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Rapid Screening for Aluminum Tolerance in Cereals by Use of the Chlorophyll Fluorescence Test
Author(s) -
Moustakas M.,
Ouzounidou G.,
Lannoye R.
Publication year - 1993
Publication title -
plant breeding
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.583
H-Index - 71
eISSN - 1439-0523
pISSN - 0179-9541
DOI - 10.1111/j.1439-0523.1993.tb00653.x
Subject(s) - cultivar , triticale , photosynthesis , chlorophyll fluorescence , biology , chlorophyll , ascorbic acid , thylakoid , fluorescence , horticulture , poaceae , botany , photosynthetic efficiency , agronomy , chloroplast , biochemistry , physics , quantum mechanics , gene
The effects of aluminum on the photosynthetic apparatus were examined in cereals grown in nutrient solutions (pH 4.5) at two Al levels (0 and 148 μM). The chlorophyll fluorescence kinetics results confirmed that the soft wheat ‘BHG’ cultivar has the potential for growth on acid soils while triticale cultivars ‘Niovi’ and ‘Dada’ appeared to be relatively tolerant. The percentage decrease in F v /F m of the less tolerant cultivars after Al‐treatment indicated a decrease in the efficiency of the primary photochemistry of PS II, while the decrease in the ratio F V /F o suggested that exposure of the cultivars ‘Dio’ and ‘Appulo E’ to aluminum caused injury to the thylakoid structure. The percentage fluctuations of the ratio F v /F m were shown to correlate very closely with the assessment of injury as evaluated by the relative top fresh weight. Measurements of chlorophyll fluorescence in vivo could be used to monitor injury caused by “Al‐stress”, and thus they may serve as a rapid screening test for Al tolerance.