Navigation Links
Plants spice up their sex life with defensins

Since the beginning, plants and animals have deployed various mechanisms to fight pathogens. Proteins have always played an important part in this armoury, and a broad variety of defensin proteins have become part of the immune system of plants, insects and other animals except mammals. Now scientists from Regensburg discovered that those proteins also play a role in the "sex life" during the fertilization process of plants. These findings will be published next week in the online, open access journal PLoS Biology.

The research team, led by Dr. Thomas Dresselhaus from the Regensburg Center of Biochemistry and Biophysics, showed that special forms of defensins are released by the egg apparatus in maize to open up potassium-ion channels in the male partner the pollen tube resulting in an explosive release of male sperm cells. This process is a pre-requisite for the fertilization that follows.

The findings led to the assumption that the first flowering plants that came into being about 170 million years ago adapted a pathogen-fighting mechanism to promote interaction between male and female cells and release sperm cells for fertilization. These results shed a completely new light on the evolution of processes necessary for the fertilization of flowering plants, and may lead to new possibilities for overcoming the barrier between crops that cannot yet be crossed.


Contact: Dr. Thomas Dresselhaus
Public Library of Science

Page: 1

Related biology news :

1. Technique yields potential biological substitute for dental implants
2. When plants attract bugs, it may be their own fault
3. CO2 effects on plants increases global warming
4. Study gives green light to plants role in global warming
5. Study gives green light to plants’ role in global warming
6. Gene discovery may lead to new varieties of soybean plants
7. Production of biofuels could benefit by controlling the types of cells that develop in plants
8. New evidence in plants shows micro-RNA can move
9. 10 most wanted plants inspected for clues to climate change
10. Cell transplants may benefit children with cerebral palsy
11. Scientists find new genes for cancer, other diseases in plants, yeast and worms
Post Your Comments:
(Date:4/11/2017)... 2017 No two people are believed ... New York University Tandon School of Engineering and ... that partial similarities between prints are common enough ... phones and other electronic devices can be more ... lies in the fact that fingerprint-based authentication systems ...
(Date:4/6/2017)... LONDON , April 6, 2017 ... Control, RFID, ANPR, Document Readers, by End-Use (Transportation & ... Energy Facility, Oil, Gas & Fossil Generation Facility, Nuclear ... Healthcare, Educational, Other) Are you looking for ... Authentication sector? ...
(Date:4/5/2017)... Today HYPR Corp. , leading innovator ... of the HYPR platform is officially FIDO® Certified ... architecture that empowers biometric authentication across Fortune 500 enterprises ... over 15 million users across the financial services industry, ... product suites and physical access represent a growing portion ...
Breaking Biology News(10 mins):
(Date:10/11/2017)... ... 2017 , ... Proscia Inc ., a data solutions ... “Pathology is going digital. Is your lab ready?” with Dr. Nicolas Cacciabeve, Managing ... how Proscia improves lab economics and realizes an increase in diagnostic confidence.* ...
(Date:10/11/2017)... , ... October 11, 2017 , ... ... (FDA) has granted orphan drug designation to SBT-100, its novel anti-STAT3 (Signal Transducer ... treatment of osteosarcoma. SBT-100 is able to cross the cell membrane and bind ...
(Date:10/10/2017)... Parks Associates announced today that Tom Kerber , Director ... , October 11 in Scottsdale, Arizona . Kerber will ... safety and security products impact the competitive landscape. ... Parks Associates: Smart Home Devices: Main Purchase Driver ... "The residential security market has experienced continued growth, and the introduction of ...
(Date:10/9/2017)... ... October 09, 2017 , ... The award-winning American Farmer television series will ... American Farmer airs Tuesdays at 8:30aET on RFD-TV. , With global population estimates ... of how to continue to feed a growing nation. At the same time, many ...
Breaking Biology Technology: