Why Mildew Resistant But Infertile Arabidopsis PlantsNovember 26, 2010
Two proteins, Feronia and Nortia were found to be involved in plant fertilization and susceptibility to powdery mildew infection in Arabidopsis thaliana, by scientists from Max Planck Institute for Plant Breeding Research in Cologne and the University of Zurich. The paper published in Science reports about the protein Feronia which signals the pollen tube that it has reached the embryo sac and has to dislodge the male gametes. The protein is also expressed in the leaves that allows access of the powdery mildew to the plant. Defective Feronia gene however could stop powdery mildew infection but will not lead to successful fertilization as the pollen tube will continuously penetrate the embryo sac and will not dislodge the male gametes.
The Nortia protein on the other hand, combined with Feronia, brings about the fusion of the gametes in the ovary. In Arabidopsis, Nortia has a homologue found in the leaves called MLO which together with Feronia enables mildew to penetrate the plant.
"This dual function indicates why evolution has not yet succeeded in blocking this point of access to mildew. It would clearly be very difficult to decouple these two functions. Therefore, the alternatives are: resistant and infertile, or vulnerable and fertile," says Ralph Panstruga from the Max Planck Institute for Plant Breeding Research. These findings will enable researchers to study in detail the genes coding for the proteins so as to develop mildew-resistant plants that are also fertile.
View http://www.mpg.de/bilderBerichteDokumente/dokumentation/pressemitteilungen/2010/pressemitteilung20101123/ for additional information.
The Crop Biotech Update is a weekly newsletter of ISAAA, a not-for-profit organization. The CBU is distributed for free to over 23,000 subscribers worldwide to inform them about the key developments in biosciences, especially in agricultural biotechnology. Your support will help us in our mission to feed the world with knowledge. You can help by donating as little as $10.
See more articles:
News from Around the World
- Structural Changes Needed in Agriculture Says FAO DG
- Global Biofortification Conference a Success
- Fifth Set of Winners for the CBU Knowledge Campaign
- African Delegation Visits Burkina Faso Bt Cotton Fields
- Orange Sweet Potato Faces a Bright Future in Africa
- KSU Gets Patent for Method to Control Plant Nematodes in Soybean
- Genetic Diversity Helps Growers Manage Environmental Uncertainties
- ARS Scientists Find Psyllid Populations in the Americas are Genetically Distinct
- ISU Scientists Report Missing Genes From One Maize Line to Another
- Mastermind Steroid Found in Plants
- Embrapa Launches WebAgritec System for Agriculture
- NSF Awards US$5 Million Grant to UGA for Corn Centromere Research
- Gene Find Could Lead to Healthier Food, Better Biofuel Production
- Bangladesh Approves Second Year RB Potato Field Trial
- Bt Eggplant Can Help Alleviate Poverty and Improve Environment, Study Shows
- Bayer Science and Education Foundation Awards Young Scientists
- Germany – Case Against Gatersleben Field Destroyer Justified
- Why Mildew Resistant But Infertile Arabidopsis Plants
- Germany Federal Court: Genetic Engineering Act is Constitutional
- Accumulation of Recombinant Human Coagulation Factor IX in Transgenic Soybean Seeds
- Rice Pollen Hybrid Incompatibility Caused by Reciprocal Gene Loss of Duplicated Genes
- Scientists Report Role of the Stomatal Development Regulators in Abiotic Stress Responses
- Beachell-Borlaug Scholarships
- Now Available: Bt Eggplant Brochures in Local Philippine Languages
- ICAR Publishes Farm Innovators 2010
Read the latest:
- Crop Biotech Update (August 17, 2022)
- Genome Editing Supplement (August 10, 2022)
- Gene Drive Supplement (July 27, 2022)
Subscribe to CBU: