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Volatiles of the entomopathogenic fungus, Metarhizium brunneum, attract and kill plant parasitic nematodes

Salim Khoja Orcid Logo, Khalifa Eltayef, Ian Baxter, Arben Myrta, James Bull Orcid Logo, Tariq Butt Orcid Logo

Biological Control, Volume: 152, Start page: 104472

Swansea University Authors: Salim Khoja Orcid Logo, Khalifa Eltayef, James Bull Orcid Logo, Tariq Butt Orcid Logo

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Abstract

Root knot nematodes (RKNs) cause significant crop losses. Although RKNs and entomopathogenic fungi, such as Metarhizium brunneum, are associated with plant roots, very little is known about the interactions between these two organisms. This study showed that conidia and VOCs of Me. brunneum influenc...

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Published in: Biological Control
ISSN: 1049-9644
Published: Elsevier BV 2020
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spelling 2021-05-26T15:08:28.0321544 v2 55599 2020-11-05 Volatiles of the entomopathogenic fungus, Metarhizium brunneum, attract and kill plant parasitic nematodes 7b244b69ad0a81fc0cabd6b8ae7e9f1f 0000-0003-3763-6769 Salim Khoja Salim Khoja true false 2ab6682d322d36d9ed3dbbf95e17e8a0 Khalifa Eltayef Khalifa Eltayef true false 20742518482c020c80b81b88e5313356 0000-0002-4373-6830 James Bull James Bull true false 85d1c2ddde272a1176e74978e25ebece 0000-0002-8789-9543 Tariq Butt Tariq Butt true false 2020-11-05 SBI Root knot nematodes (RKNs) cause significant crop losses. Although RKNs and entomopathogenic fungi, such as Metarhizium brunneum, are associated with plant roots, very little is known about the interactions between these two organisms. This study showed that conidia and VOCs of Me. brunneum influenced the behaviour of M. hapla. The response was dependent on the fungal strain, VOC, concentration of both VOC and conidia, and time. Tomatoes planted in soil treated with the highest doses of conidia usually had a higher number of nematodes than untreated control plants. This was particularly obvious for Me. brunneum strain ARSEF 4556, 7 and 14-days post-treatment. The VOCs, 1-octen-3-ol and 3-octanone, lured M. hapla to plants when used at low doses and repelled them at high doses. In Petri dish assays. the VOCs 1-octen-3-ol and 3-octanone, caused 100% mortality of M. hapla at the highest dose tested (20µl). Very few live M. hapla were recovered from soil treated with the VOC 1-octen-3-ol, especially at the highest doses tested. Journal Article Biological Control 152 104472 Elsevier BV 1049-9644 Plant parasitic nematodes, Fungal volatiles, Metarhizium, Repellents, Attractants 4 11 2020 2020-11-04 10.1016/j.biocontrol.2020.104472 COLLEGE NANME Biosciences COLLEGE CODE SBI Swansea University This work was supported by a BBSRC NPRONET grant BIV021 and the Impact 337Acceleration Account grant EP/R511614/1 for Swansea University from the UK 338Engineering and Physical Sciences Research Council (EPSRC). The authors also 339thank Certis Europe BV for funding the research. 2021-05-26T15:08:28.0321544 2020-11-05T10:54:08.7191434 College of Science Biosciences Salim Khoja 0000-0003-3763-6769 1 Khalifa Eltayef 2 Ian Baxter 3 Arben Myrta 4 James Bull 0000-0002-4373-6830 5 Tariq Butt 0000-0002-8789-9543 6 55599__18680__c788a27aa6474a54a73e61037f0ca733.pdf 55599.VOR.pdf 2020-11-17T12:13:11.4515821 Output 6378677 application/pdf Version of Record true © 2020 Author(s). Distributed under the terms of a Creative Commons 4.0 Attribution License (CC-BY). true eng http://creativecommons.org/licenses/by/4.0/
title Volatiles of the entomopathogenic fungus, Metarhizium brunneum, attract and kill plant parasitic nematodes
spellingShingle Volatiles of the entomopathogenic fungus, Metarhizium brunneum, attract and kill plant parasitic nematodes
Salim Khoja
Khalifa Eltayef
James Bull
Tariq Butt
title_short Volatiles of the entomopathogenic fungus, Metarhizium brunneum, attract and kill plant parasitic nematodes
title_full Volatiles of the entomopathogenic fungus, Metarhizium brunneum, attract and kill plant parasitic nematodes
title_fullStr Volatiles of the entomopathogenic fungus, Metarhizium brunneum, attract and kill plant parasitic nematodes
title_full_unstemmed Volatiles of the entomopathogenic fungus, Metarhizium brunneum, attract and kill plant parasitic nematodes
title_sort Volatiles of the entomopathogenic fungus, Metarhizium brunneum, attract and kill plant parasitic nematodes
author_id_str_mv 7b244b69ad0a81fc0cabd6b8ae7e9f1f
2ab6682d322d36d9ed3dbbf95e17e8a0
20742518482c020c80b81b88e5313356
85d1c2ddde272a1176e74978e25ebece
author_id_fullname_str_mv 7b244b69ad0a81fc0cabd6b8ae7e9f1f_***_Salim Khoja
2ab6682d322d36d9ed3dbbf95e17e8a0_***_Khalifa Eltayef
20742518482c020c80b81b88e5313356_***_James Bull
85d1c2ddde272a1176e74978e25ebece_***_Tariq Butt
author Salim Khoja
Khalifa Eltayef
James Bull
Tariq Butt
author2 Salim Khoja
Khalifa Eltayef
Ian Baxter
Arben Myrta
James Bull
Tariq Butt
format Journal article
container_title Biological Control
container_volume 152
container_start_page 104472
publishDate 2020
institution Swansea University
issn 1049-9644
doi_str_mv 10.1016/j.biocontrol.2020.104472
publisher Elsevier BV
college_str College of Science
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hierarchy_top_id collegeofscience
hierarchy_top_title College of Science
hierarchy_parent_id collegeofscience
hierarchy_parent_title College of Science
department_str Biosciences{{{_:::_}}}College of Science{{{_:::_}}}Biosciences
document_store_str 1
active_str 0
description Root knot nematodes (RKNs) cause significant crop losses. Although RKNs and entomopathogenic fungi, such as Metarhizium brunneum, are associated with plant roots, very little is known about the interactions between these two organisms. This study showed that conidia and VOCs of Me. brunneum influenced the behaviour of M. hapla. The response was dependent on the fungal strain, VOC, concentration of both VOC and conidia, and time. Tomatoes planted in soil treated with the highest doses of conidia usually had a higher number of nematodes than untreated control plants. This was particularly obvious for Me. brunneum strain ARSEF 4556, 7 and 14-days post-treatment. The VOCs, 1-octen-3-ol and 3-octanone, lured M. hapla to plants when used at low doses and repelled them at high doses. In Petri dish assays. the VOCs 1-octen-3-ol and 3-octanone, caused 100% mortality of M. hapla at the highest dose tested (20µl). Very few live M. hapla were recovered from soil treated with the VOC 1-octen-3-ol, especially at the highest doses tested.
published_date 2020-11-04T04:10:45Z
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