Leaf litter of the invasive <i>Casuarina equisetifolia</i> decomposes at the same rate as that of native woody species on oceanic islands but releases more nitrogen

Hata, Kenichiro; Kato, Hirotaka; Kachi, Naoki

doi:10.1111/j.1365-3180.2012.00945.x

Cited by 13 publications

(7 citation statements)

References 30 publications

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“…Microbial-aided decomposition of exotic litter of some invaders may lead to higher release of nutrients upon compared with native litter as a consequence of greater organic C in soil ( Ehrenfeld et al 2005 ; Hata et al . 2012 ; Kaur et al 2012 ; Meisner et al .…”

Section: Indirect Plant–soil Feedbacksmentioning

confidence: 99%

Linkages of plant-soil feedbacks and underlying invasion mechanisms

Inderjit

Cahill

2015

AoB PLANTS

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Plant-soil feedbacks including soil pathogens, mycorrhizal costs/benefits and nutrient dynamics impact invasion directly or through interactions with other ecological processes. Here we describe how the mechanisms by which soil community processes influence plant growth overlap with several known and well-described mechanisms of plant invasion. We need to focus on the underlying mechanisms of soil feedbacks, and how they link to invasion along temporal scale.

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Section: Indirect Plant–soil Feedbacksmentioning

confidence: 99%

Linkages of plant-soil feedbacks and underlying invasion mechanisms

Inderjit

Cahill

2015

AoB PLANTS

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“…Casuarina equisetifolia has been shown to reduce insect species richness and alter species composition (Sugiura et al 2013). A recent study conducted by Hata et al (2012) on Chichijima Island in the subtropical Ogasawara (Bonin) Islands showed that litter decomposition of C. equisetifolia may alter nitrogen cycling in invaded forest ecosystems.…”

Section: Impacts Of Casuarinas In Their New Rangesmentioning

confidence: 99%

Casuarina: biogeography and ecology of an important tree genus in a changing world

2013

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Important insights on the invasion ecology of woody plants are emerging from the study of model groups, but it is important to test how widely such results can be generalised. We examined whether drivers of introduction and invasion in the genus Casuarina are similar to those identified for other groups. We reviewed the literature, mapped current global distributions, and modelled the potential global distribution of the genus. We assessed the rationale behind introductions, impacts of invasions, and the evolution of management approaches. Casuarinas have been introduced to about 150 countries. Ten of the 14 species in the genus have been introduced outside their native ranges, but only three species are recorded as naturalized or invasive (C. equisetifolia, C. cunninghamiana and C. glauca). Species with large native ranges are more likely to be introduced, and the three invasive species have the largest native ranges and the most records of introduction. There were no clear relationships between life-history traits (e.g. seed mass, plant height, or resprouting ability) and the extent of invasion. About 8 % of the Earth's land surface is potentially suitable for casuarinas and largescale plantings in some climatically suitable areas have not yet resulted in large-scale invasions; there is a substantial global Casuarina invasion debt. Experiences in Florida and the Mascarene Islands highlight that casuarinas have the potential to transform ecosystems with significant control costs. The challenge is to develop management approaches that minimise the impacts of invasions while preserving economic, environmental and cultural values of species in their introduced ranges.

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“…Invasion by A. adenophora did not affect gene expression levels associated with microbial nitrogen fixation, ammonia oxidation, and nitrite and nitrate reduction in the invaded soil. There was no evidence for the increased expression of N metabolic genes, which may also reflect high amounts of organic C (litter) present in the RSM of A. adenophora (Table 1), where its decomposition may release organic N in higher amounts than from either native plants, as reported for other invasive plant species (Ehrenfeld, Ravit & Elgersma, 2005;Hata, Kato & Kachi, 2012;Kaur et al, 2012;Meisner et al, 2012;Li et al, 2017). This is supported by evidence that more genes are associated with carbohydrate metabolism in the RSM of A. adenophora than in those of the native plant species.…”

Section: Discussionmentioning

confidence: 84%

Compositional and functional profiling of the rhizosphere microbiomes of the invasive weed Ageratina adenophora and native plants

Xia

Dong

et al. 2021

PeerJ

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The rhizosphere soil microbiome (RSM) plays an important role in the nutritional metabolism of the exotic weed Ageratina adenophora. However, our understanding of the composition and metabolic activity of this microbiome is limited. We used high-throughput sequencing of bacterial 16S rRNA genes and fungal internal transcribed spacer fragments in combination with transcriptome analysis to compare the composition and metabolic features of the RSMs of A. adenophora and the native plant species Artemisia indica and Imperata cylindrica. A. indica cohabitates with the weed and I. cylindrica grows in uninvaded soil areas. We found fungi belonging to the phyla Ascomycota and Basidiomycota and bacteria belonging to the phyla Proteobacteria, Acidobacteria and Bacteroidetes were highly abundant in the RSMs of A. adenophora and both native plant species. The RSM of A. adenophora differed to varying degrees in the relative abundances of bacterial and fungal phyla and genera, and in levels of expression of functional genes from those of both the native species. The RSM of A. adenophora was more metabolically active than both of these, as indicated by marked increases in the expression levels of genes associated with cell wall, membrane, and envelope biogenesis, energy production and conversion, and the transport and metabolism of carbohydrates, amino acids, coenzymes, nucleotides, and secondary metabolites. Ascomycota and Basidiomycota contributed most significantly to these differences. The composition and metabolic activities of A. adenophora RSM differed less to the RSM of A. indica than to the RSM of I. cylindrica. Fungal communities contributed most to the metabolic genes in the RSM of A. adenophora. These included the arbuscular mycorrhizal fungi Glomeromycota. The different relative abundances in the RSMs of these three plant populations may explain why A. adenophora is more successful in colonizing soils than the two native populations.

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Leaf litter of the invasive Casuarina equisetifolia decomposes at the same rate as that of native woody species on oceanic islands but releases more nitrogen

Cited by 13 publications

References 30 publications

Linkages of plant-soil feedbacks and underlying invasion mechanisms

Linkages of plant-soil feedbacks and underlying invasion mechanisms

Casuarina: biogeography and ecology of an important tree genus in a changing world

Compositional and functional profiling of the rhizosphere microbiomes of the invasive weed Ageratina adenophora and native plants

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