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Scientists are studying how plants are able to set and maintain this internal clock. They have found that the sugars produced by plants are key to timekeeping.
Eucalyptus trees -- or gum trees as they are known -- are drawing up gold particles from the earth via their root system and depositing it their leaves and branches.
Searching for bountiful fruit crops in the rain forest, chimpanzees remember past feeding experiences.
Scientists have misunderstood one of the most fundamental processes in the life of plants because they have been looking at the wrong flower, according to researchers.
It has long been known that the characteristics of many plants with wide ranges can vary geographically, depending on differences in climate. But changes in grazing pressure and pollination can also affect the genetic composition of natural plant populations, according to a new study.
A California walking stick insect that has evolved to produce individuals with two distinct appearances -- an all-green form that camouflages well with broader leaves and a form with a white stripe running down its back that blends better with needle-like leaves -- can markedly affect its broader ecological community when the appearance of the bug is mismatched with the plant it's living on.
Scientists studied softwood stem cutting propagation of four underused shrub species native to the northeastern United States. The results indicated that two of these could be propagated for consideration as commercial crops for wholesale nurseries looking for new native shrubs, and that all four of the species have the potential to be viable commercial crops for nurseries that specialize in native plants.
Scientists have created a cucumber genomic variation map that includes about 3.6 million variants revealed by deep resequencing of 115 cucumbers worldwide. This work provides new insights for understanding the genetic basis of domestication and diversity of this important crop, and provides guidance for breeders to harness genetic variation for crop improvement.
Scientists have identified the key genes required for oil production and accumulation in plant leaves and other vegetative plant tissues. Enhancing expression of these genes resulted in vastly increased oil content in leaves, the most abundant sources of plant biomass -- a finding that could have important implications for increasing the energy content of plant-based foods and renewable biofuel feedstocks.
Researchers, taxonomists, and students from The Field Museum and 88 other institutions around the world have provided new answers to two simple but long-standing questions about Amazonian diversity: How many trees are there in the Amazon, and how many tree species occur there?
A new study by researchers shows that the furled leaves of Heliconia and Calathea plants where Spix’s disc-winged bats make their home actually help to amplify and transmit the social calls of the bats.
How some plant species evolved super-efficient photosynthesis had been a mystery. Now, scientists have identified what steps led to that change.
The results of a major international research project show that climate stability plays a crucial role in the distribution of plants on Earth. Rare species in the Americas are restricted to areas of California, Mexico, the Caribbean islands, parts of the Andes mountains, the south of South America, and the region around Rio de Janeiro. The flora in most of North America and the Amazon basin, however, are dominated by widespread species.
Scientists have discovered a highly distinctive and endangered new dragon tree species -- Dracaena kaweesakii. The new species grows to an impressive 12 m and has soft, sword-shaped leaves with white edges and cream flowers with bright orange filaments. Due to its extensive branching and attractive appearance this dragon tree species is often used as an ornamental plant in Thailand.
During the Ice Ages the European Alps were covered by a thick layer of ice. Climate fluctuations led to great changes in the occurrences of plants: They survived the cold periods in refugia on the periphery of the Alps which they then repopulated after the ice had drawn back. Such processes in the history of the earth can be detected by molecular analysis as genetic fingerprints: refugia and colonization routes can be identified as genetic groups within the plant species. Thus, the postglacial colonization history of alpine plants is still borne in plants alive today.
A major fungal pathogen which affects barley crops is also present on a common wild grass according to a new study.
Are our favorite garden flowers attractive to hungry visitors such as bees and butterflies to feed on?
Spraying a plant hormone on broccoli -- already one of the planet's most nutritious foods -- boosts its cancer-fighting potential, and researchers say they have new insights on how that works.
Climate change affects forests across North America -- in some cases permitting insect outbreaks, plant diseases, wildfires and other problems -- but researchers say warmer temperatures are also making many forests grow faster and some less susceptible to pests, which could boost forest health and acreage, timber harvests, carbon storage, water recycling and other forest benefits in some areas.
Researchers have developed a microfluidic water sensor within a fingertip-sized silicon chip that is a hundred times more sensitive than current devices. The researchers are now completing soil tests and will soon test their design in plants, embedding their “lab on a chip” in the stems of grape vines, for example. They hope to mass produce the sensors for as little as $5 each. The new sensor will benefit crop growers, wine grape and other fruit growers, food processors and even concrete makers.