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Changes in carotenoids and fatty acids in photosystem II of Cudeficient pea plants
Author(s) -
Ayala Matilde Barón,
Gorgé Julio López,
Lachica Manuel,
Sandmann Gerhard
Publication year - 1992
Publication title -
physiologia plantarum
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.351
H-Index - 146
eISSN - 1399-3054
pISSN - 0031-9317
DOI - 10.1111/j.1399-3054.1992.tb08756.x
Subject(s) - pisum , carotenoid , photosystem ii , sativum , photosynthesis , chlorophyll , photosystem i , oleic acid , linolenic acid , biology , photosystem , fatty acid , botany , linoleic acid , pigment , biochemistry , chemistry , organic chemistry
Photosystem II (PSII) from Cu‐deficient pea plants ( Pisum sativum L., cv. Lincoln) has been investigated for electron transport activity, Cu content, and changes in some lipid components. Total fatty acid content was lower that in control plants, with an additional shift in the C 18 fatty acid patterns. Less α‐linolenic and more linoleic and oleic acids were found. PSII preparations from Cu‐depleted plants showed a decreased carotenoid content in light harvesting chlorophyll a/b complex of photosystem II (LHCII) and additional variations in pigment composition of pigment‐protein complexes. In the green alga Dunaliella the effect of Cu deficiency on fatty acid composition was similar to that in pea plants, but the influence on the carotenoid pattern was much less pronounced.