Positive effects of temperature and growth conditions on enzymatic and antioxidant status in lettuce plants

Boo, Hee-Ock; Heo, Buk-Gu; Gorinstein, Shela; Chon, Sang‐Uk

doi:10.1016/j.plantsci.2011.07.013

Cited by 116 publications

(76 citation statements)

References 44 publications

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“…A similar relationship between DPPH antioxidant activity and temperature was reported by Boo et al (2011) and Li et al (2010) for Lactuca sativa L. Ghasemza- …”

Section: Xu Et Al (2010) Reported That Premna Microphyllasupporting

confidence: 81%

Influence of light intensity and temperature on antioxidant activity in Premna serratifolia L.

Chua

King

Ong

et al. 2015

J. Soil Sci. Plant Nutr.

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Premna serratifolia has been used to treat inflammatory disorders because it was believed to have antioxidant properties. However, scientific research on this species is currently lacking. This work assesses the antioxidant activity of P. serratifolia in relation to light intensity and temperature. Harvesting time significantly influenced the antioxidant activities in P. serratifolia leaves; the highest 1,1-diphenyl-2-picryl-hydrazil (DPPH) free radical scavenging activity and lowest flavonoid and phenolic contents were observed at 9 am. The opposite trend was observed at 12 noon. Temperature had a significant influence on the DPPH free radical scavenging activity and phenolic content. The DPPH antioxidant activity was negatively correlated with light intensity. The results of this study indicated that harvesting time of P. serratifolia leaves should be tailored according to the preferred antioxidant activity.

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“…A similar relationship between DPPH antioxidant activity and temperature was reported by Boo et al (2011) and Li et al (2010) for Lactuca sativa L. Ghasemza- …”

Section: Xu Et Al (2010) Reported That Premna Microphyllasupporting

confidence: 81%

Influence of light intensity and temperature on antioxidant activity in Premna serratifolia L.

Chua

King

Ong

et al. 2015

J. Soil Sci. Plant Nutr.

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“…PCA plot of the scores (a) and loadings (b) of the white shaft and green leaves of 30 leek cultivars with summer, autumn and winter types, higher antioxidant values in the winter types. Boo, Heo, Gorinstein, and Chon (2011) reported an increase of the antioxidant capacity when lettuce was grown at low day/night temperatures in comparison with growth at higher temperatures. Exposure to increased UV-B light could be the reason for the high health-related compounds in the leaves of the summer types.…”

Section: Principal Component Analysis (Pca)mentioning

confidence: 99%

Antioxidant capacity, total phenolic and ascorbate content as a function of the genetic diversity of leek (Allium ampeloprasum var. porrum)

Bernaert

Paepe

et al. 2012

Food Chemistry

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a b s t r a c tExtracts of the white shaft and green leaves of 30 leek cultivars were investigated for their antioxidant properties, total phenolic (TP) and L-ascorbic acid (AA) content. The measured antioxidant properties included free radical scavenging activities against peroxyl (ORAC) and 2,2-diphenyl-1-picrylhydrazyl radicals (DPPH) and their Fe 3+ reducing capacity (FRAP). The results from this study suggest that the green leek leaves generally have significantly stronger antioxidant properties than the white shaft. Correlation analysis between the TP and the AA content and the antioxidant activity showed that phenolics and ascorbic acid contribute significantly to the antioxidant activity of leek. The three antioxidant activity assays were all correlated for the extracts of the white shaft of the 30 leek cultivars. Principal component analysis (PCA) elucidated the influence of part and type of cultivar on the antioxidant capacity, TP, and Lascorbic acid content, whilst the breeding strategy and seed company had no influence.

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“…A alface (Lactuca sativa L.) é uma planta herbácea anual pertencente a família Compositae, que é uma das maiores famílias e apresenta diversas plantas com flores (BOO et al, 2011). A alface é considerada a hortaliça folhosa mais importante na alimentação dos brasileiros e sua propagação é feita por meio de sementes, as quais apresentam particular sensibilidade às variações na umidade e temperatura do meio onde germinam (BERTAGNOLLI et al, 2003).…”

Section: Introductionunclassified

Períodos de estratificação na germinação de sementes de alface (Lactuca sativa L.) sob diferentes condições de luz e temperatura

et al. 2012

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Lettuce seeds have a high sensitivity to variations in humidity and temperature of the environment where they germinate, therefore, studies with the aim of improve the germination and physiological performance of these have been conducted. Thus, the study aimed to evaluate the efficiency of pregermination treatment stratification (5°C) for different periods, and increase the uniformity of germination of lettuce seeds submitted to different conditions of light and germination temperatures. In the pre-germinative treatment, the seeds of lettuce (Lactuca sativa L.) var. American Great Lakes were placed in plastic boxes dark of the type "gerbox" and subjected to temperature stratification of 5 °C and the dark for 0, 4, 8, 12 and 16 hours. After periods of stratification the seeds were submitted to

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Positive effects of temperature and growth conditions on enzymatic and antioxidant status in lettuce plants

Cited by 116 publications

References 44 publications

Influence of light intensity and temperature on antioxidant activity in Premna serratifolia L.

Influence of light intensity and temperature on antioxidant activity in Premna serratifolia L.

Antioxidant capacity, total phenolic and ascorbate content as a function of the genetic diversity of leek (Allium ampeloprasum var. porrum)

Períodos de estratificação na germinação de sementes de alface (Lactuca sativa L.) sob diferentes condições de luz e temperatura

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