Article (Périodiques scientifiques)
Assessment of induced allelopathy in crop-weed co-culture with rye-pigweed model.
Mushtaq, Waseem; Fauconnier, Marie-Laure; De Clerck, Caroline
2024In Scientific Reports, 14 (1), p. 10446
Peer reviewed vérifié par ORBi
 

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Mots-clés :
Benzoxazines; Amaranthus/growth & development; Germination; Coculture Techniques/methods; Plant Weeds; Crops, Agricultural/growth & development; Seedlings/growth & development; Secale; Allelopathy
Résumé :
[en] This study evaluates induced allelopathy in a rye-pigweed model driven by rye's (Secale cereale L.) allelopathic potential as a cover crop and pigweed's (Amaranthus retroflexus L.) notoriety as a weed. The response of rye towards pigweed's presence in terms of benzoxazinoids (BXs) provides valuable insight into induced allelopathy for crop improvement. In the 2 week plant stage, pigweed experiences a significant reduction in growth in rye's presence, implying allelopathic effects. Rye exhibits increased seedling length and BXs upsurge in response to pigweed presence. These trends persist in the 4 week plant stage, emphasizing robust allelopathic effects and the importance of different co-culture arrangements. Germination experiments show rye's ability to germinate in the presence of pigweed, while pigweed exhibits reduced germination with rye. High-performance liquid chromatography with diode-array detection (HPLC-DAD) analysis identifies allelopathic compounds (BXs), 2,4-dihydroxy-1,4-benzoxazin-3-one (DIBOA) and 2,4-dihydroxy-7-methoxy-1,4-benzoxazin-3-one (DIMBOA) in rye. Rye significantly increases BX production in response to pigweed, age-dependently. Furthermore, pigweed plants are screened for possible BX uptake from the rhizosphere. Results suggest that allelopathy in rye-pigweed co-cultures is influenced by seed timing, and age-dependent dynamics of plants' allelopathic compounds, providing a foundation for further investigations into chemical and ecological processes in crop-weed interactions.
Disciplines :
Agriculture & agronomie
Chimie
Auteur, co-auteur :
Mushtaq, Waseem   ;  Université de Liège - ULiège > Département GxABT > Chemistry for Sustainable Food and Environmental Systems (CSFES)
Fauconnier, Marie-Laure   ;  Université de Liège - ULiège > TERRA Research Centre > Chemistry for Sustainable Food and Environmental Systems (CSFES)
De Clerck, Caroline   ;  Université de Liège - ULiège > TERRA Research Centre > Plant Sciences
 Ces auteurs ont contribué de façon équivalente à la publication.
Langue du document :
Anglais
Titre :
Assessment of induced allelopathy in crop-weed co-culture with rye-pigweed model.
Date de publication/diffusion :
07 mai 2024
Titre du périodique :
Scientific Reports
eISSN :
2045-2322
Maison d'édition :
Springer Science and Business Media LLC, England
Volume/Tome :
14
Fascicule/Saison :
1
Pagination :
10446
Peer reviewed :
Peer reviewed vérifié par ORBi
Disponible sur ORBi :
depuis le 10 mai 2024

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citations Scopus®
 
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