A digital sensor to measure real-time leaf movements and detect abiotic stress in plants
| Autor: | Sebastien Carpentier, Batist Geldhof, Bram Van de Poel, David Eyland, Jolien Pattyn |
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| Rok vydání: | 2021 |
| Předmět: |
Crops
Agricultural AcademicSubjects/SCI01280 Physiology Movement Measure (physics) Plant Science Zea mays Petiole (botany) Solanum lycopersicum Inertial measurement unit Stress Physiological Circadian Clocks Genetics Signaling and Response Sensory cue Mathematics Digital Technology AcademicSubjects/SCI01270 Abiotic stress AcademicSubjects/SCI02288 AcademicSubjects/SCI02287 fungi AcademicSubjects/SCI02286 food and beverages Ranging Musa Lettuce Focus Issue on Architecture and Plasticity Digital sensors Plant Leaves Plant species Breakthrough Technologies Tools and Resources Biological system |
| Zdroj: | Plant Physiology |
| Popis: | Plant and plant organ movements are the result of a complex integration of endogenous growth and developmental responses, partially controlled by the circadian clock, and external environmental cues. Monitoring of plant motion is typically done by image-based phenotyping techniques with the aid of computer vision algorithms. Here we present a method to measure leaf movements using a digital inertial measurement unit (IMU) sensor. The lightweight sensor is easily attachable to a leaf or plant organ and records angular traits in real-time for two dimensions (pitch and roll) with high resolution (measured sensor oscillations of 0.36 ± 0.53° for pitch and 0.50 ± 0.65° for roll). We were able to record simple movements such as petiole bending, as well as complex lamina motions, in several crops, ranging from tomato to banana. We also assessed growth responses in terms of lettuce rosette expansion and maize seedling stem movements. The IMU sensors are capable of detecting small changes of nutations (i.e. bending movements) in leaves of different ages and in different plant species. In addition, the sensor system can also monitor stress-induced leaf movements. We observed that unfavorable environmental conditions evoke certain leaf movements, such as drastic epinastic responses, as well as subtle fading of the amplitude of nutations. In summary, the presented digital sensor system enables continuous detection of a variety of leaf motions with high precision, and is a low-cost tool in the field of plant phenotyping, with potential applications in early stress detection. An inertial measurement unit is capable of measuring dynamic and complex plant organ movements in real-time, and is suitable for early abiotic stress detection. |
| Databáze: | OpenAIRE |
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