Lipid Composition of Pea and Bean Leaves during Chloroplast Development
- 1 July 1972
- journal article
- Published by Oxford University Press (OUP) in Plant Physiology
- Vol. 50 (1), 31-34
- https://doi.org/10.1104/pp.50.1.31
Abstract
Thechanges incomposition ofthecomplex lipids werefol- lowedduring thegreening ofdark-grown pea(Pisum sativum) andbean(Phaseolus vulgaris) seedlings. Nosignificant changes inglycerolipid concentrations intheleaves were observed duringtheearly stages ofgreening (0-8hourforpeasand 0-12hourforbeans). On further greening, there was an in- crease intheproportion ofgalactolipids andadecrease inthe phospholipids. Thefatty acidcomposition ofthegalactolipids remained constant during 24hoursofgreening, butthere was a slight increase ina-linolenic acidat72hoursinthebean. Thepercentage ofa-linolenic acidinthephospholipids andin sulfolipid showedamarkedincrease between 24and72hours inthebean.Trans-A3-hexadecenoic acidwas themajorfatty acidofphosphatidyl glycerol inbeanleaves at72hours, butit wasbarely detectable at24hours. Thelipid composition of greening leaves isdiscussed inrelation tothefine structureand photochemical activity ofthedeveloping plastids.Keywords
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