Project description:Iodine treatments specifically regulated the expression of several genes in shoot and root tissues, mostly involved in the plant defence response, suggesting the protective role of iodine against both biotic and abiotic stresses.
Project description:The aim of this project is to deeply map the proteome of mitochondria from the model plant Arabidopsis thaliana. For this purpose, mitochondria were isolated from Arabidopsis cell cultures, their proteins extracted and processed using SP3 digestion. To achieve high sequence coverage, the proteins were digested with a total of six different proteases and measured using sensitive timsTOF Pro hardware and TIMS fractionation.
Project description:Innate immune responses of plant cells confer the first line of defence against pathogens. Signals generated by activated receptors are integrated inside the cell and converge on transcriptional programmes in the nucleus. In Arabidopsis, the CAMTA family of transcription factors plays a pivotal function in immunity. CAMTA binding motifs are highly enriched in the genes quickly induced during ETI and PTI. Using RNA-seq, we investigated the role of CAMTA TFs during the early ETI and PTI transcriptional responses.
Project description:To explore the role and target of chloroplast proteases under heat stress, thylakoid membranes were isolated from wild-type and mutant chloroplast thylakoid membrane-localized proteases after heat stress and subjected to comparative quantification by LC-MS/MS analysis using the spectral counting method.
Project description:Plants have developed a complicated resistance system, and they exhibit various defense patterns in response to different attackers. However, the determine factors of plant defense patterns are still not clear. Here, we hypothesized that damage patterns of plant attackers play an important role in determining the plant defense patterns. To test this hypothesis, we selected leafminer, which has a special feeding pattern more similar to pathogen damage than chewing insects, as our model insect, and Arabidopsis thaliana as the response plants. The local and systemic responses of Arabidopsis thaliana to leafminer feeding were investigated using the Affymetrix ATH1 genome array.
Project description:We found that amino acid transporter LHT1 was required for negatively regulating plant defence responses in addition to its physiological role in development and growth. In order to identify which defense pathways were involved in this process, we compared the expression profiles between wild type and lht1 mutant leaves without or with infection by Pseudomonas syringae pv. tomato DC3000 (Pst). In the lht1 mutant, except the changes in nitrogen metabolism-, cellular redox-, and photorespiration-associated gene expressions, the most drastic upregulations were found in the salicylic acid pathway-associated defense genes.
