Different Responses of an Invasive Clonal Plant Wedelia trilobata and its Native Congener to Gibberellin: Implications for Biological Invasion

doi:10.1007/s10886-016-0670-6

	Different Responses of an Invasive Clonal Plant Wedelia trilobata and its Native Congener to Gibberellin: Implications for Biological Invasion
	Dai, Zhi-Cong 1,2,3; Fu, Wei 2; Qi, Shan-Shan 2; Zhai, De-Li4,5 ; Chen, Si-Chong 6; Wan, Ling-Yun 2; Huang, Ping 2; Du, Dao-Lin 2,3
	2016-02-01
发表期刊	JOURNAL OF CHEMICAL ECOLOGY
卷号	42 期号:2 页码:85-94
摘要	The invasive clonal plant Wedelia trilobata contains higher levels of ent-kaurane diterpenes, which are precursors of gibberellins (GAs), and higher rates of clonal growth than its native congener W. chinensis in invaded habitats. We hypothesized that the higher levels of endogenous GAs facilitate greater ramet growth in W. trilobata compared with W. chinensis. We quantified endogenous levels of GA(1+3) in the two species and compared their growth responses to the changes of endogenous and exogenous GA(3) by using short-term and long-term hydroponics experiments. After a period of homogeneous cultivation, levels of endogenous GA(1+3) were higher in W. trilobata than in W. chinensis. The reduction of endogenous GAs repressed the emergence of adventitious roots and the growth of W. trilobata in the initial cultivation stage, and inhibited its shoot elongation and biomass. Levels of endogenous GA(1+3) were positively correlated with the length of shoots and adventitious roots of W. trilobata. Adventitious roots of W. trilobata also emerged earlier and grew faster when treated with exogenous GA(3). In contrast, exogenous GA(3) treatment inhibited the length of adventitious roots in W. chinensis, and levels of endogenous GA(1+3) did not correlate with shoot or adventitious root length. Our study suggests that GAs accelerate the rapid clonal growth of W. trilobata, more than that of its native congener W. chinensis, illustrating the relationship between plant hormones and the clonal growth of invasive plants. These findings are important for understanding the mechanisms associated with the invasiveness of clonal plants and their potential management.
关键词	Clonal Plants Rapid Clonal Growth Biological Invasion Plant Hormone Wedelia Trilobata
DOI	10.1007/s10886-016-0670-6
收录类别	SCI
语种	英语
WOS记录号	WOS:000373015800001
引用统计
文献类型	期刊论文
条目标识符	http://ir.kib.ac.cn/handle/151853/26189
专题	资源植物与生物技术所级重点实验室
作者单位	1.Jiangsu Univ, Jingjiang Coll, Zhenjiang 212013, Peoples R China 2.Jiangsu Univ, Sch Environm & Safety Engn, Inst Environm & Ecol, Zhenjiang 212013, Peoples R China 3.Jiangsu Univ, Key Lab Modern Agr Equipment & Technol, Minist Educ & Jiangsu Prov, Zhenjiang 212013, Peoples R China 4.Cent & East Asia Off, World Agroforestry Ctr ICRAF, Kunming 650201, Peoples R China 5.Chinese Acad Sci, Kunming Inst Bot, CMES, Kunming 650201, Peoples R China 6.Univ New S Wales, Sch Biol Earth & Environm Sci, Evolut & Ecol Res Ctr, Sydney, NSW 2052, Australia
推荐引用方式 GB/T 7714	Dai, Zhi-Cong,Fu, Wei,Qi, Shan-Shan,et al. Different Responses of an Invasive Clonal Plant Wedelia trilobata and its Native Congener to Gibberellin: Implications for Biological Invasion[J]. JOURNAL OF CHEMICAL ECOLOGY,2016,42(2):85-94.
APA	Dai, Zhi-Cong.,Fu, Wei.,Qi, Shan-Shan.,Zhai, De-Li.,Chen, Si-Chong.,...&Du, Dao-Lin.(2016).Different Responses of an Invasive Clonal Plant Wedelia trilobata and its Native Congener to Gibberellin: Implications for Biological Invasion.JOURNAL OF CHEMICAL ECOLOGY,42(2),85-94.
MLA	Dai, Zhi-Cong,et al."Different Responses of an Invasive Clonal Plant Wedelia trilobata and its Native Congener to Gibberellin: Implications for Biological Invasion".JOURNAL OF CHEMICAL ECOLOGY 42.2(2016):85-94.

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