Vertical spread of Hymenoscyphus fraxineus propagules

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12220%2F23%3A43907832" target="_blank" >RIV/60076658:12220/23:43907832 - isvavai.cz</a>

Alternative codes found

RIV/62156489:43410/23:43923481

Result on the web

<a href="https://repozitar.mendelu.cz/xmlui/handle/20.500.12698/1759" target="_blank" >https://repozitar.mendelu.cz/xmlui/handle/20.500.12698/1759</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3897/neobiota.84.90981" target="_blank" >10.3897/neobiota.84.90981</a>

Result language

angličtina

Original language name

Vertical spread of Hymenoscyphus fraxineus propagules

Original language description

Currently, the ash dieback causal agent Hymenoscyphus fraxineus is an established invasive pathogen inmost European countries. Its potential to spread quickly among invaded forests is based on its propagules:airborne inoculum composed mainly of ascospores originated in apothecia growing on leaf litter infectedduring the previous vegetation season. The spread of the inoculum by air masses to distant areas is prob-able and depends on the availability of the ascospores in higher levels of air. Our study aimed to detect theinoculum in an infected area at heights of more than 20 meters. Our study was conducted in a municipallocality (Boršov nad Vltavou) with tens of infected ash trees (Fraxinus excelsior) in South Bohemia (SWCzechia). The infected trees surround an agricultural silo where five rotating arm spore traps (rotorods)were mounted for ten consequent 48h samplings during the peak of the sporulating season (17th July to 6thAugust 2020). The spore traps were mounted 48, 37, 25, 14 and 0,3 meters above ground. Samples werequantified by qPCR. Results clearly proved the ability of the spores to reach a height of 48 meters. Further-more, H. fraxineus DNA was detected from all five spore traps during all ten samplings. Mostly, the amountof detected spores showed a decreasing trend with height, and varied a lot. During some of the samplings,higher spore concetrations were achieved at the top than at the lower traps, which can be explained byhorizontal air transfer of the inoculum from other infected areas. Based on GLM analyses, higher sporeconcentrations were achieved during days without rain, lower air temperatures, after cloudy, humid andrainy weather without strong winds. A combination of rotorod ROTTRAP 52 with qPCR quantificationproved to be an efficient technology for a study focused on the vertical spread of H. fraxineus propagules.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10619 - Biodiversity conservation

Project

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Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2023

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

NeoBiota

ISSN

1619-0033

e-ISSN

1314-2488

Volume of the periodical

84

Issue of the periodical within the volume

2023

Country of publishing house

BG - BULGARIA

Number of pages

16

Pages from-to

231-246

UT code for WoS article

001002757800010

EID of the result in the Scopus database

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