Microarray analyses of pathogen-induced transcriptome changes in the Arabidopsis mutant med14
Ontology highlight
ABSTRACT:
ORGANISM(S): Arabidopsis thaliana
SUBMITTER: Jin Yao
PROVIDER: E-GEOD-45215 | biostudies-arrayexpress |
REPOSITORIES: biostudies-arrayexpress
Similar Datasets
Project description:The goal of the microarray was to investigate the transcriptome changes induced by exogenous NAD+ in the wild-type Col-0 plants. Results showed that exogenous NAD+-induced dramatic transcriptional changes in Arabidopsis. Particularly, a large group of salicylic acid pathway genes including NPR1 and its traget genes were induced by NAD+, whereas the jasmonic acid/ethylene pathway defense marker gene PDF1.2 was inhibited by NAD+ treatment. In addition, a group of the pathogen-associated molecular pattern pathway genes were also induced by exogenous NAD+. These results indicate that exogenous NAD+ induces defense pathways against (hemi)biotrophic pathogens but suppresses defense against necrotrophs. Two to three replicates with leaves from 8-12 plants per sample were collected at 0, 4, and 24 hr after NAD+ treatment. Leaf tissues were collected as the control at 0 hr, and NAD+-treated leaf tissues were collected at 4 and 24 hr. After extraction, RNA concentration was determined on a NanoDrop Spectrophotometer (Thermofisher Scientific, Waltham, MA) and sample quality was assessed using the 2100 Bioanalyzer (Agilent Technologies, Santa Clara, CA). Equal amount of RNA from the biological replicates were used for microarray analysis.
2016-01-07 | E-GEOD-76568 | biostudies-arrayexpress
Project description:The goal of the microarray experiment was to determine the induction kinetics of transcriptome changes and to identify differentially expressed genes in the Arabidopsis mutant med14 and wild type in response to infection of the avirulent bacterial pathogen Pst DC3000/avrRpt2. Results indicated that med14 exhibited slower kinetcis of transcriptional changes than the wild type after Pst DC3000/avrRpt2 infection, and the induction of a large group of defense genes was suppressed in the med14 mutant. Three biological replicates with leaves from 8 plants per sample were collected at 0, 4, 8, and 12 hours after inoculation with the avirulent bacterial pathogen Pst DC3000/avrRpt2. After extraction, RNA concentration was determined on a NanoDrop Spectrophotometer (Thermofisher Scientific, Waltham, MA) and sample quality was assessed using the 2100 Bioanalyzer (Agilent Technologies, Santa Clara, CA). Each replicate was used as one sample for microarray analysis.
2013-05-18 | E-GEOD-45212 | biostudies-arrayexpress
Project description:The goal of the microarray experiment was to identify genes that are differentially expressed among the Arabidopsis mutant med14, med16, npr1, and wild type in response to infection of the avirulent bacterial pathogen Pst DC3000/avrRpt2. Results indicated that the induction of a large group of defense genes was suppressed in the med14 mutant compared with both med16 and the wild type. Three biological replicates with leaves from 8 plants per sample were collected at 0 and 4 hours after inoculation with the avirulent bacterial pathogen Pst DC3000/avrRpt2. After extraction, RNA concentration was determined on a NanoDrop Spectrophotometer (Thermofisher Scientific, Waltham, MA) and sample quality was assessed using the 2100 Bioanalyzer (Agilent Technologies, Santa Clara, CA). Each replicate was used as one sample for microarray analysis.
2013-05-18 | E-GEOD-45214 | biostudies-arrayexpress
Project description:The goal of the microarray experiment was to identify defense genes that were differentially expressed in the Arabidopsis mutants med16, med8, elp2, wild type in response to infection of the necrotrophic fungal pathogen Sclerotinia sclerotiorum. Results indicated that, compared with the wild type, the jasmonic acid (JA) biosynthesis genes LOX3, AOC3, and OPR3, ethylene (ET) biosynthesis genes ACS2 and ACS8, as well as salicylic acid (SA) biosynthesis genes ICS1 and EDS5 were up-regulated in med16 in local tissues at 1 day post-inoculation (dpi) and/or systemic tissues at 4 dpi. Surprisingly, however, while a number of SA pathway genes (EDS1, PAD4, NPR1, WRKY18, WRKY38, WRKY53, PR1, and PR2) and several JA-regulated wound-responsive genes (MYC2, JAR1, VSP1, and VSP2) were up-regulated in med16, a group of JA/ET-regulated defense genes (ORA59, ERF1, ERF14, PDF1.2, PDF1.2b, PDF1.2c, PDF1.3, PR4, and ChiB) and PR5 were down-regulated. On the other hand, only a few of these genes were differentially expressed between med8 or elp2 and the wild type. Three biological replicates with leaves from 8-12 plants per sample were collected at 0, 1, 2, and 4 days post-inoculation (dpi) after inoculation with the necrotrophic fungal pathogen Sclerotinia sclerotiorum. Leaf tissues were collected as controls at 0 dpi, the inoculated leaves were collected as local tissues at 1 dpi, and the upper uninoculated leaves were collected as systemic tissues at 2 and 4 dpi. After extraction, RNA concentration was determined on a NanoDrop Spectrophotometer (Thermofisher Scientific, Waltham, MA) and sample quality was assessed using the 2100 Bioanalyzer (Agilent Technologies, Santa Clara, CA). Equal amount of RNA from the 3 biological replicates were used for microarray analysis.
2015-01-22 | E-GEOD-65165 | biostudies-arrayexpress
Project description:The goal of the microarray experiment was to identify defense genes that were differentially expressed in the Arabidopsis mutant elp2 and wild type in response to infection of the necrotrophic fungal pathogen Botrytis cinerea. Results indicated that, compared with the wild type, the WRKY33/OCTADECANOID-RESPONSIVE ARABIDOPSIS AP2/ERF59 (ORA59)/ETHYLENE RESPONSE FACTOR1 transcriptional cascades are down-regulated, whereas the MYC2 transcriptional cascade is up-regulated in the elp2 mutant. Three biological replicates with leaves from 8-12 plants per sample were collected at 0, 3, 6, 12, 24, and 48 hours after inoculation with the necrotrophic fungal pathogen Botrytis cinerea. After extraction, RNA concentration was determined on a NanoDrop Spectrophotometer (Thermofisher Scientific, Waltham, MA) and sample quality was assessed using the 2100 Bioanalyzer (Agilent Technologies, Santa Clara, CA). Equal amount of RNA from the 3 biological replicates were used for microarray analysis. The channels of the dual-channel arrays were analyzed independently.
2013-07-01 | E-GEOD-48207 | biostudies-arrayexpress
Project description:The goal of the microarray experiment was to determine the induction kinetics of transcriptome changes in the Arabidopsis mutant Atelp2, npr1 and wild type in response to infection of the avirulent bacterial pathogen Pst DC3000/avrRpt2. Results indicated that Atelp2 exhibited slower kinetcis of transcriptional changes than the wild type after Pst DC3000/avrRpt2 infection, whereas npr1 did not show significant alteration in the induction kinetics. Three biological replicates with leaves from 8 plants per sample were collected at 0, 4, 8, and 12 hours after inoculation with the avirulent bacterial pathogen Pst DC3000/avrRpt2. After extraction, RNA concentration was determined on a NanoDrop Spectrophotometer (Thermofisher Scientific, Waltham, MA) and sample quality was assessed using the 2100 Bioanalyzer (Agilent Technologies, Santa Clara, CA). Each replicate was used as one sample for microarray analysis.
2012-06-29 | E-GEOD-38986 | biostudies-arrayexpress
Project description:The goal of the microarray experiment was to identify defense genes that were differentially expressed in the Arabidopsis mutant At-med16-1 and wild type in response to infection of the avirulent bacterial pathogen Pst DC3000/avrRpt2. Results indicated that, compared with the wild type, several positive regulators of SAR (systemic acquired resistance) were downregulated and a group of SAR negative regulators were upregulated in At-med16-1. Three biological replicates with leaves from 8 plants per sample were collected at 0, 4, 8, and 24 hours after inoculation with the avirulent bacterial pathogen Pst DC3000/avrRpt2. After extraction, RNA concentration was determined on a NanoDrop Spectrophotometer (Thermofisher Scientific, Waltham, MA) and sample quality was assessed using the 2100 Bioanalyzer (Agilent Technologies, Santa Clara, CA). Equal amount of RNA from the 3 biological replicates were pooled as one sample for microarray analysis.
2012-06-29 | E-GEOD-38999 | biostudies-arrayexpress
Project description:To identify genes underpinning the antagonistic effects of extracellular ATP on programmed cell death induced by fumonisin B1 (FB1), we conducted a kinetic DNA microarray experiment using samples harvested in the critical time window when exogenous ATP is known to suppress cell death. Arabidopsis cell suspension cultures were treated with FB1 at time = 0 h and exogenous ATP added at time = 40 h. Differential gene expression analysis using microarrays was performed on samples harvested at 41, 42, 44, and 48 h.
2019-12-31 | E-MTAB-3685 | biostudies-arrayexpress
Project description:Human babesiosis, especially caused by the cattle derived Babesia divergens parasite, is on the increase, resulting in renewed attentiveness to this potentially life threatening emerging zoonotic disease. The molecular mechanisms underlying the pathophysiology and intra-erythrocytic development of these parasites are poorly understood. This impedes concerted efforts aimed at the discovery of novel anti-babesiacidal agents. By applying sensitive cell biological and molecular functional genomics tools, we describe the intra-erythrocytic development cycle of B. divergens parasites from immature, mono-nucleated ring forms to bi-nucleated paired piriforms and ultimately multi-nucleated tetrads that characterizes zoonotic Babesia spp. This is further correlated for the first time to nuclear content increases during intra-erythrocytic development progression, providing insight into the part of the life cycle that occurs during human infection. High-content temporal evaluation elucidated the contribution of the different stages to life cycle progression. Moreover, molecular descriptors indicate that B. divergens parasites employ physiological adaptation to in vitro cultivation. Additionally, differential expression is observed as the parasite equilibrates its developmental stages during its life cycle. Together, this information provides the first temporal evaluation of the functional transcriptome of B. divergens parasites; information that could be useful in identifying biological processes essential to parasite survival for future anti-babesiacidal discoveries. Two-condition experiment, Untreated vs.Treated B. divergens parasites, cultured in human erythrocytes. Treatment with a piperidinyl-benzimidizalone analogue. Biological replicates: 3 untreated (control) replicates, 3 treated replicates. The 6-sample dataset represents untreated(control) vs pooled_reference samples at various timepoints.
2015-04-10 | E-GEOD-67677 | biostudies-arrayexpress
Project description:Data from one animal from B9_B12 group (Cow 31) were not taken into account for the liver samples Treated animals were compared to control (non supplemented cows) Twenty four multiparous Holstein cows were assigned to 6 blocks of 4 animals according to their 305-d milk production during the previous lactation to one of the following treatments: injections saline 0.9% NaCl (Ctl); folic acid (B9); vitamin B12 (B12) or folic acid and vitamin B12 (B9_B12). Biopsies of hepatic (foie for liver) and mammary (mam for mammary gland) tissues were taken from these 24 cows. Microarray analyses were performed on samples from both tissues for 3 animals per treatment in CTL, B9 and B9_B12 and for 4 animals in B12 treatment. Data for hepatic tissue of animal 31 (group B9_B12) were not included. For both tissues, treated animals were compared to control.
2016-06-30 | E-GEOD-77421 | biostudies-arrayexpress