science stuff from the wise mammoth

Where science and occasional humor meet.

science-junkie:

Parasitic Plant Strangleweed Injects Host With Thousands Of Its Own Expressed Genes
Virginia Tech professor and Fralin Life Institute affiliate Jim Westwood has made a discovery about plant-to-plant communication: enormous amounts of genetic messages in the form of mRNA transcripts are transmitted from the parasitic plant Cuscuta (known more commonly as dodder and strangleweed) to its hosts.
Using Illumina next generation sequencing technologies to sequence the tissues of the host and an attached parasite, the team found that the number of genes that gets passed into the host depends on the identity of the host.  The tomato plant received 347 of the strangleweed’s mRNAs, whereas the Arabidopsis received an astonishing 9514 mRNAs.  When Arabidopsis plant receives this many mRNAs, the total genetic material of tissues in contact with the strangleweed is about 45% from the parasite.
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science-junkie:

Parasitic Plant Strangleweed Injects Host With Thousands Of Its Own Expressed Genes

Virginia Tech professor and Fralin Life Institute affiliate Jim Westwood has made a discovery about plant-to-plant communication: enormous amounts of genetic messages in the form of mRNA transcripts are transmitted from the parasitic plant Cuscuta (known more commonly as dodder and strangleweed) to its hosts.

Using Illumina next generation sequencing technologies to sequence the tissues of the host and an attached parasite, the team found that the number of genes that gets passed into the host depends on the identity of the host.  The tomato plant received 347 of the strangleweed’s mRNAs, whereas the Arabidopsis received an astonishing 9514 mRNAs.  When Arabidopsis plant receives this many mRNAs, the total genetic material of tissues in contact with the strangleweed is about 45% from the parasite.

Read more

8bitfuture:

Video: NASA test firing of their new 3D printed rocket.

NASA was able to reduce the number of components in this rocket’s injector from 163, down to just two, by using a printing technology called “selective laser melting”.

“The world you take for granted everyday is being aggressively designed for you by people who don’t know you.

The potential of design in supporting social and personal action resides in the democratic nature of its process. Design is good for defining a vision and then crafting a plan or roadmap to guide the realization of this vision. Visions with clear paths of implementation provide a beacon for us to collaborate efficiently and optimistically on large projects.”

Jason Severs, via

(via stoweboyd)