Influence of sound vibrations on plant holobionts: physiological pathways linking root function and rhizospheric microbial interactions.
Sound vibrations might influence plant and microbial interactions through mechanotransduction, but empirical validation is needed to confirm this model.
Where it sits
this study against the rest of the cerebrolysin corpusSummary and findings
This review explores the impact of sound vibrations on plant holobionts, focusing on physiological pathways that connect root function with rhizospheric microbial interactions. It proposes a conceptual model where sound vibrations influence plant and microbial responses through mechanotransduction pathways. The study aims to guide future research on sound-based strategies for sustainable agriculture.
Abstract
Climate change increasingly threatens plant productivity and ecosystem stability, highlighting the need for sustainable strategies that enhance plant resilience. The plant holobiont-comprising the plant and its associated rhizospheric microbiota-has emerged as a key functional unit governing plant performance under environmental stress. Among emerging non-invasive approaches, sound and vibration stimuli have been reported to influence plant growth, stress responses, and microbial activity; however, the physiological mechanisms underlying these effects remain poorly defined. This review synthesizes current evidence on sound-induced plant and microbial responses within a holobiont framework and advances a physiology-driven conceptual model linking acoustic stimuli to root function and rhizospheric processes. We propose that sound vibrations act primarily as mechanical cues perceived by plant tissues through mechanotransduction pathways, triggering calcium and hormonal signaling that modulate root architecture, metabolism, and exudation patterns. These root-level physiological changes are hypothesized to indirectly shape rhizospheric microbial community assembly and function, thereby influencing nutrient acquisition, stress tolerance, and agronomic performance. By explicitly connecting sound perception, root functional traits, and plant-mediated microbial responses, this review moves beyond a descriptive synthesis and provides a mechanistic framework to guide future experimental research. Understanding these pathways may support the development of sound-based strategies as low-impact tools for improving plant-soil-microbe interactions in sustainable agriculture.
Background
The study addresses the need for sustainable agricultural strategies to enhance plant resilience in the face of climate change. It focuses on the plant holobiont, which includes the plant and its rhizospheric microbiota, as a key unit influencing plant performance under stress. Sound and vibration stimuli have been reported to affect plant growth and microbial activity, but the physiological mechanisms remain unclear.
Methods
This is a review article that synthesizes current evidence on sound-induced responses in plants and microbes within a holobiont framework. It proposes a physiology-driven conceptual model linking acoustic stimuli to root function and rhizospheric processes. The review does not involve new experimental data or specific methodologies.
Results
The review suggests that sound vibrations may be perceived by plant tissues as mechanical cues, triggering mechanotransduction pathways. These pathways could lead to changes in calcium and hormonal signaling, affecting root architecture and metabolism. These root-level changes may indirectly influence rhizospheric microbial communities, impacting nutrient acquisition and stress tolerance.
Interpretation
The proposed model offers a new perspective on how sound vibrations might influence plant and microbial interactions. While the framework is innovative, it remains speculative without direct empirical evidence. The review highlights the potential for sound-based strategies in agriculture but emphasizes the need for experimental validation to confirm these hypotheses.
Key findings
- Sound vibrations are proposed to act as mechanical cues perceived by plant tissues.
- Mechanotransduction pathways may trigger calcium and hormonal signaling.
- Root architecture, metabolism, and exudation patterns could be modulated by sound.
- Rhizospheric microbial community assembly and function may be indirectly influenced.
- The review provides a mechanistic framework for future experimental research.
Limitations
- No new experimental data presented
- Hypothetical model requires empirical validation
- Mechanisms remain poorly defined
- Focuses on plant and microbial interactions without direct evidence