Wavelet analysis of pulse-amplitude-modulated chlorophyll fluorescence for differentiation of plant samples

Guo, Ya; Zhou, Yesen; Tan, Jinglu

doi:10.1016/j.jtbi.2015.01.041

Cited by 13 publications

(11 citation statements)

References 18 publications

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“…Overall, La effects on photosynthetic pigments could be time-dependent. Effect of La on Chl fluorescence parameters: Chl fluorescence parameters reflect the physiology and mechanism of photosynthesis, which are not only the indicator of the light-use efficiency, but the evaluation index of the plant under environmental stresses (Janka et al 2013, Guo et al 2015, Banks 2018, Hanelt 2018, Dai and Shan 2019. Fv/Fm exhibits the maximal efficiency of PSII photochemistry, which is stable in general.…”

Section: Discussionmentioning

confidence: 99%

Lanthanum chloride enhances the photosynthetic characteristics and increases konjac glucomannan contents in Amorphophallus sinensis Belval

Li¹,

Yu²,

Dong³

et al. 2020

Photosynt.

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Lanthanum (La) has been used as agricultural inputs in order to enhance yield and improve crop quality. However, little is known about the effect of La on the photosynthesis and growth of Amorphophallus sinensis, a worldwide food source. The effects of La on the photosynthetic and chlorophyll fluorescence parameters, photosynthetic pigments, corm yield, and konjac glucomannan (KGM) of Amorphophallus sinensis were investigated via field experiments. The leaves were sprayed with different concentrations of LaCl3 (20, 80, 160, and 240 mg L-1). The results exhibited an increasing effect of LaCl3 on photosynthetic rate, stomatal conductance, intercellular CO2 concentration, chlorophyll fluorescence parameters, photosynthetic pigments, corm yield, and KGM, when concentration was between 20 and 240 mg L-1 , and the most effective concentration was 160 mg L-1. Therefore, moderate LaCl3 concentration may increase yield of Amorphophallus sinensis by enhancing the photosynthetic efficiency, increasing the corm yield, and KGM contents.

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Section: Discussionmentioning

confidence: 99%

Lanthanum chloride enhances the photosynthetic characteristics and increases konjac glucomannan contents in Amorphophallus sinensis Belval

Li¹,

Yu²,

Dong³

et al. 2020

Photosynt.

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“…In particular, the use of WT makes it possible to detect changes in biological systems at earlier stages in comparison with manual analysis. Thus, the plant stress-reaction to cooling and shading (detected by the chlorophyll fluorescence) was revealed after 1 h of exposure using wavelet transform and only after 24 h without processing [66].…”

Section: Discussionmentioning

confidence: 99%

Automatic Determination of the Parameters of Electrical Signals and Functional Responses of Plants Using the Wavelet Transformation Method

et al. 2019

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Smart agriculture management systems with real-time control of plant health and vegetation are recognized as one of the crucial technologies determining agriculture development, playing a fundamental role in reducing yield losses and improving product quality. The earliest plant responses to various adverse factors are propagating stress signals, including electrical ones, and the changes in physiological processes induced by them. Among the latter, photosynthesis is of particular interest due to its key role in the production process. Of practical importance, photosynthesis activity can be registered not only in contact mode but by remote sensing using optical methods. The aim of the present work was to develop the approach to automatic determination of the main parameters of electrical signals and changes in photosynthesis activity and transpiration using continuous wavelet transform (CWT). Applying CWT based on derivatives of the Gaussian function allows accurate determination of the parameters of electrical signals as well as induced physiological responses. Moreover, CWT was applied for spatio-temporal mapping of the photosynthesis response to stress factors in pea leaf. The offered approach allowed automatic identification of the response start time in every pixel and visualization of the change propagation front. The results indicate high potential of CWT for automatic assessment of plants stress, including monitoring of plant health in large-scale agricultural lands and automated fields.

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“…All the leaves in this set of experiments were kept in 2°C. Wet paper towels were applied on both sides of each leave sample to keep it moist (Guo et al, 2015). ChlF was measured each morning and night in 12-hour intervals five times.…”

Section: Methodsmentioning

confidence: 99%

“…The OJIP curve contains abundant information about the process of photosynthesis: the absorption and conversion of light energy, the transfer and distribution of energy, the state of the reaction centers, the activities of the PSII donors and the receptors, plastoquinone (PQ) pool size and the activities, excess light energy and its dissipation, photosynthetic light suppression, and light damage. ChlF induction has been extensively used in the literature to analyze plant photosynthesis and physiological conditions (Ogaya et al, 2011; Schansker et al, 2014; Guo & Tan, 2015; Guo et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

Sensing Plant Physiology and Environmental Stress by Automatically Tracking F_j and F_i Features in PSII Chlorophyll Fluorescence Induction

Xia

Tan

Cheng

et al. 2018

Preprint

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1 2 Following a step excitation, chlorophyll fluorescence (ChlF) from photosystem II of a 1 3 dark-adapted plant leaf exhibits the well-known OJIP pattern. The OJIP induction has 1 4 been widely applied in plant science, agriculture engineering, and environmental 1 5 engineering. While the J and I phases are related to transitions of photochemical 1 6 reaction redox states, characteristic fluorescence intensities for the two phases (F j and 1 7

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Wavelet analysis of pulse-amplitude-modulated chlorophyll fluorescence for differentiation of plant samples

Cited by 13 publications

References 18 publications

Lanthanum chloride enhances the photosynthetic characteristics and increases konjac glucomannan contents in Amorphophallus sinensis Belval

Lanthanum chloride enhances the photosynthetic characteristics and increases konjac glucomannan contents in Amorphophallus sinensis Belval

Automatic Determination of the Parameters of Electrical Signals and Functional Responses of Plants Using the Wavelet Transformation Method

Sensing Plant Physiology and Environmental Stress by Automatically Tracking F_j and F_i Features in PSII Chlorophyll Fluorescence Induction

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Wavelet analysis of pulse-amplitude-modulated chlorophyll fluorescence for differentiation of plant samples

Cited by 13 publications

References 18 publications

Lanthanum chloride enhances the photosynthetic characteristics and increases konjac glucomannan contents in Amorphophallus sinensis Belval

Lanthanum chloride enhances the photosynthetic characteristics and increases konjac glucomannan contents in Amorphophallus sinensis Belval

Automatic Determination of the Parameters of Electrical Signals and Functional Responses of Plants Using the Wavelet Transformation Method

Sensing Plant Physiology and Environmental Stress by Automatically Tracking Fj and Fi Features in PSII Chlorophyll Fluorescence Induction

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Sensing Plant Physiology and Environmental Stress by Automatically Tracking F_j and F_i Features in PSII Chlorophyll Fluorescence Induction