ScienceDaily Botany News
Botany news. Read about the latest research on experimental crops, dramatic changes in forest growth, ancient flowering plants and more.
Updated: 7 hours 21 min ago
Researchers have found adenosine triphosphate receptor in plants and believe it to be a vital component in the way plants respond to dangers, including pests, environmental changes and plant wounds. This discovery could lead to herbicides, fertilizers and insect repellants that naturally work with plants to make them stronger.
In a finding that overturns the conventional view that large old trees are unproductive, scientists have determined that for most species, the biggest trees increase their growth rates and sequester more carbon as they age. An international research group reports that 97 percent of 403 tropical and temperate species grow more quickly the older they get.
The presence of mutualistic ants greatly reduces bacterial abundance on surfaces of acacia leaves and has a visibly positive effect on plant health. Study results indicate that symbiotic bacteria colonizing the ants inhibit pathogen growth on the leaves.
The gene that has provided spring barley with resistance to powdery mildew for over 30 years increases susceptibility to newly-important disease Ramularia leaf spot. Resistance to both can be achieved.
Many woodland plants rely on ants to disperse their seeds; such seed dispersal increases the plant population's chance of survival. New research has recently demonstrated that ant-dispersed plants (myrmecochores) compete for ant dispersers by staggering seed release.
When it comes to biofuels, corn leads the all-important category of biomass yield. However, focusing solely on yield comes at a high price. Researchers now show that looking at the big picture allows other biofuel crops, such as native perennial grasses, to score higher as viable alternatives.
Scientists have discovered a natural mechanism in plants that could stimulate their growth even under stress and potentially lead to better crop yields.
Climate-change studies show leaf-out times of trees and shrubs at Walden Pond are an average of 18 days earlier than when Henry David Thoreau made his observations there in the 1850s.
Today in Australia they call it Kauri, in Asia they call it Dammar, and in South America it does not exist at all unless planted there. But 52 million years ago the giant coniferous evergreen tree known to botanists as Agathis thrived in the Patagonian region of Argentina, according to an international team of paleobotanists, who have found numerous fossilized remains there.
Scientists have developed a new method to obtain large, phylogenomic data sets utilizing long-range PCR to strategically generate DNA templates for next-generation sequencing. The method allows researchers to target specific genomic regions of interest. The method was tested by amplifying chloroplast genomes for 30 species across flowering plants, but can be used for any organism, and can be expanded to the mitochondrial and nuclear regions.
After a huge earthquake caused severe damage to the Fukushima 1 Nuclear Power Plant in 2011, Japanese plant scientists have been working to determine the impact of radioactive contamination on wild and cultivated plants. Experts have examined the potential adverse effects of radioactivity on nature and society.
To safely use bacteria in biotechnology and agriculture, where bacteria can help to fertilize plants, understanding the differences between harmful and healthy bacterial strains is vital. One member of a family of bacteria called Burkholderiaceae is known as a potential bioterrorist agent and not used in agriculture. Can the microbial good and evil be told apart? Yes, biologists report.
Light-gathering macromolecules in plant cells transfer energy by taking advantage of molecular vibrations whose physical descriptions have no equivalents in classical physics, according to the first unambiguous theoretical evidence of quantum effects in photosynthesis.
Swiss plants, butterflies and birds have moved 8 to 42 meters uphill between 2003 and 2010, scientists report. Climate warming is changing the distribution of plants and animals worldwide. Recently it was shown that in the past two decades, European bird and butterfly communities have moved on average 37 and 114 kilometers to the north, respectively.
Soil contains more carbon than air and plants combined. This means that even a minor change in soil carbon could have major implications for the Earth's atmosphere and climate. New research points to an unexpected driver of soil carbon content: fungi.
Microscopic fungi that live in plants' roots play a major role in the storage and release of carbon from the soil into the atmosphere, according to new research. The role of these fungi is currently unaccounted for in global climate models.
Researchers have developed a simple, effective and relatively inexpensive technique for removing lignin from the plant material used to make biofuels, which may drive down the cost of biofuel production.
Understanding forest biodiversity and how carbon dioxide is stored within trees is an important area of ecological research. The bigger the tree, the more carbon it stores and a study explores global variance in tree height, identifying temperature as the most important factor behind the tallest species.
Long-term changes to forests affect biodiversity and how future fires burn. A team of scientists found dramatic differences in forests today compared to historic conditions prior to logging and fire suppression.
A 100-million-year old piece of amber has been discovered which reveals the oldest evidence of sexual reproduction in a flowering plant -- a cluster of 18 tiny flowers from the Cretaceous Period -- with one of them in the process of making some new seeds for the next generation.