The “Trojan horse” strategy: Seed fungal endophyte symbiosis helps to explain the invasion success of the grass, Poa annua, in Maritime Antarctica

0577464 - BÚ 2024 RIV US eng J - Článek v odborném periodiku
Molina-Montenegro, M. A. - Ballesteros, G. I. - Acuña-Rodríguez, I. S. - Pertierra, L. R. - Greve, M. - Richardson, David Mark - Convey, P. - Biersma, E. M. - Goodall-Copestake, W. P. - Newsham, K. K.
The “Trojan horse” strategy: Seed fungal endophyte symbiosis helps to explain the invasion success of the grass, Poa annua, in Maritime Antarctica.
Diversity and Distributions. Roč. 29, č. 11 (2023), s. 1432-1444. ISSN 1366-9516. E-ISSN 1472-4642
Grant CEP: GA MŠMT(CZ) EF18_053/0017850
Institucionální podpora: RVO:67985939
Klíčová slova: annual bluegrass (Poa annua) * King George Island * seed fungal endophytes
Obor OECD: Ecology
Impakt faktor: 4.6, rok: 2022
Způsob publikování: Open access
https://doi.org/10.1111/ddi.13768

Endophytes were at least twice as frequent in seeds from Maritime Antarctica than in those from other regions. A higher proportion of endophyte-colonized seeds germinated and survived than did uncolonised seeds, but only when they originated from Maritime Antarctica. Seed endophytes increased the competitiveness of P. annua with D. antarctica, but only for plants grown from Maritime Antarctic seeds. In the field, endophyte-colonized seeds from Maritime Antarctica germinated and survived more frequently than uncolonised seeds, and osmoprotection was higher in seedlings grown from colonized seed. The findings indicate beneficial effects of seed endophytes on invasion-related traits of P. annua, such as survival, germination success and flowering. Together with vegetative and reproductive traits facilitating the colonization process, the seed-fungal endophyte symbiosis can be invoked as an important factor explaining the invasiveness of P. annua in Maritime Antarctica.
Trvalý link: https://hdl.handle.net/11104/0347967