By interacting organism as written › A. psidii

Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Eumundi, Noosa, Woondum and Silver Valley germplasm showed superior resistance across assessments and sites.

Taxon: Lemon myrtlet0
Interactor: A. psidiiAustropuccinia psidiie0pathogen
Outcome: superior resistance to A. psidiie0
Direction: superiore0
Setting: southern Queenslande0

Verbatim

e0
“Germplasm from Eumundi, Noosa and Woondum (southern Queensland), and Silver Valley (northern Queensland), showed superior resistance to A. psidii across assessments and trial sites.”
✓ located verbatim in the source · abstract, characters 1239–1420

t0
“lemon myrtle (Backhousia citriodora) to myrtle rust (Austropuccinia psidii)”
✓ located verbatim in the source · title, characters 18–93

Title

The resistance of lemon myrtle (Backhousia citriodora) to myrtle rust (Austropuccinia psidii)

Emily Kathryn Lancaster; Geoffrey Samuel Pegg; R. Andrew Hayes; et al. Australasian Plant Pathology 2026. doi:10.1007/s13313-026-01145-7

Other claims from this paper (5)

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Several bacterial isolates reduced spore germination of Austropuccinia psidii in vitro.

Taxon: Metrosideros excelsaMetrosideros excelsae1
Treatment: bacterial isolatese0
Interactor: A. psidiiAustropuccinia psidiie0pathogen
Second interactor: bacterial isolatese0biocontrol_agent
Outcome: A. psidii spore germinatione0
Direction: reducede0
Setting: in vitroe0

Not reportedComparator

Verbatim

e0
“several bacterial isolates reduced A. psidii spore germination in vitro”
✓ located verbatim in the source · abstract, characters 1048–1119

e1
“Metrosideros excelsa (Myrtaceae)”
✓ located verbatim in the source · abstract, characters 242–274

Title

Effects of fungicides on the beneficial seed-borne microbiome and seedling development of a long-lived myrtaceae tree species

Vladislav Kholostiakov; Bruce Burns; Hayley Ridgway; et al. Symbiosis 2025. doi:10.1007/s13199-025-01064-z

Other claims from this paper (7)

Intervention effect Seed-borne Bacillus and Priestia suppressed seed-borne fungi, both pathogenic and endophytic, with average inhibition rates of 74%.
Intervention effect Endophytic Methylobacterium and Mycolicibacterium facilitated fungal growth.
Intervention effect Fungicides may adversely impact beneficial seed-borne bacteria.
Intervention effect Antimicrobial seed treatment also suppressed the growth of the corresponding seedlings.
Intervention effect Inoculating treated seeds with beneficial seed-borne endophytes increased seedling shoot biomass up to three times.
Intervention effect Kocuria significantly enhanced root development.
Intervention effect Penicillium significantly enhanced root development.

Observationobservedoriginal resultmeasured

Claim · model-written summary

ITS and LSU sequences identified the fungus as A. psidii.

Taxon: MyrtaceaeMyrtaceaet1
Interactor: A. psidiiAustropuccinia psidiie6pathogen
Outcome: fungus as A. psidiie6

Verbatim

t1
“Myrtaceae”
✓ located verbatim in the source · title, characters 69–78

e6
“Thus, ITS and LSU sequences confirms the fungus as A. psidii”
✓ located verbatim in the source · abstract, characters 1819–1879

Title

First Report of Austropuccinia psidii Causing Myrtle Rust on Outdoor Myrtaceae in Europe

Ana Paula Ramos; César Garcia; Ireneia Melo; et al. Plant Disease 2025. doi:10.1094/pdis-07-25-1433-pdn

Other claims from this paper (10)

Observation Rust symptoms were observed on Myrtus communis in several Lisbon gardens.
Observation Disease prevalence was 50% across the surveyed gardens, with no symptoms in five other gardens.
Observation Affected plants had 100% of new shoots affected.
Observation No symptoms were observed on other Myrtaceae.
Observation Urediniospores of the fungus measured 18.2–21.7–26.7 × 12.1–16.6–21.7 μm.
Observation Flow cytometry gave a genome size of 1.144 Gb/1C for the fungus.
Intervention effect Inoculated M. communis developed leaf tumefactions after eight days, whereas control plants stayed asymptomatic.
Observation Uredinia erupted 10 days after inoculation of M. communis.
Observation Uredinia from inoculated plants had characteristics identical to those of isolate ApTA02.
Observation This is the first report of A. psidii on outdoor Myrtaceae in Europe.

Observationobservedoriginal resultmeasured

Claim · model-written summary

This is the first report of A. psidii on outdoor Myrtaceae in Europe.

Taxon: MyrtaceaeMyrtaceaet1
Interactor: A. psidiiAustropuccinia psidiie1pathogen
Outcome: first report of A. psidii on outdoor Myrtaceaee1
Setting: Europee1

Verbatim

t1
“Myrtaceae”
✓ located verbatim in the source · title, characters 69–78

e1
“This is the first report of A. psidii on outdoor Myrtaceae in Europe”
✓ located verbatim in the source · abstract, characters 3032–3100

Title

First Report of Austropuccinia psidii Causing Myrtle Rust on Outdoor Myrtaceae in Europe

Ana Paula Ramos; César Garcia; Ireneia Melo; et al. Plant Disease 2025. doi:10.1094/pdis-07-25-1433-pdn

Other claims from this paper (10)

Observation Rust symptoms were observed on Myrtus communis in several Lisbon gardens.
Observation Disease prevalence was 50% across the surveyed gardens, with no symptoms in five other gardens.
Observation Affected plants had 100% of new shoots affected.
Observation No symptoms were observed on other Myrtaceae.
Observation Urediniospores of the fungus measured 18.2–21.7–26.7 × 12.1–16.6–21.7 μm.
Observation ITS and LSU sequences identified the fungus as A. psidii.
Observation Flow cytometry gave a genome size of 1.144 Gb/1C for the fungus.
Intervention effect Inoculated M. communis developed leaf tumefactions after eight days, whereas control plants stayed asymptomatic.
Observation Uredinia erupted 10 days after inoculation of M. communis.
Observation Uredinia from inoculated plants had characteristics identical to those of isolate ApTA02.

Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Nine leaf fungal isolates inhibited germination of Austropuccinia psidii spores in vitro.

Taxon: Rhodamnia rubescensRhodamnia rubescenst0
Interactor: A. psidiiAustropuccinia psidiie0pathogen
Second interactor: Nemania, Corynespora, Cladosporium, Pestalotiopsis, Quambalaria, Kalmanozyma, and ConiothyriumCladosporiumPestalotiopsisCorynesporaConiothyriumNemaniaQuambalariaKalmanozymae0biocontrol_agent
Outcome: germination of A. psidii sporese0
Direction: inhibite0
Value: nine isolatese0

Verbatim

t0
“Rhodamnia rubescens”
✓ located verbatim in the source · title, characters 69–88

e0
“Of the 143 isolates obtained from both leaf types, germinating spores from nine isolates from the genera Nemania, Corynespora, Cladosporium, Pestalotiopsis, Quambalaria, Kalmanozyma, and Coniothyrium were found to inhibit the germination of A. psidii spores in vitro”
✓ located verbatim in the source · abstract, characters 699–965

Title

Screening leaf-associated fungi from the critically endangered plant Rhodamnia rubescens suggests biocontrol potential against myrtle rust

Karishma D Kuar; Ashish Kumar Sarker; Isobel Nelson; et al. Journal of Applied Microbiology 2025. doi:10.1093/jambio/lxaf293

Other claims from this paper (1)

Association Biocontrol activity of recovered isolates was not linked to disease degree on Rhodamnia rubescens leaves.

Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

Diseased leaf area increased from 8% at week 2 to 95% at week 20 after inoculation.

Taxon: Metrosideros excelsaMetrosideros excelsat0
Interactor: A. psidiiAustropuccinia psidiie0pathogen
Outcome: diseased leaf areae0
Direction: rosee0
Value: 8% in week 2 to 95% in week 20e0

Verbatim

e0
“The diseased leaf area rose from 8% in week 2 to 95% in week 20 after A. psidii inoculation”
✓ located verbatim in the source · abstract, characters 774–865

t0
“Metrosideros excelsa”
✓ located verbatim in the source · title, characters 154–174

Title

A non-native pathogen meets a native host: Austropuccinia psidii infection reduces photosynthesis and alters non-structural carbohydrates in seedlings of Metrosideros excelsa

Hoa Nguyen; Peter J. Bellingham; Mahajabeen Padamsee; et al. Trees 2025. doi:10.1007/s00468-024-02593-8

Other claims from this paper (9)

Intervention effect Photosynthetic rate fell over 90% within six weeks after inoculation.
Observation The photosynthetic decline was associated with biochemical damage in CO 2 fixation.
Observation Stomatal conductance declined during the first four weeks after inoculation.
Observation Stomatal conductance subsequently rose.
Mechanism Lesions and necrotic cells may inhibit stomatal regulation.
Intervention effect Infected leaves had threefold higher starch than controls at 20 weeks.
Mechanism Reduced export of newly fixed carbon could explain starch buildup.
Intervention effect Infected leaves had 31% lower glucose and fructose at the end.
Mechanism The authors suggest leaf necrosis may explain lower glucose and fructose.

Recommendationauthor interpretationoriginal resultpositivebasis n/a

Claim · model-written summary

The authors recommend testing microbial inhibition, mechanisms and synergy against allspice diseases in vitro and in the field.

Taxon: allspicePimenta dioicae0
Interactor: Colletotrichum sp.Colletotrichume0pathogen
Second interactor: A. psidiiAustropuccinia psidiie0pathogen
Outcome: evaluate the inhibitory capacity of these microorganisms, their mechanisms of action, and their synergistic effecte0

Verbatim

e0
“Research is needed to evaluate the inhibitory capacity of these microorganisms, their mechanisms of action, and their synergistic effect on Colletotrichum sp. and A. psidii under in vitro and field conditions in allspice”
✓ located verbatim in the source · abstract, characters 1644–1864

Title

Allspice (Pimenta dioica) in Mexico and the use of antagonistic microorganisms for rust and anthracnose control

Marco Antonio Morales-German; Marja Liza Fajardo-Franco; Martin Aguilar-Tlatelpa Revista mexicana de fitopatología(en línea)/Revista mexicana de fitopatología 2025. doi:10.18781/r.mex.fit.2024-35

Other claims from this paper (6)

Observation Allspice production in Mexico has increased in recent years.
Observation Allspice production remains insufficient for the market.
Observation Information on anthracnose management in allspice is scarce.
Observation Information on rust management in allspice is scarce.
Observation Bacillus sp. has documented antagonistic potential against Colletotrichum sp.
Observation Multiple microbial genera have documented antagonistic potential against allspice rust and anthracnose pathogens.

Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

The proportion of highly susceptible plants within a Melaleuca species ranged from 2 to 94%.

Taxon: MelaleucaMelaleucat0
Interactor: A. psidiiAustropuccinia psidiie1pathogen
Outcome: proportion of highly susceptible plantse0
Value: 2 to 94%e0

Verbatim

e0
“The proportion of highly susceptible plants within a single species ranged from 2 to 94%”
✓ located verbatim in the source · abstract, characters 645–733

t0
“Melaleuca species”
✓ located verbatim in the source · title, characters 31–48

e1
“A. psidii”
✓ located verbatim in the source · abstract, characters 807–816

Title

Threatened and Priority listed Melaleuca species from Western Australia display high susceptibility to Austropuccinia psidii in controlled inoculations

Alyssa M. Martino; Robert F. Park; Peri A. Tobias Australasian Plant Pathology 2024. doi:10.1007/s13313-024-00974-8

Other claims from this paper (2)

Observationobservedoriginal resultmixedmeasured

Claim · model-written summary

Several Melaleuca species showed highly variable resistance to A. psidii.

Taxon: MelaleucaMelaleucat0
Interactor: A. psidiiAustropuccinia psidiie0pathogen
Outcome: highly variable levels of resistancee0

Verbatim

e0
“several species displaying highly variable levels of resistance to A. psidii”
✓ located verbatim in the source · abstract, characters 740–816

t0
“Melaleuca species”
✓ located verbatim in the source · title, characters 31–48

Title

Threatened and Priority listed Melaleuca species from Western Australia display high susceptibility to Austropuccinia psidii in controlled inoculations

Alyssa M. Martino; Robert F. Park; Peri A. Tobias Australasian Plant Pathology 2024. doi:10.1007/s13313-024-00974-8

Other claims from this paper (2)

Observationobservedoriginal resultmeasured

Claim · model-written summary

Four of five sampled plants were confirmed infected with A. psidii.

Taxon: Syzygium buxifoliumSyzygium buxifoliumt0
Interactor: A. psidiiAustropuccinia psidiie0pathogen
Outcome: infected with A. psidiie0
Value: Four of the fivee0

Verbatim

e0
“Four of the five plants sampled were confirmed to be infected with A. psidii”
✓ located verbatim in the source · abstract, characters 1242–1318

t0
“Syzygium buxifolium”
✓ located verbatim in the source · title, characters 41–60

Title

First report of Austropuccinia psidii on Syzygium buxifolium grown as indoor bonsai in Europe

B. Ruffner; L. Beenken; Q. Kupper; et al. New Disease Reports 2024. doi:10.1002/ndr2.70011

Other claims from this paper (6)

Observation Rust symptoms occurred on S. buxifolium bonsai plants in Swiss retail branches.
Observation Early leaf and shoot spots progressed to uredinia.
Observation Older lesions caused deformation and sometimes dieback.
Observation Microscopy found urediniospores but no teliospores.
Observation The identified strains belonged to the pandemic biotype.
Intervention effect Inoculated S. buxifolium developed lesions and uredinia.

A. psidii 61 claims

61 claims