title: Regulation of biosynthesis and emission of volatile phenylpropanoids/benzenoids in petunia× hybrida flowers by multi-factors of circadian clock, light, and temperature.
abstract: Floral volatile phenylpropanoids and benzenoids (VPBs) play important ecological functions and have potential economic applications. Little is known about how multi-factors in integration regulate the formation and emission of floral VPBs. In the present study, we investigated effects of multi factors including endogenous circadian clock, light, and temperature on the formation and emission of VPBs, which are major volatiles in flowers of Petunia× hybrida cv. 'Mitchell Diploid'. Endogenous circadian clock was proposed as the most important factor regulating rhythmic emission of VPBs and expressions of structural genes involved in the upstream biosynthetic pathway of VPBs, but did not affect expression levels of structural genes involved in the downstream pathway and VPBs-related regulators. In contrast to light, temperature was a more constant factor affecting emission of VPBs. VPBs emission could be inhibited within a short time by increasing temperature. The information will contribute to our understanding of emission mechanism of floral volatiles.
authors.affiliation: Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement & Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Xingke Road 723, Tianhe District, Guangzhou, 510650, China; University of Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing, 100049, China.
authors.forename: Sihua
authors.initials: S
authors.lastname: Cheng
authors.affiliation: Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement & Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Xingke Road 723, Tianhe District, Guangzhou, 510650, China.
authors.forename: Xiumin
authors.initials: X
authors.lastname: Fu
authors.affiliation: Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement & Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Xingke Road 723, Tianhe District, Guangzhou, 510650, China.
authors.forename: Xin
authors.initials: X
authors.lastname: Mei
authors.affiliation: Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement & Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Xingke Road 723, Tianhe District, Guangzhou, 510650, China.
authors.forename: Ying
authors.initials: Y
authors.lastname: Zhou
authors.affiliation: College of Food, South China Agricultural University, Wushan Road, Tianhe District, Guangzhou, 510642, China; Juxiangyuan Health Food (Zhongshan) Co., Ltd., No. 13, Yandong Second Road, Torch Development Zone, Zhongshan, 528400, China.
authors.forename: Bing
authors.initials: B
authors.lastname: Du
authors.affiliation: Graduate School of Science and Technology, Shizuoka University, 3-5-1 Johoku, Naka-ku, Hamamatsu, 432-8561, Japan.
authors.forename: Naoharu
authors.initials: N
authors.lastname: Watanabe
authors.affiliation: Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement & Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Xingke Road 723, Tianhe District, Guangzhou, 510650, China; University of Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing, 100049, China. Electronic address: zyyang@scbg.ac.cn.
authors.forename: Ziyin
authors.initials: Z
authors.lastname: Yang
mesh_terms: D001554:Benzene / Q000378:metabolism*; D053898:Biosynthetic Pathways / Q000235:genetics / Q000528:radiation effects; D057906:Circadian Clocks / Q000528:radiation effects*; D003433:Crosses, Genetic; D035264:Flowers / Q000235:genetics / Q000378:metabolism*; D018506:Gene Expression Regulation, Plant / Q000528:radiation effects; D008027:Light; D008954:Models, Biological; D032306:Petunia / Q000235:genetics / Q000378:metabolism* / Q000528:radiation effects; D020005:Propanols / Q000378:metabolism*; D013696:Temperature; D055549:Volatile Organic Compounds / Q000378:metabolism*
chemical_list: D020005:Propanols; D055549:Volatile Organic Compounds; C439395:1-phenylpropanol; D001554:Benzene
keywords: Biosynthesis; Multiple factor; Petunia; Plant volatile; Rhythmic emission