The flower-based chemical compounds that are the basis for the perfumes and colognes we use today have been providing olfactory excitement to pollinating insects and other animals since the mid-Cretaceous Period.
Xanthomonas bacteria cause diseases in tomato and pepper plants and inject harmful proteins into plant cells.
A synthetic biology company says it is developing a fragrance line that will contain smells from plants that have gone extinct in the last 200 years.
Plants usually produce their own nutrients by using sun energy, but not all of them. A new 'cheater' species of orchid from Japan, lives off nutrients obtained via a special kind of symbiosis with fungi. Mycoheterotrophy is a term derived from Greek to describe the bizarre symbiotic relationship between some plants and fungi, where the plant gets nutrients parasitizing upon fungi, rather than using photosynthesis.
Nicholas Culpeper continued to treat poor patients cheaply, earning not only great local popularity but also the bitter condemnation of the medical fraternity, whose ire knew no bounds when, in 1649, he produced an English translation of their bible, the Pharmacopoeia Londoninensis. Perhaps his lasting legacy was to demystify medicine and place help in the hands of the people themselves.
A twiner native to southern Africa, Sanderson´s parachute flower (Ceropegia sandersonii), has a particularly cunning strategy for attracting flies for pollination. Its way of ensuring pollination is a complicated ploy involving fraud and imprisonment. These types of deceptive plants that manipulate their visitors and abuse them via pollination without reward are not all that rare. Today researchers estimate that there are around 15,000 such plants.
damaged trees release hormones that help heal the wound and warn nearby trees to ramp up their own defenses.
The picture of a plant-pathogen arms race is more complex than previously thought, and in some cases we should think of viruses in a more positive way,
Researchers believe untapped consumer markets exist for ancient foods such as einkorn, emmer, and spelt, which fed large swaths of the world's population for thousands of years but disappeared almost completely during the rise of industrial farming and the green revolution.
Increases in ambient temperature also lead to a decrease in the production of floral scents. Increases in temperature associated with the changing global climate are interfering with plant-pollinator mutualism, an interaction facilitated mainly by floral color and scent.
Fruit odor may have evolved to advertise ripeness to seed-dispersing primates. The fact that a substantial change of odor is apparent only in fruits dispersed by primates indicates that it is not a byproduct of fruit maturation that characterizes all fleshy fruits, but rather a trait which is present only in fruits whose main seed disperser is likely to use the odor to identify ripe fruits.
Concerns remain chemical widely used in agriculture as a herbicide can kill all plants, algae, bacteria and fungi in a crop’s vicinity, affecting biodiversity. Previous tests have found traces of the residue in the urine of people from 18 different European countries, and in over 60% of breads sold in the UK.
Researchers have shown how plant cellulose can self-assemble into wrinkled surfaces that give rise to effects like iridescence and color change. Their findings provide a foundation to understand structural color in nature
As plant roots grow, they release hormones called strigolactones into the soil. This is a signal that normally helps fungi form a beneficial connection to the plant, in which they each trade nutrients. But the seeds of parasitic plants also possess the ability to sense strigolactones, which prompt them to germinate, attach to the host root and syphon off nutrients.
Despite hemp's surging popularity as an ingredient in food, personal care products, clothing and even construction, commercial hemp cultivation is prohibited by the U.S. federal government. Currently, all hemp products are imported to the U.S.
A team of UW biologists has identified a key mechanism plants use to decide when to release their floral scents to attract pollinators. Their findings connect the production and release of these fragrant chemicals to the innate circadian rhythms that pulse through all life on Earth.