%0 Journal Article
%A HUANG Qing-Yun
%A HUANG Yi-Jin
%A LI Zi-Yang
%A LIN Chun-Song
%A LIU Yu-Mei
%A XU Su-Xia
%A XU Yi-Ding
%T Comparison of Reproductive Biology Including Morphology of Reproductive Organs,Viability of Pollens,Flower Visitors,and Flavonols Accumulation Between Fertile and Sterile Cultivars in <i>Bougainvillea</i>
%D 2018
%R 10.7525/j.issn.1673-5102.2018.06.009
%J Bulletin of Botanical Research
%P 860-868
%V 38
%N 6
%X Plants in <i>Bougainvillea</i> are characterized with high sterility. In this study, morphology of reproductive organs, viability of pollens, flower visitors, and flavonols accumulation were compared between two sterile and four fertile cultivars. The calyx in four fertile cultivars was oval and bigger than that in other sterile cultivars. Pollens were size-consistent in fertile cultivars. Viability of pollens with 11.1 to 46.5 germination rate in fertile cultivars was much higher than that in the sterile. Seven kinds of insect visitors were found in six cultivars, which displayed no discrimination among various cultivars. The results indicated that kaempferol/and quercetin/glycosylated derivatives were the major flavonols accumulating in pollens using the florescence dye, diphenylboric acid 2-aminoethyl ester (DPBA). Florescence strength in tips of pollen tubes was much robuster than that in other parts. Accumulation of flavonols resulted in sharp difference between fertile cultivars and sterile cultivars in the study, which suggested that flavonols especially quercetin might play positive roles in fertility of plants in <i>Bougainvillea</i>.
%U https://bbr.nefu.edu.cn/EN/10.7525/j.issn.1673-5102.2018.06.009