Background: Coriander (Coriandrum sativum L.) contains abundant of antioxidants and essential oil... more Background: Coriander (Coriandrum sativum L.) contains abundant of antioxidants and essential oils that can provide antibacterial, antifungal, and anti-oxidative activities in the pharmaceutical and health food production industry for providing health benefits. To improve the economic values of coriander, the relationships between optimal light treatments for maximizing both plant growth and the antioxidant and essential oil content of coriander leaves need to be determined.Results: Plants were exposed to five light-emitting diodes spectral color mixtures, high blue light intensity induced the levels of reducing power and chelating effect responses. The light treatments were then adjusted for the analysis of secondary metabolite compounds of coriander leaves. Among 30 identified compounds, the amounts of decamethyl-cyclopentasiloxane and dodecane were significantly reduced in the R80+G50+B50 condition, whereas dodecamethyl-cyclohexasiloxane level was significantly reduced in R50+G50...
Chinese bayberry (Myrica rubra Sieb. et Zucc.) is an economically important medicinal plant with ... more Chinese bayberry (Myrica rubra Sieb. et Zucc.) is an economically important medicinal plant with multiple uses. Two varieties ‘Dongkui Oriental Pearl’ (Dongkui for short) and acuminata ‘Nakai’ (Nakai for short) were used to compare and evaluate the antioxidant activities of hydroethanolic extracts of the fruit using ultrasonic and stirring extraction methods. Dongkui bayberry fruit extract (BFE) prepared using the ultrasonic method exhibited a significantly higher value for the total phenolic content (TPC) and had lower 50% inhibitory concentration (IC50) values of scavenging activities against 1,1-diphenyl-2- picrylhydrazyl (DPPH), 2,2'-azino-bis (3-ethylbenzothiazoline-6-sulphonic acid (ABTS), and hydrogen peroxide (H2O2), as well as reducing power compared to the other treatment. The TPC of the BFE was significantly correlated with its DPPH, ABTS, and H2O2 radical-scavenging and reducing power activities. Dongkui BFE at a concentration of 0.25 mg/mL exhibited significantly gr...
The objective of this study was to investigate the dynamics of chlorophyll (Chl), biosynthetic in... more The objective of this study was to investigate the dynamics of chlorophyll (Chl), biosynthetic intermediates (protoporphyrin IX, magnesium protoporphyrin IX, and protochlorophyllide), degradation intermediates [chlorophyllide (Chlide), pheophytin (Phe), and pheophorbide (Pho)], and carotenoids (Car) in leaves of rice seedlings. Two rice varieties, ‘Taichung Shen’ 10 (‘TCS10’) and ‘IR1552’, were grown under different light quality conditions controlled by light emitting diodes (LED). Lighting treatments for rice seedlings were included by red (R), blue (B), green (G), and red + blue (RB), with fluorescent lighting (FL) as the control and photosynthetic photon flux density being set at 105 μmol m-2 s-1. The results show that lower levels of Chl and Car in leaves were detected under G lighting, and light quality did not mediate porphyrins in biosynthetic pathways. Rice seedling leaves took Chl→Phe→Pho and Chl→Chlide→Pho as the major and minor degradation routes, respectively. Furthermo...
Background Herbaceous plants containing antioxidants can protect against DNA damage. Thepurpose o... more Background Herbaceous plants containing antioxidants can protect against DNA damage. Thepurpose of this study was to evaluate the antioxidant substances,antioxidant activity, and protection of DNA from oxidative damage in humanlymphocytes induced by hydrogen peroxide (H2O2). Ourmethods used acidic methanol and water extractions from six herbaceousplants, including Bidens alba (BA), Lycium chinense (LC),Mentha arvensis (MA), Plantago asiatica (PA),Houttuynia cordata (HC), and Centella asiatica(CA). Methods Antioxidant compounds such as flavonol and polyphenol were analyzed.Antioxidant activity was determined by the inhibition percentage ofconjugated diene formation in a linoleic acid emulsion system and bytrolox-equivalent antioxidant capacity (TEAC) assay. Their antioxidativecapacities for protecting human lymphocyte DNA fromH2O2-induced strand breaks was evaluated by cometassay. Results The studied plants were found to be rich in flavonols, especially myricetinin BA, morin in MA, q...
SummaryEgg production and egg quality are complex sex‐limited traits that may benefit from the im... more SummaryEgg production and egg quality are complex sex‐limited traits that may benefit from the implementation of marker‐assisted selection. The primary objective of the current study was to identify quantitative trait loci (QTL) associated with egg traits, egg production, and body weight in a chicken resource population. Layer (White Leghorn hens) and broiler (Cobb‐Cobb roosters) lines were crossed to generate an F2 population of 508 hens over seven hatches. Phenotypes for 29 traits (weekly body weight from hatch to 6 weeks, egg traits including egg, albumen, yolk, and shell weight, shell thickness, shell puncture score, percentage of shell, and egg shell colour at 35 and 55 weeks of age, as well as egg production between 16 and 55 weeks of age) were measured in hens of the resource population. Genotypes of 120 microsatellite markers on 28 autosomal groups were determined, and interval mapping was conducted to identify putative QTL. Eleven QTL tests representing two regions on chrom...
Oncidium are grown worldwide and play important economic roles. The objective of this study was t... more Oncidium are grown worldwide and play important economic roles. The objective of this study was to investigate the pseudobulb growth and flowering characteristics of the two Oncidesa Gower Ramsey cultivars, ‘Honey Angel (HA)’ and ‘Golden Star (GS)’, cultivated under 3 kinds of fertilizer treatments in response to 40% light intensity (LI-40) and 30% light intensity (LI-30, as control) photosynthetic photon flux density over a 5-month period. The conventional-fertilizer (CF) treatment, as a control, consisted of a liquid manure solution of N:K = 1:1.12, mixed with 7.8% N, 0.8% P2O5, 0.3% K2O, and 57.3% of organic matter that was foliage-applied to plants twice weekly. The stage-fertilizer (SF) treatment consisted of N:P:K = 1:1:5 foliage-applied to plants in an unsheathing pseudobulb stage until reaching inflorescence, followed by N:P:K = 1:1:1 application until the end of the experiment. The fortnight-fertilizer (FF) treatment consisted of N:P:K = 1:1:5 and N:P:K = 1:1:1 with interva...
The objective of this study was to evaluate the antioxidant activities of Mesona procumbens ethan... more The objective of this study was to evaluate the antioxidant activities of Mesona procumbens ethanolic extracts (MPEEs) which displayed variable antioxidant levels with different ethanolic concentrations. Compared to MPEEs with 20, 40 and 80% ethanol, the 60% MPEE exhibited a higher total phenol content (TPC), total flavonoid content (TFC), 1,1-diphenyl-2-picryl hydrazyl (DPPH)- and 2,2-azino-bis-(3-ethyl benzothiazoline-6-sulphonic acid (ABTS)-scavenging activities, reducing power, protection of Raw 264.7 mouse macrophages against HO-induced damage, and inhibition of reactive oxygen species (ROS) induced by 2,2-azobis(2-amidino propane) dihidrochloride (AAPH). ICvalues of DPPH and ABTS radicals by MPEEs were highly and significantly associated with TPCs and TFCs. The most significant protective effect against oxidative DNA damage was also found to be the 60% MPEE at a concentration of 3.6 mg/mL. In addition, the cell viability test showed that none of the MPEEs had any cell toxicity...
Background: Coriander (Coriandrum sativum L.) contains abundant of antioxidants and essential oil... more Background: Coriander (Coriandrum sativum L.) contains abundant of antioxidants and essential oils that can provide antibacterial, antifungal, and anti-oxidative activities in the pharmaceutical and health food production industry for providing health benefits. To improve the economic values of coriander, the relationships between optimal light treatments for maximizing both plant growth and the antioxidant and essential oil content of coriander leaves need to be determined.Results: Plants were exposed to five light-emitting diodes spectral color mixtures, high blue light intensity induced the levels of reducing power and chelating effect responses. The light treatments were then adjusted for the analysis of secondary metabolite compounds of coriander leaves. Among 30 identified compounds, the amounts of decamethyl-cyclopentasiloxane and dodecane were significantly reduced in the R80+G50+B50 condition, whereas dodecamethyl-cyclohexasiloxane level was significantly reduced in R50+G50...
Chinese bayberry (Myrica rubra Sieb. et Zucc.) is an economically important medicinal plant with ... more Chinese bayberry (Myrica rubra Sieb. et Zucc.) is an economically important medicinal plant with multiple uses. Two varieties ‘Dongkui Oriental Pearl’ (Dongkui for short) and acuminata ‘Nakai’ (Nakai for short) were used to compare and evaluate the antioxidant activities of hydroethanolic extracts of the fruit using ultrasonic and stirring extraction methods. Dongkui bayberry fruit extract (BFE) prepared using the ultrasonic method exhibited a significantly higher value for the total phenolic content (TPC) and had lower 50% inhibitory concentration (IC50) values of scavenging activities against 1,1-diphenyl-2- picrylhydrazyl (DPPH), 2,2'-azino-bis (3-ethylbenzothiazoline-6-sulphonic acid (ABTS), and hydrogen peroxide (H2O2), as well as reducing power compared to the other treatment. The TPC of the BFE was significantly correlated with its DPPH, ABTS, and H2O2 radical-scavenging and reducing power activities. Dongkui BFE at a concentration of 0.25 mg/mL exhibited significantly gr...
The objective of this study was to investigate the dynamics of chlorophyll (Chl), biosynthetic in... more The objective of this study was to investigate the dynamics of chlorophyll (Chl), biosynthetic intermediates (protoporphyrin IX, magnesium protoporphyrin IX, and protochlorophyllide), degradation intermediates [chlorophyllide (Chlide), pheophytin (Phe), and pheophorbide (Pho)], and carotenoids (Car) in leaves of rice seedlings. Two rice varieties, ‘Taichung Shen’ 10 (‘TCS10’) and ‘IR1552’, were grown under different light quality conditions controlled by light emitting diodes (LED). Lighting treatments for rice seedlings were included by red (R), blue (B), green (G), and red + blue (RB), with fluorescent lighting (FL) as the control and photosynthetic photon flux density being set at 105 μmol m-2 s-1. The results show that lower levels of Chl and Car in leaves were detected under G lighting, and light quality did not mediate porphyrins in biosynthetic pathways. Rice seedling leaves took Chl→Phe→Pho and Chl→Chlide→Pho as the major and minor degradation routes, respectively. Furthermo...
Background Herbaceous plants containing antioxidants can protect against DNA damage. Thepurpose o... more Background Herbaceous plants containing antioxidants can protect against DNA damage. Thepurpose of this study was to evaluate the antioxidant substances,antioxidant activity, and protection of DNA from oxidative damage in humanlymphocytes induced by hydrogen peroxide (H2O2). Ourmethods used acidic methanol and water extractions from six herbaceousplants, including Bidens alba (BA), Lycium chinense (LC),Mentha arvensis (MA), Plantago asiatica (PA),Houttuynia cordata (HC), and Centella asiatica(CA). Methods Antioxidant compounds such as flavonol and polyphenol were analyzed.Antioxidant activity was determined by the inhibition percentage ofconjugated diene formation in a linoleic acid emulsion system and bytrolox-equivalent antioxidant capacity (TEAC) assay. Their antioxidativecapacities for protecting human lymphocyte DNA fromH2O2-induced strand breaks was evaluated by cometassay. Results The studied plants were found to be rich in flavonols, especially myricetinin BA, morin in MA, q...
SummaryEgg production and egg quality are complex sex‐limited traits that may benefit from the im... more SummaryEgg production and egg quality are complex sex‐limited traits that may benefit from the implementation of marker‐assisted selection. The primary objective of the current study was to identify quantitative trait loci (QTL) associated with egg traits, egg production, and body weight in a chicken resource population. Layer (White Leghorn hens) and broiler (Cobb‐Cobb roosters) lines were crossed to generate an F2 population of 508 hens over seven hatches. Phenotypes for 29 traits (weekly body weight from hatch to 6 weeks, egg traits including egg, albumen, yolk, and shell weight, shell thickness, shell puncture score, percentage of shell, and egg shell colour at 35 and 55 weeks of age, as well as egg production between 16 and 55 weeks of age) were measured in hens of the resource population. Genotypes of 120 microsatellite markers on 28 autosomal groups were determined, and interval mapping was conducted to identify putative QTL. Eleven QTL tests representing two regions on chrom...
Oncidium are grown worldwide and play important economic roles. The objective of this study was t... more Oncidium are grown worldwide and play important economic roles. The objective of this study was to investigate the pseudobulb growth and flowering characteristics of the two Oncidesa Gower Ramsey cultivars, ‘Honey Angel (HA)’ and ‘Golden Star (GS)’, cultivated under 3 kinds of fertilizer treatments in response to 40% light intensity (LI-40) and 30% light intensity (LI-30, as control) photosynthetic photon flux density over a 5-month period. The conventional-fertilizer (CF) treatment, as a control, consisted of a liquid manure solution of N:K = 1:1.12, mixed with 7.8% N, 0.8% P2O5, 0.3% K2O, and 57.3% of organic matter that was foliage-applied to plants twice weekly. The stage-fertilizer (SF) treatment consisted of N:P:K = 1:1:5 foliage-applied to plants in an unsheathing pseudobulb stage until reaching inflorescence, followed by N:P:K = 1:1:1 application until the end of the experiment. The fortnight-fertilizer (FF) treatment consisted of N:P:K = 1:1:5 and N:P:K = 1:1:1 with interva...
The objective of this study was to evaluate the antioxidant activities of Mesona procumbens ethan... more The objective of this study was to evaluate the antioxidant activities of Mesona procumbens ethanolic extracts (MPEEs) which displayed variable antioxidant levels with different ethanolic concentrations. Compared to MPEEs with 20, 40 and 80% ethanol, the 60% MPEE exhibited a higher total phenol content (TPC), total flavonoid content (TFC), 1,1-diphenyl-2-picryl hydrazyl (DPPH)- and 2,2-azino-bis-(3-ethyl benzothiazoline-6-sulphonic acid (ABTS)-scavenging activities, reducing power, protection of Raw 264.7 mouse macrophages against HO-induced damage, and inhibition of reactive oxygen species (ROS) induced by 2,2-azobis(2-amidino propane) dihidrochloride (AAPH). ICvalues of DPPH and ABTS radicals by MPEEs were highly and significantly associated with TPCs and TFCs. The most significant protective effect against oxidative DNA damage was also found to be the 60% MPEE at a concentration of 3.6 mg/mL. In addition, the cell viability test showed that none of the MPEEs had any cell toxicity...
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