Effects of cerium on the antioxidant defence system in the petals and the contents of pigments in the calyces of <i>Rosa chinensis</i> Jacq. cut flower

Wang, Qiaojian; Mu, Jinyan; Shan, Changjuan; Wang, Weiyan; Fu, Songling

doi:10.1080/14620316.2017.1338924

Cited by 11 publications

(7 citation statements)

References 17 publications

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“…Although these treatments outperformed the control in most cases, the findings may show the negative impact of higher concentrations of Ce(NO 3 ) 3 on the longevity of cut lisianthus flowers. The negative effect of high Ce(NO 3 ) 3 rates have also been reported on the longevity of cut Lilium (Houa et al, 2018) and rose flowers (Wang et al, 2017), which is in agreement with our findings.…”

Section: Discussionsupporting

confidence: 93%

“…Cerium is an antibiotic (Huang, 2002) and antioxidant (He and Loh, 2000;Yin et al, 2009) whose positive effect in the form of Ce(NO 3 ) 3 has been reported on the postharvest longevity of cut carnations (Zheng and Guo, 2018) and roses (Wang et al, 2017). Houa et al (2018) reported that the application of Ce(NO 3 ) 3 in the vase solution of Lilium cut flowers prolonged their postharvest longevity by enhancing water uptake and influencing the ASA-GSH cycle.…”

Section: Discussionmentioning

confidence: 99%

“…Ascorbate peroxidase, 1,2-hydroascorbate reductase and glutathione reductase are some of the enzymes in this cycle that play an important role in the clearance of hydrogen peroxide and reactive oxygen species (Zheng and Guo, 2018;Mittler and Zilinskas, 1994). Cerium is effective in increasing the activity of enzymes in this cycle (Zheng and Guo, 2018;Wang et al, 2017).…”

Section: Discussionmentioning

confidence: 99%

“…The positive effect of Ce(NO 3 ) 3 on reducing MDA accumulation has been reported for the cut flowers of Liliums (Houa et al, 2018) and carnations (Zheng and Guo, 2018) too, which is similar to our findings. Wang et al (2017) attributed the effect of Ce(NO 3 ) 3 on prolonging the vase life of cut rose flowers to the preservation of membrane structure through reducing lipid peroxidation and MDA accumulation.…”

Section: Discussionmentioning

confidence: 99%

“…In postharvest physiology, cerium nitrate [Ce(NO 3 ) 3 ] is used to prolong the longevity of cut flowers. The application of Ce(NO 3 ) 3 to the vase solution of rose cut flowers (Wang et al, 2017) and Lilium longiflorum cut flowers (Houa et al, 2018) enhances their longevity by increasing antioxidant activity and strengthening ASA-GSH cycle. According to Zheng and Guo (2018), the treatment of carnation cut flowers with Ce(NO 3 ) 3 reduced the accumulation of MDA and strengthened the metabolism of ascorbate and glutathione in petals.…”

Section: Introductionmentioning

confidence: 99%

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Cerium nitrate and salicylic acid on vase life, lipid peroxidation, and antioxidant enzymes activity in cut lisianthus flowers

2020

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Lisianthus is a major cut flower, but it has a short vase life. To prolong postharvest longevity and improve quantitative and qualitative traits of cut lisianthus flowers, an experiment was conducted on the basis of a Completely Randomized Design with eight treatments on 120 flower sprays in three replications. The experimental treatments included salicylic acid (SA) at the rates of 50, 100 and 200 mg L-1, cerium nitrate [Ce(NO3)3] at the rates of 20, 40, 80, and 200 μM, and control (distilled water). The results revealed that the flowers treated with 40 μM Ce(NO3)3 and those treated with 100 mg L-1 SA had the longest vase life of 15.42 and 15.20 days, respectively. Also, these treatments were most effective in improving water uptake, reducing microbial load at the stem end, and enhancing petals’ protein content. The lowest malondialdehyde (18.65 nmol g-1fresh weight) was related to the treatment of 40 μM Ce(NO3)3 and 100 mg L-1 SA. These treatments showed the lowest polyphenol oxidase (PPO) activity, too. The activity of ascorbate peroxidase (APX) and peroxidase (POD) antioxidant enzymes was significantly higher in the flowers treated with 40 μM Ce(NO3)3 and 100 mg L-1 SA. The treatment of 200 mg L-1 SA had negative effects on all the recorded traits. So, it can be concluded that the treatment of cut lisianthus flowers with 40 μM Ce(NO3)3 and 100 mg L-1 SA can prolong their postharvest longevity by reducing lipid peroxidation and increasing the activity of antioxidant enzymes.

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Section: Discussionsupporting

confidence: 93%