文章基本信息

标题：Changes in Grain Size and Grain Storage Protein of Rice (Oryza Sativa L.) in Response to Elevated UV-B Radiation under Outdoor Conditions
其他标题：Changes in Grain Size and Grain Storage Protein of Rice (Oryza Sativa L.) in Response to Elevated UV-B Radiation under Outdoor Conditions
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作者：Jun HIDEMA ; WunHui ZHANG ; Mitsuru YAMAMOTO 等
期刊名称：Journal of Radiation Research
印刷版ISSN：0449-3060
电子版ISSN：1349-9157
出版年度：2005
卷号：46
期号：2
页码：143-149
DOI：10.1269/jrr.46.143
摘要：Variation in growth, grain size and grain storage protein content of rice ( Oryza sativa L.) in response to elevated UV-B radiation under sunlight was examined in a cool rice-growing region of Miyagi Prefecture, Japan, in 1999, 2001 and 2002. Tiller number, dry mass, panicle number, grain yield and grain size significantly decreased under elevated UV-B radiation in 2001 and 2002. The effects of elevated UV-B radiation on the reduction of each growth parameter were greatly enhanced by daily lower temperature during the ripening stage in those two years. On the contrary, total grain nitrogen content and grain storage protein content significantly increased under elevated UV-B radiation in 2001 and 2002. Among grain storage proteins, glutelin content significantly increased but albumin-globulin and prolamin contents did not. It was thus evident that not only grain size but also grain storage protein of rice was markedly influenced due to elevated UV-B radiation.
关键词：Grain size; Grain storage protein; Growth; Rice ( Oryza sativa ); Ultraviolet-B Radiation