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izvor podataka: crosbi

Chloroplast structure and function in wild-type and aurea-type leaves of the Japanese spindle-tree over their life span (CROSBI ID 100278)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Ljubešić, Nikola ; Wrischer, Mercedes ; Prebeg, Tatjana ; Devide, Zvonimir Chloroplast structure and function in wild-type and aurea-type leaves of the Japanese spindle-tree over their life span // Acta botanica Croatica, 62 (2003), 1; 1-10-x

Podaci o odgovornosti

Ljubešić, Nikola ; Wrischer, Mercedes ; Prebeg, Tatjana ; Devide, Zvonimir

engleski

Chloroplast structure and function in wild-type and aurea-type leaves of the Japanese spindle-tree over their life span

The evergreen leaves of the Japanese spindle-tree (Euonymus japonicus Thund "Aureomarginatus") are adapted to endure repeated freezing and thawing during the winter. We investigated the physiological and morphological characteristics of the chloroplasts in young, overwintering, and overwintered wild-type and aurea-type leaves. When developing in the shade, both leaf types during their life span maintained a well-develpoed thylakoid system in their chloroplasts. The photosynthesis rates were also similar. When growing in intense sunlight, the aurea ariety contained chloroplasts with a reduced thylakoid system, but photosynthesis was less reduced. In spring, overwintered leaves of both varieties clearly showed ultrastructural and physiological characteristics of senescence. The senescence of aurea leaves exposed to full sunlight was more pronounced.

Euonymus japonicus; wild-type plant; aurea-variety; overwintered leaves; chloroplast; ultrastructure; photosynthesis

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Podaci o izdanju

62 (1)

2003.

1-10-x

objavljeno

0365-0588

Povezanost rada

Biologija

Indeksiranost