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Metarhizium brunneum (Hypocreales: Clavicipitaceae) and Its Derived Volatile Organic Compounds as Biostimulants of Commercially Valuable Angiosperms and Gymnosperms

Martyn Wood, Alexandra M. Kortsinoglou Orcid Logo, Salim Khoja, Vassili N. Kouvelis Orcid Logo, Arben Myrta, Audun Midthassel, Joel Loveridge Orcid Logo, Tariq Butt Orcid Logo

Journal of Fungi, Volume: 8, Issue: 10, Start page: 1052

Swansea University Authors: Martyn Wood, Salim Khoja, Joel Loveridge Orcid Logo, Tariq Butt Orcid Logo

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DOI (Published version): 10.3390/jof8101052

Abstract

Metarhizium brunneum is a highly effective entomopathogenic fungus that also functions as a plant biostimulant. It can act as both an endophyte and rhizosphere colonizer; however, the mechanisms driving biostimulation are multifactorial. In this work, oilseed rape (Brassica napus) seeds were grown i...

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Published in: Journal of Fungi
ISSN: 2309-608X
Published: MDPI AG 2022
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URI: https://cronfa.swan.ac.uk/Record/cronfa61805
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spelling 2022-11-28T15:04:41.3808328 v2 61805 2022-11-08 Metarhizium brunneum (Hypocreales: Clavicipitaceae) and Its Derived Volatile Organic Compounds as Biostimulants of Commercially Valuable Angiosperms and Gymnosperms a5b65490dddd5e965ab6623bc2c7022d Martyn Wood Martyn Wood true false 7b244b69ad0a81fc0cabd6b8ae7e9f1f Salim Khoja Salim Khoja true false 5dd2760b388ec3cc2af33bb62f3f151a 0000-0002-8528-4019 Joel Loveridge Joel Loveridge true false 85d1c2ddde272a1176e74978e25ebece 0000-0002-8789-9543 Tariq Butt Tariq Butt true false 2022-11-08 BGPS Metarhizium brunneum is a highly effective entomopathogenic fungus that also functions as a plant biostimulant. It can act as both an endophyte and rhizosphere colonizer; however, the mechanisms driving biostimulation are multifactorial. In this work, oilseed rape (Brassica napus) seeds were grown in composts treated with different concentrations of M. brunneum strains ARSEF 4556 or V275, or the M. brunneum-derived volatile organic compounds 1-octen-3-ol and 3-octanone. Biostimulation efficacy was found to be strongly dose dependent. Concentrations of 1 × 106 conidia g−1 compost were found to be most effective for the M. brunneum, whereas dosages of 1 µL 100 g−1 compost were found to be efficacious for the volatiles. These optimized doses were assessed individually and in combined formulations with a hydrogel against oilseed rape (Brassica napus), sitka spruce (Picea sitchensis), maize (Zea mays) and strawberry (Fragaria annanassa). Both volatile compounds were highly effective biostimulants and were found to increase in biostimulatory efficiency when combined with M. brunneum conidia. Hydrogels were not found to interact with the growth process and may offer avenues for novel formulation technologies. This study demonstrates that Metarhizium-derived volatile organic compounds are actively involved in plant growth promotion and have potential for use in novel formulations to increase the growth of a wide range of commercially relevant crops. Journal Article Journal of Fungi 8 10 1052 MDPI AG 2309-608X volatile organic compounds; entomopathogenic fungi; Metarhizium brunneum; biostimulation;hydrogels; plants 8 10 2022 2022-10-08 10.3390/jof8101052 COLLEGE NANME Biosciences Geography and Physics School COLLEGE CODE BGPS Swansea University This project was been part-funded by the European Regional Development Fund (ERDF) through the Welsh Government’s SMART Expertise programme for West Wales and the Valleys. 2022-11-28T15:04:41.3808328 2022-11-08T10:06:09.0956217 Faculty of Science and Engineering School of Biosciences, Geography and Physics - Biosciences Martyn Wood 1 Alexandra M. Kortsinoglou 0000-0002-4667-7290 2 Salim Khoja 3 Vassili N. Kouvelis 0000-0001-6753-0872 4 Arben Myrta 5 Audun Midthassel 6 Joel Loveridge 0000-0002-8528-4019 7 Tariq Butt 0000-0002-8789-9543 8 61805__25801__a205da478ba842f785932014e97855b8.pdf 61805.pdf 2022-11-16T14:00:08.0812969 Output 4793771 application/pdf Version of Record true © 2022 by the authors. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license true eng https://creativecommons.org/licenses/by/4.0/
title Metarhizium brunneum (Hypocreales: Clavicipitaceae) and Its Derived Volatile Organic Compounds as Biostimulants of Commercially Valuable Angiosperms and Gymnosperms
spellingShingle Metarhizium brunneum (Hypocreales: Clavicipitaceae) and Its Derived Volatile Organic Compounds as Biostimulants of Commercially Valuable Angiosperms and Gymnosperms
Martyn Wood
Salim Khoja
Joel Loveridge
Tariq Butt
title_short Metarhizium brunneum (Hypocreales: Clavicipitaceae) and Its Derived Volatile Organic Compounds as Biostimulants of Commercially Valuable Angiosperms and Gymnosperms
title_full Metarhizium brunneum (Hypocreales: Clavicipitaceae) and Its Derived Volatile Organic Compounds as Biostimulants of Commercially Valuable Angiosperms and Gymnosperms
title_fullStr Metarhizium brunneum (Hypocreales: Clavicipitaceae) and Its Derived Volatile Organic Compounds as Biostimulants of Commercially Valuable Angiosperms and Gymnosperms
title_full_unstemmed Metarhizium brunneum (Hypocreales: Clavicipitaceae) and Its Derived Volatile Organic Compounds as Biostimulants of Commercially Valuable Angiosperms and Gymnosperms
title_sort Metarhizium brunneum (Hypocreales: Clavicipitaceae) and Its Derived Volatile Organic Compounds as Biostimulants of Commercially Valuable Angiosperms and Gymnosperms
author_id_str_mv a5b65490dddd5e965ab6623bc2c7022d
7b244b69ad0a81fc0cabd6b8ae7e9f1f
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85d1c2ddde272a1176e74978e25ebece
author_id_fullname_str_mv a5b65490dddd5e965ab6623bc2c7022d_***_Martyn Wood
7b244b69ad0a81fc0cabd6b8ae7e9f1f_***_Salim Khoja
5dd2760b388ec3cc2af33bb62f3f151a_***_Joel Loveridge
85d1c2ddde272a1176e74978e25ebece_***_Tariq Butt
author Martyn Wood
Salim Khoja
Joel Loveridge
Tariq Butt
author2 Martyn Wood
Alexandra M. Kortsinoglou
Salim Khoja
Vassili N. Kouvelis
Arben Myrta
Audun Midthassel
Joel Loveridge
Tariq Butt
format Journal article
container_title Journal of Fungi
container_volume 8
container_issue 10
container_start_page 1052
publishDate 2022
institution Swansea University
issn 2309-608X
doi_str_mv 10.3390/jof8101052
publisher MDPI AG
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Biosciences, Geography and Physics - Biosciences{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Biosciences, Geography and Physics - Biosciences
document_store_str 1
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description Metarhizium brunneum is a highly effective entomopathogenic fungus that also functions as a plant biostimulant. It can act as both an endophyte and rhizosphere colonizer; however, the mechanisms driving biostimulation are multifactorial. In this work, oilseed rape (Brassica napus) seeds were grown in composts treated with different concentrations of M. brunneum strains ARSEF 4556 or V275, or the M. brunneum-derived volatile organic compounds 1-octen-3-ol and 3-octanone. Biostimulation efficacy was found to be strongly dose dependent. Concentrations of 1 × 106 conidia g−1 compost were found to be most effective for the M. brunneum, whereas dosages of 1 µL 100 g−1 compost were found to be efficacious for the volatiles. These optimized doses were assessed individually and in combined formulations with a hydrogel against oilseed rape (Brassica napus), sitka spruce (Picea sitchensis), maize (Zea mays) and strawberry (Fragaria annanassa). Both volatile compounds were highly effective biostimulants and were found to increase in biostimulatory efficiency when combined with M. brunneum conidia. Hydrogels were not found to interact with the growth process and may offer avenues for novel formulation technologies. This study demonstrates that Metarhizium-derived volatile organic compounds are actively involved in plant growth promotion and have potential for use in novel formulations to increase the growth of a wide range of commercially relevant crops.
published_date 2022-10-08T05:21:02Z
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