Abstract
The focus of the present work centers on the diversity of volatile patterns of carrots. In total 15 main volatiles were semiquantified in leaves and roots using isolation by headspace solid phase microextraction followed by gas chromatography with FID and MS detection. Significant differences in the main number of compounds were detected between the cultivars as well as the years. Genotype-environment interactions (G × E) are discussed. The most abundant metabolites, β-myrcene (leaves) and terpinolene (roots), differ in the sum of all interactions (cultivar × harvest year) by a factor of 22 and 62, respectively. A statistical test indicates significant metabolic differences between cultivars for nine volatiles in leaves and 10 in roots. In contrast to others the volatiles α-pinene, γ-terpinene, limonene, and myristicine in leaves as well as β-pinene, humulene, and bornyl acetate in roots are relatively stable over years. A correlation analysis shows no strict clustering regarding root color. While the biosynthesis in leaves and roots is independent between these two organs for nine of the 15 volatiles, a significant correlation of the myristicine content between leaves and roots was determined, which suggests the use of this compound as a bitter marker in carrot breeding.
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Claims 11
Claim · model-written summary
The main number of volatiles differed significantly among cultivars and years.
Verbatim
e0“Significant differences in the main number of compounds were detected between the cultivars as well as the years.”
Claim · model-written summary
Leaf β-myrcene varied 22-fold across cultivar and harvest-year combinations.
Not reportedTaxon
Verbatim
e0“β-myrcene (leaves) and terpinolene (roots), differ in the sum of all interactions (cultivar × harvest year) by a factor of 22 and 62, respectively.”
Claim · model-written summary
Root terpinolene varied 62-fold across cultivar and harvest-year combinations.
Not reportedTaxon
Verbatim
e0“β-myrcene (leaves) and terpinolene (roots), differ in the sum of all interactions (cultivar × harvest year) by a factor of 22 and 62, respectively.”
Claim · model-written summary
Nine leaf volatiles differed significantly among cultivars.
Not reportedTaxon
Verbatim
e0“significant metabolic differences between cultivars for nine volatiles in leaves”
Claim · model-written summary
Ten root volatiles differed significantly among cultivars.
Not reportedTaxonMaterialDirection
Verbatim
e0“10 in roots”
Claim · model-written summary
Several leaf volatiles were relatively stable across years.
- Organ / stage
- leavese0
- Outcome
- α-pinene, γ-terpinene, limonene, and myristicine in leavese0
- Direction
- relatively stablee0
Not reportedTaxon
Verbatim
e0“α-pinene, γ-terpinene, limonene, and myristicine in leaves as well as β-pinene, humulene, and bornyl acetate in roots are relatively stable over years.”
Claim · model-written summary
Several root volatiles were relatively stable across years.
- Organ / stage
- rootse0
- Outcome
- β-pinene, humulene, and bornyl acetate in rootse0
- Direction
- relatively stablee0
Not reportedTaxon
Verbatim
e0“β-pinene, humulene, and bornyl acetate in roots are relatively stable over years.”
Claim · model-written summary
Volatile profiles showed no strict clustering by root color.
Not reportedTaxonDirection
Verbatim
e0“no strict clustering regarding root color”
Claim · model-written summary
Leaf and root biosynthesis was independent for nine of 15 volatiles.
- Organ / stage
- leaves and rootse0
- Outcome
- biosynthesis in leaves and rootse0
- Value
- nine of the 15 volatilese0
Not reportedTaxonDirection
Verbatim
e0“biosynthesis in leaves and roots is independent between these two organs for nine of the 15 volatiles”
Claim · model-written summary
Myristicine contents in leaves and roots were significantly correlated.
Not reportedTaxonDirection
Verbatim
e0“a significant correlation of the myristicine content between leaves and roots was determined”
Claim · model-written summary
The authors suggest myristicine as a bitter marker for carrot breeding.
- Taxon
- carrot
Daucus carotae0 - Compound
- this compounde0
- Outcome
- bitter markere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“suggests the use of this compound as a bitter marker in carrot breeding”