Lineage overwhelms environmental conditions in determining rhizosphere bacterial community structure in a cosmopolitan invasive plant

Nature Communications, Год журнала: 2017, Номер 8(1)

Опубликована: Авг. 30, 2017

Plant-microbe interactions play crucial roles in species invasions but are rarely investigated at the intraspecific level. Here, we study these three lineages of a globally distributed plant, Phragmites australis. We use field surveys and common garden experiment to analyze bacterial communities rhizosphere P. australis stands from native, introduced, Gulf determine lineage-specific controls on bacteria. show that within-lineage similar, distinct among lineages, which is consistent with our results complementary experiment. Introduced have lower abundances pathways involved antimicrobial biosynthesis degradation, suggesting exposure enemy attack than native lineages. However, lineage not dictate individual plant growth conclude for determination both fitness.Environmental factors often outweigh host heritable structuring host-associated microbiomes. Bowen et al. australis, invasive plant.

Язык: Английский

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Management of invasive Phragmites australis in the Adirondacks: a cautionary tale about prospects of eradication

Biological Invasions, Год журнала: 2017, Номер 20(1), С. 59 - 73

Опубликована: Июль 17, 2017

Abstract Invasive plant management (largely mechanical and chemical) consumes an ever-increasing portion of budgets for land organizations, but metrics success, other than extent areas treated or resources expended is rarely available. Here we assess success managing 346 populations invasive Phragmites australis (range 0.36–4134 m 2 ; cover 37–75%) in the Adirondack Park upstate New York, USA. We began by treating 18 patches 2010 using herbicide; gradually adding annually intermittently a total 334 end project period. monitored each population if P. was present mapped its spatial estimated cover. considered eradicated when live stems were absent from site at least three consecutive years. Our treatments reduced size eradication achieved 104 294 sites. However, probability eradicating over 7-year timeframe 0.83 smallest (0.36 ), whereas medium (45 ) large (>3000 decreased to 0.26 0.02, respectively. results question efficacy with goal eradication. urge conservation organizations clearly articulate objectives beyond short-term suppression target plants promote accountability providing quantitative measurements outcomes.

Язык: Английский

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Intraspecific variation in indirect plant–soil feedbacks influences a wetland plant invasion

Ecology, Год журнала: 2018, Номер 99(6), С. 1430 - 1440

Опубликована: Май 17, 2018

Plant-soil feedbacks (PSFs) influence plant competition via direct interactions with pathogens and mutualists or indirectly apparent competition/mutualisms (i.e., spillover to co-occurring plants) soil legacy effects. It is currently unknown how intraspecific variation in PSFs interacts the environment (e.g., nutrient availability) between native invasive plants. We conducted a fully crossed multi-factor greenhouse experiment determine effects of Phragmites australis rhizosphere biota, interspecific competition, availability on biomass replicate populations from one two lineages common reed (P. australis) single lineage smooth cordgrass (Spartina alterniflora). Harmful biota consistently dominated involving all three P. lineages, reducing by 10%. Indirect spillover) reduced S. alterniflora 7%, whereas increased 6%. Interestingly, interacted weaken their respective impacts alterniflora, they exerted synergistic negative australis. decreased when grown alone legacy), but australis, suggesting that recruits harmful generalist facilitates mutualism). Soil also although it remained competitively inferior across treatments. Competitive responses nutrients did not differ among indicating deposition may be key drivers invasion North America. Although appear have no impact success America, indirect legacies occur important implications for species restoration invaded habitats. Our study integrates multiple factors linked invasions, highlighting are likely commonplace influencing community dynamics impacts.

Язык: Английский

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Invasion of Nipponaclerda biwakoensis (Hemiptera: Aclerdidae) and Phragmites australis die-back in southern Louisiana, USA

Biological Invasions, Год журнала: 2018, Номер 20(10), С. 2739 - 2744

Опубликована: Май 15, 2018

Язык: Английский

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Historical biogeography and phylogeny of Cucurbita: Insights from ancestral area reconstruction and niche evolution

Molecular Phylogenetics and Evolution, Год журнала: 2018, Номер 128, С. 38 - 54

Опубликована: Июль 21, 2018

Язык: Английский

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Intraspecific and biogeographical variation in foliar fungal communities and pathogen damage of native and invasivePhragmites australis

Global Ecology and Biogeography, Год журнала: 2020, Номер 29(7), С. 1199 - 1211

Опубликована: Март 26, 2020

Abstract Aim Recent research has highlighted that the relationship between species interactions and latitude can differ native invasive plant taxa, generating biogeographical heterogeneity in community resistance to invasions. In first study with foliar pathogens, we tested whether co‐occurring lineages of common reed ( Phragmites australis ) exhibit non‐parallel latitudinal gradients fungal communities, pathogen susceptibility damage, these patterns influence success invasion. Location North America. Time period 2015–2017. Major taxa studied Perennial grass P. . Methods We surveyed 35 field populations, spanning 17° comprising four phylogeographical lineages, including one endemic America from Europe. For each population, quantified percentage leaf damage cultured fungi diseased leaves, which identified using molecular tools. To assess had a genetic basis, inoculated plants 73 populations putative pathogens complementary garden experiment measured (i.e., area). Results isolated 84 taxa. lineage influenced composition but not diversity. Despite European being least susceptible three experiment, was similar providing no evidence release contributes Genetically based observed were isolate specific obscured by local environmental conditions field, where threefold higher for northern compared southern regardless lineage. Main conclusions Our results highlight host genetically strongly communities susceptibility, do translate field.

Язык: Английский

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Host specificity and risk assessment of Archanara geminipuncta and Archanara neurica, two potential biocontrol agents for invasive Phragmites australis in North America

Biological Control, Год журнала: 2018, Номер 125, С. 98 - 112

Опубликована: Май 30, 2018

Invasive Phragmites australis is widespread in North America and despite decades of management large annual expenditures (>5 million US$) using physical chemical means, local populations the species range are expanding. Allowing continued expansion does not only threaten native wetland biota but also an endemic American subspecies americanus. We used extensive multi-pronged investigations Europe to evaluate host specificity impact two European stem mining noctuid moths, Archanara geminipuncta A. neurica. Both moth specific genus both show a very strong, absolute, preference for invasive P. over No-choice tests or small cages provided inconsistent results, moths showed consistently high preferences introduced australis. Open field multiple-choice oviposition affirmed this; laid 6.5% their eggs on The further safeguarded by increased mortality larvae when on, developing southern US, particularly along Gulf Mexico, occur outside climate these temperate species. consider potential threats americanus demography due neurica attack be far smaller than allowing continue. therefore recommend release biocontrol agents America.

Язык: Английский

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Multiple Potential Stressors and Dieback of Phragmites australis in the Mississippi River Delta, USA: Implications for Restoration

Wetlands, Год журнала: 2020, Номер 40(6), С. 2247 - 2261

Опубликована: Сен. 5, 2020

Язык: Английский

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Grasses as appropriate targets in weed biocontrol: is the common reed, Phragmites australis, an anomaly?

BioControl, Год журнала: 2018, Номер 63(3), С. 391 - 403

Опубликована: Фев. 20, 2018

Язык: Английский

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Evidence does not support the targeting of cryptic invaders at the subspecies level using classical biological control: the example of Phragmites

Biological Invasions, Год журнала: 2019, Номер 21(8), С. 2529 - 2541

Опубликована: Июнь 4, 2019

Язык: Английский

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