Lipid and fatty acid changes linked to postharvest needle abscission in balsam fir, Abies balsamea

Key message The concentration of all fatty acids decreases during abscission in balsam fir, though saturated fatty acids decrease the least. The ratio of saturated:unsaturated fatty acids is strongly correlated with abscission. Postharvest needle abscission is a huge challenge in the balsam fir Chri...

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Bibliographic Details
Published in:Trees (Berlin, West) West), 2020-02, Vol.34 (1), p.297-305
Main Authors: MacDonald, Gaye E., Lada, Rajasekaran R., Caldwell, C. D., Udenigwe, Chibuike, MacDonald, Mason
Format: Article
Language:English
Subjects:
Abies balsamea
Abscission
Agriculture
Biomedical and Life Sciences
Branches
Correlation coefficient
Correlation coefficients
Fatty acids
Fish oils
Forestry
Life Sciences
Lipids
Original Article
Pine needles
Plant Anatomy/Development
Plant Pathology
Plant Physiology
Plant Sciences
Polyunsaturated fatty acids
Tree farms
Water uptake
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Summary:Key message The concentration of all fatty acids decreases during abscission in balsam fir, though saturated fatty acids decrease the least. The ratio of saturated:unsaturated fatty acids is strongly correlated with abscission. Postharvest needle abscission is a huge challenge in the balsam fir Christmas tree and greenery industry. It was hypothesized that lipid and fatty acid changes postharvest are linked to needle abscission. Branches were cut, hydrated in the lab to determine needle loss and water uptake. Other branches were sampled weekly for membrane injury, and lipid and fatty acids (FA). Total polar lipid and fatty acids decreased significantly ( p  
ISSN:0931-1890
1432-2285
DOI:10.1007/s00468-019-01918-2