Chemical seed priming alleviates salinity stress and improves Sulla carnosa germination in the saline depression of Tunisia

Abstract In the saline depressions (Sebkhas) of Tunisia, Sulla carnosa expresses anarchic distribution, sometimes in association with halophytes sometimes individually. In order to explain this distribution, we investigated the effects of salinity on seed germination, the osmotic and toxic limiting...

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Autores principales:	Amal Bouzidi, Abdelmajid Krouma, Mohamed Chaieb
Formato:	article
Lenguaje:	EN
Publicado:	Wiley 2021
Materias:	germination osmotic effect priming salinity Sulla carnosa toxic effect Botany QK1-989
Acceso en línea:	https://doaj.org/article/a1bcbe7de0ba462ab4f5994a20d5a3e2
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spelling	oai:doaj.org-article:a1bcbe7de0ba462ab4f5994a20d5a3e22021-11-29T07:25:55ZChemical seed priming alleviates salinity stress and improves Sulla carnosa germination in the saline depression of Tunisia2475-445510.1002/pld3.357https://doaj.org/article/a1bcbe7de0ba462ab4f5994a20d5a3e22021-11-01T00:00:00Zhttps://doi.org/10.1002/pld3.357https://doaj.org/toc/2475-4455Abstract In the saline depressions (Sebkhas) of Tunisia, Sulla carnosa expresses anarchic distribution, sometimes in association with halophytes sometimes individually. In order to explain this distribution, we investigated the effects of salinity on seed germination, the osmotic and toxic limiting factors, and the importance of some stimulating agents (priming agents) in the improvement of the tolerance to salinity at the germinating stage. A study was conducted on seeds harvested from the natural biotope Sebkha d'El Kelbia (35°50′34″N, 10°16′18″E), and an increasing concentration of NaCl (0, 5, 10, 15, and 20 g L−1) was applied. Some priming agents were used to propose efficient, rapid, and low‐cost tools to improve the seed germination and tolerance of Sulla carnosa (Desf.) in saline depression. Salinity stress significantly decreased germination capacity and rate and delayed its initiation and maximum. Until 15‐g L−1 NaCl, the most limiting factor of seed germination is the osmotic effect. At 20‐g L−1 NaCl, the toxic effect dominates, and germination is irreversibly inhibited. Some priming agents have shown their efficiency in improving the germination capacity at 10‐g L−1 NaCl and conferring a salt tolerance of up to 15‐g L−1 NaCl.Amal BouzidiAbdelmajid KroumaMohamed ChaiebWileyarticlegerminationosmotic effectprimingsalinitySulla carnosatoxic effectBotanyQK1-989ENPlant Direct, Vol 5, Iss 11, Pp n/a-n/a (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	germination osmotic effect priming salinity Sulla carnosa toxic effect Botany QK1-989
spellingShingle	germination osmotic effect priming salinity Sulla carnosa toxic effect Botany QK1-989 Amal Bouzidi Abdelmajid Krouma Mohamed Chaieb Chemical seed priming alleviates salinity stress and improves Sulla carnosa germination in the saline depression of Tunisia
description	Abstract In the saline depressions (Sebkhas) of Tunisia, Sulla carnosa expresses anarchic distribution, sometimes in association with halophytes sometimes individually. In order to explain this distribution, we investigated the effects of salinity on seed germination, the osmotic and toxic limiting factors, and the importance of some stimulating agents (priming agents) in the improvement of the tolerance to salinity at the germinating stage. A study was conducted on seeds harvested from the natural biotope Sebkha d'El Kelbia (35°50′34″N, 10°16′18″E), and an increasing concentration of NaCl (0, 5, 10, 15, and 20 g L−1) was applied. Some priming agents were used to propose efficient, rapid, and low‐cost tools to improve the seed germination and tolerance of Sulla carnosa (Desf.) in saline depression. Salinity stress significantly decreased germination capacity and rate and delayed its initiation and maximum. Until 15‐g L−1 NaCl, the most limiting factor of seed germination is the osmotic effect. At 20‐g L−1 NaCl, the toxic effect dominates, and germination is irreversibly inhibited. Some priming agents have shown their efficiency in improving the germination capacity at 10‐g L−1 NaCl and conferring a salt tolerance of up to 15‐g L−1 NaCl.
format	article
author	Amal Bouzidi Abdelmajid Krouma Mohamed Chaieb
author_facet	Amal Bouzidi Abdelmajid Krouma Mohamed Chaieb
author_sort	Amal Bouzidi
title	Chemical seed priming alleviates salinity stress and improves Sulla carnosa germination in the saline depression of Tunisia
title_short	Chemical seed priming alleviates salinity stress and improves Sulla carnosa germination in the saline depression of Tunisia
title_full	Chemical seed priming alleviates salinity stress and improves Sulla carnosa germination in the saline depression of Tunisia
title_fullStr	Chemical seed priming alleviates salinity stress and improves Sulla carnosa germination in the saline depression of Tunisia
title_full_unstemmed	Chemical seed priming alleviates salinity stress and improves Sulla carnosa germination in the saline depression of Tunisia
title_sort	chemical seed priming alleviates salinity stress and improves sulla carnosa germination in the saline depression of tunisia
publisher	Wiley
publishDate	2021
url	https://doaj.org/article/a1bcbe7de0ba462ab4f5994a20d5a3e2
work_keys_str_mv	AT amalbouzidi chemicalseedprimingalleviatessalinitystressandimprovessullacarnosagerminationinthesalinedepressionoftunisia AT abdelmajidkrouma chemicalseedprimingalleviatessalinitystressandimprovessullacarnosagerminationinthesalinedepressionoftunisia AT mohamedchaieb chemicalseedprimingalleviatessalinitystressandimprovessullacarnosagerminationinthesalinedepressionoftunisia
_version_	1718407542835511296

Chemical seed priming alleviates salinity stress and improves Sulla carnosa germination in the saline depression of Tunisia

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