Recent Posts

Extracellular proteolytic cascade in tomato activates immune protease Rcr3 (PNAS)

The plant apoplast is a sea of immune-related proteins that facilitate robust defense against pathogens. Rcr3 is a tomato secreted apoplastic protease that contributes to both basal defense and gene-for-gene resistance against pathogens. Rcr3 is activated by the cleavage of its autoinhibitory prodomain,…

Plant-herbivore chemical communication decoded (Science)

Chemical communications between species are prevalent in nature. For instance, herbivorous insects can spot their host plants by sensing volatile organic compounds (VOCs) emitted by plants. Despite our knowledge about interactions between individual plant and herbivore species, little is known about…

Induced tolerance to abiotic and biotic stresses of broccoli and Arabidopsis after treatment with elicitor molecules (Sci. Rep.)

Plant hormones such as jasmonates (JAs) and salicylic acid (SA) are known for their role in regulating plant growth under both abiotic and biotic stresses. These hormones, which are synthesized within the plant, can modulate cellular processes in targeted cells locally and can be moved to other parts…

Review. Plant immunity: Danger perception and signaling (Cell)

Research from the last three decades has discovered many genes and pathways involved in plant immunity and how they are connected. Here, Zhou and Zhang highlight new research regarding activation and signaling of cell surface pattern recognition receptors (PRRs) and intracellular nucleotide-binding,…

Convergent loss of plant immune receptors and signaling pathways (Plant Cell)

Nucleotide-binding leucine-rich repeat receptors (NLRs) are important components of the plant immune system. They are intracellular receptors that act downstream of the cell-surface receptors, and initiate the so-called effector-triggered immunity (ETI). In most plants, the NLR gene family is large and…

Plant genes for defense against insect eggs (bioRxiv)

Plants can recognize eggs of herbivorous insects deposited on leaves and mount defense responses to avoid the future threat of herbivory. Similar to plant hypersensitive response against pathogens, plants can cause localized cell death to defend themselves against insect eggs. This response is called…

Shedding light on plant immunity: Light-regulated defense against P. infestans (PNAS)

While infection by pathogens and the reciprocal immune responses are well studied in plants, the influence of other abiotic factors on these processes is not very clear. In an attempt to understand the role of light on plant defense, Gao and colleagues have shown that the AVRvnt1 effector protein secreted…

Horizontal gene transfer of Fhb7 from fungus underlies Fusarium head blight resistance in wheat (Science)

Mycotoxins are fungal toxins with harmful health effects on humans and other animals. Fusarium head blight is a fungal disease of wheat inflorescences that can contaminate the grain and harm its consumers. Previously, Fhb7 was identified in the wheat relative Thinopyrum elongatum as a quantitative trait…

Review: Devastating intimacy: the cell biology of plant–Phytophthora interactions (New Phytol)

Phytophthora are plant-destroying oomycetes. Within this genus are several infamous disease-causing agents: P. infestans of the potato late-blight fame, P. sojae of soybean root rot, P. ramorum of sudden oak death, and many other lesser-known species. This fine new review by Boevink et al. explores the…