干旱区生态环境知识资源中心(Arid): Seed bank dynamics of an invasive alien species, Helianthus annuus L.

Arid

DOI	10.1093/jpe/rtaa016
	Seed bank dynamics of an invasive alien species, Helianthus annuus L.
	Presotto, Alejandro; Hernandez, Fernando; Casquero, Mauricio; Vercellino, Roman; Pandolfo, Claudio; Poverene, Monica; Cantamutto, Miguel
通讯作者	Presotto, A
来源期刊	JOURNAL OF PLANT ECOLOGY
ISSN	1752-9921
EISSN	1752-993X
出版年	2020
卷号	13 期号:3 页码:313-322
英文摘要	Aims The ability to form persistent seed banks is one of the best predictors of species' potential to establish in new ranges. Wild sunflower is native to North America where the formation of persistent seed banks is promoted by disturbance and it plays a key role on the establishment and persistence of native populations. However, the role of the seed banks on the establishment and persistence of invasive populations has not been studied. Here, we evaluated the role of seed bank and disturbance on the establishment and fitness, and seed persistence in the soil in several sunflower biotypes collected in ruderal (wild Helianthus annuus) and agrestal (natural crop wild hybrid) habitats of Argentina as well as volunteer populations (progeny of commercial cultivars). Methods In a seed-bank experiment, we evaluated emergence, survival to reproduction, survival of emerged seedlings, inflorescences per plant and per plot under disturbed and undisturbed conditions over 2 years; in a seed-burial experiment, we evaluated seed persistence in the soil over four springs (6, 18, 30 and 42 months). Important Findings Overall, seedling emergence was early in the growing season (during winter), and it was promoted by disturbance, especially in the first year. Despite this, the number of inflorescences per plot was similar under both conditions, especially in ruderals. In the second year, emergence from the seed bank was much lower, but the survival rate was higher. In the seed-burial experiment, genetic differences were observed but seeds of ruderals arid agrestals persisted up to 42 months while seeds of the volunteer did not persist longer than 6 months. The agrestal biotype showed an intermediate behavior between ruderals and volunteers in both experiments. Our findings showed that wild and crop-wild sunflower can form persistent seed banks outside its native range and that disturbance may facilitate its establishment in new areas.
英文关键词	seed bank seed persistence wild sunflower invasive alien species ruderal agrestal
类型	Article
语种	英语
开放获取类型	Green Published
收录类别	SCI-E
WOS记录号	WOS:000544169500008
WOS关键词	GENETIC DIVERSITY ; VERTICAL-DISTRIBUTION ; WEEDY POPULATIONS ; SAND BURIAL ; WILD ; SUNFLOWER ; PERSISTENCE ; GERMINATION ; SOIL ; DORMANCY
WOS类目	Plant Sciences ; Ecology ; Forestry
WOS研究方向	Plant Sciences ; Environmental Sciences & Ecology ; Forestry
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/324862
作者单位	[Presotto, Alejandro; Hernandez, Fernando; Vercellino, Roman; Pandolfo, Claudio; Poverene, Monica] Univ Nacl Sur UNS, Dept Agron, San Andres 800, RA-8000 Bahia Blanca, Buenos Aires, Argentina; [Presotto, Alejandro; Hernandez, Fernando; Vercellino, Roman; Pandolfo, Claudio; Poverene, Monica] Univ Nacl Sur UNS, CONICET, CERZOS, Camino La Carrindanga Km 7, RA-8000 Bahia Blanca, Buenos Aires, Argentina; [Casquero, Mauricio] Corteva Agrisci, Integrated Field Sci, RN N178 Km 11, RA-2700 Pergamino, Argentina; [Cantamutto, Miguel] Inst Nacl Tecnol Agr INTA, Estn Expt Agr Hilario Ascasubi, RN N3 Km 794, RA-8142 Hilario Ascasubi, Argentina
推荐引用方式 GB/T 7714	Presotto, Alejandro,Hernandez, Fernando,Casquero, Mauricio,et al. Seed bank dynamics of an invasive alien species, Helianthus annuus L.[J],2020,13(3):313-322.
APA	Presotto, Alejandro.,Hernandez, Fernando.,Casquero, Mauricio.,Vercellino, Roman.,Pandolfo, Claudio.,...&Cantamutto, Miguel.(2020).Seed bank dynamics of an invasive alien species, Helianthus annuus L..JOURNAL OF PLANT ECOLOGY,13(3),313-322.
MLA	Presotto, Alejandro,et al."Seed bank dynamics of an invasive alien species, Helianthus annuus L.".JOURNAL OF PLANT ECOLOGY 13.3(2020):313-322.