Tag: "flowering" at biology news
Dwarf mistletoe reveals its sexual secrets
...erpretation). "In all previously described flowering
plants, the formation of the egg and its accessory cells is thought to trigger a chemical signal that causes the pollen tube to find the egg and fertilize it. But with my dwarf mistletoe, the pollen tube, which contains the plant's sperm, grows down ...
Gene exchange between species is aided by parasitism
...e important mitochondrial gene atp1 from parasitic flowering
plants to weeds in the genus Plantago. Three Plantago species possess both a normal, functioning copy of atp1 and a second defective atp1 that bears a striking resemblance to the atp1 gene found in parasitic "dodders" in the plant genus Cuscuta. Evid...
Global warming's impact on US plants, animals determined from review of dozens of studies
...00 years. The report revealed that some plants are flowering
earlier in the spring than ever before and some birds breeding earlier. In addition, species from Edith's checkerspot butterflies to the red fox have been gradually moving northward or to higher elevations, where more tolerable climate conditions now...
Conversion of flower organs into leaves
..., scientists have carried out molecular studies on flowering
only during the last two decades. Numerous genes controlling flower development have been identified during this time. Many of the studies have focused on the small weed Arabidopsis thaliana, which possesses the typical set of flower organs--sepals (...
Researchers redrawing the Tree of Life
...ad the way in reclassifying the 270,000 species of flowering
plants that include all our food plants. The NSF ..., professor of biology at Virginia Tech. Formerly, flowering
plants, which are the most dominant plant on the surface of the Earth and economically the most impo...
National Science Foundation awards $2 million grant to UC Riverside
...diterranean region, and include annual grasses and flowering
plants such as stork's bill and mustard. The grasses are problematic, Allen said, because they form a fine fuel that can help carry fire during the dry season, more so than any of the state's native species. The grass invasion also kills native plant...
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