An organ-specific role for ethylene in rose petal expansion during dehydration and rehydration

doi:10.1093/jxb/ert092

CORC > 中国农业科学院 > 蔬菜花卉研究所

	An organ-specific role for ethylene in rose petal expansion during dehydration and rehydration
	Liu, Daofeng 1,2; Liu, Xiaojing 1,3; Meng, Yonglu 1; Sun, Cuihui 1; Tang, Hongshu 1; Jiang, Yudong 1; Khan, Muhammad Ali 1; Xue, Jingqi 4; Ma, Nan 1; Gao, Junping 1
刊名	JOURNAL OF EXPERIMENTAL BOTANY
	2013
卷号	64 期号:8 页码:2333-2344
关键词	cut roses dehydration ethylene biosynthesis ethylene perception petal expansion rehydration
ISSN号	0022-0957
DOI	10.1093/jxb/ert092
通讯作者	Liu, Daofeng
英文摘要	Dehydration is a major factor resulting in huge loss from cut flowers during transportation. In the present study, dehydration inhibited petal cell expansion and resulted in irregular flowers in cut roses, mimicking ethylene-treated flowers. Among the five floral organs, dehydration substantially elevated ethylene production in the sepals, whilst rehydration caused rapid and elevated ethylene levels in the gynoecia and sepals. Among the five ethylene biosynthetic enzyme genes (RhACS15), expression of RhACS1 and RhACS2 was induced by dehydration and rehydration in the two floral organs. Silencing both RhACS1 and RhACS2 significantly suppressed dehydration- and rehydration-induced ethylene in the sepals and gynoecia. This weakened the inhibitory effect of dehydration on petal cell expansion. -glucuronidase activity driven by both the RhACS1 and RhACS2 promoters was dramatically induced in the sepals, pistil, and stamens, but not in the petals of transgenic Arabidopsis. This further supports the organ-specific induction of these two genes. Among the five rose ethylene receptor genes (RhETR15), expression of RhETR3 was predominantly induced by dehydration and rehydration in the petals. RhETR3 silencing clearly aggravated the inhibitory effect of dehydration on petal cell expansion. However, no significant difference in the effect between RhETR3-silenced flowers and RhETR-genes-silenced flowers was observed. Furthermore, RhETR-genes silencing extensively altered the expression of 21 cell expansion-related downstream genes in response to ethylene. These results suggest that induction of ethylene biosynthesis by dehydration proceeds in an organ-specific manner, indicating that ethylene can function as a mediator in dehydration-caused inhibition of cell expansion in rose petals.
学科主题	Plant Sciences ; PLANT SCIENCES
语种	英语
出版者	OXFORD UNIV PRESS
WOS记录号	WOS:000319433200018
内容类型	期刊论文
源URL	[http://111.203.20.206/handle/2HMLN22E/101896]
专题	蔬菜花卉研究所
作者单位	1.China Agr Univ, Dept Ornamental Hort, Beijing 100193, Peoples R China 2.Southwest Univ, Coll Hort & Landscape, Chongqing 400715, Peoples R China 3.Zhejiang Acad Agr Sci, Flower Res & Dev Ctr, Hangzhou 311202, Zhejiang, Peoples R China 4.Chinese Acad Agr Sci, Inst Vegetables & Flowers, Beijing 100081, Peoples R China
推荐引用方式 GB/T 7714	Liu, Daofeng,Liu, Xiaojing,Meng, Yonglu,et al. An organ-specific role for ethylene in rose petal expansion during dehydration and rehydration[J]. JOURNAL OF EXPERIMENTAL BOTANY,2013,64(8):2333-2344.
APA	Liu, Daofeng.,Liu, Xiaojing.,Meng, Yonglu.,Sun, Cuihui.,Tang, Hongshu.,...&Gao, Junping.(2013).An organ-specific role for ethylene in rose petal expansion during dehydration and rehydration.JOURNAL OF EXPERIMENTAL BOTANY,64(8),2333-2344.
MLA	Liu, Daofeng,et al."An organ-specific role for ethylene in rose petal expansion during dehydration and rehydration".JOURNAL OF EXPERIMENTAL BOTANY 64.8(2013):2333-2344.