Carotenoids and Chlorophyll are not the Chromophores of Blue Light-Induced Prehaustoria in Dodder （Cuscuta campestris） Seedlings  

作　　者：M. A. Haidar 

机构地区：[1]Department of Agricultural Sciences, Faculty of Agricultural and Food Sciences, American University of Beirut, Beirut 1107-2020,Lebanon

出　　处：《Journal of Agricultural Science and Technology(B)》2011年第3期323-330,共8页农业科学与技术（B）

摘　　要：Previous studies demonstrated that cryptochromes are involved in blue light-induced coiling and prehaustoria development in young de-etiolated dodder seedlings. In this study, we suggest that carotenoids and chlorophyll are not the blue light absorbing chromophores involved in the mediation of prehaustoria development to blue light. Norflurazon-bleached dodder segments coiled and formed prehaustoria under blue light. However, norflurazon significantly reduced prehaustoria number （62%） under a mixture of red and far-red light, suggesting that phytochromes could be altered by norflurazon.

关 键 词：Blue light carotenoids DODDER phytochromes. 

分 类 号：Q562[生物学—生物化学] S453[农业科学—植物保护]