Phytosterols accumulation in the seeds of Linum usitatissimum L.

Herchi, Wahid; Harrabi, Saoussem; Sebei, Khaled; Rochut, Sophie; Boukhchina, Sadok; Pèpe, Claude; Kallel, Habib

doi:10.1016/j.plaphy.2009.07.001

Cited by 49 publications

(36 citation statements)

References 23 publications

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“…[20] Furthermore, the total sterol content of linseed at the ES was found to be higher compared to the HS. [21] The present results were in agreement with the literature. The total sterol contents of Turkish hazelnut cultivars decreased gradually to about one-third of the initial amount at the HS for Sivri cultivar, two-fifths for Palaz cultivar and one-half for Tombul cultivar.…”

Section: Changes In Sterol Composition During Fruit Developmentsupporting

confidence: 93%

Changes in Sterol Composition of Hazelnut During Fruit Development

İlyasoğlu

2014

International Journal of Food Properties

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Hazelnut is a valuable source of fat-soluble bioactive components. Among the fat-soluble bioactive components, phytosterols have gained much interest due to their cholesterol reducing properties. This study presents the evaluation of changes in the sterol composition of Turkish hazelnut cultivars (Tombul, Palaz, and Sivri) during fruit development. Three major sterols (β-sitosterol, campesterol, and Δ5-avenasterol), and five minor sterols (clerosterol, brassicasterol, stigmasterol, Δ7-stigmastenol, and Δ7-avenasterol) were detected in all hazelnut cultivars during all stages. The total sterol contents of Turkish hazelnut cultivars reached the maximum values at the early stage and a significant reduction in the total sterol content occurred at the harvest stage.

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Section: Changes In Sterol Composition During Fruit Developmentsupporting

confidence: 93%

Changes in Sterol Composition of Hazelnut During Fruit Development

İlyasoğlu

2014

International Journal of Food Properties

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“…However, Phillips et al (2005) and Ryan et al (2007) analyzed the content of phytosterol in flaxseeds observing levels of 160 mg g seed À1 and 98.2 mg g seed, respectively. The phytosterol content during the development of flaxseed was maximal at 7 day after flowering reaching values of sitosterol (830 mg g oil À1 ), stigmasterol (265 mg g oil À1 ) and campesterol (564 mg g oil À1 ) (Herchi et al, 2009). Therefore, the levels of phytosterols detected by all these authors were lower than those detected in our experiments in the best conditions, being our procedure a highly successful system.…”

Section: Effect Of Cyclodextrins Glucan and Hexenol On Phytosterol Pmentioning

confidence: 98%

New strategies for the use of Linum usitatissimum cell factories for the production of bioactive compounds

Almagro

García-Pérez

Belchí-Navarro

et al. 2016

Plant Physiology and Biochemistry

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“…Sterols are abundantly synthesized during early stages of seed development, coincident with a period of intense cell division and membrane synthesis (Herchi et al, 2009). Some of the cell expansion and division defects in fk, smt1, hyd1, and cvp1 may be the result of membrane structural defects from deficiency in specific sterols.…”

Section: Sterol Requirements For Cell Expansion and Cell Divisionmentioning

confidence: 99%

The Sterol Methyltransferases SMT1, SMT2, and SMT3 Influence Arabidopsis Development through Nonbrassinosteroid Products

Carland

Fujioka

Nelson³

2010

Plant Physiology

140

156

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Plant sterols are structural components of cell membranes that provide rigidity, permeability, and regional identity to membranes. Sterols are also the precursors to the brassinosteroid signaling molecules. Evidence is accumulating that specific sterols have roles in pattern formation during development. COTYLEDON VASCULAR PATTERNING1 (CVP1) encodes C-24 STEROL METHYLTRANSFERASE2 (SMT2), one of three SMTs in Arabidopsis (Arabidopsis thaliana). SMT2 and SMT3, which also encodes a C-24 SMT, catalyze the reaction that distinguishes the synthesis of structural sterols from signaling brassinosteroid derivatives and are highly regulated. The deficiency of SMT2 in the cvp1 mutant results in moderate developmental defects, including aberrant cotyledon vein patterning, serrated floral organs, and reduced stature, but plants are viable, suggesting that SMT3 activity can substitute for the loss of SMT2. To test the distinct developmental roles of SMT2 and SMT3, we identified a transcript null smt3 mutant. Although smt3 single mutants appear wild type, cvp1 smt3 double mutants show enhanced defects relative to cvp1 mutants, such as discontinuous cotyledon vein pattern, and produce novel phenotypes, including defective root growth, loss of apical dominance, sterility, and homeotic floral transformations. These phenotypes are correlated with major alterations in the profiles of specific sterols but without significant alterations to brassinosteroid profiles. The alterations to sterol profiles in cvp1 mutants affect auxin response, demonstrated by weak auxin insensitivity, enhanced axr1 auxin resistance, ectopically expressed DR5:b-glucuronidase in developing embryos, and defective response to auxin-inhibited PIN2-green fluorescent protein endocytosis. We discuss the developmental roles of sterols implied by these results.

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Phytosterols accumulation in the seeds of Linum usitatissimum L.

Cited by 49 publications

References 23 publications

Changes in Sterol Composition of Hazelnut During Fruit Development

Changes in Sterol Composition of Hazelnut During Fruit Development

New strategies for the use of Linum usitatissimum cell factories for the production of bioactive compounds

The Sterol Methyltransferases SMT1, SMT2, and SMT3 Influence Arabidopsis Development through Nonbrassinosteroid Products

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