*The Global Plants Initiative Meets at the Smithsonian in Panama Jan. 11-13*
For centuries, jungle explorers from Europe and North America have created art of the plants they discover—pressing bright flowers and green tendrils onto herbarium sheets for prestigious museums and plant collections. But scientists in the most biodiverse countries lack easy access to this basic information needed to identify plants. The Global Plants Initiative, meeting Jan. 11-13 at the Smithsonian Tropical Research Institute in Panama, catapults biodiversity research to a new level, sharing plant collections in a massive online database of high-resolution scans. (more…)
*University of Missouri investigators’ discovery sheds light on how plants fight off bacterial infections*
Columbia, MO — Like us, plants rely on an immune system to fight off disease. Proteins that scout out malicious bacterial invaders in the cell and communicate their presence to the nucleus are important weapons in the plant’s disease resistance strategy. Researchers at the University of Missouri recently “tapped” into two proteins’ communications with the nucleus and discovered a previously unknown level of cross talk. The discovery adds important new information about how plant proteins mediate resistance to bacteria that cause disease and may ultimately lead to novel strategies for boosting a plant’s immune system.
Special proteins in the plant, called resistance proteins, can recognize highly specific features of proteins from pathogen, called effector proteins. When a pathogen is detected, a resistance protein triggers an “alarm” that communicates the danger to the cell’s nucleus. The communication between the resistance protein and nucleus occurs through a mechanism called a signaling pathway. (more…)
