Home > Press Releases
JST Press Release

14th May 2013
Japan Science and Technology Agency (JST)
5-3, Yonbancho, Chiyoda-ku, Tokyo 102-8666
URL http://www.jst.go.jp/EN/index.html

Independent control by each female gamete prevents the attraction of multiple pollen tubes

In flowering plants, double fertilization is normally accomplished by the first pollen tube, with the fertilized ovule subsequently inhibiting the attraction of a second pollen tube. However, the mechanism of second-pollen-tube avoidance remains unknown. We discovered that second-pollen-tube avoidance is dual controlled by the two female gametes independently and synergistically. In addition, we also demonstrated the first examples of artificial hetero-fertilization in Arabidopsis. The current findings can apply for breeding program.

Researcher Information

JST ERATO (Exploratory Research for Advanced Technology)
Higashiyama Live-Holonics Project

Journal Information

Maruyama D., Hamamura Y., Takeuchi H., Susaki D., Nishimaki M., Kurihara D., Kasahara R.D., Higashiyama T., Independent control by each female gamete prevents the attraction of multiple pollen tubes, Developmental Cell, 2013, 25, 317-323.
doi: 10.1016/j.devcel.2013.03.013


[About Research]
Tetsuya Higashiyama Ph.D.
Research Director
ERATO Higashiyama Live-Holonics Project
HP: http://www.liveholonics.com/en/

[About Program]
Yoshizumi Sakamoto
Life Innovation Group
Department of Research Project
Japan Science and Technology Agency (JST)
HP: http://www.jst.go.jp/erato/en/index.html


JST, an integrated organization of science and technology in Japan, establishes an infrastructure for the entire process from the creation of knowledge to the return to the society. For more information, visit http://www.jst.go.jp/EN/