Male flowering index can predict the annual airborne pollen count of Cryptomeria japonica at different altitudes
نویسندگان
چکیده
منابع مشابه
Contribution of airborne fine particles containing Cryptomeria japonica pollen allergens to airborne organic carbonaceous aerosols during a severe pollination episode
Japanese cedar pollinosis has been recognized recently as a serious social problem because of its high prevalence in Japan. It is well-known that the pollen grains of Cryptomeria japonica pollen (so-called Japanese cedar pollen) usually exist as coarse particles about 30 μm. However, it was supposed that the major allergen Cry j 1 (Cry j 1 particles) could be released to the atmosphere as respi...
متن کاملForecasting models for sugi (Cryptomeria japonica D. Don) pollen count showing an alternate dispersal rhythm.
BACKGROUND Pollen information is indispensable for allergic individuals and clinicians. This study aimed to develop forecasting models for the total annual count of airborne pollen grains based on data monitored over the last 20 years at the Mie Chuo Medical Center, Tsu, Mie, Japan. METHODS Airborne pollen grains were collected using a Durham sampler. Total annual pollen count and pollen coun...
متن کاملTowards male sterility in Cryptomeria japonica using the male strobilus-specific genes of C. japonica
Background Cryptomeria japonica D. Don (sugi) is one of the most important Japanese conifer species. Rapid improvement of the wood trait (e.g., growth speed and wood quality) using a conventional breeding approach is not possible, because breeding of coniferous tree requires a very long time. Genetic modification might be a powerful tool to shorten the time needed to breed trees compared with t...
متن کاملPossible role of climate change in the pollen scatter of Japanese cedar Cryptomeria japonica in Japan
We conducted an atmospheric pollen survey using a Durham sampler from 1983 through 1998 in Toyama City, Japan. We investigated yearly changes in the pollen season of Japanese cedar Cryptomeria japonica and analyzed the relationships between climatic factors and changes in the pollen counts. The results were as follows: (1) The first day of the Japanese cedar pollen season advanced from mid-Marc...
متن کاملA clinical study of Japanese cedar (Cryptomeria japonica) pollen-induced asthma.
BACKGROUND Grass and birch pollens are known to induce asthma. However there are few reports about other pollen-induced asthma. Japanese cedar is the most common allergen in rhinitis in Japan but is controversial on whether it can provoke asthma. METHODS To clarify Japanese cedar pollen-induced asthma, we studied adult patients who were sensitized only to the Japanese cedar (CAP-RAST > = 2) a...
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ژورنال
عنوان ژورنال: Allergology International
سال: 2000
ISSN: 1323-8930
DOI: 10.1046/j.1440-1592.2000.00179.x