Alteration in growth and thylakoid membrane lipid composition of Azolla caroliniana under phosphate deficiency

被引:5
作者
Ismail, G. S. M. [1 ]
Mohamed, H. E. [1 ]
机构
[1] Univ Alexandria, Dept Bot, Fac Sci, Alexandria 21511, Egypt
关键词
anthocyanin; aquatic fern; chlorophyll; chloroplast ultrastructure; fatty acids; galactolipids; phospholipids; FATTY-ACID-COMPOSITION; PHOTOSYNTHETIC ELECTRON-TRANSPORT; PHOSPHORUS STARVATION; PLASMA-MEMBRANE; LEAVES; PHOSPHATIDYLCHOLINE; ULTRASTRUCTURE; PHOSPHOLIPASES; GALACTOLIPIDS; BIOSYNTHESIS;
D O I
10.1007/s10535-010-0119-7
中图分类号
Q94 [植物学];
学科分类号
071001 [植物学];
摘要
The changes in the fresh biomass accumulation, photosynthetic and anthocyanin pigments, photosystem 2 (PS 2) activity, ultrastructure of chloroplast, total lipids and fatty acid composition of thylakoid membrane were followed in the aquatic fern Azolla caroliniana grown on medium either deficient or supplied with various phosphorus concentrations. The content of photosynthetic pigments and the anthocyanin/chlorophyll ratio increased significantly with increasing PO4 (3-) concentration. Phosphate deficiency inhibited growth and PS 2 activity and decreased content of total lipids and phospholipids in isolated thylakoids. This was accompanied with a significant increase in the percentage of galalactolipids.
引用
收藏
页码:671 / 676
页数:6
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