Chitin vs gelatin effect in the rhizosphere of cucumber
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PROVIDER: PRJEB66731 | ENA |
REPOSITORIES: ENA
Similar Datasets
Project description:Chitin oligomers, released from fungal cell walls by endochitinase, induce defense and related cellular responses in many plants. However, little is known about chitin responses in the model plant Arabidopsis. We describe here a large scale characterization of gene expression patterns in Arabidopsis in response to chitin treatment using an Arabidopsis microarray consisting of 2,375 EST clones representing putative defense-related and regulatory genes. Transcript levels for 71 ESTs, representing 61 genes, were altered >3-fold in chitin-treated seedlings relative to control seedlings. A number of transcripts exhibited altered accumulation as early as 10 min after exposure to chitin, representing some of the earliest changes in gene expression observed in chitin-treated plants. Included among the 61 genes are those that have been reported to be elicited by various pathogen-related stimuli in other plants. Additional genes, including genes of unknown function, were also identified broadening our understanding of chitin-elicited responses. Among transcripts with enhanced accumulation, one cluster was enriched in genes with both the W-box promoter element and a novel regulatory element. In addition, a number of transcripts had decreased abundance, encoding several proteins involved in cell wall strengthening and wall deposition. The chalcone synthase promoter element was identified in the upstream regions of these genes, suggesting that pathogen signals may suppress expression of some genes. These data indicate that Arabidopsis will be an excellent model to elucidate mechanisms of chitin elicitation in plant defense. Groups of assays that are related as part of a time series. Keywords: time_series_design
2005-09-09 | GSE3273 | GEO
Project description:Chitin oligomers, released from fungal cell walls by endochitinase, induce defense and related cellular responses in many plants. However, little is known about chitin responses in the model plant Arabidopsis. We describe here a large scale characterization of gene expression patterns in Arabidopsis in response to chitin treatment using an Arabidopsis microarray consisting of 2,375 EST clones representing putative defense-related and regulatory genes. Transcript levels for 71 ESTs, representing 61 genes, were altered >3-fold in chitin-treated seedlings relative to control seedlings. A number of transcripts exhibited altered accumulation as early as 10 min after exposure to chitin, representing some of the earliest changes in gene expression observed in chitin-treated plants. Included among the 61 genes are those that have been reported to be elicited by various pathogen-related stimuli in other plants. Additional genes, including genes of unknown function, were also identified broadening our understanding of chitin-elicited responses. Among transcripts with enhanced accumulation, one cluster was enriched in genes with both the W-box promoter element and a novel regulatory element. In addition, a number of transcripts had decreased abundance, encoding several proteins involved in cell wall strengthening and wall deposition. The chalcone synthase promoter element was identified in the upstream regions of these genes, suggesting that pathogen signals may suppress expression of some genes. These data indicate that Arabidopsis will be an excellent model to elucidate mechanisms of chitin elicitation in plant defense. Groups of assays that are related as part of a time series. Keywords: time_series_design Computed
2005-09-09 | E-GEOD-3273 | biostudies-arrayexpress
Project description:Chitin is a major component of fungal cell walls and serves as a molecular pattern for the recognition of potential pathogens in the innate immune systems of both plants and animals. In plants, chitin oligosaccharides have been known to induce various defense responses in a wide range of plant cells including both monocots and dicots. We identified chitine oligosaccharide-responsive genes in suspension-cultured rice cells 1-12 h after treatment using rice 44k microarray.
2012-07-25 | GSE39633 | GEO
Project description:The influence of chitin addition on the lettuce rhizosphere microbiome
| PRJEB15448 | ENA
Project description:Chitin is a major component of fungal cell walls and serves as a molecular pattern for the recognition of potential pathogens in the innate immune systems of both plants and animals. In plants, chitin oligosaccharides have been known to induce various defense responses in a wide range of plant cells including both monocots and dicots. We identified chitine oligosaccharide-responsive genes in suspension-cultured rice cells 6 and 24 h after treatment using rice 44k microarray.
2014-04-01 | GSE53414 | GEO
Project description:Chitin oligomers, released from fungal cell walls by endochitinase, induce defense and related cellular responses in many plants. However, little is known about chitin responses in the model plant Arabidopsis. We describe here a large scale characterization of gene expression patterns in Arabidopsis in response to chitin treatment using an Arabidopsis microarray consisting of 2,375 EST clones representing putative defense-related and regulatory genes. Transcript levels for 71 ESTs, representing 61 genes, were altered >3-fold in chitin-treated seedlings relative to control seedlings. A number of transcripts exhibited altered accumulation as early as 10 min after exposure to chitin, representing some of the earliest changes in gene expression observed in chitin-treated plants. Included among the 61 genes are those that have been reported to be elicited by various pathogen-related stimuli in other plants. Additional genes, including genes of unknown function, were also identified broadening our understanding of chitin-elicited responses. Among transcripts with enhanced accumulation, one cluster was enriched in genes with both the W-box promoter element and a novel regulatory element. In addition, a number of transcripts had decreased abundance, encoding several proteins involved in cell wall strengthening and wall deposition. The chalcone synthase promoter element was identified in the upstream regions of these genes, suggesting that pathogen signals may suppress expression of some genes. These data indicate that Arabidopsis will be an excellent model to elucidate mechanisms of chitin elicitation in plant defense.
2005-09-02 | E-SMDB-1627 | biostudies-arrayexpress
Project description:Cucumber rhizosphere soil Raw sequence reads
| PRJNA561474 | ENA
Project description:Chitin is a major component of fungal cell walls and serves as a molecular pattern for the recognition of potential pathogens in the innate immune systems of both plants and animals. In plants, chitin oligosaccharides have been known to induce various defense responses in a wide range of plant cells including both monocots and dicots. We identified chitine oligosaccharide-responsive genes in suspension-cultured rice cells 1-12 h after treatment using rice 44k microarray. Expression profiling in rice cells treated with chitin oligosaccharide for 1, 2, 4, 6, 8 and 12 h was compared with that in untreated control using two-color method with two biological replicates.
2012-07-24 | E-GEOD-39633 | biostudies-arrayexpress
Project description:A LysM Receptor-like Kinase Mediates Chitin Perception and Fungal Resistance in Arabidopsis Jinrong Wan,1 Xuecheng Zhang,1 David Neece,2 Katrina M. Ramonell,3 Steve Clough,2,4 Sung-yong Kim,1 Minviluz Stacey,1 and Gary Stacey1* 1Division of Plant Sciences, National Center for Soybean Biotechnology, C.S. Bond Life Sciences Center, University of Missouri-Columbia, Columbia, MO 65211, USA 2Department of Crop Sciences, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA 3Department of Biological Sciences, University of Alabama, Tuscaloosa, AL 35487, USA 4US Department of Agriculture, Soybean/Maize Germplasm, Pathology and Genetics Research, Urbana, IL 61801, USA *To whom correspondence should be addressed. E-mail: staceyg@missouri.edu Abstract: Chitin, a polymer of N-acetyl-D-glucosamine, is found in fungal cell walls, but not in plants. Plant cells are capable of perceiving chitin fragments (chitooligosaccharides) to trigger various defense responses. We identified a LysM receptor-like protein (AtLysM RLK1) that is required for the perception of chitooligosaccharides in Arabidopsis. Mutation of this gene blocked the induction of almost all chitooligosaccharide-responsive genes (CRGs) and led to more susceptibility to fungal pathogens, but not to a bacterial pathogen. In addition, exogenously applied chitooligosaccharides enhanced resistance against both fungal and bacterial pathogens in the wild-type plants, but not in the mutant. Together, our data strongly suggest AtLysM RLK1 is the chitin receptor or a key part of the receptor complex and chitin is a PAMP (pathogen-associated molecular pattern) in fungi recognized by the receptor leading to the induction of plant innate immunity against fungal pathogens. Since LysM RLKs were also recently shown to be critical for the perception of the rhizobial lipo-chitin Nod signals, our data suggest that LysM RLKs not just recognize friendly symbiotic rhizobia (via their lipo-chitin Nod signals), but also hostile fungal pathogens (via their cell wall chitin). These data suggest a possible evolutionary relationship between the perception mechanisms of Nod signals and chitin by plants. Keywords: chitooctaose, chitin receptor mutant
2008-03-27 | GSE8319 | GEO
Project description:Corynespora leaf spot (CSL), caused by Corynespora cassiicola, has become one of the most important foliar diseases of cultivated cucumber. However, the defense mechanisms of cucumber plants in response to C. cassiicola are still poorly understood. Here, proteins from resistant plants were analyzed using isobaric tags for relative and absolute quantification (iTRAQ). A total of 286 differentially expressed proteins were identified (P<0.05, ratio>1.2 or <0.83) at 6 and 24 h after pathogen inoculation in the resistant cucumber cultivar Jinyou 38. Some of the early responses to C. cassiicola infection were revealed, and four vital clues regarding the resistance of Cucumis sativus to cucumber CLS were discovered. First, the proteomic approach revealed the modulation of signaling pathways in resistant cucumber plants in response to C. cassiicola infection. Second, the plant immune system recognizes the pathogen and initiates the expression of basal immune response proteins, including those related to defense and stress responses, signal transduction, cell metabolism and redox regulation. Third, the common stress pathways were activated by C. cassiicola; in particular, mildew resistance locus O (MLO) proteins played a crucial role in the prevention of CLS. Fourth, the rapid activation of the carbohydrate and secondary metabolic pathways, the modification and reinforcement of cell walls, and the adjustment of the apoplectic environment to high-stress conditions were crucial in cucumber resistance to CLS disease. Overall, our data increase the knowledge of incompatible interactions between plants and pathogens and provide new insight into the contribution of molecular processes in cucumber to disease resistance.
2019-09-26 | PXD012903 | Pride