Non-invasive monitoring of hydraulic surge propagation in a wounded tobacco plant

0497460 - FZÚ 2019 RIV GB eng J - Journal Article
Nožková, V. - Šmíd, Petr - Horváth, P. - Hrabovský, M. - Ilík, P.
Non-invasive monitoring of hydraulic surge propagation in a wounded tobacco plant.
Plant Methods. Roč. 14, May (2018), s. 1-9, č. článku 38. E-ISSN 1746-4811
Institutional support: RVO:68378271
Keywords : hydraulic surge * light diffraction * local burning * stem deformation * tobacco
OECD category: Optics (including laser optics and quantum optics)
Impact factor: 3.170, year: 2018
https://plantmethods.biomedcentral.com/track/pdf/10.1186/s13007-018-0307-6

Background: When a plant is wounded, a rapid hydraulic surge, acting probably as a systemic signal, spreads from the site of injury throughout the plant and leads to small transient deformation of tissues. So far, the propagation of hydraulic surge has been monitored by contact and thus potentially invasive methods. Results: Here we present a non-invasive optical method, which allows simultaneous monitoring of micrometric shift of two opposite stem margins. The usefulness of this method was demonstrated by the measurement of the hydraulic surge propagation in a tobacco (Nicotiana tabacum (L.) cv. Samsun) after burning of its upper leaf. We have observed transient narrowing the stem below the burned leaf, which started within a few minutes after local burning. The comparison of the shift of the stem margin following vascular trace of the burned leaf and the margin on the opposite side of the stem has revealed that the stem deformation is highly asymmetric.

Permanent Link: http://hdl.handle.net/11104/0290025