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Plant shoots exhibit synchronized oscillatory motions
Marzena Ciszak1, Elisa Masi2, František Baluška3
1Gonzaga University in Florence, Florence, Italy; CNR-Istituto Nazionale di Ottica, Florence, Italy.
Communicative & Integrative Biology
|November 11, 2016
Summary
Plants exhibit synchronized movements when grown together. Maize seedlings show coordinated, in-phase or anti-phase oscillations, indicating collective behavior and increased growth rates.
Area of Science:
- Plant biology
- Biophysics
- Ecology
Background:
- Animal collective behaviors, such as flocking and schooling, are well-documented.
- Land plants are typically considered sessile, limiting their observable collective behaviors.
- Understanding plant interactions is crucial for ecological and agricultural insights.
Purpose of the Study:
- To investigate potential collective behaviors in land plants.
- To analyze synchronized movements in emergent maize plants.
- To explore the biophysical mechanisms underlying plant interactions.
Main Methods:
- Observational studies of maize plants grown in groups.
- Analysis of synchronized oscillatory motions during leaf emergence.
- Correlation of oscillations with growth rate and photosynthetic activity.
Main Results:
- Emergent maize plants display synchronized oscillatory motions, either in-phase or anti-phase.
- These oscillations occur in bursts during leaf rupture from the coleoptile tip.
- Oscillations correlate with a sudden increase in plant growth rate, possibly linked to photosynthesis.
Conclusions:
- Plant shoots can function as a complex network of interacting biological oscillators.
- Biophysical links, such as chemical or electrical signals, may mediate these collective plant behaviors.
- This study reveals a novel form of collective behavior in plants, challenging the notion of their sessile nature.
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