Leachates from plants recently infected by root-feeding nematodes cause increased biomass allocation to roots in neighbouring plants

Abstract Plants can adjust defence strategies in response to signals from neighbouring plants attacked by aboveground herbivores. Whether similar responses exist to belowground herbivory remains less studied, particularly regarding the spatiotemporal dynamics of such belowground signalling. We grew...

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Autores principales:	Peihua Zhang, Dries Bonte, Gerlinde B. De Deyn, Martijn L. Vandegehuchte
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/3522474d75764ee0aad75150093f70ac
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spelling	oai:doaj.org-article:3522474d75764ee0aad75150093f70ac2021-12-02T14:16:07ZLeachates from plants recently infected by root-feeding nematodes cause increased biomass allocation to roots in neighbouring plants10.1038/s41598-021-82022-92045-2322https://doaj.org/article/3522474d75764ee0aad75150093f70ac2021-01-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-82022-9https://doaj.org/toc/2045-2322Abstract Plants can adjust defence strategies in response to signals from neighbouring plants attacked by aboveground herbivores. Whether similar responses exist to belowground herbivory remains less studied, particularly regarding the spatiotemporal dynamics of such belowground signalling. We grew the grass Agrostis stolonifera with or without root-feeding nematodes (Meloidogyne minor). Leachates were extracted at different distances from these plants and at different times after inoculation. The leachates were applied to receiver A. stolonifera plants, of which root, shoot, and total biomass, root/shoot ratio, shoot height, shoot branch number, maximum rooting depth and root number were measured 3 weeks after leachate application. Receiver plants allocated significantly more biomass to roots when treated with leachates from nematode-inoculated plants at early infection stages. However, receiver plants’ root/shoot ratio was similar when receiving leachates collected at later stages from nematode-infected or control plants. Overall, early-collected leachates reduced growth of receiver plants significantly. Plants recently infected by root-feeding nematodes can thus induce increased root proliferation of neighbouring plants through root-derived compounds. Possible explanations for this response include a better tolerance of anticipated root damage by nematodes or the ability to grow roots away from the nematode-infected soil. Further investigations are still needed to identify the exact mechanisms.Peihua ZhangDries BonteGerlinde B. De DeynMartijn L. VandegehuchteNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-13 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Peihua Zhang Dries Bonte Gerlinde B. De Deyn Martijn L. Vandegehuchte Leachates from plants recently infected by root-feeding nematodes cause increased biomass allocation to roots in neighbouring plants
description	Abstract Plants can adjust defence strategies in response to signals from neighbouring plants attacked by aboveground herbivores. Whether similar responses exist to belowground herbivory remains less studied, particularly regarding the spatiotemporal dynamics of such belowground signalling. We grew the grass Agrostis stolonifera with or without root-feeding nematodes (Meloidogyne minor). Leachates were extracted at different distances from these plants and at different times after inoculation. The leachates were applied to receiver A. stolonifera plants, of which root, shoot, and total biomass, root/shoot ratio, shoot height, shoot branch number, maximum rooting depth and root number were measured 3 weeks after leachate application. Receiver plants allocated significantly more biomass to roots when treated with leachates from nematode-inoculated plants at early infection stages. However, receiver plants’ root/shoot ratio was similar when receiving leachates collected at later stages from nematode-infected or control plants. Overall, early-collected leachates reduced growth of receiver plants significantly. Plants recently infected by root-feeding nematodes can thus induce increased root proliferation of neighbouring plants through root-derived compounds. Possible explanations for this response include a better tolerance of anticipated root damage by nematodes or the ability to grow roots away from the nematode-infected soil. Further investigations are still needed to identify the exact mechanisms.
format	article
author	Peihua Zhang Dries Bonte Gerlinde B. De Deyn Martijn L. Vandegehuchte
author_facet	Peihua Zhang Dries Bonte Gerlinde B. De Deyn Martijn L. Vandegehuchte
author_sort	Peihua Zhang
title	Leachates from plants recently infected by root-feeding nematodes cause increased biomass allocation to roots in neighbouring plants
title_short	Leachates from plants recently infected by root-feeding nematodes cause increased biomass allocation to roots in neighbouring plants
title_full	Leachates from plants recently infected by root-feeding nematodes cause increased biomass allocation to roots in neighbouring plants
title_fullStr	Leachates from plants recently infected by root-feeding nematodes cause increased biomass allocation to roots in neighbouring plants
title_full_unstemmed	Leachates from plants recently infected by root-feeding nematodes cause increased biomass allocation to roots in neighbouring plants
title_sort	leachates from plants recently infected by root-feeding nematodes cause increased biomass allocation to roots in neighbouring plants
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/3522474d75764ee0aad75150093f70ac
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Leachates from plants recently infected by root-feeding nematodes cause increased biomass allocation to roots in neighbouring plants

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