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Title

Changes in photosynthetic pigment composition in higher plants as affected by iron nutrition status

AuthorsVal Falcón, Jesús ; Monge Pacheco, Emilio ; Heras Cobo, Luis ; Abadía Bayona, Javier
KeywordsPigments
Iron chlorosis
Photosynthesis
Issue Date1987
PublisherMarcel Dekker
CitationJournal of Plant Nutrition 10 (9-16): 995-1001 (1987)
AbstractThe effect of iron deficiency on the amount of photosynthetic pigments per unit leaf area was investigated into two fruit tree species, apricot and pear, grown in the field. Iron deficiency reduced the amount per area of all pigments, but the extent of the reduction depended on the particular pigment affected. The concentration of lutein per unit area was the least affected by iron deficiency. When compared to green leaves, iron deficient leaves which had lost about 85 percent of their chlorophyll a and other pigments, conserved about 30 percent of their lutein per area). The relationships between neoxanthin and chlorophyll a, and between ß-carotene and chlorophyll a were practically linear. The ratio between chlorophyll a and chlorophyll b increased only when the chlorophyll a content fell below 6-8 μg cm‐2, i.e. in fully chlorotic leaves.
Publisher version (URL)http://dx.doi.org/10.1080/01904168709363627
URIhttp://hdl.handle.net/10261/96174
DOI10.1080/01904168709363627
Identifiersdoi: 10.1080/01904168709363627
issn: 0190-4167
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