title: Self-discrimination in the tendrils  of the vine Cayratia japonica is mediated  by physiological connection.
abstract: Although self-discrimination has been well documented, especially in animals, self-discrimination in plants has been identified in only a few cases, such as self-incompatibility in flowers and root discrimination. Here, were port a new form of self-discrimination in plants: discrimination by vine tendrils. We found that tendrils of the perennial vine Cayratia japonica were more likely to coil around neighbouring non-self plants than neighbouring self plants in both experimental and natural settings. The higher level of coiling around a physiologically severed self plant compared with that around a physiologically connected self plant suggested that self-discrimination was mediated by physiological coordination between the tendril and the touched plant as reported for self-discrimination in roots. The results highlight the importance of self-discrimination for plant competition not only underground,but also above-ground.
authors: Yuya
authors: Y
authors: Fukano
authors: Akira
authors: A
authors: Yamawo
mesh_terms: D035261:Plant Components, Aerial / Q000254:growth & development / Q000502:physiology*; D063245:Plant Development; D027844:Vitaceae / Q000254:growth & development / Q000502:physiology*