Unknown,Transcriptomics,Genomics,Proteomics

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DNA-damaging agent and immune inducer synergistically induced defence gene expression in Arabidopsis


ABSTRACT: We used microarrays to identify differentially expressed genes after DNA-damaging agent bleomycin (BLM) and/or immune inducer 2, 6-dichloroisonicotinic acid (INA) treatment. We focused on those genes that were synergistically induced by co-treatment (BLM+INA). Arabidopsis seedlings were treated with 4 μg/ml BLM and/or low INA (10 μM). There are 4 treatments: control (CK), INA, BLM and BLM+INA. Each treatments have three biological replicates. There are 12 samples in total.

ORGANISM(S): Arabidopsis thaliana

SUBMITTER: Shunping Yan 

PROVIDER: E-GEOD-44793 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Publications

Salicylic acid activates DNA damage responses to potentiate plant immunity.

Yan Shunping S   Wang Wei W   Marqués Jorge J   Mohan Rajinikanth R   Saleh Abdelaty A   Durrant Wendy E WE   Song Junqi J   Dong Xinnian X  

Molecular cell 20131024 4


DNA damage is normally detrimental to living organisms. Here we show that it can also serve as a signal to promote immune responses in plants. We found that the plant immune hormone salicylic acid (SA) can trigger DNA damage in the absence of a genotoxic agent. The DNA damage sensor proteins RAD17 and ATR are required for effective immune responses. These sensor proteins are negatively regulated by a key immune regulator, SNI1 (suppressor of npr1-1, inducible 1), which we found is a subunit of t  ...[more]

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