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:7/23/2014)... Canada has issued a high health risk warning for ... the region due to forest fires. In the ... drifting eastward along normal wind patterns. Fire is ... from fires is not quite so obvious and its ... type of fire (forest, brush, crop, structure, tires, waste ...
(Date:7/23/2014)... Migratory songbirds are disappearing, and though conservationists are ... of habitat, acid rain and light pollution, a key ... these birds go once they leave their breeding sites, ... way? , To answer this question, a team of ... ever migratory connectivity map produced for a songbird, using ...
(Date:7/23/2014)... million people around the world have no access to ... (WHO), 3.4 million people die from water-related diseases every ... of making a contribution to solving this problem. Working ... head of the Functional Materials Laboratory, the 23-year-old spent ... prototype. , "What makes our DrinkPure filter unique is ...
Breaking Biology News(10 mins):York University researchers use bird 'backpacks' to put wood thrushes migration on the map 2ETH student develops filter for clean water around the world 2
... of the American Indian announced that it has ... the U.S. Green Building Council and verified by ... Energy and Environmental Design, is the nation,s preeminent ... high-performance green buildings. "This achievement not only ...
... new $13.75 million project that will apply data ... environmental factors behind neuropsychiatric disorders. The Sylvio ... the University of Chicago, will combine the statistical ... record databases to confront diseases that have so ...
... 2011Measurable changes in brain function and communication between brain ... the early stages of human immunodeficiency virus (HIV) infection. ... detailed in an article in the groundbreaking new neuroscience ... peer-reviewed journal published by Mary Ann Liebert, Inc ...
Cached Biology News:National Museum of the American Indian awarded prestigious LEED Green Building Certification 2New data-mining effort launched to study mental disorders 2New data-mining effort launched to study mental disorders 3Changes in brain function in early HIV infection: A reliable indicator of disease prognosis? 2
(Date:7/24/2014)... 24, 2014 Three companies from the ... Livestrong’s Big C Competition. Out of 700 competition entrants, ... to the semi-final round. In this round twenty teams ... program, complete with mentoring from thought-leaders and medical entrepreneurs ... of the angelMD commitment to the Livestrong vision around ...
(Date:7/24/2014)... July 24, 2014 1000 balances – ... input on customers’ weighing needs and expertly narrows down ... of balances, scales or even terminals. , First, ... smallest weight (or select readability instead) and define the ... additional selection criteria narrows down the list to models ...
(Date:7/24/2014)... July 24, 2014   Cypher Genomics, Inc., ... appointment of Adam Simpson as president ... rapid and comprehensive annotation and interpretation of individual ... "Cypher,s technology has the potential to ... enhancing diagnostic accuracy, optimizing therapeutic approaches and reducing ...
(Date:7/23/2014)... United Arab Emirates (UAE) (PRWEB) July 23, 2014 ... Grace Century recently announced that its biobanking project, ... Vaught , Ph.D. to its growing Advisory Board. ... are very pleased to have Dr. Vaught onboard with ... scientific depth and expertise that Provia’s management team brings ...
Breaking Biology Technology:3 angelMD Startups Make Livestrong Big C Semi-finals 2Cypher Genomics Announces the Appointment of Adam Simpson as President and COO to Advance Transformative Genome Interpretation Technology 2Cypher Genomics Announces the Appointment of Adam Simpson as President and COO to Advance Transformative Genome Interpretation Technology 3Provia Laboratories Adds Dr. Jim Vaught, Ph.D., Former Chief of BBRB, to Advisory Board 2Provia Laboratories Adds Dr. Jim Vaught, Ph.D., Former Chief of BBRB, to Advisory Board 3Provia Laboratories Adds Dr. Jim Vaught, Ph.D., Former Chief of BBRB, to Advisory Board 4
... simple surface treatment technique demonstrated by a collaboration between ... (NIST), Penn State and the University of Kentucky potentially ... of organic electronic transistors on polymer sheets for a ... and flexible sheets of biosensor arrays for field diagnostics. ...
... ALTO, Calif., Feb. 19 Telik, Inc.,(Nasdaq: TELK ... will,be held on Wednesday, February 27, 2008 at 4:30 ... earlier that day of the company,s,financial results for the ... The conference call will be accessible via Telik,s website ...
... Kensey Nash Corporation,(Nasdaq: KNSY ) is ... Conference at the Mission Bay Conference Center in ... G. Evans, Kensey Nash,s Chief Operating Officer, will ... (PT). The,presentation materials will be available on the ...
Cached Biology Technology:Directed self-ordering of organic molecules for electronic devices 2
Human plasmacytoid dendritic cells, BDCA-4+, For immunohistochemistry (IHC) Cell Chip with Human Peripheral Blood Dendritic Cells and EPCs...
Umbilical cord blood basophils, For immunohistochemistry (IHC)...
Human peripheral blood CD8+ T cells, For immunohistochemistry (IHC) Cell Chip with Human Peripheral Blood PBMC and T Cells...
Umbilical cord blood CD4+ T cells, For immunohistochemistry (IHC) Cell Chip with Human Umbilical Cord Blood MNCs and T Cells...
Biology Products: