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Latest Organelles Stories

Intracellular ABC Transporters Allow Leaf Beetle Larvae To Accumulate Defensive Substances When Feeding
2013-12-09 11:58:38

Max Planck Institute for Chemical Ecology Similar membrane proteins play a crucial role in the transport of toxic substances out of the cell Scientists at the Max Planck Institute for Chemical Ecology in Jena, Germany, have discovered the decisive biological stimulator for the accumulation of defensive substances in leaf beetle larvae used by the insects to fend off predators: ABC transport proteins, which are found in large quantities in glandular cells of the larvae. The poplar leaf...

2013-11-29 00:20:06

Tokyo, Nov 29, 2013 - (ACN Newswire) - Researchers at Waseda University in Japan have identified key information to help explain the formation of the "spindle apparatus", a structure required for cell division. Their findings shed light on the mechanisms behind "self-organization" - an essential characteristic of biological structures.Organisms are composed of a variety of structures including muscles, internal organs, and brains, all of which are created through a process known as...

Inner Workings Of A Bacterial Black Box Captured On Time-lapse Video
2013-11-25 15:01:28

[ Watch The Video: Capturing the Carboxysome in Motion ] DOE/Joint Genome Institute Cyanobacteria, found in just about every ecosystem on Earth, are one of the few bacteria that can create their own energy through photosynthesis and "fix" carbon – from carbon dioxide molecules – and convert it into fuel inside of miniscule compartments called carboxysomes. Using a pioneering visualization method, researchers from the University of California, Berkeley and the Department of Energy...

Study Sheds Light On Treatment For Parkinson's Disease
2013-11-25 07:02:43

NIH/National Institute of Neurological Disorders and Stroke Scientists at the National Institutes of Health have used RNA interference (RNAi) technology to reveal dozens of genes which may represent new therapeutic targets for treating Parkinson's disease. The findings also may be relevant to several diseases caused by damage to mitochondria, the biological power plants found in cells throughout the body. "We discovered a network of genes that may regulate the disposal of dysfunctional...

2013-11-25 04:20:04

Tokyo, Nov 25, 2013 - (ACN Newswire) - Researchers at Waseda University in Japan have for the first time directly observed the "molecular motor", called Xkid, that plays a critical role in facilitating the proper alignment of chromosomes during cell division. Their findings are expected to contribute greatly to elucidating the molecular mechanisms of chromosome segregation, a key aspect of the development of certain medical disorders including cancer and birth defects.A human being begins as...

2013-11-19 13:18:59

Muscle movements generate body heat. However, body heat can also be generated in another way: body fat contains a small number of brown adipose cells – special fat cells that can generate heat without muscle activity. They do this using a protein known as UCP1 that enables babies or hibernating animals to keep warm without shivering. A research team at the University of Veterinary Medicine (Vetmeduni Vienna) has found that a specific chemical compound, an aldehyde, can activate UCP1 under...

2013-11-14 13:06:37

Researchers have created tiny protein tubes named after the Roman god Janus which may offer a new way to accurately channel drugs into the body’s cells. Using a process which they liken to molecular Lego, scientists from the University of Warwick and the University of Sydney have created what they have named ‘Janus nanotubes’ – very small tubes with two distinct faces. The study is published in the journal Nature Communications. They are named after the Roman god Janus who is...

Researchers Explain The Flagellar Synchronisation Of Swimming Algae
2013-10-25 14:14:45

Max Planck Institute The beating of flagella is one of the basic principles of movement in the cellular cosmos. However, up to now, scientists were unsure as to how the movements of several of these small cellular appendages are synchronized. Dresden-based researchers from the Max Planck Institute of Molecular Cell Biology and Genetics and the MPI for the Physics of Complex Systems have now succeeded in demonstrating how the green alga Chlamydomonas synchronizes the movements of its two...


Word of the Day
tesla
  • The unit of magnetic flux density in the International System of Units, equal to the magnitude of the magnetic field vector necessary to produce a force of one newton on a charge of one coulomb moving perpendicular to the direction of the magnetic field vector with a velocity of one meter per second. It is equivalent to one weber per square meter.
This word is named for Nikola Tesla, the inventor, engineer, and futurist.