Navigation Links
Plants spice up their sex life with defensins
Date:6/1/2010

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
thomas.dresselhaus@biologie.uni-regensburg.de
Public Library of Science
Source:Eurekalert

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:
*Name:
*Comment:
*Email:
(Date:4/11/2017)... , Apr. 11, 2017 Research and ... Market 2017-2021" report to their offering. ... The global eye tracking market to grow at a ... report, Global Eye Tracking Market 2017-2021, has been prepared based on ... covers the market landscape and its growth prospects over the coming ...
(Date:4/11/2017)... Florida , April 11, 2017 ... a security technology company, announces the appointment of independent Directors ... Bendheim to its Board of Directors, furthering the company,s ... ... of NXT-ID, we look forward to their guidance and benefiting ...
(Date:4/5/2017)... , April 5, 2017  The Allen Institute for ... Cell Explorer: a one-of-a-kind portal and dynamic digital window ... imaging data, the first application of deep learning to ... stem cell lines and a growing suite of powerful ... for these and future publicly available resources created and ...
Breaking Biology News(10 mins):
(Date:8/15/2017)... ... August 15, 2017 , ... Pittcon is pleased to ... and scientific instruments. This year’s symposium, organized by the Pittcon 2018 program chair, ... Bioanalytical Applications.” This dynamic presentation will discuss novel ionization processes, high throughput IMS-MS ...
(Date:8/15/2017)... ... August 15, 2017 , ... Coffea arabica accounts for 70 ... factors. During this educational webinar, participants will learn about the importance of genomics ... better understanding of how genomics is important for coffee breeding improvement. , Attendees ...
(Date:8/14/2017)... NY (PRWEB) , ... August 14, 2017 , ... ... Clinical Trials event, which will take place on September 6, 2017 at the ... Karlin, MD , Head of Experimental Medicine, Informatics, and Regulatory Strategy, Pfizer Innovative Research ...
(Date:8/11/2017)... Wauwatosa, WI (PRWEB) , ... August 11, 2017 ... ... transparency in food production, and, in particular, more natural alternatives to synthetic ingredients,” ... and innovation of Third Wave, with the established manufacturing presence and know-how of ...
Breaking Biology Technology: