The arrangement of chloroplast in cells influences the reabsorption of chlorophyll fluorescence emission. The effect of desiccation on the chlorophyll fluorescence spectra of Rhizomnium punctatum leaves

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F99%3A00000741" target="_blank" >RIV/61989592:15310/99:00000741 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

The arrangement of chloroplast in cells influences the reabsorption of chlorophyll fluorescence emission. The effect of desiccation on the chlorophyll fluorescence spectra of Rhizomnium punctatum leaves

Original language description

Chlorophyll fluorescence spectra measured with leaves are distorted by the effect of fluorescence reabsorption. A heterogeneous theoretical model describing the effect of chloroplast arrangement in a cell on the distortion of chlorophyll fluorescence spectra due to reabsorption was formulated. Desiccation of leaves of a moss Rhizomnium punctatum was carried out as a simple model experiment. The parameters entering the model (maximal number of chloroplasts forming columns in a cell, chloroplast size andchlorophyll concentration in a chloroplast) were estimated by means of light microscopy and spectrophotometry. During the desiccation, a grouping of chloroplasts was observed by light microscopy and the chlorophyll fluorescence emission and excitation s pectra of the leaves were measured at room temperature and at 77 K. The leaves were infiltrated with DCMU. The ratio F685/F735 of the main emission bands decreased by about 50 % at room temperature and by about 30 % at 77 K upon decreasing

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BO - Biophysics

OECD FORD branch

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Project

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Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

1999

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Photosynthesis Research

ISSN

0166-8595

e-ISSN

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Volume of the periodical

62

Issue of the periodical within the volume

1

Country of publishing house

XX - stateless person

Number of pages

10

Pages from-to

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UT code for WoS article

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EID of the result in the Scopus database

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