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Iron Deficiency in the Blue-Green Alga Anacystis nidulans: Fluorescence and Absorption Spectra Recorded at 77°K (1974)

ÖQUIST, GUNNAR

Oxford, UK : Blackwell Publishing Ltd

Physiologia plantarum 31 (1974), S. 0

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ISSN: 1399-3054

Source: Blackwell Publishing Journal Backfiles 1879-2005

Topics: Biology

Notes: Low-temperature (77°K) fluorescence and absorption spectra have been determined for whole cells and photosystem I particles of Anacystis nidulans grown in iron-supplied or iron-deficient inorganic media. Iron deficiency induces a decrease of F720 relative to F685 and F695 in the fluorescence spectra of both whole cells and photosystem I particles. This change is correlated to a reduction of preferentially the long wavelength absorbing fraction of chlorophyll a. The relative fluorescence intensity at 755 nm is increased by iron deficiency. No significant effects of culture-age are found in the ratio between the three fluorescence bands (F685: F695: F720) of iron-supplied A. nidulans.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1111/j.1399-3054.1974.tb03677.x

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