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Tag: "green" at biology news

No-mow grass may be coming to your yard soon

...ys. "We might be able to dwarf grass and keep it green by limiting brassinosteroids or increase the yield of rice by having more brassinosteroids in seeds," Chory said. Another recent study by Makoto Matsuoka's group in Japan, she said, showed that limiting brassinosteroids in rice affected leaf angle an...

Study provides first look at the 'birth' of a retina cell

...e to produce a protein that appears as fluorescent green when exposed to blue light. This fluorescent protein allows scientists to identify even a few cells that are destined to be rods at very early stages of development. "For the first time we were able to see retina cells during early development, allo...

Interfering RNA silences genes in 'slippery' immune cells

...st tested their approach by introducing a gene for green fluorescent protein into human T cells, and using siRNA to inhibit that gene's expression, and dim its fluorescent glow. They then applied their approach to HALP, a gene naturally active in T cells. Dr. Finkel previously discovered and named HALP, ...

Green tea and the 'Asian Paradox'

...unted for by high consumption of tea, particularly green tea, according to a review article published by a ...e than 100 experimental and clinical studies about green tea in writing the article. He said one theory is that the average 1.2 liters of green tea consumed...

A surprise about our body clock

...n which bone marrow cells were modified to carry a green fluorescent marker allowing researchers to easily track them. The researchers demonstrated that these bone marrow cells are quickly mobilized to the damaged heart region following a heart attack. Once in the damaged area, the cells produce chemicals ...

OHSU study says stem cell 'fusion' occurs in tumors

...c DNA, within the female donor cells marked with a green fluorescent protein. About 60 percent of the epith...r of intestinal cells for the presence of both the green fluorescent protein, indicating female donor cells, and an enzyme from the male recipient cells Won...

Healing the heart with bone marrow cells

...n which bone marrow cells were modified to carry a green fluorescent marker allowing researchers to easily track them. The researchers demonstrated that these bone marrow cells are quickly mobilized to the damaged heart region following a heart attack. Once in the damaged area, the cells produce chemicals ...

Biological motors sort molecules one by one on a chip

...nstrate this, the researchers allowed a mixture of green and red fluorescent microtubules to arrive at a Y-...le, the Delft researchers were able to collect the green and red microtubules in different reservoirs. With their approach to the nano-channels, the resea...

Dragonfly migration resembles that of birds, scientists say

... Letters, is based on datagenerated by tracking 14 green darner dragonflies with radiotransmitters weighing only 300 milligrams -- about a third as much as apaper clip. Green darners are among the 25 to 50 species of dragonfliesthought to be migratory among about 5200 species worldwide. The team of resear...

All the eggs in one basket

...since the 1970's have dramatically helped increase green and hawksbill turtle populations that nest on prot...nd colleagues mapped the historic nesting areas of green and hawksbill turtles, and used density descriptions and harvest data to categorize "major" and "min...

Science captures the essence of fruit

...arnesene, responsible for the distinctive aroma of green apples. The company has filed international patent applications on the use of the applicable gene in creating the fragrance, and for another plant gene responsible for making a compound that smells like the heady scent of red roses. Dr Newcomb s...

Movie spies on malaria parasite's sneaky behavior

...asites' journey. By using parasites labeled with a green fluorescent marker and staining the mouse's blood vessels with a red fluorescent marker, Amino was able to record microscopic images inside the animal's liver. He found that not only did the structures Heussler's group saw on the liver cells in the c...

Scientists solve sour taste proteins

...cium-sensitive fluorescent dyes -- one that glowed green when the calcium concentration was high, the other that glowed red when the concentration was low. When they added sour-tasting acids to the cells, the ion channels went from closed to open, enabling calcium ions to flow in, increasing their concent...

Ecosystem services and invasive species

...Cook Convention Center Overton park, the largest green space in Memphis, provides ecosystem services as a...n people appreciate the value of urban forests and green spaces for their recreational value, taking for granted the ecological and economic importance of th...

UC Davis researchers reveal apples' protective ways

... that flavonoids--which are found in chocolate and green tea, as well as other fruits and vegetables--behave as anti-oxidants, taking up free oxygen radicals that can damage precious DNA. The UC Davis study takes that research further by looking beyond the antioxidant effects of apple flavonoids. In the c...

Finding paves way for better treatment of autoimmune disease

..., he cautions that his research findings are not a green light for patients with autoimmune disease to drink because of the negative health effects of regular alcohol consumption. Dr. Iwashima and his colleagues believe the best way to optimize cell percentages is to do what the body does. In fact, they...

Time of day tempers tadpoles' response to predators

...in Memphis, Tenn. Fraker studied tadpoles of the green frog (Rana clamitans), which normally feed more at...day. "My interpretation of these results is that green frog tadpoles behave more conservatively in response to a predator chemical cue during the day becau...

Mussels evolve quickly to defend against invasive crabs

...he Asian shore crab Hemigrapsus sanguineus and the green crab Carcinus maenas. While Carcinus was introduced to New England from Europe between 150 and 200 years ago, Hemigrapsus is a relative newcomer, arriving from Asia to New Jersey in 1988. While previous research had established that mussels recognize...

Gold nanoparticles could improve antisense cancer drugs

...ers targeted mRNA sequences that code for enhanced green fluorescent protein (EGFP) expressed in a mouse cell. The antisense sequence of the DNA attached to the nanoparticles was complementary to the mRNA for EGFP expression. When the nanoparticles were introduced to the cells the fluorescence dimmed -- a ...

Recombination protein dynamics observed with single monomer resolution

...T, researchers first attach two dye molecules ?one green and one red ?to the molecule they want to study. Next, they excite the green dye with a laser. Some of the energy moves from the green dye to the red dye, depending upon the dis...

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