The long-term effect of cold on the metabolism of winter wheat seedlings. II. composition of fatty acids of phospholipids

Skoczowski, Andrzej; Filek, Maria; Dubert, F.

doi:10.1016/0306-4565(94)90028-0

Cited by 14 publications

(11 citation statements)

References 15 publications

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“…Potassium was the most abundant element present in all parts of beach pea seeds ranging from 37.98 to 47.20%. This is in agreement with the report of Sutcliffe and Baker (1976) that K is the main constituent of plant cells, comprising nearly 50% of the total weight. In the present investigation, a significantly higher fraction of the K was found in the embryo than in the seed coat.…”

Section: Elementssupporting

confidence: 82%

“…The measurement of each fatty acid was calculated as a relative weight percentage to 10 selected fatty acids [C14:0 (myristic acid), C14:1 (myristoleic acid), C16:0 (palmitic acid), C16:1 (palmitoleic acid), C18:0 (stearic acid), C18:1 (oleic acid), C18:2 (linoleic acid), C18:3 (linolenic acid), C18:4 and C20:4 (arachidonic acid)]. The double bond index (DBI) was calculated (Skoczowski et al 1994) using the formula:…”

Section: Separation Of Lipids and Analysis Of Fatty Acid Compositionmentioning

confidence: 99%

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Fatty acid and elemental composition of mature seeds of beach pea [Lathyrus maritimus (L.) Bigel.]

Chinnasamy¹,

McKenzie²

2004

Can. J. Plant Sci.

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[65][66][67][68][69]. This study was conducted to determine the fatty acid composition of phospholipids (PL), monoglycerides (MG), diglycerides (DG), free fatty acids (FFA) and triglycerides (TG) of mature beach pea seeds and the elemental composition of mature beach pea seed coats and embryos. In beach pea seeds, PL were dominated by C18:2 and C16:0 and MG contained high quantities of C18:2, C16:0 and C18:1. Diglycerides showed high C18:0, C16:0 and C18:2. Free fatty acids were dominated by C18:2, C16:0, C18:1 and C18:0, and TG were dominated by C18:1, C18:0 and C16:0. Energy dispersive X-ray microanalysis revealed K as the most abundant element in whole seed, seed coat and embryo. However, embryos showed significantly higher relative weight percentage of K than whole seeds and seed coats. Whole seeds and embryos contained higher P, S and Cl relative weight percentages than seed coats. Seed coats contained higher Ca, Na and Mg relative weight percentages than embryos. Aluminium, Si, Mn, Fe, Cu and Zn distribution between seed coat and embryo was uniform.

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Section: Elementssupporting

confidence: 82%

Section: Separation Of Lipids and Analysis Of Fatty Acid Compositionmentioning

confidence: 99%

Fatty acid and elemental composition of mature seeds of beach pea [Lathyrus maritimus (L.) Bigel.]

Chinnasamy¹,

McKenzie²

2004

Can. J. Plant Sci.

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“…The double bond index (DBI), a measure of the membrane lipid unsaturation, was calculated according to Skoczowski et al () as follows:

normalDBI = \frac{[\sum (percentage of fatty acid content \times number of double bond)]}{100}

…”

Section: Methodsmentioning

confidence: 99%

Differential lipidome remodeling during postharvest of peach varieties with different susceptibility to chilling injury

Bustamante

Brotman

Monti

et al. 2017

Physiologia Plantarum

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Peaches ripen and deteriorate rapidly at room temperature. Therefore, refrigeration is used to slow these processes and to extend fruit market life; however, many fruits develop chilling injury (CI) during storage at low temperature. Given that cell membranes are likely sites of the primary effects of chilling, the lipidome of six peach varieties with different susceptibility to CI was analyzed under different postharvest conditions. By using liquid chromatography coupled to mass spectrometry (LC-MS), 59 lipid species were detected, including diacyl- and triacylglycerides. The decreases in fruit firmness during postharvest ripening were accompanied by changes in the relative amount of several plastidic glycerolipid and triacylglyceride species, which may indicate their use as fuels prior to fruit senescence. In addition, levels of galactolipids were also modified in fruits stored at 0°C for short and long periods, reflecting the stabilization of plastidic membranes at low temperature. When comparing susceptible and resistant varieties, the relative abundance of certain species of the lipid classes phosphatidylethanolamine, phosphatidylcholine and digalactosyldiacylglycerol correlated with the tolerance to CI, reflecting the importance of the plasma membrane in the development of CI symptoms and allowing the identification of possible lipid markers for chilling resistance. Finally, transcriptional analysis of genes involved in galactolipid metabolism revealed candidate genes responsible for the observed changes after cold exposure. When taken together, our results highlight the importance of plastids in the postharvest physiology of fruits and provide evidence that lipid composition and metabolism have a profound influence on the cold response.

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“…An estimation of the membrane total unsaturation level (double-bond index) was calculated from the mol% values derived from the gas chromatographic data, according to the equation: [Σ(mol% fatty acid content × no. of double bonds)]/100 as described by Skoczowski, et al [62]. …”

Section: Methodsmentioning

confidence: 99%

Regulation of membrane fatty acid composition by temperature in mutants of Arabidopsis with alterations in membrane lipid composition

2004

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Background: A wide range of cellular responses occur when plants are exposed to elevated temperature, including adjustments in the unsaturation level of membrane fatty acids. Although membrane bound desaturase enzymes mediate these adjustments, it is unknown how they are regulated to achieve these specific membrane compositions. Furthermore, the precise roles that different membrane fatty acid compositions play in photosynthesis are only beginning to be understood. To explore the regulation of the membrane composition and photosynthetic function in response to temperature, we examined the effect of temperature in a collection of mutants with altered membrane lipid fatty acid composition.

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The long-term effect of cold on the metabolism of winter wheat seedlings. II. composition of fatty acids of phospholipids

Cited by 14 publications

References 15 publications

Fatty acid and elemental composition of mature seeds of beach pea [Lathyrus maritimus (L.) Bigel.]

Fatty acid and elemental composition of mature seeds of beach pea [Lathyrus maritimus (L.) Bigel.]

Differential lipidome remodeling during postharvest of peach varieties with different susceptibility to chilling injury

Regulation of membrane fatty acid composition by temperature in mutants of Arabidopsis with alterations in membrane lipid composition

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