Abstract
Acacia longifolia , a species native to Australia, is an aggressive invasive in Mediterranean-type ecosystems worldwide. Its success in diverse habitats, expanding from coastal dunes to forests, is often attributed to its ability to establish interactions with a variety of microbes, including bacteria and fungi. This study investigates the seed and root-nodule microbiomes of A. longifolia to understand the roles these microbial communities play in its adaptation and invasive behaviour. Using high-throughput sequencing, we characterized the bacteriome and mycobiome associated with the plant, considering nodules and seeds, and the surrounding soil in three different locations in Portugal with different climate conditions (North, Center and South), and a comparison between two different habitats (Dune versus Forest). Our results reveal a dynamic interaction between A. longifolia and its microbial partners, supporting the importance of these plant-microbe interactions in nutrient acquisition and stress tolerance for A. longifolia , ultimately leading to their impact in an invaded ecosystem. The seed microbiome of A. longifolia was less diverse than for nodules but with more functions assigned, while nodules showed a broader diversity, assigned to more specific functions. Here we provide evidence for the role of seed microbiota in germination and seed-to-seedling transition along with the beneficial role of nodulation in development and seedling-to-sapling switch. We also propose a local signature for microbial communities as we found a dissimilarity in microbial partners when considering habitat, with dune communities showing a functional plasticity, aiding A. longifolia to cope in such nutrient-limiting environment. For forests, functions more related with plant and microbe associations are evidenced, possibly facilitating interspecific competition. These findings contribute to an understanding of the plant-microbe interactions and dynamics that underpin A. longifolia ecological success as an invasive plant.
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Claims 9
Claim · model-written summary
The seed microbiome of Acacia longifolia was less diverse than the nodule microbiome.
- Taxon
- Acacia longifolia
Acacia longifoliae0 - Interactor
- seed microbiomee1symbiont
- Outcome
- seed microbiomee1
- Direction
- less diversee1
- Comparator
- nodulese1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Acacia longifolia , a species native to Australia”
e1“The seed microbiome of A. longifolia was less diverse than for nodules but with more functions assigned, while nodules showed a broader diversity, assigned to more specific functions”
Claim · model-written summary
The seed microbiome of Acacia longifolia had more assigned functions.
- Taxon
- Acacia longifoliaAcacia longifoliae0
- Interactor
- seed microbiomee1symbiont
- Outcome
- functions assignede1
- Direction
- moree1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Acacia longifolia , a species native to Australia”
e1“The seed microbiome of A. longifolia was less diverse than for nodules but with more functions assigned, while nodules showed a broader diversity, assigned to more specific functions”
Claim · model-written summary
The nodule microbiome of Acacia longifolia showed a broader diversity than the seed microbiome.
- Taxon
- Acacia longifoliaAcacia longifoliae0
- Organ / stage
- nodulese1
- Outcome
- diversitye1
- Direction
- broadere1
- Comparator
- seed microbiomee1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Acacia longifolia , a species native to Australia”
e1“The seed microbiome of A. longifolia was less diverse than for nodules but with more functions assigned, while nodules showed a broader diversity, assigned to more specific functions”
Claim · model-written summary
The nodule microbiome of Acacia longifolia had more specific assigned functions.
- Taxon
- Acacia longifoliaAcacia longifoliae0
- Organ / stage
- nodulese1
- Outcome
- functions assignede1
- Direction
- more specifice1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Acacia longifolia , a species native to Australia”
e1“The seed microbiome of A. longifolia was less diverse than for nodules but with more functions assigned, while nodules showed a broader diversity, assigned to more specific functions”
Claim · model-written summary
Seed microbiota are associated with germination and seed-to-seedling transition of Acacia longifolia.
- Taxon
- Acacia longifoliaAcacia longifoliae0
- Interactor
- seed microbiotae2symbiont
- Outcome
- germination and seed-to-seedling transitione2
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Acacia longifolia , a species native to Australia”
e2“Here we provide evidence for the role of seed microbiota in germination and seed-to-seedling transition”
Claim · model-written summary
Nodulation is associated with development and the seedling-to-sapling switch of Acacia longifolia.
- Taxon
- Acacia longifoliaAcacia longifoliae0
- Treatment
- nodulatione3
- Outcome
- development and seedling-to-sapling switche3
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Acacia longifolia , a species native to Australia”
e3“the beneficial role of nodulation in development and seedling-to-sapling switch”
Claim · model-written summary
Microbial partners of Acacia longifolia differ between dune and forest habitats.
- Taxon
- Acacia longifoliaAcacia longifoliae0
- Outcome
- microbial partnerse4
- Setting
- Dune versus Foreste5
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Acacia longifolia , a species native to Australia”
e4“we found a dissimilarity in microbial partners when considering habitat”
e5“a comparison between two different habitats (Dune versus Forest)”
Claim · model-written summary
Dune microbial communities show functional plasticity that may help Acacia longifolia cope with nutrient-limiting conditions.
- Taxon
- Acacia longifoliaAcacia longifoliae0
- Outcome
- functional plasticitye6
- Qualifier
- aiding A. longifolia to cope in such nutrient-limiting environmente6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Acacia longifolia , a species native to Australia”
e6“dune communities showing a functional plasticity, aiding A. longifolia to cope in such nutrient-limiting environment”
Claim · model-written summary
In forests, microbial functions more related to plant and microbe associations are evidenced, possibly facilitating interspecific competition.
- Taxon
- Acacia longifoliaAcacia longifoliae0
- Outcome
- functions more related with plant and microbe associationse7
- Qualifier
- possibly facilitating interspecific competitione7
- Setting
- forestse7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Acacia longifolia , a species native to Australia”
e7“For forests, functions more related with plant and microbe associations are evidenced, possibly facilitating interspecific competition”