Ultrasound Pulse Emission Spectroscopy Method to Characterize Xylem Conduits in Plant Stems
Although it is well known that plants emit acoustic pulses under drought stress, the exact origin of the waveform of these ultrasound pulses has remained elusive. Here, we present evidence for a correlation between the characteristics of the waveform of these pulses and the dimensions of xylem condu...
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Published in | Research (Washington) Vol. 2022; p. 9790438 |
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Main Authors | , , , , , |
Format | Journal Article |
Language | English |
Published |
AAAS
2022
American Association for the Advancement of Science (AAAS) |
Online Access | Get full text |
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Summary: | Although it is well known that plants emit acoustic pulses under drought stress, the exact origin of the waveform of these ultrasound pulses has remained elusive. Here, we present evidence for a correlation between the characteristics of the waveform of these pulses and the dimensions of xylem conduits in plants. Using a model that relates the resonant vibrations of a vessel to its dimension and viscoelasticity, we extract the xylem radii from the waveforms of ultrasound pulses and show that these are correlated and in good agreement with optical microscopy. We demonstrate the versatility of the method by applying it to shoots of ten different vascular plant species. In particular, for
Hydrangea quercifolia
, we further extract vessel element lengths with our model and compare them with scanning electron cryomicroscopy. The ultrasonic, noninvasive characterization of internal conduit dimensions enables a breakthrough in speed and accuracy in plant phenotyping and stress detection. |
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Bibliography: | ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
ISSN: | 2639-5274 2639-5274 |
DOI: | 10.34133/2022/9790438 |