Claim · model-written summary
Thuja produced fewer audio acoustic emissions than ultrasonic emissions.
- Outcome
- produced fewer AAE than UAEe4
ThujaNot reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingDirectionValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“These plants produced fewer AAE than UAE; also their rate of AAE production was lower”
e5“We have extended their findings by studying both UAE and AAE for the first time in Thuja and also Tasmannia, another vessel-less species”
Title
Monitoring of Ultrasonic and Audible Emissions from Plants With or Without Vessels
K. T. RITMAN; J. A. MILBURN Journal of Experimental Botany 1991. doi:10.1093/jxb/42.1.123
Other claims from this paper (11)
- Observation Audio acoustic emissions were attenuated less and travelled further than ultrasonic emissions in plant materials generally.
- Observation Audio acoustic emissions travelled considerably more than 40 mm in all species tested.
- Observation Ultrasonic emissions in Thuja were transmitted up to 40 mm.
- Observation Ultrasonic emissions in a range of other species were transmitted only up to 10 mm.
- Observation Tasmannia produced fewer audio acoustic emissions than ultrasonic emissions.
- Observation In Ricinus, audio acoustic emissions tended to predominate over ultrasonic emissions.
- Observation Ultrasonic emissions were produced in abundance when excised stem tissue was dehydrated.
- Observation The dual-probe technique is useful for locating sites of cavitation in whole plants.
- Observation Audio acoustic emission detection ranged from 0.13% to 5.1% of counting units.
- Observation Ultrasonic emission detection was considerably greater, ranging from 27% to 76%.
- Mechanism Tracheids may produce audio acoustic emissions, so vessels are not essential for them.