The Effect of Simulated Acid Rain on Chlorophyll Fluorescence Spectra of Spruce Seedlings (Picea abies L. Karst.)
作者： Pavel Šiffel , Zuzana Braunová , Eva Šindelková , Pavel Cudlin
DOI: 10.1016/S0176-1617(96)80253-7
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摘要: Three-year old Norway spruce seedlings (Picea abies L. Karst), were grown in peat soil a greenhouse and sprayed either with simulated acid mist (a mixture of H 2 SO 4 HNO 3 , pH 2.7) or distilled water 5.6 for three months. During spraying, the was covered plastic foil to avoid acidification soil. The photosynthetic pigment apparatus needles analyzed using SDS-polyacrylamide gel electrophoresis, spectrophotometric determination content low temperature chlorophyll fluorescence spectroscopy. chlorophyll(Chl)-protein composition thylakoids not affected by treatment. Chl a/b ratio as well + b) total carotenoids tended decrease acidified but these changes significant. foliage resulted small highly significant increase intensity emission light-harvesting complex (LHC). This indicates structural resulting from direct foliage-mediated action rain.
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