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Publication Type J
Authors Estrelles, E; Prieto-Mossi, J; Escriba, MC; Ferrando, I; Ferrer-Gallego, P; Laguna, E; Ibars, AM; Soriano, P
Author Full Name Estrelles, Elena; Prieto-Mossi, Josefa; Carmen Escriba, M.; Ferrando, Inmaculada; Ferrer-Gallego, Pablo; Laguna, Emilio; Ibars, Ana M.; Soriano, Pilar
Title Hydroperiod length as key parameter controlling seed strategies in Mediterranean salt marshes: The case of Halopeplis amplexicaulis
Source FLORA
Language English
Document Type Article
Author Keywords Maternal environmental effect; Annual plants; Seed dormancy; Bet-hedging; Opportunistic germination strategy; Halopriming
Keywords Plus BET-HEDGING GERMINATION; DESERT ANNUALS; RESPONSES; TEMPERATURE; TRAITS; PERFOLIATA; DORMANCY; PREDICT; LIGHT; SIZE
Abstract The comprehension of plant biology and the response to the environment is fundamental to achieve the optimal skills to manage and conserve the fine equilibrium between biotic and abiotic parameters regulating natural biodiversity in salt marshes. The behaviour of annuals living in these stressful conditions is poorly understood and constitutes a good model for a better understanding of this relationship. We thus identified the determinant environmental factors involved in population survival of Halopeplis amplexicaulis, a threatened annual species inhabiting salt marshes. To achieve this objective, maternal climatic parameters were analyzed in seeds collected in different years, and correlated to seed dimensions (length, width and length/width ratio) and mass, and also to germination responses of the next generation. Our results proved a direct correlation between seed factors and the maternal environment determining the hydroperiod length, particularly autumn and winter temperatures, responsible of life cycle extent. Population survival is ensured by a narrow adaptation to climatic conditions through a natural halopriming of seeds. The combination of the two complementary germination strategies verified (opportunistic vs. bet-hedging) depending on the climatic conditions of the ripening year, is revealed as a density regulation mechanism controlling seed bank dynamics.
Author Address [Estrelles, Elena; Prieto-Mossi, Josefa; Ibars, Ana M.; Soriano, Pilar] Univ Valencia, Bot Garden ICBiBE, Quart 80, Valencia 46008, Spain; [Carmen Escriba, M.; Ferrando, Inmaculada; Ferrer-Gallego, Pablo; Laguna, Emilio] Generalitat Valenciana, CIEF Ctr Forestry Res & Expt, Comarques Pais Valencia 114, Valencia 46930, Spain; [Carmen Escriba, M.; Ferrando, Inmaculada; Ferrer-Gallego, Pablo] VAERSA, Avda Cortes Valencianas 20, Valencia 46015, Spain
Reprint Address Soriano, P (reprint author), Univ Valencia, Bot Garden ICBiBE, Quart 80, Valencia 46008, Spain.
E-mail Address pilar.soriano@uv.es
Funding Agency and Grant Number European Union's EAFRD funds through the Operative Programme for the Valencian Community 2007-2013 [227]
Funding Text This study was supported by European Union's EAFRD funds through the Operative Programme for the Valencian Community 2007-2013, regional measure 227 'Conservation and development of the Natura 2000 Network'.
Cited Reference Count 56
Publisher ELSEVIER GMBH, URBAN & FISCHER VERLAG
Publisher City JENA
Publisher Address OFFICE JENA, P O BOX 100537, 07705 JENA, GERMANY
ISSN 0367-2530
29-Character Source Abbreviation FLORA
ISO Source Abbreviation Flora
Publication Date DEC
Year Published 2018
Volume 249
Beginning Page 124
Ending Page 132
Digital Object Identifier (DOI) 10.1016/j.flora.2018.10.006
Page Count 9
Web of Science Category Plant Sciences; Ecology
Subject Category Plant Sciences; Environmental Sciences & Ecology
Document Delivery Number HB4YT
Unique Article Identifier WOS:000451064500014
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