IMPACT OF LIGHT ON PLANT ELECTROME: ANALYSIS OF COMPLEXITY, CHAOTIC BEHAVIOR, AND SIGNAL ENERGY

João Gabriel Moreira de Souza; Gustavo Maia Souza; Gabriela Reissig; Thiago Francisco de Carvalho Oliveira; Adrya Vanessa Lira Costa; Douglas Posso

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Submission

Paper Title

IMPACT OF LIGHT ON PLANT ELECTROME: ANALYSIS OF COMPLEXITY, CHAOTIC BEHAVIOR, AND SIGNAL ENERGY

Authors

João Gabriel Moreira de Souza
Gustavo Maia Souza
Gabriela Reissig
Thiago Francisco de Carvalho Oliveira
Adrya Vanessa Lira Costa
Douglas Posso

Modality

Abstract

Subject area

Plant Physiology

Publishing Date

26/09/2022

Country of Publishing

Brasil

Language of Publishing

Inglês

Paper Page

https://www.even3.com.br/anais/cbfv2022_registration/511926-impact-of-light-on-plant-electrome--analysis-of-complexity-chaotic-behavior-and-signal-energy

ISBN

978-65-5941-830-5

Keywords

electrical signals, environmental stimuli, Phaseolus vulgaris L., plant electrophysiology

Summary

Several environmental factors influence plant electroma. Light is directly related to photosynthesis, and studies have shown that electrical signals play a role in this process. Thus, it is expected for the electrical activity of the plant to carry information about different light conditions. The objective was to evaluate the electroma of bean plants after periods of light exposure and to verify differences in complexity, chaotic behavior and signal energy between treatments. Bean plants (Phaseolus vulgaris L.) were subjected to light stimuli for 5 and 10 min on the leaf. An adapted LED light source was used. Bioelectrical measurements were performed using the electrophytogram method with the Biopac Student Lab System (MP-36). Data were presented in voltage variation (µV). The time series obtained were analyzed to approximate entropy (ApEn), Detrended Fluctuation Analysis (DFA), Lyapunov exponent, Average Band Power (ABP), and Time Dispersion Analysis of Features (TDAF). The 5-minute stimulus did not cause changes in complexity (ApEn), long-term memory (DFA), and low frequencies (Low and Delta). However, a decrease in the chaotic level of the series was found during stimulus. We also found a reduction in energy of Theta frequencies that lasted for more than 30 minutes after the end of the stimulus application. For the 10-minute stimulus, we found an increase in complexity during the application and a more significant autocorrelation throughout the measurement. On the other hand, the frequencies obtained a gain in energy for all bands analyzed, with emphasis on the Theta frequencies, with the highest gain. The data showed that the time of light exposure causes different results, and this change may have several factors. This behavior is supported by the alteration of low frequencies, which demonstrates that the entire physiological apparatus behind the electroma may have been modified due to the light stimulus.

Title of the Event: XVIII Brazilian Congress of Plant Physiology and I Ibero-latinoamerican Congress of Plant Biology
City of the Event: Porto Alegre
Title of the Proceedings of the event: Annals of the Brazilian Congress of Plant Physiology and Ibero-latinamerican Congress of Plant Biology
Name of the Publisher: Even3
Means of Dissemination: Meio Digital

How to cite

SOUZA, João Gabriel Moreira de et al.. IMPACT OF LIGHT ON PLANT ELECTROME: ANALYSIS OF COMPLEXITY, CHAOTIC BEHAVIOR, AND SIGNAL ENERGY.. In: Annals of the Brazilian Congress of Plant Physiology and Ibero-latinamerican Congress of Plant Biology. Anais...Porto Alegre(RS) CEPUCRS, 2022. Available in: https//www.even3.com.br/anais/cbfv2022_registration/511926-IMPACT-OF-LIGHT-ON-PLANT-ELECTROME--ANALYSIS-OF-COMPLEXITY-CHAOTIC-BEHAVIOR-AND-SIGNAL-ENERGY. Access in: 25/04/2025