Endogenous cytokinins from developing 'Shamouti' orange fruits derived from leafy and leafless inflorescences

Tekchand Saidha; E. E. Goldschmidt; S. P. Monselise

doi:10.1016/0304-4238(85)90099-8

Endogenous cytokinins from developing 'Shamouti' orange fruits derived from leafy and leafless inflorescences

Tekchand Saidha^*, E. E. Goldschmidt, S. P. Monselise

^*Corresponding author for this work

Institute of Plant Sciences and Genetics in Agriculture

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10 Scopus citations

Abstract

Purified extracts of developing fruits of "Shamouti' orange, derived from leafy and leafless inflorescences, showed two paper chromatographic zones of cytokinin activity by the Amaranthus bioassay. The first zone corresponded to R_f 0.0-0.3 and the second to R_f 0.6-0.9. Sephadex LH-20 fractionation of the cytokinin extracts tentatively showed the occurrence of zeatin and zeatin-riboside. Irrespective of the origin of fruit, highest cytokinin levels were obtained at petal fall (Stage I) and markedly declined thereafter. Levels appeared to be relatively higher in fruit from the leafy than in fruit from the leafless inflorescence type. The involvement of cytokinins in fruit set and growth is discussed.

Original language	English
Pages (from-to)	35-41
Number of pages	7
Journal	Scientia Horticulturae
Volume	26
Issue number	1
DOIs	https://doi.org/10.1016/0304-4238(85)90099-8
State	Published - May 1985

Keywords

Citrus sinensis (L.) Osbeck
cytokinin
fruit set
zeatin
zeatin riboside

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10.1016/0304-4238(85)90099-8

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title = "Endogenous cytokinins from developing 'Shamouti' orange fruits derived from leafy and leafless inflorescences",

abstract = "Purified extracts of developing fruits of {"}Shamouti' orange, derived from leafy and leafless inflorescences, showed two paper chromatographic zones of cytokinin activity by the Amaranthus bioassay. The first zone corresponded to Rf 0.0-0.3 and the second to Rf 0.6-0.9. Sephadex LH-20 fractionation of the cytokinin extracts tentatively showed the occurrence of zeatin and zeatin-riboside. Irrespective of the origin of fruit, highest cytokinin levels were obtained at petal fall (Stage I) and markedly declined thereafter. Levels appeared to be relatively higher in fruit from the leafy than in fruit from the leafless inflorescence type. The involvement of cytokinins in fruit set and growth is discussed.",

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AU - Monselise, S. P.

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N2 - Purified extracts of developing fruits of "Shamouti' orange, derived from leafy and leafless inflorescences, showed two paper chromatographic zones of cytokinin activity by the Amaranthus bioassay. The first zone corresponded to Rf 0.0-0.3 and the second to Rf 0.6-0.9. Sephadex LH-20 fractionation of the cytokinin extracts tentatively showed the occurrence of zeatin and zeatin-riboside. Irrespective of the origin of fruit, highest cytokinin levels were obtained at petal fall (Stage I) and markedly declined thereafter. Levels appeared to be relatively higher in fruit from the leafy than in fruit from the leafless inflorescence type. The involvement of cytokinins in fruit set and growth is discussed.

AB - Purified extracts of developing fruits of "Shamouti' orange, derived from leafy and leafless inflorescences, showed two paper chromatographic zones of cytokinin activity by the Amaranthus bioassay. The first zone corresponded to Rf 0.0-0.3 and the second to Rf 0.6-0.9. Sephadex LH-20 fractionation of the cytokinin extracts tentatively showed the occurrence of zeatin and zeatin-riboside. Irrespective of the origin of fruit, highest cytokinin levels were obtained at petal fall (Stage I) and markedly declined thereafter. Levels appeared to be relatively higher in fruit from the leafy than in fruit from the leafless inflorescence type. The involvement of cytokinins in fruit set and growth is discussed.

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Endogenous cytokinins from developing 'Shamouti' orange fruits derived from leafy and leafless inflorescences

Abstract

Keywords

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