Irrigation and Seed Quality Development in Rapid-cycling Brassica: Seed Germination and Longevity

Sinniah, Uma Rani; Ellis, R. H.; John, P. S.

doi:10.1006/anbo.1998.0748

Cited by 43 publications

(34 citation statements)

References 28 publications

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“…Even though this sample was previously characterised [20], seed quality continues to increase after physiological maturity, with possible changes in phenolic composition during storage time [7,27]. The amount of phenolic compounds in seeds was ~9.0 g/kg ( Table 2), which included 489 mg/kg of kaempferol 3,7-diglucoside-4'-(sinapoyl)-glucoside, a compound with a retention time of 28.5 min, not detected in the sprouts (data not shown).…”

Section: Changes In Phenolic Compounds During Sproutingmentioning

confidence: 99%

“…Previous work with B. oleracea sprouts concerned the genetic characterization of seed germination [25,26], monitorization of cell cycle modifications during the first divisions of the seeds [6], sensitivity to hypoxia [18], and the ability of seeds produced under a drought to germinate normally [27]. Other studies have dealt with the ability of seeds to biosynthesize and incorporate erucic acid into triacylglycerols [28] and the activity and distribution of peroxidases isozymes in germinating seeds [29].…”

Section: Introductionmentioning

confidence: 99%

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Screening of Antioxidant Compounds During Sprouting of Brassica oleracea L. var. costata DC

Sousa¹,

Lopes²,

Pereira³

et al. 2007

CCHTS

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Abstract:The changes in antioxidant compounds of Brassica oleracea L. var. costata DC seeds were monitored during the first twelve days of seedling development. Sprouts were screened at time intervals of two days for phenolic compounds and organic acids. The identified phenolic compounds included esters of sinapic acid with glucose, gentiobiose and kaempferol, as well as sinapoylcholine. The organic acids were oxalic, aconitic, citric, pyruvic, malic, shikimic, and fumaric acids. During germination, a depletion of phenolic compounds was observed, although no qualitative changes were seen. Among individual compounds, kaempferol, choline and glucose esters of sinapic acid showed a marked decrease between days two and six, whereas the changes in gentiobiose esters of sinapic acid were smaller. The total organic acids content increased rapidly during the first four days, with less significant variations thereafter. Malic acid, the major organic acid found in sprouts, greatly contributed to this result though oxalic, pyruvic, and fumaric acids also increased in the same manner. In contrast, aconitic, citric and shikimic acids showed decreases between days two and twelve of germination.

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Section: Changes In Phenolic Compounds During Sproutingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Screening of Antioxidant Compounds During Sprouting of Brassica oleracea L. var. costata DC

Sousa¹,

Lopes²,

Pereira³

et al. 2007

CCHTS

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show abstract

“…Seed vigour is determined by both genetic and environmental components (Whittington, 1973 ;Hodgkin & Hegarty, 1978) and although the environmental influences on seed vigour have been extensively studied (Sinniah et al, 1998) the genetic components are less well understood. However, seed vigour remains difficult to assess, because it is a complex trait determined by a number of different factors.…”

Section: mentioning

confidence: 99%

Quantitative genetic analysis of seed vigour and pre‐emergence seedling growth traits in Brassica oleracea

Bettey¹,

Finch‐Savage²,

King³

et al. 2000

New Phytologist

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The ability of seeds to germinate and establish seedlings in a predictable manner under a range of conditions has a direct contribution to the economic success of commercial crops, and should therefore be considered in crop improvement. We measured traits associated with seed vigour and pre-emergence seedling growth in a segregating population of 105 doubled haploid Brassica oleracea lines. The germination traits measured were : mean germination times for unstressed germination ; germination under water stress or germination after a heat treatment ; and conductivity of seed leachate. The seedling growth traits measured were : seed weight ; seedling growth rate ; and seedling size at the end of the exponential growth phase. There were some correlations, notably among germination traits, and between seed weight and pre-emergence seedling growth. Heritability of the various traits was typically in the 10-15% range, with heritability of conductivity and mean germination time under water stress 25 and 24% respectively. Collectively the results indicate that germination and pre-emergence seedling growth are under separate genetic control. Quantitative trait loci analyses were carried out on all measurements and revealed significant loci on linkage groups O1, O3, O6, O7 and O9. We suggest that genes at these loci are important in determining predictable seed germination and seedling establishment in practice.

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“…However, the presence of a QTL for both CDT and natural aging might point toward an essential role for Suc in seed longevity. Suc and stachyose are often associated with desiccation tolerance and seed longevity (Obendorf, 1997;Sinniah et al, 1998;Bailly et al, 2001). In a comparison of the QTLs obtained for seed longevity, by CDT survival, and for seed oligosaccharide (OS) content it was already shown by Bentsink et al (2000) that the variation observed for OS content does not clearly affect seed storability.…”

Section: Regulation Of Germination Sugars and Longevitymentioning

confidence: 99%

Analysis of Natural Allelic Variation of Arabidopsis Seed Germination and Seed Longevity Traits between the Accessions Landsberg erecta and Shakdara, Using a New Recombinant Inbred Line Population

et al. 2004

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Quantitative trait loci (QTL) mapping was used to identify loci controlling various aspects of seed longevity during storage and germination. Similar locations for QTLs controlling different traits might be an indication for a common genetic control of such traits. For this analysis we used a new recombinant inbred line population derived from a cross between the accessions Landsberg erecta (Ler) and Shakdara (Sha). A set of 114 F9 recombinant inbred lines was genotyped with 65 polymerase chain reaction-based markers and the phenotypic marker erecta. The traits analyzed were dormancy, speed of germination, seed sugar content, seed germination after a controlled deterioration test, hydrogen peroxide (H 2 O 2 ) treatment, and on abscisic acid. Furthermore, the effects of heat stress, salt (NaCl) stress, osmotic (mannitol) stress, and natural aging were analyzed. For all traits one or more QTLs were identified, with some QTLs for different traits colocating. The relevance of colocation for mechanisms underlying the various traits is discussed.

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Irrigation and Seed Quality Development in Rapid-cycling Brassica: Seed Germination and Longevity

Cited by 43 publications

References 28 publications

Screening of Antioxidant Compounds During Sprouting of Brassica oleracea L. var. costata DC

Screening of Antioxidant Compounds During Sprouting of Brassica oleracea L. var. costata DC

Quantitative genetic analysis of seed vigour and pre‐emergence seedling growth traits in Brassica oleracea

Analysis of Natural Allelic Variation of Arabidopsis Seed Germination and Seed Longevity Traits between the Accessions Landsberg erecta and Shakdara, Using a New Recombinant Inbred Line Population

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