arabidopsis: Statistics on Chlorophyll Fluorescence Parameters

In gaussratiovegind: Distribution of Gaussian Ratios

Statistics on Chlorophyll Fluorescence Parameters

Description

Mean and standard deviation values on healthy and diseased tissues of chlorophyll fluorescence parameters F_0 (minimum fluorescence) and F_m (maximum fluorescence) for a dataset of Arabidopsis thaliana plants infected with fungal pathogen data; parameters of the distribution of the ratio \displaystyle{\frac{F_v}{F_m} = \frac{F_m - F_0}{F_m}}.

Usage

arabidopsis

Format

A data frame with 10 rows and 6 columns:

time

times of the acquisition of chlorophyll fluorescence images

condition

indicates if the plant was inoculated: healthy (inoculated with water) or diseased (inoculated with the pathogen)

mF0, sF0

Mean and standard deviation values of the chlorophyll parameter F_0

mFm, sFm

Mean and standard deviation values of the chlorophyll parameter F_m

beta, rho, delta

the \beta, \rho and \delta_y parameters of the distribution of \displaystyle{\frac{F_v}{F_m} = \frac{F_m - F_0}{F_m}} (distributed according to a normal ratio distribution, see Details)

Details

On each leaf picture, the F_0 and F_m values are normally distributed. Hence, \displaystyle{\frac{F_0}{F_m}} is a ratio of two normal distributions.

Let \mu_{F_0} and \sigma_{F_0} the mean and standard deviation of F_0 and \mu_{F_m} and \sigma_{F_m} the mean and standard deviation of F_m. The parameters \beta, \rho and \delta_y are given by:

\beta = \frac{\mu_{F_0}}{\mu_{F_m}}

\rho = \frac{\sigma_{F_m}}{\sigma_{F_0}}

\delta_y = \frac{\sigma_{F_m}}{\mu_{F_m}}

References

El Ghaziri, A., Bouhlel, N., Sapoukhina, N., Rousseau, D., On the importance of non-Gaussianity in chlorophyll fluorescence imaging. Remote Sensing 15(2), 528 (2023). \Sexpr[results=rd]{tools:::Rd_expr_doi("10.3390/rs15020528")}

Pavicic, M., Overmyer, K., Rehman, A.u., Jones, P., Jacobson, D., Himanen, K. Image-Based Methods to Score Fungal Pathogen Symptom Progression and Severity in Excised Arabidopsis Leaves. Plants, 10, 158 (2021). \Sexpr[results=rd]{tools:::Rd_expr_doi("10.3390/plants10010158")}

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