Plant news from around the world
Researchers have pieced together startling new evidence that shows rapid 21st century warming may spell doom for tree species in Peruvian cloud forests, with species losing 53-96 percent of their populations.
Many climate studies have predicted that tree species will respond to global warming by migrating via seed dispersal to cooler climates. But a study of 65 different species in 31 eastern states finds that nearly 80 percent of the species are staying in place and speeding up their life cycles.
Scientists have discovered where plants build tannins, complex chemicals used by plants for defence and protection. The source is the tannosome, a newly discovered organelle that is found in most land plants. All living things are made from cells; whether they are single-celled organisms like amoeba, or enormous entities like giant redwoods (in which millions of cells make up the body of the organism).
Improvement in reforestation and agriculture is possible thanks to new work. Scientists used different strains of fungi and bacteria to promote development and health in trees, which have enabled them to accelerate growth of different species up to 40 percent.
Unlikely as it may sound, giant pandas Ya Ya and Le Le in the Memphis Zoo are making contributions toward shifting production of biofuels away from corn and other food crops and toward corn cobs, stalks and other non-food plant material.
Call for Applications - 2014 Conservation Leadership Programme Awards. Deadline 11 November 2014
The International Council of Museums (ICOM) New Zealand and BGCI are organising a joint event on 25-26 October as part of ICOM New Zealand's inaugural annual conference
BGCI's U.S. office is undergoing three exciting changes we would like to share with you.
Some symbiotic bacteria living inside Colorado potato beetles can trick plants into reacting to a microbial attack rather than that of a chewing herbivore, according to a researchers who found that the beetles with bacteria were healthier and grew better.
The first study under realistic field conditions has found reassuringly low levels of chemicals from pharmaceuticals and personal care products in crops irrigated with recycled sewage water, scientists have reported.
A joint Harvard–Smithsonian study released today in the journal PLOS ONE reveals how much — and how little— Northeastern forests have changed after centuries of intensive land use.
New research shows that rising ocean temperatures will upset natural cycles of carbon dioxide, nitrogen and phosphorus. Plankton plays an important role in the ocean's carbon cycle by removing half of all CO2 from the atmosphere during photosynthesis and storing it deep under the sea. New findings reveal that water temperature has a direct impact on maintaining the delicate plankton ecosystem of our oceans.
Protecting key regions that comprise just 17 percent of Earth's land may help preserve more than two-thirds of its plant species, according to a scientists.
In 2010 the Convention on Biological Diversity (CBD) pledged to set aside 17 percent of the world's land as protected areas in addition to protecting 60 percent of the world's plant species—through the Global Strategy for Plant Conservation (GSPC)—by 2020. Now a new study in Science finds that the world can achieve both ambitious goals at the same time—if only we protect the right places. Looking at data on over 100,000 flower plants, scientists determined that protecting 17 percent of the world's land (focusing on priority plant areas) would conserve 67 percent of the world's plants.
A new study reveals how much -- and how little -- Northeastern forests have changed after centuries of intensive land use.
Coral reefs are tremendously important for ocean biodiversity. Unfortunately they have been in great decline in recent years, much of it due to the effects of global climate change. One such effect, called bleaching, occurs when the symbiotic algae that are essential for providing nutrients to the coral either lose their identifying photosynthetic pigmentation and their ability to perform photosynthesis or disappear entirely from the coral's tissue. Without a healthy population of these algae, the coral cannot survive.
Brown algae contain phlorotannins, aromatic (phenolic) compounds that are unique in the plant kingdom. As natural antioxidants, phlorotannins are of great interest for the treatment and prevention of cancer and inflammatory, cardiovascular and neurodegenerative diseases. Researchers have recently elucidated the key step in the production of these compounds in Ectocarpus siliculosus, a small brown alga model species. The study also revealed the specific mechanism of an enzyme that synthesizes phenolic compounds with commercial applications.
Scientists evaluated Rocky Mountain juniper trees for changes in year-round essential oil content and composition. They found that the concentration of essential oil in fresh leaves varied, and that oil content in the male tree was greater than that of the female tree at most sampling points.
Forests in the northeastern US have been radically transformed over the last four centuries by human activity, and their relationship with climate factors like rainfall weakened.
When it comes to public access, the tree of life has holes. A new study shows about 70 percent of published genetic sequence comparisons are not publicly accessible, leaving researchers worldwide unable to get to critical data they may need to tackle a host a problems ranging from climate change to disease control.