Ameliorated Effect of Shading Treatment in Strong Light Period on Senescence and Photosynthesis in Cucumber ^|^lsquo;Jinchun No. 5^|^rsquo; Seedlings

Li, Jincai; Nishimura, Yoshifumi; Zhao, Xiheng; Fukumoto, Yusuke

doi:10.6090/jarq.47.97

Cited by 2 publications

(10 citation statements)

References 17 publications

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“…1 A) and reduced peroxisome photorespiration due to a reduction in strong light and leaf temperature (Fig. 1 A, B) 1,5,14,21 . MDA is an end product of peroxidation in plant cell membrane lipids due to active oxygen species.…”

Section: Metabolic Property Of Active Oxygen Speciesmentioning

confidence: 99%

“…MDA is an end product of peroxidation in plant cell membrane lipids due to active oxygen species. The increase in MDA reflects the excess metabolism of active oxygen, which is induced by high temperature, strong light and drought stress 12,14,16,18,26,30 . In this study, increase in MDA were seen together with an increase in the amounts of active oxygen species (Fig.…”

Section: Metabolic Property Of Active Oxygen Speciesmentioning

confidence: 99%

“…Accordingly, the cucumber is affected by high temperatures, strong light and drought conditions when cultivated from spring to fall compared with cultivation in winter/spring, resulting in a considerably shortened harvest period and a substantial decline in yield and quality 10,14,30 . The threat of drought stress on plants is increasing with global warming and reduced water resources, meaning it is necessary to closely investigate the physiological damage of drought stress on crops with high water requirements such as the cucumber.…”

Section: Introductionmentioning

confidence: 99%

“…Water is the key requirement for plant cells. Drought stress results in the generation and accumulation of active oxygen species, the peroxidation of membrane lipids, and impairment of nitrogen metabolism, photosynthesis, growth and development, causing a substantial decline in yield and quality 4,7,13,14,[16][17][18]23,26,30 . To what extent does the level of active oxygen species increase in the leaves of cucumber under drought stress; how much is nitrogen metabolism, which plays a prominent role in production, inhibited; and how is photosynthesis, which strongly depends on water metabolism, affected?…”

Section: Introductionmentioning

confidence: 99%

“…The threat of drought stress on plants is increasing with global warming and reduced water resources, meaning it is necessary to closely investigate the physiological damage of drought stress on crops with high water requirements such as the cucumber. Cucumber seedlings are more sensitive to water change compared to adult plants and thus heavily studied in drought stress research 4,7,13,14,[16][17][18]23,26,30 . Water is the key requirement for plant cells.…”

Section: Introductionmentioning

confidence: 99%

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Effects of Drought Stress on the Metabolic Properties of Active Oxygen Species, Nitrogen and Photosynthesis in Cucumber ‘Jinchun No. 5’ Seedlings

Nishimura

Zhao

et al. 2014

JARQ

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To gain a physiological understanding of the effect of drought stress on the cucumber (Cucumis sativus L.), we subjected 'Jinchun No. 5' seedlings to three treatments: control (C), moderate drought stress (MDS) and severe drought stress (SDS) during exposure to high temperature and strong light. We then investigated the metabolic properties of active oxygen species, nitrogen and photosynthesis in leaves from the 3rd to 15th days of treatment. The amounts of active oxygen species superoxide anion (O 2˙‾ ) and hydrogen peroxide (H 2 O 2 ) increased with increasing drought stress in C, MDS and SDS. The malondialdehyde (MDA) content, which reflects the excess metabolism of active oxygen was increased on the 12th and 15th days of treatment with increasing drought stress. The nitrate-reductase (NR) activity of nitrogen metabolism indicators decreased on the 3rd to 15th days of treatment, while soluble protein content increased on the 9th to 15th days of treatment with increasing drought stress. With respect to the photosynthetic properties, stomatal conductance (g s ) decreased from the 6th to 15th days of treatment with increasing drought stress, no significant difference was seen in sub-stomatal CO 2 concentration (C i ) between all three treatment plots, transpiration rate (E) was lower in SDS than C, and the net photosynthesis rate (A) decreased with increasing drought stress. A significant correlation between g s , H 2 O 2 and E with A, and secondly between MDA and NR with A was observed. These findings suggest that drought stress during periods of high temperature and strong light results in the generation and accumulation of abundant active oxygen species, and inhibition of nitrogen and photosynthesis metabolism in cucumber 'Jinchun No. 5' seedlings.

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Section: Metabolic Property Of Active Oxygen Speciesmentioning

confidence: 99%

Section: Metabolic Property Of Active Oxygen Speciesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Effects of Drought Stress on the Metabolic Properties of Active Oxygen Species, Nitrogen and Photosynthesis in Cucumber ‘Jinchun No. 5’ Seedlings

Nishimura

Zhao

et al. 2014

JARQ

Self Cite

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Effect of Nitrogen Application on Active Oxygen Species, Senescence, Photosynthesis, and Growth in Cucumber ‘Jinchun No. 5’ Seedlings

Nishimura

Zhao

et al. 2016

JARQ

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To gain a physiological understanding of applying nitrogen to cucumbers (Cucumis sativus L.), three treatment plots of 'Jinchun No. 5' seedlings were prepared for three levels of nitrogen application using low (L, 0.0 g·kg ) amounts of urea. The specified amount of urea was applied to the dry culture medium of each texting group at three time points: before planting, then at 27 and 43 days after sowing. The following indicators of active oxygen species and senescence were observed in L: soluble protein was low and malondialdehyde (MDA) high in the cotyledons on the 18th day after sowing, and active oxygen species superoxide anion (O 2˙¯) and MDA were high, while soluble protein and chlorophyll were low in the 2nd and 3rd leaves on the 42nd and 52nd days. Therefore, no nitrogen application in L resulted in active oxygen generation and membrane lipid peroxidation, as well as accelerated senescence in the cucumber 'Jinchun No. 5' seedlings. In contrast, in H, soluble protein was high in the cotyledons on the 18th day after sowing, O 2˙¯, hydrogen peroxide (H 2 O 2 ), and MDA were high on the 42nd, 52nd, and 62nd days, respectively, and soluble protein and chlorophyll were high on the 52nd and 62nd days. These results indicate that an excessive application of nitrogen resulted in active oxygen generation and membrane lipid peroxidation, but also delayed senescence at the same time. The photosynthetic properties and growth of the transpiration rate (E), net photosynthesis rate (P n ), plant height, number of leaves, and shoot fresh weight decreased in L, indicating that active oxygen species, senescence, and E were associated with decreased photosynthesis and growth in the cucumber 'Jinchun No. 5' seedlings due to a lack of nitrogen application. Conversely, in H, a decrease in stomatal conductance (g s ), E on the 42nd day, followed by an increase on the 62nd day, suggests that in the leaf mid-growth phase of the seedlings, active oxygen species and E were associated with decreased photosynthesis due to excess nitrogen application. However, delayed senescence was associated with maintaining g s , E, and P n in the late growth phase of the leaves. Moreover, plant height, the number of leaves, and shoot fresh weight showed decreases on the 42nd, 52nd, and 62nd days, respectively, showing the adverse effects of excess nitrogen application on the growth of cucumber 'Jinchun No. 5' seedlings.

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Ameliorated Effect of Shading Treatment in Strong Light Period on Senescence and Photosynthesis in Cucumber ^|^lsquo;Jinchun No. 5^|^rsquo; Seedlings

Cited by 2 publications

References 17 publications

Effects of Drought Stress on the Metabolic Properties of Active Oxygen Species, Nitrogen and Photosynthesis in Cucumber ‘Jinchun No. 5’ Seedlings

Effects of Drought Stress on the Metabolic Properties of Active Oxygen Species, Nitrogen and Photosynthesis in Cucumber ‘Jinchun No. 5’ Seedlings

Effect of Nitrogen Application on Active Oxygen Species, Senescence, Photosynthesis, and Growth in Cucumber ‘Jinchun No. 5’ Seedlings

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