[논문]Stomata Density and Size of Acer palmatum to the Elevated Ozone

Ryang, Soo Zin; Woo, Su Young

Stomata Density and Size of Acer palmatum to the Elevated Ozone 원문보기

韓國林學會誌 = Journal of Korean Forest Society, v.97 no.5 = no.180, 2008년, pp.552 - 554

Ryang, Soo Zin (Department of Environmental Horticulture, University of Seoul) , Woo, Su Young (Department of Environmental Horticulture, University of Seoul)

Abstract ▼ AI-Helper

Acer palmatum was selected and its responses to elevated ozone were subsequently measured during growing periods. Ozone concentration of this study was compared to the calculated AOT40 value. A. palmatum had significantly many but small stomata size to the ozone stress. The length of stomata of A. palmatum was reduced from 5.6 to $5.0{\mu}m$ to the ozone exposure. However, the number of stomata (density) was increased from 102 to 131 in the $500{\times}500{\mu}m$ leaf area.

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문제 정의

This study was performed to establish basic information on the Acer palmatum responding to elevated ozone. The main study purposes are 1) to determine the relevance of ozone exposure protocol in this study in comparison with to AOT 40, and 2) to observe the leaf stomata density and size to the elevated ozone.

제안 방법

In applying the concept of AOT 40 to this study, we summed up the ozone concentration over the 8 hours of (the hours of ozone treatment) during the study and assumed the ozone concentration was below 40 nmol mol-1 following the greenhouse accilimation period before the study commenced. We compared each point of ozone concentration according to the ozone protocol to the value calculated by AOT 40 (Figure 1).
Stomata density and length were measured to investigate the changes after ozone exposure. The stomata density of A.
The leaf surfaces were observed with SEM to investigate the changes in the stomata features and shape, and the leaf abaxial surfaces under the elevated ozone (Figure 2). Stomata density and length were measured to investigate the changes after ozone exposure.

데이터처리

The numbers in parentheses are standard deviation (SD). Data was analyzed using One-way ANOVA between control and treatment at the significance level of 0.05. Different letters indicate different means at 5% significance level.
Statistical analysis of the effect of ozone on the stomata density and size were examined usin응 One and Two-way ANOVA. The significant difference between treatment and control was determined with Duncan's multiple range test (DMRT) was performed.
ANOVA. The significant difference between treatment and control was determined with Duncan's multiple range test (DMRT) was performed. Differences were considered significant at pv0.

후속연구

ozone. Based on these results, we plan to investig어e the antioxidant mechanism of each plant in order to more clearly elucidate the physiology. In addition, these accu-m니ated and integrated results from each plant will be helpful to make an index for measuring a plant's responses to elevated ozone (Tausz et 이.

참고문헌 (14)

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원문보기 상세보기
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상세보기
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상세보기
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상세보기
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상세보기
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상세보기
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상세보기
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상세보기
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상세보기
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상세보기
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