Altering Specificity and Autoactivity of Plant Immune Receptors Sr33 and Sr50 Via a Rational Engineering Approach.

Many resistance genes deployed against pathogens in crops are intracellular nucleotide-binding (NB) leucine-rich repeat (LRR) receptors (NLRs). The ability to rationally engineer the specificity of NLRs will be crucial in the response to newly emerging crop diseases. Successful attempts to modify NLR recognition have been limited to untargeted approaches or depended on previously available structural information or knowledge of pathogen-effector targets.

Forging a path toward a more sustainable laboratory.

Scientific discovery has advanced human society in countless ways, but research requires the expenditure of energy and resources. This Scientific Life article details one laboratory's efforts to reduce the environmental impact of wet-lab research and provides a series of resources to improve lab sustainability.

Evolution of Plant NLRs: From Natural History to Precise Modifications.

Nucleotide-binding leucine-rich repeat receptors (NLRs) monitor the plant intracellular environment for signs of pathogen infection. Several mechanisms of NLR-mediated immunity arose independently across multiple species. These include the functional specialization of NLRs into sensors and helpers, the independent emergence of direct and indirect recognition within NLR subfamilies, the regulation of NLRs by small RNAs, and the formation of NLR networks.

Comparative analysis of MAMP-induced calcium influx in Arabidopsis seedlings and protoplasts.

Rapid transient elevation of cytoplasmic calcium (Ca(2+)) levels in plant cells is an early signaling event triggered by many environmental cues including abiotic and biotic stresses. Cellular Ca(2+) levels and their alterations can be monitored by genetically encoded reporter systems such as the bioluminescent protein, aequorin. Employment of proteinaceous Ca(2+) sensors is usually performed in transgenic lines that constitutively express the reporter construct.