Effect of light intensity on the formation of carotenoids in normal and mutant maize leaves

Horváth, Gábor; Kissimon, J.; Faludi-Dániel, Ágnes

doi:10.1016/s0031-9422(00)89987-2

Cited by 46 publications

(18 citation statements)

References 16 publications

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“…), probably by a photo-oxidation process, as observed in carotenoid-deficient mutants of maize (Horváth et al 1972). Light is required to drive the carotene desaturation pathway towards completion (Beyer et al 1989, Bartley et al 1999.…”

Section: Discussionmentioning

confidence: 99%

A Deficiency at the Gene Coding for ζ-Carotene Desaturase Characterizes the Sunflower non dormant-1 Mutant

Conti

Pancaldi

Fambrini

et al. 2004

Plant and Cell Physiology

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The non dormant-1 (nd-1) mutant of sunflower (Helianthus annuus L.) is characterized by an albino and viviparous phenotype. Pigment analysis by spectrophotometer and HPLC demonstrated in nd-1 cotyledons the absence of β-carotene, lutein and violaxanthin. Additionally, we found a strong accumulation of ζ-carotene and, to a lesser extent, of phytofluene and cis-phytoene in nd-1 seedlings grown in very dim light (1 µmol m -2 s -1 ). These results suggested that ζ-carotene desaturation was impaired in the mutant plants.To understand the molecular basis of the nd-1 mutation, we cloned and characterized the ζ-carotene desaturase (

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Section: Discussionmentioning

confidence: 99%

A Deficiency at the Gene Coding for ζ-Carotene Desaturase Characterizes the Sunflower non dormant-1 Mutant

Conti

Pancaldi

Fambrini

et al. 2004

Plant and Cell Physiology

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“…Although there were some disparities in the responses reported, studies on leaves, seedlings, and cotyledons showed some indications of sunlight-stimulated synthesis of cyclic carotenoids (5,6,8,16,19). Conversely, red blush grapefruits placed under reduced light ("shade") consistently had slightly higher lycopene concentrations than those exposed to sunlight (12,13).…”

Section: Methodsmentioning

confidence: 99%

Comparative Study of the Carotenoid Composition of the Seeds of Ripening Momordica charantia and Tomatoes

Rodriguez¹,

Lee²,

Chichester³

1975

Plant Physiol.

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The total carotenoid concentration of the seeds of Momordica charantia rose about 100-fold from the immature to the ripe stage. The massive increase was almost exclusively attributable to lycopene, which accounted for 96% of the carotenoids of the ripe seeds. The carotenoid pattern of the seed was found to be drastically different from that of the pericarp. The seed, which contained fewer carotenoids, had a total concentration 12 times greater than that Ripe cherry tomatoes, Lycopersicon esculentum var. Cerasiforme (Dun.) A. Gray, were purchased from a local fruit market. The cherry variety was used because the seeds were easier to separate. The seeds from 900 g of fruits were separated from the pericarp and washed with water on a sieve to remove juice and residual pulp. The water was drained and the seeds were air dried on the sieve for a couple of hours. Four 30-g samples were taken and analyzed separately.In addition to the authentic carotenoids used for comparison in the preceding study, lycoxanthin and rubixanthin were extracted and purified from Solanum dulcamara and rose hips, respectively.Extraction and Separation of Carotenoids. The carotenoids of the seeds of both fruits were extracted and saponified in the same manner described for the pericarp (17). The saponified pigments from the ripe and partly ripe Momordica samples were separated initially on a column of alumina (activity grade III), using 1 to 5% (v/v) ethyl ether in petroleum ether as solvent. Fraction 4 was rechromatographed on a MgO-HyfloSupercel (1:2) column developed with 25% (v/v) acetone in petroleum ether, resulting in the formation of five bands (fractions 4-a to 4-e). If necessary, these bands could be purified on a silica gel plate (Quanta Gram TLC plates QIF, Quantum Industries, New Jersey) with 3%C (v/v) methanol in benzene as the developing solvent. The pigments extracted from the immature seeds separated into four bands on the alumina column. These fractions consisted of single carotenoids and thus needed no further separation. The topmost fraction of pigments from mature samples consisted of three components when rechromatographed on a silica gel plate developed with 3% (v/v) methanol in benzene. As in the previous study, the colorless eluate preceding the fluorescent phytofluene band was collected and examined for the presence of phytoene.The tomato seed carotenoids were fractionated as described for the whole fruit (15) except that lycopene was subsequently separated from the xanthophylls on an alumina column (activity grade III) developed with 1 to 5% (v/v)

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“…After attaining a particular level, the chlorophyll content didn't increase because it was protected from photooxidation by the caroteneids of leaf [16]. This decrease in the carotene content in palmarosa and lemongrass might be due to environmental factors [17].…”

Section: Chlorophyll and Carotenementioning

confidence: 99%

Post-Infectional Biochemical Changes in <i>Cymbopogon martinii</i> (Roxb.) Wats and <i>Cymbopogon citratus</i> (DC) Stapf. Due to Leaf Rust Disease

Tamuli¹,

Saikia²,

Boruah³

2013

AJPS

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Effect of light intensity on the formation of carotenoids in normal and mutant maize leaves

Cited by 46 publications

References 16 publications

A Deficiency at the Gene Coding for ζ-Carotene Desaturase Characterizes the Sunflower non dormant-1 Mutant

A Deficiency at the Gene Coding for ζ-Carotene Desaturase Characterizes the Sunflower non dormant-1 Mutant

Comparative Study of the Carotenoid Composition of the Seeds of Ripening Momordica charantia and Tomatoes

Post-Infectional Biochemical Changes in <i>Cymbopogon martinii</i> (Roxb.) Wats and <i>Cymbopogon citratus</i> (DC) Stapf. Due to Leaf Rust Disease

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Effect of light intensity on the formation of carotenoids in normal and mutant maize leaves

Cited by 46 publications

References 16 publications

A Deficiency at the Gene Coding for ζ-Carotene Desaturase Characterizes the Sunflower non dormant-1 Mutant

A Deficiency at the Gene Coding for ζ-Carotene Desaturase Characterizes the Sunflower non dormant-1 Mutant

Comparative Study of the Carotenoid Composition of the Seeds of Ripening Momordica charantia and Tomatoes

Post-Infectional Biochemical Changes in &lt;i&gt;Cymbopogon martinii&lt;/i&gt; (Roxb.) Wats and &lt;i&gt;Cymbopogon citratus&lt;/i&gt; (DC) Stapf. Due to Leaf Rust Disease

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Post-Infectional Biochemical Changes in <i>Cymbopogon martinii</i> (Roxb.) Wats and <i>Cymbopogon citratus</i> (DC) Stapf. Due to Leaf Rust Disease