Navigation Links
Biologists discover gene behind 'plant sex mystery'
Date:10/22/2008

An enigma unique to flowering plants has been solved by researchers from the University of Leicester (UK) and POSTECH, South Korea.

The discovery is reported in the journal Nature on 23 October 2008.

Scientists already knew that flowering plants, unlike animals require not one, but two sperm cells for successful fertilisation.

The mystery of this 'double fertilization' process was how each single pollen grain could produce 'twin' sperm cells. One to join with the egg cell to produce the embryo, and the other to join with a second cell in the ovary to produce the endosperm, a nutrient-rich tissue, inside the seed.

Double fertilisation is essential for fertility and seed production in flowering plants so increased understanding of the process is important.

Now Professor David Twell, of the Department of Biology at the University of Leicester and Professor Hong Gil Nam of POSTECH, South Korea report the discovery of a gene that has a critical role in allowing precursor reproductive cells to divide to form twin sperm cells.

Professor Twell said: "This collaborative project has produced results that unlock a key element in a botanical puzzle.

The key discovery is that this gene, known as FBL17, is required to trigger the destruction of another protein that inhibits cell division. The FBL17 gene therefore acts as a switch within the young pollen grain to trigger precursor cells to divide into twin sperm cells.

"Plants with a mutated version of this gene produce pollen grains with a single sperm cell instead of the pair of sperm that are required for successful double fertilization.

"Interestingly, the process employed by plants to control sperm cell reproduction was found to make use of an ancient mechanism found in yeast and in animals involving the selective destruction of inhibitor proteins that otherwise block the path to cell division.

"Removal of these blo
'/>"/>

Contact: Professor David Twell
twe@le.ac.uk
44-011-625-22281
University of Leicester
Source:Eurekalert  

Page: 1 2

Related biology news :

1. The American Society of Plant Biologists announces 2007 awards
2. Biologists expose hidden costs of firefly flashes
3. Tufts University biologists link Huntingtons disease to health benefits in young
4. UD plant biologists uncover top wetland plants hidden weapon
5. Evolution is deterministic, not random, biologists conclude from multi-species study
6. Biologists find unusual plant gene: abstinence by mutual consent
7. Ant parasite turns host into ripe red berry, biologists discover
8. Cell biologists announce child-care grants for scientist-parents at annual meeting
9. Biologists surprised to find parochial bacterial viruses
10. Biologists at UC San Diego identify key protein in cells self-eating function
11. Biologists are from Mars, chemists are from Venus?
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Biologists discover gene behind 'plant sex mystery'
(Date:8/20/2014)... from the University of Tbingen, Arizona State University, the ... Public Health Institute (Swiss TPH) isolated Mycobacterium pinnipedii ... least 1000 years old. The pathogen is a relative ... occasionally causes disease in humans today. These researchers assume ... Peruvian coast. "The link to sea lions was unexpected" ...
(Date:8/20/2014)... that acral melanomas the rare type of skin cancer ... distinct from other more common types of skin cancer, according ... Pigment Cell & Melanoma Research . , Acral melanoma ... the feet, nail-beds and other hairless parts of the skin. ... by UV damage from the sun. , The team, from ...
(Date:8/20/2014)... and plastic bags could one day be made out ... scientists are now reporting. The novel process they developed ... with its agricultural and plastic waste problems, appear in ... Ilker S. Bayer and colleagues at the Italian Institute ... growing. In 2012, its production reached 288 million tons ...
Breaking Biology News(10 mins):Scientists learn more about rare skin cancer that killed Bob Marley 2
... , Cincinnati, (OH) - The International Rett Syndrome Foundation (IRSF) ... 18 new grants designed to study a variety of diverse ... and outcome measures for Rett syndrome. IRSF is the ... Rett syndrome research with the cumulative total of research spending ...
... German-based project is setting out to rescue biodiversity data at ... institutional databases, are kept in outdated digital storage systems, or ... Botanic Garden and Botanical Museum Berlin-Dahlem, provides a good example ... data. This is one of a set of data ...
... that is associated with the spread of cancer has won ... one of this year,s Kaye Innovation Awards at the university. ... of Prof. Chaim Gilon and Prof. Alexander Levitzki at the ... B (PKB, also called Akt). Since the activation of PKB ...
Cached Biology News:IRSF awards over $1.5 million for basic and translational research for Rett syndrome 2IRSF awards over $1.5 million for basic and translational research for Rett syndrome 3German research team targets 'at risk' data on biodiversity 2German research team targets 'at risk' data on biodiversity 3
(Date:8/21/2014)... , Aug. 21, 2014 OTC ... Pharmaceuticals Inc., a biotechnology company, on its approval ... previously traded on OTCQX®, the best marketplace for ... Markets Group. Logo - http://photos.prnewswire.com/prnh/20110118/MM31963LOGO ... the successful execution of its growth strategy and ...
(Date:8/21/2014)... 21, 2014 Ontotext S4 , ... Ontotext . Now the same enterprise hardened ... structured and unstructured data is available to start-ups and ... enterprise technology. Organizations that do not have resources to ... can use S4 since there is no need for ...
(Date:8/20/2014)... 2014 Clintrax Global, Inc., a worldwide ... Raleigh, NC , recently announced the ... President of Administration. As Vice ... processes, including their alignment with company objectives and ... as an HR executive, specializing in needs assessments, ...
(Date:8/20/2014)... Aug. 20, 2014 Neurotrope, Inc. (OTCQB: ... conference call to provide an update on Company ... daylight timeDial-in numbers:(888) 505-4369 (U.S. and Canada) or ... cast: www.neurotropebioscience.com , under "Investor Relations"The teleconference replay ... through September 2, 2014 at (888) 203-1112 (U.S. ...
Breaking Biology Technology:OTC Markets Group Congratulates Immune Pharmaceuticals on NASDAQ Listing 2Ontotext Releases Text Mining & Semantic Technology Running in the Cloud – Welcome to “S4? 2Ontotext Releases Text Mining & Semantic Technology Running in the Cloud – Welcome to “S4? 3Ontotext Releases Text Mining & Semantic Technology Running in the Cloud – Welcome to “S4? 4Clintrax Global, Inc. Announces Addition to Executive Team 2Neurotrope To Host Conference Call 2
... Jan. 9, 2012 Reportlinker.com announces ... is available in its catalogue: , ... Transplantation, Cord Blood Banking and Drug ... There is great interest ...
... Sequenom, Inc. (NASDAQ: SQNM ), a life ... of the Company,s 2011 performance and accomplishments, as well as ... Initial 2011 Performance Results ... for 2011 (unaudited). , Over 21,000 total prenatal and ...
... today that it has secured $47.5 million in Series ... financing along with existing investors OrbiMed Advisors, New Enterprise ... financing, Josh Bilenker, M.D., Partner at Aisling Capital, will ... round will support commercialization of the company,s Atlas™ System ...
Cached Biology Technology:Stem Cells: Worldwide Markets for Transplantation, Cord Blood Banking and Drug Development 2Stem Cells: Worldwide Markets for Transplantation, Cord Blood Banking and Drug Development 3Stem Cells: Worldwide Markets for Transplantation, Cord Blood Banking and Drug Development 4Stem Cells: Worldwide Markets for Transplantation, Cord Blood Banking and Drug Development 5Stem Cells: Worldwide Markets for Transplantation, Cord Blood Banking and Drug Development 6Sequenom Announces 2011 Operational Highlights and Early 2012 Outlook 2Sequenom Announces 2011 Operational Highlights and Early 2012 Outlook 3Sequenom Announces 2011 Operational Highlights and Early 2012 Outlook 4Roka Bioscience Secures $47.5 Million in Series D Financing 2