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Tag: "flowers" at biology news

UF researchers develop ways to keep the bloom on the rose

...searchers has figured out how to at least make the flowers go the distance. A UF environmental horticulturis...st techniques so consumers see a difference in the flowers they purchase ?not only on Valentine's Day but throughout the year. "Our research has shown that ke...

The evolution of food plants: Genetic control of grass flower architecture

... (male pollen-bearing flowers) and the ear (female flowers and site of seed or kernel development). The tassel forms from the shoot apical meristem after the production of a defined number of leaves, whereas ears form at the tips of compact axillary branches. Normal maize ears are unbranched, and tassels hav...

Bees solve complex colour puzzles

...phthalmology trained bumblebees to find artificial flowers of a particular colour using a nectar reward. They then tested the bees' ability to find the same flowers in scenes that were simultaneously illuminated by four differently coloured lights - UV-yellow, blue...

From one cell, many possible cures

...he stems on a tree that can produce new leaves and flowers each year." Each stem cell has the ability to divide so as to produce a perfect copy of itself; the copy then can become a "workhorse" cell, such as a bone or nerve cell. Because the stem cell produced by this division is a perfect copy of the origin...

Delaware scientists make significant advance in study of small RNAs

...bout 2.2 million small RNAs from the seedlings and flowers of the plant and identified more than 75,000 different small RNA sequences. "Not only does MPSS provide very deep coverage of small RNAs, but it also provides quantitative information," Green said, adding that "this allowed many highly regulated sma...

UCR biochemist goes to Washington with high-protein corn

...ie explained. Initially the ear produces a pair of flowers for every kernel. But then one of the sister flowers undergoes abortion, resulting in one flower for each kernel. Gallie's research group has developed t...

Bumblebees copy one another when contending with unfamiliar flowers

... bumblebees, a vital floral pollinator, select the flowers from which they collect nectar. When faced with unfamiliar plants, foraging bees do not choose flowers entirely alone but instead copy the choices of other bees. The new findings suggest that bees adjust...

$6.5 Million Grant for Microarray Center at Yale School of Medicine

...o have fewer branches, shorter branches, and fewer flowers whereas plants with less ramosa1 activity (e.g. sorghum, rice, and the ramosa corn variety described above) tend to have more branches, longer branches, and more flowers. "We also looked at a popular ornamental grass that grows outside my office and...

The genetic origins of corn on the cob

...o have fewer branches, shorter branches, and fewer flowers whereas plants with less ramosa1 activity (e.g. sorghum, rice, and the ramosa corn variety described above) tend to have more branches, longer branches, and more flowers. "We also looked at a popular ornamental grass that grows outside my office and...

At long last, scientists figure out how plants grow

...the hormones that cause roots to grow downward and flowers to track the moving sun. Auxins also stop the growth of lateral branches. Since auxins are produced in shoot tips, lopping off the tip can cause numerous side shoots to appear, giving a plant a denser, more sculpted look. Auxin also promotes fruit d...

The evolutionary triumph of flower power

...lowering plants in an evolutionary context. While flowers originally came on the scene to attract potential ...ariety of shapes and colors we see in domesticated flowers today. McGuire suggests that nature's prettier flowers got to survive and thrive because people didn...

Defenseless plants arm themselves with metals

...ants Salt studies - a group of small, weedy alpine flowers called Thlaspi - lack the standard pathogen defense mechanism found in nearly every other plant species. Thlaspi plants live in soils naturally enriched in nickel, and when growing in their natural habitat, are not any more susceptible to pathogens t...

Transgenic plants remove more selenium from polluted soil than wild plants, new tests show

...kers swept through the fields to literally nip any flowers in the bud, and that netting and buried chicken wire were used to keep wildlife away from the plants. "One of the challenges in developing transgenic plants for remediation is engineering them in such a way that the risk of gene transfer is reduced ...

Plants defy Mendel's inheritance laws, may prompt textbook changes

...es didn't always apply was the discovery of normal flowers on some offspring of mutant plants. In the deformed parents, the flowers were fused into tight balls. But in the grandparents and 10 percent of the grandchildren, the buds b...

Amino acids in nectar enhance butterfly fecundity: A long awaited link

The fascinating interactions between flowers and their pollinators have resulted in a spectacul... years ago, researchers discovered that nectars of flowers pollinated by butterflies contain substantial amounts of amino acids. Recent experiments have shown ...

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