Intercontinental movement of exotic fungi on decorative wood used in aquatic and terrestrial aquariums

Scientific Reports, Journal Year: 2025, Volume and Issue: 15(1)

Published: March 17, 2025

The intercontinental movement of fungi or fungus-like organisms brings nonnative species into areas where they may become invasive pathogens trees and other plants. In the past century, many examples such as Dutch elm disease, sudden oak death, laurel wilt, others have resulted in large economic losses ecological disasters. Although various safeguards to prevent transport potential been effect, new avenues introduction occurred causing disease outbreaks. This study examined wood shipped from Asia that is used for decorative purposes aquatic terrestrial aquariums. From 44 imported samples, 202 cultures representing 123 different fungal taxa were obtained identified using molecular methods. These included 31 not previously reported United States, 21 plant pathogens, 37 decay 24 with a 97% sequence match less known isolates suggesting these are unknown species. results demonstrate aquariums harbor numbers diverse remain viable during shipping storage. currently being native, pose serious biosecurity threats States countries around world.

Language: Английский

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A qPCR assay for the detection of Phytophthora abietivora, an emerging pathogen on fir species cultivated as Christmas trees

PLoS ONE, Journal Year: 2025, Volume and Issue: 20(4), P. e0320680 - e0320680

Published: April 2, 2025

Emerging species of the Phytophthora genus are among most important threats to global plant biodiversity, horticulture and trade. For instance, root rot (PRR) Christmas trees, mainly Fraser ( Abies fraseri ) balsam balsamea firs, is responsible for an average 10% observed diseased trees in plantations. Diagnosing PRR involves isolation followed by morphological molecular identification causal agents. However, these methods rarely adapted larger scale monitoring such as situ detection. applications, detection environmental DNA (eDNA) provides fast high-throughput results needed. abietivora was associated with firs spp.) cultivated province Québec (Canada). This study focused on developing a sensitive specific qPCR assay targeting P. validating its efficiency extracted from soil roots. A set primers probe designed this assay, parameters limit (LOD 95% quantification (LOQ) were measured. The tested obtained healthy-looking symptomatic firs. shown be semi-specific because it cross-reacted europaea three other phylogenetically close species, but deemed context LOD estimated at 10 copies per reaction (C q 35.7) LOQ 33 oospores gram soil. Out 488 samples soil, 68 positive which 42 (61.7%) trees. Only slight overlap (3 out 7 samples) previously baiting . will useful rapid diagnostics infected prospecting tool better characterize natural distribution dissemination disease.

Language: Английский

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Encapsulated Thuja plicata essential oil into biopolymer matrix as a potential pesticide against Phytophthora root pathogens

International Journal of Biological Macromolecules, Journal Year: 2024, Volume and Issue: 278, P. 134684 - 134684

Published: Aug. 30, 2024

Language: Английский

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Phylogenetic and pathogenic characterization of Phytophthora species associated with decline of horticultural crops in high humid tropic region of Western Ghats, India

Physiological and Molecular Plant Pathology, Journal Year: 2024, Volume and Issue: 133, P. 102355 - 102355

Published: July 9, 2024

Language: Английский

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<em>Pythium banihashemianum </em>sp. nov. and <em>Globisporangium izadpanahii </em>sp. nov. Two New Oomycete Species from Rice Paddies in Iran

Published: March 25, 2024

Investigation of oomycete diversity in rice paddies Fars Province Iran led to the identification two new Pythium sensu lato (s.l.) species as Globisporangium izadpanahii sp. nov. and banihashemianum The was based on morphological physiological features well phylogenetic analysis nuclear (ITS βtub) mitochondrial (cox1 cox2) loci using Bayesian inference Maximum Likelihood. A major characteristic G. production globose hyphal swellings; this did not produce vesicles zoospores. present paper describes formally these defines their relationships with other congeneric species. According multiple gene genealogy analysis, grouped former clade G s.l. closely related both nagaii recently described coniferarum. second species, designated P. banihashemianum, stricto B according shared an ancestor plurisporium. In pathogenicity tests seedlings, isolates were highly pathogenic causing severe root crown rot, while pathogenic.

Language: Английский

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Oomycete communities in lowland tropical forest soils vary in species abundance and comprise saprophytes and pathogens of seeds and seedlings of multiple plant species

American Journal of Botany, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 13, 2024

The soils in lowland tropics are teeming with microbial life, which can impact plant community structure and diversity through plant-soil feedbacks. While bacteria fungi have been the focus of most studies tropics, oomycetes may an outsized effect on seed seedling health survival, given their affinity for moister, warmer environments.

Language: Английский

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Pythium banihashemianum sp. nov. and Globisporangium izadpanahii sp. nov.: Two New Oomycete Species from Rice Paddies in Iran

Journal of Fungi, Journal Year: 2024, Volume and Issue: 10(6), P. 405 - 405

Published: June 5, 2024

An investigation into oomycete diversity in rice paddies of Fars Province Iran led to the identification two new Pythium sensu lato (s.l.) species as Globisporangium izadpanahii sp. nov. and banihashemianum The was based on morphological physiological features well phylogenetic analysis nuclear (ITS βtub) mitochondrial (cox1 cox2) loci using Bayesian inference Maximum Likelihood. present paper formally describes these defines their relationships with other congeneric species. According multiple gene genealogy analysis, G. grouped (formerly, clade G s.l.) closely related both nagaii recently described coniferarum. second species, designated P. nov., stricto B and, according shared an ancestor plurisporium. production globose hyphal swellings a major characteristic which did not produce vesicles zoospores. In pathogenicity tests seedlings, isolates were highly pathogenic caused severe root crown rot, while pathogenic.

Language: Английский

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Exploring eco-friendly solutions for Phytophthora disease management: harnessing the anti-oomycete potential of a fermented lemon waste formulation

Journal of Agriculture and Food Research, Journal Year: 2024, Volume and Issue: 17, P. 101227 - 101227

Published: May 27, 2024

Phytophthora species pose significant challenges to agricultural and natural ecosystems due their ecological plasticity ability cause diseases of various plant species. Effective control requires integrated approaches that consider specific agronomic practices, environmental factors, the rationale use chemicals. In response need for eco-friendly alternatives, this study investigated anti-oomycete potential a formulation derived from fermentation lemon wastes by Lactiplantibacillus plantarum ('bioact-LM'). vitro assays demonstrated efficacy bioact-LM against multiple species, both through direct contact inhibition release volatile organic compounds (VOCs). vivo assessments on orange apple fruits further confirmed effectiveness in reducing rot severity. These findings suggest is promising as sustainable alternative synthetic fungicide disease management, highlighting importance exploring solutions scenario restriction conventional chemical methods.

Language: Английский

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Insights into the population dynamics of phytophthora species associated with arecanut fruit rot disease

Physiological and Molecular Plant Pathology, Journal Year: 2024, Volume and Issue: 133, P. 102334 - 102334

Published: June 10, 2024

Language: Английский

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Phytophthora in urban tree planting stock: Are we managing the risk to the urban forest and natural ecosystems?

Plant Pathology, Journal Year: 2024, Volume and Issue: 73(8), P. 2030 - 2042

Published: June 23, 2024

Abstract The oomycete genus Phytophthora includes plant pathogens that pose significant threats to agricultural systems, natural ecosystems and urban forests. Urban forests are increasingly recognized for their role in mitigating climate change impacts greening initiatives underway worldwide. However, research suggests the forest is also a reservoir of diversity, acting as bridgeheads introduction these into production ecosystems. source linked anthropogenic factors, with live trade primary pathway. This study focused on incidence diversity amenity tree nursery stock eastern Australia, primarily New South Wales, one from Victoria. findings revealed high destined projects, having an overall positive rate 22.1%, individual nurseries ranging 2.5% 32%. detected 13 described species considered polyphagous woody hosts three lineages potentially represent novel species. In addition, detection P . mediterranea heterospora first reports biosecurity concern. highlights substantial risk associated beyond. These underscore urgent need strictly implement clean management practices reduce economic environmental risks programmes.

Language: Английский

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