Root uptake of cereal benzoxazinoids grants resistance to root-knot nematode invasion in white clover

Copyright © 2024 The Authors. Published by Elsevier Masson SAS.. All rights reserved.

Bibliographische Detailangaben
Veröffentlicht in:Plant physiology and biochemistry : PPB. - 1991. - 210(2024) vom: 24. Mai, Seite 108636
1. Verfasser: Hama, Jawameer R (VerfasserIn)
Weitere Verfasser: Fomsgaard, Inge S, Topalović, Olivera, Vestergård, Mette
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2024
Zugriff auf das übergeordnete Werk:Plant physiology and biochemistry : PPB
Schlagworte:Journal Article Co-cropping Defence metabolites LC-MS/MS Meloidogyne Metabolization Neighbour effects Trifolium Benzoxazines
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520 |a Plants synthesize a plethora of chemical defence compounds, which vary between evolutionary lineages. We hypothesize that plants evolved the ability to utilize defence compounds synthesized and released by neighbouring heterospecific plants. In two experiments, we incubated clover (Trifolium repens L.) seedlings with individual benzoxazinoid (BX) compounds (2,4-dihydroxy-1,4-benzoxazin-3-one, 2-hydroxy-1,4-benzoxazin-3-one, benzoxazolinone, and 6-methoxy- benzoxazolin-2-one), a group of bioactive compounds produced by cereals, to allow clover BX uptake. Subsequently, we transplanted the seedlings into soil and quantified BX root and shoot content and invasion of root-knot nematodes in clover roots up to 8 weeks after transplantation. We show that clover root uptake of BXs substantially enhanced clover's resistance against the root-knot nematode Meloidogyne incognita. This effect lasted up to 6 weeks after the clover roots were exposed to the BXs. BXs were absorbed by clover roots, and then translocated to the shoots. As a result of clover metabolization, we detected the parent BXs and a range of their transformation products in the roots and shoots. Based on these novel findings, we envisage that co-cultivation of crop species with complementary and transferable chemical defence systems can add to plant protection 
650 4 |a Journal Article 
650 4 |a Co-cropping 
650 4 |a Defence metabolites 
650 4 |a LC-MS/MS 
650 4 |a Meloidogyne 
650 4 |a Metabolization 
650 4 |a Neighbour effects 
650 4 |a Trifolium 
650 7 |a Benzoxazines  |2 NLM 
700 1 |a Fomsgaard, Inge S  |e verfasserin  |4 aut 
700 1 |a Topalović, Olivera  |e verfasserin  |4 aut 
700 1 |a Vestergård, Mette  |e verfasserin  |4 aut 
773 0 8 |i Enthalten in  |t Plant physiology and biochemistry : PPB  |d 1991  |g 210(2024) vom: 24. Mai, Seite 108636  |w (DE-627)NLM098178261  |x 1873-2690  |7 nnns 
773 1 8 |g volume:210  |g year:2024  |g day:24  |g month:05  |g pages:108636 
856 4 0 |u http://dx.doi.org/10.1016/j.plaphy.2024.108636  |3 Volltext 
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