Modification of root microRNAs expression and exudation of wheat in response to bisphenol A contamination - Normandie Université Accéder directement au contenu
Proceedings/Recueil Des Communications Toxicology Letters Année : 2021

Modification of root microRNAs expression and exudation of wheat in response to bisphenol A contamination

A. Coutelier
  • Fonction : Auteur
David Houben
J. Fontaine
  • Fonction : Auteur
A. Lounès-Hadj Sahraoui
  • Fonction : Auteur
Michel-Pierre Faucon
Stéphane Firmin

Résumé

MicroRNAs (miRs) are recognized as key molecular regulators in most of intracellular processes essential for plant adaptation to en- vironmental changes. microRNAs can mediate regulation of gene expression involved in development, acquisition of nutrients, de- fense and interactions with soil microorganisms to enhance stress tolerance of plants. Accumulating evidences indicate that microR- NAs are also transferred within cells, organs or whole plant and released in soil as stress signals of the plant-microbiome commu- nication. However, little information is available about how mobile microRNAs are conveyed from plant to the rhizosphere. To under- stand whether this intriguing phenomenon occurs through root secretion, morphological and physiological changes as well as the expression profiles of developmental and oxidative stress respon- sive microRNAs were analyzed in root tissues and exudates col- lected from wheat (triticum aestivum) exposed to bisphenol A at low and high concentrations (0.1 and 5000 mg. kg -1 soil). BPA contami- nation significantly affected aerial and root biomass, antioxidant enzymes activities (catalase and superoxide dismutase) and mir 164, miR 167, and miR 398 expression in roots of the group that received the highest dose. The presence of miR156, miR164, miR167 was detected in root exudates of controls and contaminated plants while BPA exposure increased miR 167 levels exuded at high dose. In summary, this experiment offered first results reporting a par- ticipation of the microRNAs regulatory network in the BPA stress response of wheat. The identification of microRNAs as integral com- ponent of the root exudates will provide novel insights into chemi- cal signaling in plant-soil microbiome interactions.
Fichier non déposé

Dates et versions

hal-04255004 , version 1 (23-10-2023)

Identifiants

Citer

Celine Roisin, A. Coutelier, David Houben, J. Fontaine, A. Lounès-Hadj Sahraoui, et al.. Modification of root microRNAs expression and exudation of wheat in response to bisphenol A contamination. Toxicology Letters, 350, pp.S253, 2021, ⟨10.1016/S0378-4274(21)00823-7⟩. ⟨hal-04255004⟩
20 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More