Changes of Bioluminescence and Nucleic Acid Metabolism in Chrysanthemum During Floral Differentiation(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Title:: Changes of Bioluminescence and Nucleic Acid Metabolism in Chrysanthemum During Floral Differentiation

Author(s):: LIN Gui-yu¹; TIAN Su-bo²; ZHENG Cheng-shu³; 4; HU Yong-jun²; LI Xiao-gang²; 1.Weifang University of Science and Technology，Weifang，Shandong 262700；
2.Shandong Shouguang Vegetable Industry Group Co.,Ltd，Shouguang，Shandong 262700；
3.State Key Laboratory of Crop Biology，Key Laboratory of Horticulture，Taian，Shandong 271018;
4.Department of Mechatronic Engineering，Shandong Agricultural University，Taian，Shandong 271018

Keywords:: chrysanthemum; floral differentiation; bioluminescence; nucleic acid

Abstract:: Taking Dendranthema grandiflorium (Ramat.) Kitam.‘Shenma’ as materials，the dynamic changes of bioluminescence intensity and contents of nucleic acid in chrysanthemum leaves during floral differentiation were studied.The results showed that the intensities of ultraweak luminescence，fluorescence and phosphorescence，and contents of DNA and RNA were increased 178.5%，133.4%，141.3%，162.2% and 132.1% respectively at initial stage of floral bud differentiation (Ⅱ) compared with those of control plants，then intensities of ultraweak luminescence，fluorescence and content of DNA reduced slowly respectively at the stage of involucre primordial differentiation (Ⅲ)，the stage of floret primordial differentiation(Ⅳ) and the stage of crown form (Ⅴ)，while phosphorescence intensity and RNA content increased continuously，and then decreased.But all of indexes of above maintained stable status during all stages of controls of non-short day treatments.This suggested that the bioluminescence intensity increased，and close relative to nucleic acid metabolism of leaves during differentiation of chrysanthemum.

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Last Update: 2014-08-27