ScienceDaily: Top Environment News

---

• Schooling fish: Wild zebrafish assess risk through social learning
• Oxygen 'sensor' may shut down DNA transcription
• Antibacterials in personal-care products linked to allergy risk in children
• Link between vitamin C and twin seedlings can increase seed production in crops

Schooling fish: Wild zebrafish assess risk through social learning Posted: 19 Jun 2012 07:38 AM PDT Scientists have investigated whether zebrafish use social learning to assess risk. They found that wild zebrafish, which are more timid than their domesticated counterparts, became emboldened after interacting with domesticated zebrafish. The opposite did not occur, however.

Oxygen 'sensor' may shut down DNA transcription Posted: 19 Jun 2012 06:29 AM PDT A key component found in an ancient anaerobic microorganism may serve as a sensor to detect potentially fatal oxygen, researchers have found. This helps researchers learn more about the function of these components, called iron-sulfur clusters, which occur in different parts of cells in all living creatures.

Antibacterials in personal-care products linked to allergy risk in children Posted: 19 Jun 2012 06:29 AM PDT Exposure to common antibacterial chemicals and preservatives found in soap, toothpaste, mouthwash and other personal-care products may make children more prone to a wide range of food and environmental allergies, according to new research.

Link between vitamin C and twin seedlings can increase seed production in crops Posted: 18 Jun 2012 04:49 PM PDT Biochemists have found that increasing the level of dehydroascorbate reductase, a naturally occurring enzyme that recycles vitamin C in plants and animals, increases the vitamin's level and results in the production of twin and triplet seedlings in a single seed. The discovery's value lies in the potential to produce genetically identical seedlings and increase production of high-value crops. The extra seedlings per seed may also enhance per-seed survival chances for some species.

You are subscribed to email updates from ScienceDaily: Top Environment News To stop receiving these emails, you may unsubscribe now.	Email delivery powered by Google
Google Inc., 20 West Kinzie, Chicago IL USA 60610