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RISS 인기검색어
- 검색키워드
- 저자 : Juan-Yong Ren (검색결과 4 건)
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Effect of Hydrogen-rich Water on Vase Life and Quality in Cut Lily and Rose Flowers
Peng-Ju Ren,Xin Jin,Wei-Biao Liao,Meng Wang,Li-Juan Niu,Xue-Ping Li,Xiao-Ting Xu,Yong-Chao Zhu 한국원예학회 2017 Horticulture, Environment, and Biotechnology Vol.58 No.6
Hydrogen gas (H2) functions as an important signaling molecule in diverse plant developmental processes. H2 is thought to delay postharvest ripening and senescence in fruit. However, little is known about the influence ofH2 on flower senescence. This study was conducted to determine whether H2 treatment could improve vase life andquality in cut lily (Lilium spp.) and rose (Rosa hybrid L.) flowers. Treatment with 0.5% and 1% hydrogen-rich water(HRW) increased vase life and maximum flower diameter in lily. In addition, 50% HRW treatment significantlyincreased vase life and maximum flower diameter in cut rose flowers. The fresh weight and leaf relative watercontent in cut lilies and roses were enhanced by proper doses of HRW. Compared with the control, HRW treatmentdecreased leaf stomata size in cut lily and rose flowers. HRW treatment significantly reduced leaf malondialdehydecontents and electrolyte leakage in cut lilies. Antioxidant enzyme activities were also improved by HRW treatment incut lily and rose flowers. These results suggest that exogenously applied H2 might improve vase life and postharvestquality in cut flowers by maintaining proper water balance and membrane stability and by reducing stomata size andoxidative damage.
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Effect of pH on the fibroin regulated mineralization of calcium phosphate
Xiao-Dan Sun,Ying-Li Zhou,Juan-Yong Ren,Fu-Zhai Cui,Heng-De Li 한국물리학회 2007 Current Applied Physics Vol.7 No.s1
The eect of pH on the mineralization of calcium phosphate regulated by broin is investigated in this paper. Calcium phosphatesform infrared spectroscopy (FTIR), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The results dem-onstrated the great inuence of pH on the formation of calcium phosphate, both in the presence and in the absence of broin. Purehydroxyapatite (Ca10(PO4)6(OH)2,HA) can be obtained at relatively high pH (pH 8.0), while brushite (CaHPO4 Æ2H2O, DCPD) isto HA and regulate the morphology and structure of the HA crystals obtained.
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Xue-Ping Li,Qing-Qing Xu,Wei-Biao Liao,Zhan-Jun Ma,Xiao-Ting Xu,Meng Wang,Peng-Ju Ren,Li-Juan Niu,Xin Jin,Yong-Chao Zhu 한국식물학회 2016 Journal of Plant Biology Vol.59 No.5
Abscisic acid (ABA) and hydrogen peroxide (H2O2) are important regulatory factors involved in plant development under adversity stress. Here, the involvement of H2O2 in ABA-induced adventitious root formation in cucumber (Cucumis sativus L.) under drought stress was determined. The results indicated that exogenous ABA or H2O2 promoted adventitious rooting under drought stress, with a maximal biological response at 0.5 μM ABA or 800 μM H2O2. The promotive effects of ABA-induced adventitious rooting under drought stress were suppressed by CAT or DPI, suggesting that endogenous H2O2 might be involved in ABA-induced adventitious rooting. ABA increased relative water content (RWC), leaf chlorophyll content, chlorophyll fluorescence parameters (Fv/Fm, ΦPS II and qP), water soluble carbohydrate (WSC) and soluble protein content, and peroxidase (POD), polyphenol oxidase (PPO) and indoleacetate oxidase (IAAO) activities, while decreasing transpiration rate. However, the effects of ABA were inhibited by H2O2 scavenger CAT. Therefore, H2O2 may be involved in ABA-induced adventitious root development under drought stress by stimulating water and chlorophyll content, chlorophyll fluorescence, carbohydrate and nitrogen content, as well as some enzyme activities.
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Chen, Hai-Fei,Li, Zheng-Yang,Tang, Jie-Qing,Shen, Hong-Shi,Cui, Qing-Ya,Ren, Yong-Ya,Qin, Long-Mei,Jin, Ling-Juan,Zhu, Jing-Jing,Wang, Jing,Ding, Jie,Wang, Ke-Yuan,Yu, Zi-Qiang,Wang, Zhao-Yue,Wu, Tian Asian Pacific Journal of Cancer Prevention 2012 Asian Pacific journal of cancer prevention Vol.13 No.9
Objective: To investigate the relationship between the efficacy and safety of different doses of thalidomide (Thal) plus dexamethasone (Dex) as the initial therapy in elderly patients with newly diagnosed multiple myeloma (MM). Methods: Clinical data of 28 elderly patients with newly diagnosed MM who underwent the TD regimen as the initial therapy were analyzed retrospectively. The patients were divided into two groups according to the maximal sustained dose of Thal: lower dose (group A) and higher dose (group B). The overall response rate (ORR), progression free survival (PFS), overall survival (OS), and adverse events (AES) were compared between the two groups. Results: A total of 28 patients were followed up with a median of 18 months. The ORR was 60.1%. The median response time and PFS were 2.0 and 17.0 months, respectively. The mean sustained dose of Thal in group B was significantly higher than group A (292.9 mg v 180.4 mg, P=0.01). There was no significantly difference in ORR (57.1% v 64.3%, P=1.00) and PFS (9.63months v 17.66 months, P=0.73) between groups A and B. During the follow up, only five patients died (<40%) and, therefore, median OS values were not available. It is estimated, however, that the mean survival time in the two groups was 35.6 and 33.4 months (P>0.05), respectively. All of the patients tolerated the treatment well. The incidence of AES in patients with a grading above 3 in group B was significantly higher than in group A (P=0.033). Conclusions: The TD regimen results in a high response rate and manageable AES as the initial therapy in elderly patients with MM. TD should be considered as the front line regimen for the treatment of elderly patients with MM in areas with financial constraints. The clinical response can be achieved at a low dose Thal with minimal toxicity.
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