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Ripa PV, Adler JH. Sterol conjugates of two phenotypically different calli of Beta vulgaris. Plant Cell Rep. 1987;6(3):219-22doi: 10.1007/BF00268484.
Ripa, P. V., & Adler, J. H. (1987). Sterol conjugates of two phenotypically different calli of Beta vulgaris. Plant cell reports, 6(3), 219-22. https://doi.org/10.1007/BF00268484
Ripa, P V, and Adler, J H. "Sterol conjugates of two phenotypically different calli of Beta vulgaris." Plant cell reports vol. 6,3 (1987): 219-22. doi: https://doi.org/10.1007/BF00268484
Ripa PV, Adler JH. Sterol conjugates of two phenotypically different calli of Beta vulgaris. Plant Cell Rep. 1987 Jun;6(3):219-22. doi: 10.1007/BF00268484. PMID: 24248657.
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Plant Cell Rep. 1987 Jun;6(3):219-22. doi: 10.1007/BF00268484.

Sterol conjugates of two phenotypically different calli of Beta vulgaris.

Plant cell reports

P V Ripa, J H Adler

Affiliations

  1. Department of Biological Sciences, Michigan Technological University, 49931, Houghton, MI, USA.

PMID: 24248657 DOI: 10.1007/BF00268484

Abstract

Steryl glycosides are the predominant form of sterol at 88% of the total sterol in non-betalain producing calli of Beta vulgaris. The total sterol decreases and sterol form shifts from steryl glycosides to 97% free sterol upon the transition of non-betalain to betalain producing calli. A substantial decrease in stigmasterol (24α--ethylcholesta-5,22E-dien-3β-ol) and sitosterol (24α-ethylcholest-5-en-3β-ol) levels is observed during this transition, and alters the ratio of Δ(7):Δ(5) sterols. Spinasterol (24α- ethyl-5α-cholesta-7,22E-dien-3β-ol) is the dominant sterol at 43% and 95% of the total sterol in non-betalain producing and betalain producing calli. The level of 22-dihydrospinasterol (24α-ethyl-5α-cholest-7-en-3β-ol) is reduced in both calli to ≤ 3% from 25% in leaves. Lanosterol (4,4,14α-trimethyl-cholesta-8(9),24-dien-3β-ol) and cycloartenol (9β,19-cyclopropyl-4,4,14α-trimethyl-cholest-24-en-3β-ol) were identified in betalain and nonbetalain producing callus respectively.

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