Next Article in Journal
Effect of Typhoon-Generated Cold Wake on the Subsequent Typhoon Tembin and Its Sensitivity to Horizontal Resolutions
Next Article in Special Issue
A Cohort Study on Respiratory Symptoms and Diseases Caused by Toner-Handling Work: Longitudinal Analyses from 2003 to 2013
Previous Article in Journal
Volatile Organic Compounds in a Petrochemical Region in Arid of NW China: Chemical Reactivity and Source Apportionment
Previous Article in Special Issue
Trace Metal Content and Health Risk Assessment of PM10 in an Urban Environment of León, Mexico
Open AccessArticle

Seasonal Changes in Interclone Variation Following Ozone Exposure on Three Major Gene Pools: An Analysis of Cryptomeria Japonica Clones

1
Forestry and Forest Products Research Institute; Tsukuba 305-8687, Japan
2
Hokkaido Research Center, Forestry and Forest Products Research Institute, Sapporo 062-8516, Japan
3
Institute of Agriculture, Tokyo University of Agriculture and Technology, Fuchu 183-8509, Japan
*
Author to whom correspondence should be addressed.
Atmosphere 2019, 10(11), 643; https://doi.org/10.3390/atmos10110643
Received: 29 September 2019 / Revised: 18 October 2019 / Accepted: 22 October 2019 / Published: 24 October 2019
(This article belongs to the Special Issue Exposure Assessment of Air Pollution)
Recently, there has been a continuous increase in the concentration of tropospheric ozone in urban forests in Japan. Since monoterpenes are precursors to ozone, we need to evaluate the effects of ozone exposure on all tree species that are considered to be sources of monoterpenes. Cryptomeria japonica, which is the most widely planted afforestation tree, is classified into three different gene pools. However, the interclone variation for seasonal changes in the ozone exposure effect has not been evaluated. Thus, free-air ozone enhancement experiments were conducted using three representative clones of C. japonica in the summer and winter. After exposure to twice the ozone concentration in the ambient atmosphere, the effect on the monoterpene emission rate was found to be considerably different among the clones and for the different seasons. The monoterpene emission rate after ozone exposure increased in winter and summer in the native clones (Donden and Yakushima) in the snow area and heavy rain area, respectively. Since monoterpenes are antibacterial substances, each clone adapted sensitivity to stress during each season upon considerable damage. These results suggest that not only differences between tree species but also differences between clones are important for evaluating seasonal variation characteristics after ozone exposure. View Full-Text
Keywords: biogenic volatile organic compound (BVOC); branch enclosure method; automated thermal desorption gas chromatography mass spectrometry (ATD-GC/MS); G93 algorithm; free-air ozone enhancement experiment biogenic volatile organic compound (BVOC); branch enclosure method; automated thermal desorption gas chromatography mass spectrometry (ATD-GC/MS); G93 algorithm; free-air ozone enhancement experiment
Show Figures

Figure 1

MDPI and ACS Style

Miyama, T.; Tobita, H.; Uchiyama, K.; Yazaki, K.; Ueno, S.; Uemura, A.; Matsumoto, A.; Kitao, M.; Izuta, T. Seasonal Changes in Interclone Variation Following Ozone Exposure on Three Major Gene Pools: An Analysis of Cryptomeria Japonica Clones. Atmosphere 2019, 10, 643.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop