A biosensor for plants monitors and analyzes physiological and biochemical parameters of plants in response to various environmental and growing conditions such as nutrients, temperature, lighting, and pathogens.  A biosensor for plants can provide real-time information about the health and growth of plants. By monitoring key parameters, such as nutrient levels, water stress, or disease presence, these biosensors can help diagnosis and support decision making regarding plant care, irrigation, nutrients, and disease management.

Biosensors for plants consist of a sensor component that interacts with the targeted molecules in or released from the plant, a transducer that converts the biological signal into an electrical or optical signal, and a data processing unit that analyzes and presents the data. A biosensor can be versatile in various applications, from large-scale indoor agricultural systems to living walls. Through real-time analysis, biosensors can contribute to more efficient and sustainable plant production, increase crop yield, and enable early detection and prevention of plant diseases at early stages.\

To ensure that plant biosensors contribute to an ethical future and prevent harm, the governance policy goals should focus on the following:

1. Ethical Use: Ensuring that the technology is employed for beneficial purposes and does not infringe upon individuals' rights or privacy.
2. Transparency and Accountability: Regular monitoring and evaluation of technology’s impact on society and the environment.
3. Data Privacy and Security: Collect data anonymously, protect and store data securely to prevent unauthorized access or misuse.
4. Environmental Impact: Develop sustainable practice in the design, manufacturing, and disposal of biosensors, recycle and reuse materials wherever possible, minimize any negative environmental impact.
5. Inclusive and Equitable Access: Ensure that the benefits of this technology are accessible to all, regardless of socioeconomic status or geographical location.