Results 21 to 30 of about 126,827 (208)

A minimal mathematical model of nonphotochemical quenching of chlorophyll fluorescence [PDF]

open access: yes, 2010
Copyright © 2010 Elsevier Ireland Ltd.
Ebenhöh, Oliver   +4 more
core   +1 more source

Evaluation of the Condition of Respiration and Photosynthesis by Measuring Chlorophyll Fluorescence in Cyanobacteria

open access: yesBio-Protocol, 2018
Chlorophyll fluorescence measurements have been widely used to monitor the condition of photosynthesis. Furthermore, chlorophyll fluorescence from cyanobacteria reflects the condition of respiration, since cyanobacterial photosynthesis shares several ...
Takako Ogawa, Kintake Sonoike
doaj   +1 more source

High throughput analysis of leaf chlorophyll content in sorghum using RGB, hyperspectral, and fluorescence imaging and sensor fusion

open access: yesPlant Methods, 2022
Background Leaf chlorophyll content plays an important role in indicating plant stresses and nutrient status. Traditional approaches for the quantification of chlorophyll content mainly include acetone ethanol extraction, spectrophotometry and high ...
Huichun Zhang   +5 more
doaj   +1 more source

Rapid colour changes in Euglena sanguinea (Euglenophyceae) caused by internal lipid globule migration [PDF]

open access: yes, 2018
The accumulation of red pigments under chronic stress is a response observed in most groups of oxygenic photoautotrophs. It is thought that the red pigments in the cell shield the chlorophyll located underneath from the light. Among these red pigments,
Abramoff M.D.   +11 more
core   +3 more sources

Analysis of initial chlorophyll fluorescence induction kinetics in chloroplasts in terms of rate constants of donor side quenching release and electron trapping in photosystem II [PDF]

open access: yes, 2008
The fluorescence induction F(t) of dark-adapted chloroplasts has been studied in multi-turnover 1 s light flashes (MTFs). A theoretical expression for the initial fluorescence rise is derived from a set of rate equations that describes the sequence of ...
Vredenberg, W.J.
core   +2 more sources

Effects of Chitosan as Growth Elicitor on Some Growth Parameters and Essential Oils Yield of Dracocephalium moldavica L. Under Salinity Condition [PDF]

open access: yesJournal of Agricultural Science and Sustainable Production, 2020
Plant growth and development are adversely affected by salinity. In order to evaluate the effects of different salinity levels and application of chitosan on some growth parameters, photosynthesis pigments and essential oils content and yield of ...
gholamreza gohari   +1 more
doaj  

Chlorophyll Fluorescence Imaging-Based Duckweed Phenotyping to Assess Acute Phytotoxic Effects

open access: yesPlants, 2021
Duckweeds (Lemnaceae species) are extensively used models in ecotoxicology, and chlorophyll fluorescence imaging offers a sensitive and high throughput platform for phytotoxicity assays with these tiny plants.
Viktor Oláh   +3 more
doaj   +1 more source

Long-term effects of red- and blue-light emitting diodes on leaf anatomy and photosynthetic efficiency of three ornamental pot plants [PDF]

open access: yes, 2017
Light quality critically affects plant development and growth. Development of light-emitting diodes (LEDs) enables the use of narrow band red and/or blue wavelengths as supplementary lighting in ornamental production.
Van Labeke, Marie-Christine   +1 more
core   +3 more sources

Fresh perspectives on an established technique: Pulsed amplitude modulation chlorophyll a fluorescence

open access: yesPlant-Environment Interactions, 2022
Pulsed amplitude modulation (PAM) chlorophyll a fluorescence provides information about photosynthetic energy transduction. When reliably measured, chlorophyll a fluorescence provides detailed information about critical in vivo photosynthetic processes ...
Guanqiang Zuo   +6 more
doaj   +1 more source

Effect of leaf damage on chlorophyll fluorescence parameters of Eupatorium adenophorum and its genera [PDF]

open access: yesMATEC Web of Conferences, 2022
Eupatorium adenophorum has a serious impact on agriculture and biodiversity in China. Chlorophyll fluorescence parameters of E. adenophorum and its genera were investigated after leaf damage treatments.
Chen Yingzhi   +4 more
doaj   +1 more source

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