Transitions in the nutation trajectory geometry in peppermint (Mentha x piperita L.) with respect to lunisolar acceleration

Urszula Zajączkowska , Włodzimierz Kasprzak , Marek Nałęcz


Nutations of plant organs are significantly affected by the circatidal modulation in the gravitational force exerted by the Moon and Sun (lunisolar tidal acceleration, Etide). In a previous study on nutational rotations of stem apices, we observed abrupt alterations in their direction and irregularities of the recorded trajectories. Such transitions have not yet been analysed in detail. Peppermint plants were continuously recorded with timelapse photography and aligned with contemporaneous time courses of the Etide estimates. Each nutational stem‐tip movement path was assigned to one of two groups, depending on its geometry, as follows: (i) regular elliptical movements and (ii) irregular movements (with a random type of trajectory). Analysis of the correlation between the plant nutation trajectory parameters and Etide as well as analysis of the trajectory geometry of the individual plants were performed. The trajectory geometry of young mint stem apices was related to the velocity of the apex rotation and significantly affected by the gravitational force estimated from the Etide. A low velocity of nutational movement, associated with the random character of the trajectory, usually occurred simultaneously with local minima or maxima of Etide. When the mint plant gets older, the transitions in the stem‐tip trajectory were limited; no correspondence with Etide dynamics was observed. The results indicated that the plant tip geometry path transitions with respect to the changing gradient of lunisolar tidal acceleration could be interpreted as manifestation of a continuous accommodation of the shoot apical part to the state of minimum energy dissipation.
Author Urszula Zajączkowska
Urszula Zajączkowska,,
, Włodzimierz Kasprzak (FEIT / AK)
Włodzimierz Kasprzak,,
- The Institute of Control and Computation Engineering
, Marek Nałęcz (FEIT / PE)
Marek Nałęcz,,
- The Institute of Electronic Systems
Journal seriesPlant Biology, ISSN 1435-8603, e-ISSN 1438-8677, (A 35 pkt)
Issue year2019
Publication size in sheets1.05
Keywords in EnglishEtide, gravity, internal oscillator, lunisolar acceleration, Mentha, nutation, plant movement, trajectory geometry
ASJC Classification1110 Plant Science; 1105 Ecology, Evolution, Behavior and Systematics; 2700 General Medicine
Languageen angielski
zajaczkowska_Transition_Plant_Biology_2018.pdf 1.06 MB
Score (nominal)35
ScoreMinisterial score = 35.0, 18-12-2018, ArticleFromJournal
Ministerial score (2013-2016) = 35.0, 18-12-2018, ArticleFromJournal
Publication indicators Scopus SNIP (Source Normalised Impact per Paper): 2016 = 0.853; WoS Impact Factor: 2017 = 2.156 (2) - 2017=2.411 (5)
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