The “Trojan horse” strategy: Seed fungal endophyte symbiosis helps to explain the invasion success of the grass, Poa annua, in Maritime Antarctica
Abstract Aim Poa annua L. (annual bluegrass) is presently the sole invasive vascular plant species to have successfully established in Maritime Antarctica, where it poses a significant conservation threat to native plant species. However, the reasons for its success in the region have yet to be esta...
Published in: | Diversity and Distributions |
---|---|
Main Authors: | , , , , , , , , , |
Other Authors: | |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Wiley
2023
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1111/ddi.13768 https://onlinelibrary.wiley.com/doi/pdf/10.1111/ddi.13768 |
id |
crwiley:10.1111/ddi.13768 |
---|---|
record_format |
openpolar |
spelling |
crwiley:10.1111/ddi.13768 2024-09-09T19:10:14+00:00 The “Trojan horse” strategy: Seed fungal endophyte symbiosis helps to explain the invasion success of the grass, Poa annua, in Maritime Antarctica Molina‐Montenegro, Marco A. Ballesteros, Gabriel I. Acuña‐Rodríguez, Ian S. Pertierra, Luis R. Greve, Michelle Richardson, David M. Convey, Peter Biersma, Elisabeth M. Goodall‐Copestake, William P. Newsham, Kevin K. Fondo Nacional de Desarrollo Científico y Tecnológico 2023 http://dx.doi.org/10.1111/ddi.13768 https://onlinelibrary.wiley.com/doi/pdf/10.1111/ddi.13768 en eng Wiley http://creativecommons.org/licenses/by/4.0/ Diversity and Distributions volume 29, issue 11, page 1432-1444 ISSN 1366-9516 1472-4642 journal-article 2023 crwiley https://doi.org/10.1111/ddi.13768 2024-08-09T04:19:51Z Abstract Aim Poa annua L. (annual bluegrass) is presently the sole invasive vascular plant species to have successfully established in Maritime Antarctica, where it poses a significant conservation threat to native plant species. However, the reasons for its success in the region have yet to be established. Here, we determined whether the invasiveness of P. annua , and its competitiveness with the native Antarctic hairgrass Deschampsia antarctica , is influenced by symbioses formed with seed fungal endophytes, and whether plants derived from seeds from four global regions differ in their performance. Locations Four regions (Maritime Antarctica, sub‐Antarctica, South America and Europe). Methods Endophyte frequency was measured in P. annua seeds collected from the four regions. The germination, survival, biomass accumulation, flowering and competitiveness with D. antarctica of P. annua plants grown from endophyte‐uncolonised and uncolonised seeds was determined in the laboratory. The effects of endophytes on P. annua seed germination and survival and seedling osmoprotection were also assessed in the Maritime Antarctic natural environment using locally‐sourced seeds. Results 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. Main Conclusions 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 ... Article in Journal/Newspaper Antarc* Antarctic Antarctica Wiley Online Library Antarctic Diversity and Distributions 29 11 1432 1444 |
institution |
Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
Abstract Aim Poa annua L. (annual bluegrass) is presently the sole invasive vascular plant species to have successfully established in Maritime Antarctica, where it poses a significant conservation threat to native plant species. However, the reasons for its success in the region have yet to be established. Here, we determined whether the invasiveness of P. annua , and its competitiveness with the native Antarctic hairgrass Deschampsia antarctica , is influenced by symbioses formed with seed fungal endophytes, and whether plants derived from seeds from four global regions differ in their performance. Locations Four regions (Maritime Antarctica, sub‐Antarctica, South America and Europe). Methods Endophyte frequency was measured in P. annua seeds collected from the four regions. The germination, survival, biomass accumulation, flowering and competitiveness with D. antarctica of P. annua plants grown from endophyte‐uncolonised and uncolonised seeds was determined in the laboratory. The effects of endophytes on P. annua seed germination and survival and seedling osmoprotection were also assessed in the Maritime Antarctic natural environment using locally‐sourced seeds. Results 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. Main Conclusions 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 ... |
author2 |
Fondo Nacional de Desarrollo Científico y Tecnológico |
format |
Article in Journal/Newspaper |
author |
Molina‐Montenegro, Marco A. Ballesteros, Gabriel I. Acuña‐Rodríguez, Ian S. Pertierra, Luis R. Greve, Michelle Richardson, David M. Convey, Peter Biersma, Elisabeth M. Goodall‐Copestake, William P. Newsham, Kevin K. |
spellingShingle |
Molina‐Montenegro, Marco A. Ballesteros, Gabriel I. Acuña‐Rodríguez, Ian S. Pertierra, Luis R. Greve, Michelle Richardson, David M. Convey, Peter Biersma, Elisabeth M. Goodall‐Copestake, William P. Newsham, Kevin K. The “Trojan horse” strategy: Seed fungal endophyte symbiosis helps to explain the invasion success of the grass, Poa annua, in Maritime Antarctica |
author_facet |
Molina‐Montenegro, Marco A. Ballesteros, Gabriel I. Acuña‐Rodríguez, Ian S. Pertierra, Luis R. Greve, Michelle Richardson, David M. Convey, Peter Biersma, Elisabeth M. Goodall‐Copestake, William P. Newsham, Kevin K. |
author_sort |
Molina‐Montenegro, Marco A. |
title |
The “Trojan horse” strategy: Seed fungal endophyte symbiosis helps to explain the invasion success of the grass, Poa annua, in Maritime Antarctica |
title_short |
The “Trojan horse” strategy: Seed fungal endophyte symbiosis helps to explain the invasion success of the grass, Poa annua, in Maritime Antarctica |
title_full |
The “Trojan horse” strategy: Seed fungal endophyte symbiosis helps to explain the invasion success of the grass, Poa annua, in Maritime Antarctica |
title_fullStr |
The “Trojan horse” strategy: Seed fungal endophyte symbiosis helps to explain the invasion success of the grass, Poa annua, in Maritime Antarctica |
title_full_unstemmed |
The “Trojan horse” strategy: Seed fungal endophyte symbiosis helps to explain the invasion success of the grass, Poa annua, in Maritime Antarctica |
title_sort |
“trojan horse” strategy: seed fungal endophyte symbiosis helps to explain the invasion success of the grass, poa annua, in maritime antarctica |
publisher |
Wiley |
publishDate |
2023 |
url |
http://dx.doi.org/10.1111/ddi.13768 https://onlinelibrary.wiley.com/doi/pdf/10.1111/ddi.13768 |
geographic |
Antarctic |
geographic_facet |
Antarctic |
genre |
Antarc* Antarctic Antarctica |
genre_facet |
Antarc* Antarctic Antarctica |
op_source |
Diversity and Distributions volume 29, issue 11, page 1432-1444 ISSN 1366-9516 1472-4642 |
op_rights |
http://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.1111/ddi.13768 |
container_title |
Diversity and Distributions |
container_volume |
29 |
container_issue |
11 |
container_start_page |
1432 |
op_container_end_page |
1444 |
_version_ |
1809824935527317504 |