ScienceDaily: Top Environment News |
- New key mechanism in cell division discovered
- Hitting snooze on the molecular clock: Rabies evolves slower in hibernating bats
- Intricate, often invisible land-sea ecological chains of life threatened with extinction around the world
- A cell's first steps: Building a model to explain how cells grow
- A crowning success for crayfish
- Pollination with precision: How flowers do it
| New key mechanism in cell division discovered Posted: 18 May 2012 10:28 AM PDT Researchers have identified the mechanism by which protein Zds1 regulates a key function in mitosis, the process that occurs immediately before cell division. The research opens the door to developing targeted and direct therapies against cancer. |
| Hitting snooze on the molecular clock: Rabies evolves slower in hibernating bats Posted: 18 May 2012 10:27 AM PDT The rate at which the rabies virus evolves in bats may depend heavily upon the ecological traits of its hosts, according to new research. Rabies viruses in tropical and sub-tropical bat species evolved nearly four times faster than viral variants in bats in temperate regions. |
| Posted: 18 May 2012 10:27 AM PDT Intricate, often invisible chains of life are threatened with extinction around the world. A new study quantifies one of the longest such chains ever documented. |
| A cell's first steps: Building a model to explain how cells grow Posted: 18 May 2012 10:26 AM PDT Physicists and biologists are addressing an important fundamental question in basic cell biology: how do living cells figure out when and where to grow? |
| A crowning success for crayfish Posted: 18 May 2012 10:24 AM PDT Australian freshwater crayfish have a tooth enamel very similar to humans. Nature sometimes copies its own particularly successful developments. Scientists have now found that the teeth of the Australian freshwater crayfish Cherax quadricarinatus are covered with an enamel amazingly similar to that of vertebrates. Both materials consist of calcium phosphate and are also very alike in terms of their microstructure. This extremely hard substance has apparently developed in freshwater crayfish independently from vertebrates, as it makes the teeth particularly strong. |
| Pollination with precision: How flowers do it Posted: 17 May 2012 10:20 AM PDT Pollination could be a chaotic disaster. With hundreds of pollen grains growing long tubes to ovules to deliver their sperm to female gametes, how can a flower ensure that exactly two fertile sperm reach every ovule? Biologists report the discovery of how plants optimize the distribution of pollen for successful reproduction. |
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