Ultrastructural and functional changes in the chloroplasts of detached barley leaves senescing under dark and light conditions.

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15410%2F03%3A00001527" target="_blank" >RIV/61989592:15410/03:00001527 - isvavai.cz</a>

Alternative codes found

RIV/61989592:15310/03:00001527

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Ultrastructural and functional changes in the chloroplasts of detached barley leaves senescing under dark and light conditions.

Original language description

Changes in the chloroplast ultrastructure and photochemical function were studied in detached barley (Hordeum vulgare L. cv. Akcent) leaf segments senescing in darkness or in continuous white light of moderate intensity (90 micromol m-2 s-1) for 5 days.A rate of senescence-induced chlorophyll degradation was similar in the dark- and light-senescing segments. The Chl a/b ratio was almost unchanged in the dark-senescing segments whereas in the light-senescing segments an increase in this ratio was observed indicating a preferential degradation of light-harvesting complexes of photosystem II. A higher level of thylakoid disorganization (especially of granal membranes) and a very high lipid peroxidation were observed in the light-senescing segments. In spite of these findings, both the maximal and actual photochemical quantum yields of the photosystem II were highly maintained in comparison with the dark-senescing segments.

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

<a href="/en/project/GP522%2F01%2FP098" target="_blank" >GP522/01/P098: Effect of flight and plant integrity on functional and structural changes of thylakoid membranes during senescence</a><br>

Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2003

Confidentiality

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

Name of the periodical

Journal of Plant Physiology

ISSN

0176-1617

e-ISSN

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Volume of the periodical

160

Issue of the periodical within the volume

N

Country of publishing house

DE - GERMANY

Number of pages

8

Pages from-to

1051-1058

UT code for WoS article

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EID of the result in the Scopus database

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