Resolution of kinetic system of simultaneous degradations of chlorophyll a and b by PARAFAC

Tan, Yan‐Xi; Jiang, Jian‐Hui; Cui, Hui; Yu, Ru‐Qin

doi:10.1016/s0003-2670(99)00813-2

Cited by 53 publications

(29 citation statements)

References 25 publications

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“…The decrease in the ratios Chl a:b and Chl total :Carot in plants of C.echinata after periods of exposure to direct sunlight (Figure 4) is one of the immediate responses of shade species when exposed to higher irradiance (Demmig-Adams and Adams, 2006;Morais et al, 2007;Magalhães et al, 2009) light-gathering antennas (Kitajima and Hogan, 2003;Laisk et al, 2005;Magalhães et al, 2009). This strategy protects the photosystems from photo-oxidative damage caused by high irradiance (Tan et al, 2000;Marenco et al, 2001;Reyes-Díaz et al, 2009). However, the continuous reduction in photosynthetic pigments after exposure of C. echinata to full sunlight shows its preference for less illuminated environments.…”

Section: Discussionmentioning

confidence: 99%

Morphological and physiological adjustments of Brazilwood (Caesalpinia echinata Lam.) to direct solar radiation

Mengarda

Milanez

Silva

et al. 2012

Braz. J. Plant Physiol.

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This study aimed to characterize the alarm and resistance phases of stress of Caesalpinia echinata under intense irradiance in order to better define its position on forest succession. The alarm phase was identified by rapid reduction in the maximum quantum yield of PSII primary photochemical reactions (φP0 = F V /F M ) and Performance Index (PI ABS ) followed by total leaf abscission in the first week of exposure to direct sunlight. The new leaves grown showed recovery of chlorophyll a parameters, increase in blade thickness, elongation of the palisade and spongy parenchymas, higher water content, and reduction of specific leaf area. These changes were associated with the osmoprotector of sucrose and antioxidative of raffinose effects, which indicate an efficient adjustment system to intense irradiance in the resistance phase of stress. However, the continuous decrease in photosynthetic pigments in the resistance phase combined with the photodamage in the fluorescence of Chl a and total abscission of leaves in the alarm phase are strong indications that C. echinata is a shade and late or climax species in forest succession.

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Section: Discussionmentioning

confidence: 99%

Morphological and physiological adjustments of Brazilwood (Caesalpinia echinata Lam.) to direct solar radiation

Mengarda

Milanez

Silva

et al. 2012

Braz. J. Plant Physiol.

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“…For example, Tan et al studied a kinetic system that involved simultaneous degradations of chlorophyll a and b using a three-way resolution method based on PARAFAC analysis. 23 Moreover, an interesting application of kinetic determination coupled with chemometrics was paid special attention concerning drug analysis 24 in biological samples and contaminants in environmental monitoring. 25,26 In the present work, a kinetic fluorometric method for the quantitative analysis of EP in human plasma samples was demonstrated, which depends on the transformation of EP to the corresponding fluorescent intermediate product and further to o-quinone.…”

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confidence: 99%

Quantitative Analysis of Epinephrine in Human Plasma Samples Using Kinetic Fluorometric Method Combined with Second-order Calibration

Xia

Zhu

et al. 2009

ANAL. SCI.

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A kinetic fluorometric method was proposed for the quantitative determination of epinephrine (EP) in human plasma samples with the aid of second-order calibration methods based on alternating trilinear decomposition (ATLD) and alternating fitting residue (AFR) algorithms. It was based on that EP could be gradually converted to a highly fluorescent intermediate product by an oxidation reaction, and further to a non-fluorescent degradation product (o-quinone). These methodologies fully exploit the second-order advantage of the employed three-way kinetic fluorescence data, allowing the concentrations of EP to be quantified even in the presence of uncalibrated interferences. The average recoveries obtained from ATLD and AFR with a factor number of 2 (N = 2) were 100.7 ± 3.3 and 100.4 ± 2.2%, respectively. In addition, elliptical joint confidence region (EJCR) tests as well as figures of merit (FOM) were employed to evaluate the accuracy of the two algorithms.

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“…The first example of processing four-way time-evolving EEFMs was the modeling of the degradation of chlorophylls a and b extracted from spinach by Tan et al, although the procedure was not used for analytical determination of the studied chlorophylls [40]. On the strictly analytical side, several successful third-order multivariate calibrations have been developed using an analogous strategy.…”

Section: Kinetic-eefm Third-order Datamentioning

confidence: 99%

Unfolded and Multiway Partial Least-Squares with Residual Multilinearization

Olivieri

Escandar

Goicoechea

et al. 2015

Data Handling in Science and Technology

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Resolution of kinetic system of simultaneous degradations of chlorophyll a and b by PARAFAC

Cited by 53 publications

References 25 publications

Morphological and physiological adjustments of Brazilwood (Caesalpinia echinata Lam.) to direct solar radiation

Morphological and physiological adjustments of Brazilwood (Caesalpinia echinata Lam.) to direct solar radiation

Quantitative Analysis of Epinephrine in Human Plasma Samples Using Kinetic Fluorometric Method Combined with Second-order Calibration

Unfolded and Multiway Partial Least-Squares with Residual Multilinearization

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