Plant responses to ozone: Effects of different ozone exposure durations on plant growth and biochemical quality of Brassica campestris L. ssp. chinensis

Han, Young Jong; Gharibeshghi, Amir; Mewis, Inga; Förster, Nadja; Beck, Winston; Ulrichs, Christian

doi:10.1016/j.scienta.2019.108921

Cited by 26 publications

(16 citation statements)

References 66 publications

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“…In a previous study, ozone exposure of 150 ppb for 1 h had no effect on dry matter growth of Pak-Choi plants, whereas 4 h of exposure resulted in growth reduction ( Han et al., 2020 ). Seventy ppb ozone for 2 days had no effect on growth parameters such as leaf area and reproductive development, whereas 10 d ozone exposure reduced the whole growth of Brassica campestris plants ( Black et al., 2007 ).…”

Section: Discussionmentioning

confidence: 80%

Ozone control as a novel method to improve health-promoting bioactive compounds in red leaf lettuce (Lactuca sativa L.)

Lee

Gotō

2022

Front. Plant Sci.

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In this study, we determined the short-term effects of ozone exposure on the growth and accumulation of bioactive compounds in red lettuce leaves grown in a controlled environment plant factory with artificial light, also known as a vertical farm. During cultivation, twenty-day-old lettuce (Lactuca sativa L. var. Redfire) seedlings were exposed to 100 and 200 ppb of ozone concentrations for 72 h. To find out how plants react to ozone and light, complex treatments were done with light and ozone concentrations (100 ppb; 16 h and 200 ppb; 24 h). Ozone treatment with 100 ppb did not show any significant difference in shoot fresh weight compared to that of the control, but the plants exposed to the 200 ppb treatment showed a significant reduction in fresh weight by 1.3 fold compared to the control. The expression of most genes in lettuce plants exposed to 100 and 200 ppb of ozone increased rapidly after 0.5 h and showed a decreasing trend after reaching a peak. Even when exposed to a uniform ozone concentration, the pattern of accumulating bioactive compounds such as total phenolics, antioxidant capacity and total flavonoids varied based on leaf age. At a concentration of 200 ppb, a greater accumulation was found in the third (older) leaf than in the fourth leaf (younger). The anthocyanin of lettuce plants subjected to 100 and 200 ppb concentrations increased continuously for 48 h. Our results suggest that ozone control is a novel method that can effectively increase the accumulation of bioactive compounds in lettuce in a plant factory.

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Section: Discussionmentioning

confidence: 80%

Ozone control as a novel method to improve health-promoting bioactive compounds in red leaf lettuce (Lactuca sativa L.)

Lee

Gotō

2022

Front. Plant Sci.

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“…In hand with our results, higher doses of ozone have been reported to decrease the levels of GLS in Brassica napus exposed to 176 nL L −1 of O 3 /4 h/3 d [ 50 ], and Brassica nigra exposed to 120 ppb of O 3 for 5 d [ 51 ]. Recently, Han, et al [ 52 ], from a report on the effect of different O 3 exposure durations on the plant growth and biochemical quality of Brassica campestris L. ssp. Chinensis, proposed a mechanism of GLS in response to O 3 .…”

Section: Resultsmentioning

confidence: 99%

Phytochemical Enhancement in Broccoli Florets after Harvest by Controlled Doses of Ozone

Duarte-Sierra

Forney²,

Thomas³

et al. 2022

Foods

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The objective of this work was to examine the effect of controlled doses of O3 (0, 5 µL L−1 of O3 for 60 min, and 5 µL L−1 of O3 for 720 min) on the quality and phytochemical content of broccoli florets during postharvest storage. The optimal dose was found at 5 µL L−1 of O3 for 60 min, from the color retention of broccoli florets exposed to the gas treatment. Overall, the antioxidant capacity of the florets was significantly affected by both doses of O3 compared to the non-exposed florets. The profile of glucosinolates was determined for up to 14 days in broccoli florets stored at 4 °C by LC-MS. The amount of total glucobrassicins and total hydroxy-cinnamates in florets significantly (p ≤ 0.05) improved by the application of 5µL L−1 of O3 for 60 min compared to non-treated florets. The up-regulation of genes of the tryptophan-derived glucosinolate pathway was observed immediately after both treatments. The gene expression of CYP79A2 and CYP79B3 in broccoli was significantly higher in broccoli florets exposed to 5 µL L−1 of O3 for 720 min compared to non-exposed florets. Although enhancement of secondary metabolites can be achieved by the fumigation of broccoli florets with low doses of ozone, quality parameters, particularly weight loss, can be compromised.

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“…A significant decrease in leaf fresh and dry weight under O and OT conditions was observed (Figure 9). Many studies have indicated that prolonged O 3 exposure is typically detrimental to leaf growth and development [103], which is possibly due to O 3 -induced damage to mesophyll cells upon uptake into the plants [104]. Li et al [19] reported that the growth of eggplant (Solanum melongena L.) was significantly reduced in the presence of elevated O 3 .…”

Section: Discussionmentioning

confidence: 99%

Ozone Response of Leaf Physiological and Stomatal Characteristics in Brassica juncea L. at Supraoptimal Temperatures

Lee

Kwak

Park

et al. 2021

Land

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Plants are affected by the features of their surrounding environment, such as climate change and air pollution caused by anthropogenic activities. In particular, agricultural production is highly sensitive to environmental characteristics. Since no environmental factor is independent, the interactive effects of these factors on plants are essential for agricultural production. In this context, the interactive effects of ozone (O3) and supraoptimal temperatures remain unclear. Here, we investigated the physiological and stomatal characteristics of leaf mustard (Brassica juncea L.) in the presence of charcoal-filtered (target concentration, 10 ppb) and elevated (target concentration, 120 ppb) O3 concentrations and/or optimal (22/20 °C day/night) and supraoptimal temperatures (27/25 °C). Regarding physiological characteristics, the maximum rate of electron transport and triose phosphate use significantly decreased in the presence of elevated O3 at a supraoptimal temperature (OT conditions) compared with those in the presence of elevated O3 at an optimal temperature (O conditions). Total chlorophyll content was also significantly affected by supraoptimal temperature and elevated O3. The chlorophyll a/b ratio significantly reduced under OT conditions compared to C condition at 7 days after the beginning of exposure (DAE). Regarding stomatal characteristics, there was no significant difference in stomatal pore area between O and OT conditions, but stomatal density under OT conditions was significantly increased compared with that under O conditions. At 14 DAE, the levels of superoxide (O2-), which is a reactive oxygen species, were significantly increased under OT conditions compared with those under O conditions. Furthermore, leaf weight was significantly reduced under OT conditions compared with that under O conditions. Collectively, these results indicate that temperature is a key driver of the O3 response of B. juncea via changes in leaf physiological and stomatal characteristics.

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Plant responses to ozone: Effects of different ozone exposure durations on plant growth and biochemical quality of Brassica campestris L. ssp. chinensis

Cited by 26 publications

References 66 publications

Ozone control as a novel method to improve health-promoting bioactive compounds in red leaf lettuce (Lactuca sativa L.)

Ozone control as a novel method to improve health-promoting bioactive compounds in red leaf lettuce (Lactuca sativa L.)

Phytochemical Enhancement in Broccoli Florets after Harvest by Controlled Doses of Ozone

Ozone Response of Leaf Physiological and Stomatal Characteristics in Brassica juncea L. at Supraoptimal Temperatures

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