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Latest Arabidopsis thaliana Stories

2014-07-03 10:55:44

Society for Experimental Biology Scientists have identified a new mutant plant that accumulates excessive amounts of starch, which could help to boost crop yields and increase the productivity of plants grown for biofuels. Researchers from the Max Planck Institute of Molecular Plant Physiology looked for excessive starch accumulators in the model plant Arabidopsis thaliana that had been mutated using Agrobacterium tumefaciens. In one of the mutant plants, the starch granules were...

2014-07-02 15:10:46

Society for Experimental Biology Growing plants in a microscope is helping scientists to view roots developing in 3D and in real time. "With the growth conditions under our control, we can explore how roots respond to different environmental conditions", says Professor Ernst Stelzer (Goethe Universität Frankfurt am Main, Germany). "This could help plant breeders to select crops which are more resistant to drought or flooding." Scientists already know that lateral roots in plants...

2014-05-21 10:14:43

UC Davis Can plants and animals evolve to keep pace with climate change? A study published May 19 in the journal Proceedings of the National Academy of Sciences shows that for at least one widely-studied plant, the European climate is changing fast enough that strains from Southern Europe already grow better in the north than established local varieties. Small and fast-growing, Arabidopsis thaliana is widely used as the “lab mouse” of plant biology. The plant grows in Europe from...

Work On Microbial Signaling Offers A Window Into Better Biofuels, Human Health
2014-04-25 03:28:23

Tom Rickey, DOE/Pacific Northwest National Laboratory A common plant puts out a welcome mat to bacteria seeking to invade, and scientists have discovered the mat's molecular mix. The study published this week in the Proceedings of the National Academy of Sciences reveals new targets during the battle between microbe and host that researchers can exploit to protect plants. The team showed that the humble and oft-studied plant Arabidopsis puts out a molecular signal that invites an...

Researchers Discover Gene Responsible For Dissected Leaves
2014-02-14 13:19:31

Max Planck Institute Arabidopsis thaliana lost the RCO gene over the course of evolution and thus forms simple leaves Spinach looks nothing like parsley, and basil bears no resemblance to thyme. Each plant has a typical leaf shape that can differ even within the same family. The information about what shape leaves will be is stored in the DNA. According to researchers at the Max Planck Institute for Plant Breeding Research in Cologne, the hairy bittercress (Cardamine hirsuta) has a...

2013-11-26 10:20:18

The University of Geneva, Switzerland, has generated UV-resistant transgenic plants which produce high levels of antioxidants Plants have a love-hate relationship with sunlight. While some wavelengths are indispensable to them for performing photosynthesis, others, such as UV-B, are deleterious. Therefore, plants are equipped to detect these highly toxic rays and mount their defenses. A team led by Roman Ulm, Professor at the Faculty of Sciences at the University of Geneva (UNIGE),...

2013-11-25 13:13:58

A molecular technique that will help the scientific community to analyze -- on a scale previously impossible -- molecules that play a critical role in regulating gene expression has been developed by a research team led by a chemist and a plant biologist at Penn State University. The scientists developed a method that enables more-accurate prediction of how ribonucleic acid molecules (RNAs) fold within living cells, thus shedding new light on how plants -- as well as other living organisms --...

Secret Of Short Stems
2013-11-12 14:21:25

Max Planck Institute Arabidopsis plants that only reach half their normal height have a mutation in the biosynthesis of the plant growth factor gibberellin The normal height to which plants grow is a critical trait. In the wild Arabidopsis thaliana uses the same genetic changes in the biosynthesis of the growth factor gibberellin to cut its size in half as found in semi-dwarf varieties of rice and barley that have been bred by people. When expressing the same phenotype, various plant...

Scientists Misled By Model Plant About Multicellular Growth
2013-10-22 15:37:42

University of Leeds Scientists have misunderstood one of the most fundamental processes in the life of plants because they have been looking at the wrong flower, according to University of Leeds researchers. Arabidopsis thaliana—also known as thale cress or mouse-ear cress—grows abundantly in cracks in pavements all over Europe and Asia, but the small white flower leads a second life as the lab rat of the plant world. It has become the dominant "model plant" in genetics research...

2013-10-07 13:10:55

Recent study illustrates the usefulness of a new index for understanding lateral root initiation; shows nitric oxide can both promote and inhibit lateral root formation The structure and plasticity of root systems play an important role in determining the growth and yield of crop plants, and understanding how environmental and biological factors affect root structure is of key importance for plant scientists—particularly agricultural scientists. Lateral roots, as the name implies, are...


Word of the Day
callithump
  • A somewhat riotous parade, accompanied with the blowing of tin horns, and other discordant noises; also, a burlesque serenade; a charivari.
'Callithump' is a back-formation of 'callithumpian,' a 'fanciful formation' according to the Oxford English Dictionary. However, the English Dialect Dictionary, says 'Gallithumpians' is a Dorset and Devon word from the 1790s that refers to 'a society of radical social reformers' or 'noisy disturbers of elections and meetings.'
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