Tag: Plant Immunity

Chromatin remodellers are highly conserved eukaryotic proteins with regulatory roles in various aspects of DNA metabolism including DNA repair, gene expression and mitosis. Here, Kang et al. examine the function of the CHROMATIN REMODELLING19 (CHR19) in Arabidopsis thaliana. Using two T-DNA insertion…

How would you feel if you developed a plant that is tolerant to a particular stress stimulus and found out that it can also tolerate another stress? Bettgenhaeuser and found that this happened when plant breeders developed barley varieties resistant to the powdery mildew disease (caused by the fungal…

Much of our understanding of plant immunity comes from studies of pathogens that infect mesophyll tissues, (e.g., Pseudomonas syringae). However, there are many pathogens that specifically invade vascular tissues (e.g., Xanthomonas oryzae pv. oryzae; Xoo), which causes rice bacterial blight. In a recent…

I remember when I joined my PhD lab, the first article I was recommanded was a review by Jones and Dangl (2006) titled “The plant immune system”. Even today it remains the first article given to newbies in the lab. But the field has progressed way ahead in the more than fifteen years since that article…

Tran et al. found that outer membrane vesicles produced by plant pathogenic bacterium could trigger plant immune responses through the interactions with the plant plasma membrane. Plant Cell. https://doi.org/10.1093/plcell/koab276 By Tuan Minh Tran 1,2 and Yansong Miao 1 School of Biological…

In plants, immune signalling and the corresponding defence responses are initiated by direct or indirect recognition of pathogen molecules via immune receptors. In the plasma membrane, pattern-recognition-receptors (PRRs) recognize signs of invasion and pattern-triggered immunity (PTI) is initiated.…

Plants have evolved signaling cascades to survive biotic and abiotic stresses, and recent studies have shown that there is crosstalk between many of these pathways.  In a recent study, Dindas et al. developed a micro-electrode-based system to detect active inorganic phosphate (Pi) transport in Arabidopsis…

In Arabidopsis, NONEXPRESSOR OF PR GENES 1 (NPR1) plays an important role in the antagonistic crosstalk of salicylic acid (SA) and jasmonic acid (JA) signalling. It activates SA-induced genes that protect against biotrophic pathogens and suppresses JA-induced genes that protect against necrotrophic pathogens.…