Researchers ID chlorophyll-regulating gene
...of soil, taking anywhere from two to seven days to germinate and break through the soil surface. "We found that mutated plants had twice the levels of protochlorophyll than normal, wild-type plants, suggesting that phytochrome acts as a negative regulator for protochlorophyll," said lead author Enamul Hu...Genetic barrier to self-pollination identified
...f the two S-alleles in the pistil, the pollen will germinate on the surface of the pistil to produce pollen tubes, which will then grow through the pistil to the ovary to effect fertilization. However, if the S-allele of the pollen matches either of the two S-alleles in the pistil, growth of the pollen tube is...Newly cloned gene key to global adaptation of wheat
... the year. On the contrary, winter wheat varieties germinate and go through early growth stages in the fall but wait until the very cold winter weather passes before flowering in spring. "During the 10,000 years of domestication of wheat, different mutations occurred in these two genes," said Professor Jo...Anthrax spores can germinate, grow and reproduce in soil
...st scientists believe B. anthracis spores will not germinate and grow unless they are inside a living host. Dur...d the soil samples to see whether the spores would germinate and grow. "The spores germinated and continued to replicate until they ran out of nutrients in the s...Scientists discover how anthrax creates its deadly spores
...d and other harsh conditions fordecades, yet still germinate almost instantly to infect and kill onceinside an animal or human host. In a collaboration funded by the U.S. Office of Naval Research and theNational Institutes of Health, scientists from three major researchinstitutions - the University of Michig...Plant sex protein identified at UC Riverside
...ollen grains land on the flower. The pollen grains germinate on the stigma to form pollen tubes, which carry sperm cells, then pass through the female tissues starting from the stigma, ending up in the ovary, which contain ovules that contain eggs. "You would be surprised to know that we don't even know the ...Squirrel invasion sows seeds of change for future forests
...Mexico, predicted that seven times as many walnuts germinate when gathered by gray squirrels compared to those ...his ensures that some nuts remain in the ground to germinate the following spring. "Scatter hoarding by gray squirrels is important to the germination success of...Deer help disperse seeds--including noxious weeds
...d depositing seeds, in their pellet-like feces, to germinate and produce new plants up to two miles away. "The good news is that deer might facilitate the spread of native plants to habitats recovering from disturbance, where the seeds otherwise wouldn't be able to reach," says Vellend, a Cornell graduate stud...Sixty-day antibiotic treatment not enough to prevent anthrax in some cases
...expel these spores. A single spore left behind can germinate to cause disease," explained Ron Brookmeyer, PhD, lead author of the study and professor of biostatistics at the School of Public Health. "The model we developed shows that larger exposures to anthrax spores take longer to expel and require longer an...Alien earthworms changing ecology of Northeast forests
... eat away the duff layer, all the plant seeds that germinate there, like trillium and mayflowers and wood anemone, may disappear or may not have any place to germinate. Other creatures that live in the duff and forest litter like salamanders and ground-nesting birds may be affected as well. Within a decade or...Pathogenic yeasts and fungi: A growing health concern
...nters the respiratory tract, the spore-like yeasts germinate and become an elongated, filamentous row of cells. Like other yeasts, they multiply through cell division, or grow as filaments. It is this filamentation that enables Candida's cell walls to bind to the respiratory tract. "This ability to exist in tw...UC Riverside scientists contribute to study that unveils genome sequence of bread mold
... sexual spores are well-known for their ability to germinate after a forest fire; the resulting colony then utilizes the burnt plant matter as a food source. For this reason, Neurospora can be seen growing in burnt sugar cane fields in hot and humid regions of the world. Borkovich was involved in the geno...Discovery of size changes of Bacillus spores may lead to simpler, faster anthrax detector
...lling, spores may be priming themselves to quickly germinate when food becomes available. More research needs to be done before the technique can be adapted to detection and identification of species of Bacillus spores, Price emphasized. He and Westphal are planning to study the size of spores grown under diff...Young plant's natural defenses amount to more than just its seed
...ntage goes to waste because some seeds prematurely germinate and begin to grow - a costly loss for poor, developing countries. Because the Rockefeller scientists now know the identity of the molecular wardens in charge of this developmental delay, it may be possible to genetically control when plants initiate ...Colorado U. to fly hardware, experiments on space shuttle, space station
...er of the mustard family. The researchers plan to germinate and grow one batch of 30 plants, which takes 25 days to mature. It will then be harvested by NASA astronaut Peggy Whitson. Whitson will plant and tend a second crop of 30 Bioserve plants for the last 25 days of the space station stay. In 2003, the...Compound from yeast shows promise in protecting against anthrax
... the bacterial spores before they have a chance to germinate and spawn the deadly toxins that can quickly overwhelm a less-protected immune system, the researcher explained. Studies are planned to determine the level of immune system protection that glucan offers specifically against anthrax spores, Ostroff s...Anthrax spores use failsafe protection system, say U-M scientists
...ades. Once inside a living host, however, they can germinate and begin infecting cells in as little as ten minutes. Scientists know very little about what triggers an anthrax spore to break dormancy. Identifying the biochemical signals that start the process is an important first step to preventing anthrax in...Fragmentation can make seedlings wimpy
..., seeds from isolated treeswere 15% less likely to germinate (58% vs. 75%) and the leaves of thosethat did sprout were 10% smaller (about 9 vs. 10 square inches). Fragmentation also decreased genetic diversity: in isolated trees, seedsfrom different fruits of the same tree were four times more likely tohave th......ned; a natural cycle that prompted native trees to germinate and native birds and fish to breed. The erection of locks and weirs ended that cycle, and the river is now a series of ponds. Only a fraction of its normal flow remains, its mouth has all but closed, and many of its wetlands are now dustbowls. Some, ...... Once inside the macrophages, the spores germinate producing bacterial cells that multiply until their numbers literally burst the cells, spreading infection. The bacterial cells produce and release toxin components that specifically attack ...