Navigation Links
Tiny algae shed light on photosynthesis as a dynamic property
Date:11/28/2012

process of endosymbiotic gene transfer," said Archibald. Unlike most other secondarily photosynthetic eukaryotes in which the endosymbiont's genetic matter has completely migrated over to the host, in cryptophytes and chlorarachniophytes the nucleus and chloroplast from the engulfed algae remain partitioned off from the host cell. "As a consequence," he added," genetic and biochemical mosaicism is rampant in G. theta and B. natans."

Both researchers highlighted the unexpected finding of alternative splicing in B. natans. Grigoriev noted that the phenomenon is one typical for higher eukaryotes, and Archibald added that the levels "greatly exceed that seen in the model plant Arabidopsis and on par with the human cerebral cortex, unprecedented and truly remarkable for a unicellular organism. This challenges the paradigm that complex alternative splicing is a phenomenon limited to sophisticated multicellular organisms."

"The evolution of chloroplasts, the photosynthetic compartments of plants and algal cells, is complex but has had a profound effect on our planet," said Chris Howe, Professor of Plant and Microbial Biochemistry at Cambridge University in England. "This paper gives us fascinating insights into how host and nucleomorph genomes have been remodeled during evolution. As well as providing a goldmine of information on the general biology of these organisms, the paper shows us that the nucleomorph genomes have probably persisted simply because the mechanism for transfer of genes to the nucleus was closed off, rather than because nucleomorphs had to be retained as separate entities. The paper also shows us that the evolutionary history of the nucleomorph-containing organisms was even more complex than we thought, with evidence for genes from many different sources in their nuclei. Overall, it has provided important insights into the fundamental processes of cell symbiosis and genome reshaping that have produced some of the
'/>"/>

Contact: David Gilbert
degilbert@lbl.gov
925-296-5643
DOE/Joint Genome Institute
Source:Eurekalert

Page: 1 2 3 4

Related biology news :

1. Algae held captive and genes stolen in crime of evolution
2. Bioengineered marine algae expands environments where biofuels can be produced
3. Algae Biomass Organization hails new UCSD study showing saltwater algae viable for biofuels
4. Algae can draw energy from other plants
5. DNA analysis aids in classifying single-celled algae
6. The slippery slope to slime: Overgrown algae causing coral reef declines
7. Oil from algae closer to reality through studies by unique collaboration of scientists
8. U OF A expert pinpoints nutrient behind fresh water algae blooms
9. Ecologist: Genetically engineered algae for biofuel pose potential risks that should be studied
10. Viruses linked to algae that control coral health
11. A nanoscopic look at the estuarys green algae
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:8/25/2014)... fires began as a lightning strike on August 12, 2014. ... 20% contained. There are close to 2,000 personnel ... many small fires and a number of large ones. ... account for about 100 acres. An inversion layer settled ... on August 24, keeping fire activity moderate. As the inversion ...
(Date:8/25/2014)... Many Americans need extraordinary willpower to avoid becoming obese ... too much. For members of minority groups, maintaining a ... new research led by Luis Rivera, an experimental social ... common for minorities in the United States to endure ... inferior, and that these attitudes can prevent people from ...
(Date:8/25/2014)... 2014 Nearly 1 in 6 adults worldwide may ... disorder can cause serious complications. Auriculotherapy, a form ... the outer ear, may help in managing constipation. ... that evaluated the effectiveness of auriculotherapy in treating ... a Review article in The Journal of ...
Breaking Biology News(10 mins):Happy Camper and July Fire Complexes in California 2Racial and ethnic stereotypes may contribute to obesity among minorities 2
... its damaging effect on the environment and its illegal ... to adverse effects on human health, such as inflammation ... damage and possibly cancer. In a ... journal Environmental Research Letters, researchers took air ...
... pinpoint a small RNA that spurs cells to manufacture a ... Alzheimer,s disease (AD) or other types of neurodegeneration. The study ... of Cell Biology ( www.jcb.org ). Like ... in more than one version. Although scientists have identified numerous ...
... Nature a new molecular pathway used to suppress blood ... potential therapeutic value for fighting diseases of the retina and ... blood cells involved in the immune system, use this molecular ... in the same study researchers were able to reverse this ...
Cached Biology News:'E-waste pollution' a threat to human health, new research suggests 2Novel pathway regulating angiogenesis may fight retinal disease, cancers 2
(Date:8/26/2014)... The 20 ambassadors representing the ALS Therapy ... the following statement on Facebook today regarding the global ... funding specifically for ALS research: , “Who would have ... would raise all this awareness and funding toward ALS ... behalf of the entire ALS community, would like to ...
(Date:8/26/2014)... argument has just been added to the growing ... as the next big thing in the high-tech ... materials. An international collaboration of researchers led by ... (DOE),s Lawrence Berkeley National Laboratory (Berkeley Lab) has ... transfer in photo-excited MX2 materials. The recorded charge ...
(Date:8/26/2014)... , Aug. 26, 2014 An analysis by ... of all Dengue virus strains in Pubmed, has revealed ... to 1944. This conservation and sharing of specific Replikin ... Dengue Blocker-Vaccine™ candidate, as it did for the H5N1 ... of which have been found to be effective (1,2). ...
(Date:8/26/2014)... Mich. , Aug. 26, 2014   ... development of breakthrough oral medicines to treat autoimmune ... immune modulation, today announced the appointment of ... company,s scientific advisory board.  Dr. Singh will lead ... to advance Lycera,s multiple ongoing research programs and ...
Breaking Biology Technology:ALS TDI’s Young Faces of ALS Ambassadors Thank You for Accepting the Ice Bucket Challenge to End ALS 2ALS TDI’s Young Faces of ALS Ambassadors Thank You for Accepting the Ice Bucket Challenge to End ALS 3ALS TDI’s Young Faces of ALS Ambassadors Thank You for Accepting the Ice Bucket Challenge to End ALS 4Competition for graphene 2Lycera Appoints Harinder Singh, Ph.D., as Chair of Scientific Advisory Board 2Lycera Appoints Harinder Singh, Ph.D., as Chair of Scientific Advisory Board 3
... - Educators and software developers will have the ... learning process at the first annual Games+Learning+Society conference ... conference is being held by Games And Professional Practice ... Learning (ADL) Co-Lab and a group of instructors at ...
... Marquette University and UGS, a provider ... the largest in-kind contribution ever presented to Marquette University, in ... a market value it says is more than $30.5 million. ... Jim Factor's Geometric Modeling Lab in the Department of Mathematics, ...
... Assembly on Thursday passed AB 499, a proposed ban on ... would outlaw the cloning of embryos both for reproductive purposes ... the making of a cloned embryo for the purpose of ... were to become law would go up to ten years ...
Cached Biology Technology:Education conference to draw together games researchers 2
... rapid analytical to medium scale affinity purification ... vectors. Sufficient reagents are provided for purification ... under native or denaturing conditions. Crude samples ... retains STag fusion proteins. After unbound proteins ...
High affinity antibody reacting with S-100 ab heterodimer. Could be used for Western blotting application and immunoassay....
... Ingredients (g/L):,Tryptone, 10 ,Yeast extract, 5 ... 0.3 ,Ferric ammonium citrate, 0.5 ,IPTG, ... water soluble, autoclavable chromogenic substrate for ... by -galactosidase generates a black insoluble ...
S-100 alpha/beta chain (8B10)...
Biology Products: