TY  - JOUR
A1  - Tyc, Olaf
A1  - Putra, Rocky
A1  - Gols, Rieta
A1  - Harvey, Jeffrey A.
A1  - Garbeva, Paolina
T1  - The ecological role of bacterial seed endophytes associated with wild cabbage in the United Kingdom
T2  - MicrobiologyOpen
N2  - Endophytic bacteria are known for their ability in promoting plant growth and defense against biotic and abiotic stress. However, very little is known about the microbial endophytes living in the spermosphere. Here, we isolated bacteria from the seeds of five different populations of wild cabbage (Brassica oleracea L) that grow within 15 km of each other along the Dorset coast in the UK. The seeds of each plant population contained a unique microbiome. Sequencing of the 16S rRNA genes revealed that these bacteria belong to three different phyla (Actinobacteria, Firmicutes, and Proteobacteria). Isolated endophytic bacteria were grown in monocultures or mixtures and the effects of bacterial volatile organic compounds (VOCs) on the growth and development on B. oleracea and on resistance against a insect herbivore was evaluated. Our results reveal that the VOCs emitted by the endophytic bacteria had a profound effect on plant development but only a minor effect on resistance against an herbivore of B. oleracea. Plants exposed to bacterial VOCs showed faster seed germination and seedling development. Furthermore, seed endophytic bacteria exhibited activity via volatiles against the plant pathogen F. culmorum. Hence, our results illustrate the ecological importance of the bacterial seed microbiome for host plant health and development.
KW  - bacteria
KW  - endophytes
KW  - fungal pathogens
KW  - insect herbivory
KW  - plant growth
KW  - plant resistance
KW  - plant-insect interactions
KW  - seed germination
Y1  - 2019
UR  - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/53323
UR  - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-533232
SN  - 2045-8827
N1  - This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
VL  - 9
IS  - 1, e954
SP  - 1
EP  - 19
PB  - Wiley
CY  - Malden, Mass.
ER  -