Diol lipids. Acylated ethyleneglycol glycosides

Vaver, V. A.; Todria, K.G.; Rozynov, B. V.; Bergel'son, L. D.

doi:10.1016/0005-2760(77)90070-4

Cited by 8 publications

(1 citation statement)

References 12 publications

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“…Several authors have described the accumulation in developing maize of oil (2~7), and changes in fatty acids (2,6-1 l), nonpolar lipids (7,12), glycolipids and phospholipids (9,12,13), did1 lipids (14)(15)(16), stemls (17), tocopherols (lt), caroteno2ds (I8) and the stereo-specir% distribution of fatty acids in the triglycetides (10, 19),, ttowever, there has been no comprehensive study of all the acyl lipids in the principal parts of developing maize kernels, and hence there is no direct evidence tc SUplzort our suggestion (1) that there is substantial degrad~ttion of lipid~ in the developing pericarp and nonstarch fraction of the endosperm, In this paper we describe a study of the lipidsin developing LG-11 maize which complements our previous work (1) and shows patterns of lipid syntttesis a~d degradation m various parts of the kernel.…”

Section: Introductionmentioning

confidence: 99%

Lipids in the germ, endosperm and pericarp of the developing maize kernel

Tan

Morrison

1979

J Americ Oil Chem Soc

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Acyl lipids were quantified in the germ, endosperm and pericarp of LG‐11 maize kernels at eight stages of development from 9 to 87 days after pollination (DAP). Changes in the lipids are discussed in relation to morphological events in the developing kernel. Storage lipids (triglyceride, steryl ester) and membrane lipids (diacylphospholipids) accumulated in germ until 52–76 DAP, then decreased slightly without formation of lipid degradation products, lated in endosperm until 36–42 DAP and then decreased. Maximum values for galactosyldiglycerides and diacylphospholipids (nonstarch lipids) were reached at 16–23 DAP, and all decreased to very low values at maturity. Loss of these functional (membrane) lipids during the period of endosperm cell filling is unexpected. Starch contained 82% of the lysophospholipids and 64% of the free fatty acids in endosperm at 76 DAP. Endosperm lysophospholipids increased until 76 DAP and then decreased slightly, while free fatty acids increased continuously mostly inside starch granules at all stages of development, and any possible decrease after 76 DAP was masked by acids formed by hydrolysis of aleurone and endosperm nonstarch lipids from 52 DAP. In DAP, and phospholipids decreased after 42 DAP. Loss of these lipids is associated with senescence of most pericarp tissue. Triglycerides and steryl esters accumulated steadily to maturity, while the main accumulation of unsaponifiables occurred after 52 DAP about the time of suberin formation.

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