AI Article Synopsis
- Rice sheath blight (RSB) is a major threat to global rice crops, with many of its pathogenic proteins still not well understood.
- This study focused on four RSB-resistant chloroplast proteins, identifying five secreted proteins from a yeast library that interact with those proteins and provoke cell death in rice protoplasts.
- The analysis suggests these interacting proteins may target chloroplasts and carry structures linked to their ability to cause disease, paving the way for better understanding RSB mechanisms.
Article Abstract
Rice sheath blight (RSB), caused by, is a major economic threat to global rice crops. The genome of contains over 103 potential effectors, with most functions still unknown. Previous studies show that chloroplast plays a crucial role in RSB resistance. However, whether effectors target plant chloroplasts to promote the pathogen infection remains unclear. This study leveraged four RSB-resistant chloroplast proteins to identify five interacting secreted proteins from a 430-protein yeast library. These proteins, which localize to rice chloroplasts, were shown to cause cell death in and rice protoplasts, suggesting that they potentially influence host cellular processes by targeting chloroplasts. Bioinformatic analysis indicates that these five putative effectors almost all contained conserved structures related to pathogenicity. This study provides a novel method for screening specific functional effectors and facilitates the further study of the pathogenic mechanisms of .
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| http://dx.doi.org/10.1021/acs.jafc.4c07329 | DOI Listing |
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