Project description:Magnaporthe oryzae snodprot1 homolog (MSP1), a recently identified PAMP, is known to trigger defense responses in rice. However, the receptor(s) and downstream interacting components of MSP1 in rice have not been identified so far. Using multiple immunoprecipitation-mass spectrometry (IP-MS) analyses in transgenic rice expressing MSP1-YFP, we identified several heat shock proteins (HSPs) as MSP1 interacting partners. Heat stress treatment suppressed MSP1-induced cell death in tobacco plants transiently expressing MSP1. Subsequent IP-MS analysis on these tobacco plants, exposed to heat stress, resulted in the identification of a HSP having a highly conserved sequence to the OsHSP70 of rice. Co-expression of MSP1 with OsHSP70 failed to induce cell death in tobacco, confirming the involvement of the OsHSP70 in the MSP1 immune response. Rice protoplasts, co-expressing MSP1 and OsHSP70, showed a direct interaction between these two proteins in planta. Taken together, the results reported here highlight the pivotal role of OsHSP70 in MSP1-induced signaling and enhance our understanding of rice-M. oryzae interaction.
Project description:Comparison of the binding of GOLDEN2-LIKE (GLK) transcription factors in tomato, tobacco, Arabidopsis, maize and rice, show that genome cis-variation caused wide-spread TF binding divergence, and most of the TF binding sites are genetically redundant.
Project description:Hrip1 was isolated from Alternaria tenuissima and was found to induce systematic acquired resistance in tobacco. In rice plants, it was found to confer immunity against rice blast fungi. To understand the genomic signature of Hrip1-induced immunity, rice seedlings were treated with 30 nm Hrip1 protein and triplicate leaf samples were subjected to sequencing on the BIGSEQ500 platform. Two groups of rice seedlings were grown to the three-leaf stage. The experiment group was treated with 30nm Hrip1 protein while the control plants were treated with Tris-HCl buffer. Triplicate samples from both setups were taken at 6, 12, 24, and 48 hr after treatment. Total RNA was extracted and reverse transcribed in first strand cDNA as input material.
2022-08-21 | GSE211516 | GEO
Project description:Effects of different straw returning modes on soil microbial community in tobacco-rice rotation system
| PRJNA1160014 | ENA
Project description:Soil microbial characteristics in healthy tobacco fields with tobacco-rice rotation
Project description:Cigarette smoking is the leading cause of lung cancer worldwide. Carcinogens in smoke produced during the combustion of cigarette tobacco are responsible for airway epithelial changes underlying lung carcinogenesis. Reduction of harmful constituents by heating rather than combusting tobacco would be a sound strategy to reduce the risk for lung cancer. In this study we characterized the functional and molecular changes during long-term treatment of human bronchial epithelial cells with total particulate matter (TPM) from a new candidate modified risk tobacco product (cMRTP), the tobacco heated system 2.2 (THS2.2) in comparison with TPM from combustible 3R4F reference cigarettes.
Project description:Cigarette smoking is the leading cause of lung cancer worldwide. Carcinogens in smoke produced during the combustion of cigarette tobacco are responsible for airway epithelial changes underlying lung carcinogenesis. Reduction of harmful constituents by heating rather than combusting tobacco would be a sound strategy to reduce the risk for lung cancer. In this study we characterized the functional and molecular changes during long-term treatment of human bronchial epithelial cells with total particulate matter (TPM) from a new candidate modified risk tobacco product (cMRTP), the tobacco heated system 2.2 (THS2.2) in comparison with TPM from combustible 3R4F reference cigarettes.
Project description:Cell adaptation to high salinity levels implicates the modification of different cellular, physiological and molecular mechanisms. However, studies about the cellular mechanisms that are implicated in salt adaptation are scarce in the literature. Tobacco BY-2 cell cultures are very homogeneous and are characterized by a continuous cell grow and high proliferation rate. These features make these cells a good model system. For this study, we have obtained a stable tobacco cell line adapted to grow at 250 mM of NaCl. To obtain a general view of this process, we have followed a microarray technique. Gene expression was analyzed using the Affymetrix microarray technique. We have used a microarray designed by Edwards et al. (2010) in tobacco (Total probes: 43768).