrayexpress
Project description:affy_meloidogyne_rice2 - affy_meloidogyne_rice2 - Plant-parasitic nematodes cause heavy economic losses to global agriculture. The root knot nematode, Meloidogyne incognita, is an obligate parasite that causes significant damage to a broad range of host plants. M. incognita infection to dicotyledous plants is extensively studied but it is also important to study their interaction with monocotyledous plants, in particular with cereals. In our growing conditions, as of day 6, histological studies revealed a profound rice tissue reorganisation around nematodes, notably characterized by the plant feeding site formation. We are investigating the molecular plant response to M. incognita by carrying out a global analysis of gene expression during gall formation in rice, using giant cell-enriched root tissues at this early stage (6dpi) of gall development-Oryza sativa (var. Nipponbare) seedlings were grown on 6 cm3 SAP substrate completed with diluted Hoaglands solution (Reversat et al., 1999). Culture units were placed in a growth chamber illuminated with fluorescent tubes 9/24 h and maintained at 23°C for 6 days before being inoculated with a 300 J2-stage juveniles M. incognita. One day after inoculation (dai), the rice seedlings were immersed in de-ionised water to remove all J2s that had not penetrated the roots and allowing synchronization of the infection. Each seedling was transferred to a hydroponic mini chamber (Reversat et al., 2004). Sampling was performed at 6 dai and each of them contained galls from 45 infected plants, they were then hand-dissected, frozen in liquid-nitrogen and stored at -80°C. As reference samples, uninfected meristematic root fragments were dissected from seedlings grown under the same conditions. Each sample was replicated 3 times. Keywords: normal vs disease comparison 6 arrays - rice
2011-09-24 | E-GEOD-21772 | biostudies-arrayexpress
Project description:The biocontrol agent Pythium oligandrum, which is a member of phylum Oomycota, can control diseases caused by a taxonomically wide range of plant pathogens, including fungi, bacteria, and oomycetes. However, whether P. oligandrum could control diseases caused by plant root-knot nematodes (RKNs) was unknown. We investigated a recently isolated P. oligandrum strain GAQ1, and the P. oligandrum CBS530.74 strain, for the control of RKN Meloidogyne incognita infection of tomato (Solanum lycopersicum L.). Initially, P. oligandrum culture filtrates were found to be lethal to M. incognita second-stage juveniles (J2s) with up to 84% mortality at 24 h after treatment compared to 14% in the control group. Consistent with the lethality to M. incognita J2s, tomato roots treated with P. oligandrum culture filtrates reduced the attraction of nematodes, and the number of nematodes penetrating the roots was reduced by up to 78%. In a greenhouse pot trial, P. oligandrum GAQ1 inoculation of tomato plants significantly reduced the gall number by 58% in plants infected with M. incognita. Notably, P. oligandrum GAQ1 mycelial treatment significantly increased tomato plant height (by 36%), weight (by 27%), and root weight (by 48%). Transcriptome analysis of tomato seedling roots inoculated with the P. oligandrum GAQ1 strain identified ~2,500 differentially expressed genes. The enriched GO terms and annotations in the up-regulated genes suggested modulation of plant hormone-signaling and defense-related pathways in response to P. oligandrum. In conclusion, our results support that P. oligandrum GAQ1 can serve as a potential biocontrol agent for M. incognita control in tomato. Multiple mechanisms appear to contribute to the biocontrol effect involving direct inhibition of M. incognita, potential priming of tomato plant defenses, and plant growth promotion.
2024-04-01 | GSE262653 | GEO
Project description:We mainly descibed expression of genes of Meloidogyne incognita second stage juveniles under starvation stress
2022-03-02 | GSE168150 | GEO