Modelling chlorophyll fluorescence of kiwi fruit (Actinidia deliciosa).

18:02 EDT 31st March 2015 | BioPortfolio

Summary of "Modelling chlorophyll fluorescence of kiwi fruit (Actinidia deliciosa)."

Kiwi fruit displays chlorophyll fluorescence. A physical model was developed to reproduce the observed original fluorescence for the whole fruit, from the emission of the different parts of the kiwi fruit. The spectral distribution of fluorescence in each part of the fruit, was corrected to eliminate distortions due to light re-absorption and it was analyzed in relation to photosystem II-photosystem I ratio. Kiwi fruit also displays variable chlorophyll-fluorescence, similar to that observed from leaves. The maximum quantum efficiency of photosystem II photochemistry (F(v)/F(m)), the quantum efficiency of photosystem II (Φ(PSII)), and the photochemical and non-photochemical quenching coefficients (q(P) and q(NP) respectively) were determined and discussed in terms of the model developed. The study was extended by determining the photosynthetic parameters as a function of the storage time, at both 4 °C and room temperature for 25 days.

Affiliation

INQUIMAE/Dpto. de Química Inorgánica, Analítica y Química Física, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Pabellón II, 1er piso, C1428EHA, Buenos Aires, Argentina. mgl@qi.fcen.uba.ar.

Journal Details

This article was published in the following journal.

Name: Photochemical & photobiological sciences : Official journal of the European Photochemistry Association and the European Society
ISSN: 1474-9092
Pages: 724-30

Links

PubMed Articles [4207 Associated PubMed Articles listed on BioPortfolio]

Kiwi fruit (Actinidia chinensis) quality determination based on surface acoustic wave resonator combined with electronic nose.

Abstract In this study, electronic nose (EN) combined with a 433 MHz surface acoustic wave resonator (SAWR) was used to determine Kiwi fruit quality under twelve-day storage. EN responses to Kiwi sam...

Studies of tropical fruit ripening using three different spectroscopic techniques.

ABSTRACT. We present a noninvasive method to study fruit ripening. The method is based on the combination of reflectance and fluorescence spectroscopies, as well as gas in scattering media absorption ...

Photosynthetic acclimation of Nannochloropsis oculata investigated by multi-wavelength chlorophyll fluorescence analysis.

Multi-wavelength chlorophyll fluorescence analysis was utilised to examine the photosynthetic efficiency of the biofuel-producing alga Nannochloropsis oculata, grown under two light regimes; low (LL) ...

Chlorophyll fluorescence induction, chlorophyll content, and chromaticity characteristics of leaves as indicators of photosynthetic apparatus senescence in arboreous plants.

Parameters of chlorophyll fluorescence induction (CFI) are widely used for assessment of the physiological state of higher plant leaves in biochemical, physiological, and ecological studies and in agr...

PsbS is required for systemic acquired acclimation and post-excess-light-stress optimization of chlorophyll fluorescence decay times in Arabidopsis.

Systemic acquired acclimation (SAA) is an important light acclimatory mechanism that depends on the global adjustments of non-photochemical quenching and chloroplast retrograde signaling. As the exact...

Clinical Trials [197 Associated Clinical Trials listed on BioPortfolio]

The Effect of Kiwi on Blood Pressure, Endothelial Function, Antioxidant Capacity and Gene Expression

The purpose of this study is to determine whether the intake of kiwi fruits will reduce systolic and diastolic blood pressure compared to intake of apples. The investigators hypothesize th...

The Effects of PG102, a Water Soluble Extract From Actinidia Arguta, on Serum Total IgE Levels

The aim of this study was to evaluate the efficacy of PG102 at lowering levels of total IgE in asymptomatic subjects with atopy.

Effect of Fruit and Vegetables on Insulin Resistance

Current evidence indicates that fruit and vegetable intake and dietary patterns rich in fruit and vegetables may be associated with reduced insulin resistance and may reduce the risk of th...

The Fish and Fruit Study: Trial of Fish and Fruit to Improve Survival of Aboriginal People With End Stage Renal Disease

Cardiovascular disease is the main cause of death in patients on dialysis for end stage renal disease. Omega-3 fatty acids and antioxidants have been shown to be protective in the general ...

Pilot Study of Lychee Fruit Extract to Promote Cardiovascular Health

The investigators hypothesize that acute and short term consumption of a lychee fruit extract, particularly rich in low molecular weight dietary flavanols, will improve vascular function a...

Medical and Biotech [MESH] Definitions

A plant family of the order Theales, subclass Dilleniidae, class Magnoliopsida. It is best known for Kiwi fruit (ACTINIDIA).

Measurement of the intensity and quality of fluorescence.

Widely distributed unicellular or multicellular bacteria. The CYANOBACTERIA use chlorophyll a and phycobilins for oxygenic photosynthesis while genera in the Prochlorales use both chlorophyll a and b but not phycobilins.

An analytical method for detecting and measuring FLUORESCENCE in compounds or targets such as cells, proteins, or nucleotides, or targets previously labeled with FLUORESCENCE AGENTS.

A type of FLUORESCENCE SPECTROSCOPY using two FLUORESCENT DYES with overlapping emission and absorption spectra, which is used to indicate proximity of labeled molecules. This technique is useful for studying interactions of molecules and PROTEIN FOLDING.

Search BioPortfolio:
Loading
Advertisement
Advertisement