Effect of high temperature on active oxygen species, senescence and photosynthetic properties in cucumber leaves

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

“…This differs from the minimal involvement of g s and E in the reduction in A in the cucumber 'Jinchun No. 5' seedlings due to high temperature stress 19 .…”

“…It is clear from these results that high temperatures as well as strong light accelerate senescence in the leaves of cucumber 'Jinchun No. 5' seedlings 19 . Oxidative damage to chlorophyll, proteins, and membrane lipids due to numerous active oxygen species is the main cause of leaf senescence accelerated by environmental stress 4,9,14 .…”

“…It has been reported that high temperature stress leads to increased generation and accumulation of active oxygen species, significantly accelerated senescence, mildly affected CO 2 intake and water absorption, and reduced photosynthesis in cucumber leaves 19 . If shading treatment was carried out in periods of strong light, to what extent does the level of active oxygen species vary in cucumber leaves; how much is senescence, which plays a prominent role in productivity, inhibited; and how is photosynthesis, which depends on light energy, affected?…”

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

“…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.…”

“…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.…”