Summary of Inoculation of Rhizoglomus irregulare or Trichoderma atroviride differentially modulates metabolite profiling of wheat root exudates
Biostimulant on Wheat Root Exudates: Enhancing Growth with Beneficial Fungi
Biostimulant on Wheat Root Exudates Promotes Early Plant Development
A biostimulant on wheat root exudates plays a crucial role in regulating plant growth, nutrient uptake, and interactions with beneficial microbes. In this study, we investigated how applying beneficial fungi can influence wheat performance through root exudate modulation. Specifically, Trichoderma atroviride AT10 and Rhizoglomus irregulare BEG72 were applied as either a substrate drench or a seed coating. Consequently, this approach aimed to enhance wheat growth while supporting a healthy rhizosphere.
Fungal Inoculation Enhances Wheat Biomass
Interestingly, plants inoculated with R. irregulare showed an 18% increase in shoot biomass, a 39% rise in root biomass, and a 20% higher root-to-shoot ratio compared to untreated plants. On the other hand, T. atroviride treatments provided intermediate improvements. Therefore, the application of a biostimulant on wheat root exudates can effectively boost plant growth, depending on the fungal species and the method of application.
Metabolomic Responses Induced by Beneficial Fungi
Metabolomic analysis revealed more than 2900 compounds in wheat root exudates, demonstrating substantial chemical diversity. Orthogonal Projections to Latent Structures Discriminant Analysis (OPLS-DA) highlighted significant metabolic shifts caused by fungal inoculation. Key changes occurred in lipids, phenolic compounds, terpenoids, siderophores, and amino acid derivatives. Consequently, this biostimulant triggers complex biochemical responses, supporting both plant growth and beneficial microbial interactions.
Implications for Sustainable Agriculture
Overall, using fungi as a biostimulant on wheat root exudates provides practical strategies for sustainable wheat cultivation. By enhancing metabolite diversity and promoting plant-microbe interactions, these treatments improve crop performance and resilience. Furthermore, integrating such biostimulants into cultivation practices can contribute to healthier soils and higher long-term yields.
Publication: Phytochemistry
