News articles tagged with 'pollen'
Fossil is best look yet at an ancestor of buttercups
— 1 Apr 2011 15:54 | Geology and palaeontologyScientists from the United States and China have discovered the first intact fossil of a mature eudicot, a type of flowering plant whose membership includes buttercups, apple trees,…
Pollen also appears outside flowering season
— 19 Mar 2011 14:59 | Biology'There is of course a very close relationship between the moment at which pollen is released by plants and the data gathered by the traps used to measure these grains, but this is not…
Orchid wears the scent of death
— 14 Mar 2011 19:57 | BiologySex and violence, or at least death, are the key to reproduction for the orchid Satyrium pumilum. Research led by Timotheues van der Niet at the University of KwaZulu-Natal shows that…
UF Pine Island pollen study leads to revision of state's ancient geography
— 3 Mar 2011 13:02 | Geology and palaeontologyA new University of Florida study of 45-million-year-old pollen from Pine Island west of Fort Myers has led to a new understanding of the state's geologic history, showing Florida could…
Pheromone increases foraging honey bees, leads to healthier hives
— 12 Feb 2011 20:01 | BiologyThe application of a naturally occurring pheromone to honey bee test colonies increases colony growth resulting in stronger hives overall, according to a new study conducted by scientists…
Biologists discover 'control centre' for sperm production
— 2 Feb 2011 16:16 | BiologyBiologists at the University of Leicester have published results of a new study into the intricacies of sex in flowering plants…
Secret life of bees now a little less secret
— 1 Feb 2011 19:21 | BiologyMany plants produce toxic chemicals to protect themselves against plant-eating animals, and many flowering plants have evolved flower structures that prevent pollinators such as bees…
Wealth of orchid varieties is down to busy bees and helpful fungi, says study
— 31 Jan 2011 16:31 | BiologyScientists have discovered why orchids are one of the most successful groups of flowering plants - it is all down to their relationships with the bees that pollinate them and the fungi…
The production of plant pollen is regulated by several signalling pathways
— 26 Jan 2011 18:43 | BiologyPlants producing flower pollen must not leave anything to chance. The model plant thale cress (Arabidopsis), for instance, uses three signalling pathways in concert with partially overlapping…
Gatekeeper for tomato pollination identified
— 4 Jan 2011 20:38 | BiologyTomato plants use similar biochemical mechanisms to reject pollen from their own flowers as well as pollen from foreign but related plant species, thus guarding against both inbreeding…