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Breakdown of galactolipids in senescent barley leaves

Botanica Acta 102(1): 31-36

Breakdown of galactolipids in senescent barley leaves

The changes of galactolipids (MGDG (monogalactodiacylglycerol) and DGDG (digalactodiacylglycerol), largely 18:3/18:3), free fatty acids (FFA), and phosphatidylcholine (PC) taking place during senescence of primary barley leaves were analysed by HPLC and GLC. Upon induction of senescence MGDG and, with some delay, DGDG began to disappear and were largely broken down at the end of the senescence period. No concomitant appearance of a pool of FFA was observed.

Accession: 001767374

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Wanner L.; Keller F.; Matile P., 1991: Metabolism of radiolabelled galactolipids in senescent barley leaves. The metabolism of galactolipids in senescent primary leaves of barley [Hordeum vulgare] was followed upon the incorporation of [1-14C]oleic acid during greening of etiolated shoots. In presenescent leaves the bulk of the label was present in apola...

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