Effects of Temperature Range and Light Intensity on Content of CBT-diols and Expression of CYC-1 and CYP71D16 in Tobacco

doi:10.7668/hbnxb.2014.05.026

Abstract

Abstract: Using 8306 and 12451 tobacco cultivars as the materials,the effects of temperature range between day and night and light intensity on the content of CBT-diols and the expression of CYC-1 and CYP71D16 were studied.When the temperature range was 15 ℃,the content of CBT-diols and the expression levels of CYC-1 and CYP71D16 were significant higher than those in the temperature range of 0 ℃.This suggests that larger temperature range could promote the up-regulated expression of CYC-1 and CYP71D16,so the CBT-diols accumulated more sufficiently.In the condition of 100 000 lx light intensity,the content of CBT-diols and the expression levels of CYC-1 and CYP71D16 were significantly higher than those in the condition of 40 000 lx light intensity.This suggests that shading inhibited the expression of CYC-1 and CYP71D16 and larger light intensity promoted the synthesis of CBT-diols.

Key words: Cembratrien-diol, Gene expression, Temperature range between day and night, Light intensity

CLC Number:

Q78
S572.03

WANG Dong, ZHANG Xiao-quan, PENG Yu-fu, ZHANG Di, LI Li-hua, YANG Tie-zhao. Effects of Temperature Range and Light Intensity on Content of CBT-diols and Expression of CYC-1 and CYP71D16 in Tobacco[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2014, 29(5): 150-155. doi: 10.7668/hbnxb.2014.05.026.

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