ibclogo XVI International Botanical Congess


Abstract Number: 2202
Poster No. = 2239


TRANSCRIPTION OF CRYPTOCHROMES ARE REGUTALED BY PHYTOCHROME IN THE FERN ADIANTUM


Takato Imaizumi1, 2, Takeshi Kanegae1, and Masamitsu Wada1, 2 (Dept. of Biology, Tokyo Metropolitan Univ., Tokyo, JAPAN, 2 National Institute for Basic Biology, Okazaki, JAPAN)


We described many blue-light responses in the fern Adiantum capillus-veneris. To understand the molecular mechanisms, we cloned five cryptochrome-homologues (CRY1, 2, 3, 4,and 5) at first. To analyze the correlation between these responses and CRY genes, we investigated the expression patterns in various developmental stages and in different light conditions. As a result, CRY1, CRY2 and CRY3 were not regulated by light. CRY4 and CRY5 showed unique light-regulated expression patterns. Further analyses revealed that these genes were especially regulated by phytochrome. We are investigating intracellular localizations of CRYs using the transient expression technique. We will also present these data and discuss the function of Adiantum CRYs.


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