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Publication Type J
Authors Chalbi, A., B. Sghaier-Hammami, N. Baazaoui, S. B. M. Hammami, H. Ben-Jouira, P. Garcia-Caparros, N. Djebali, I. Regaya, A. Debez, J. V. Jorrin-Novo and C. Abdelly
Title Comparative study of the effect of salt stress, Alternaria alternara attack or combined stress on the Cakile maritima growth and physiological performance
Source Notulae Botanicae Horti Agrobotanici Cluj-Napoca
Language English
Author Keywords Alternaria alternata Cakile maritima combined stress fungal attack alleviation salt stress sesuvium-portulacastrum salinity tolerance halophyte efficiency photosynthesis temperature infection cadmium drought toxins Plant Sciences
Abstract Cakile maritima is a halophytic plant model that is well known by its ability to tolerate high salt concentrations. Salinity was reported to improve the tolerance of halophytes to several abiotic stresses; however, the involvement of salt in the tolerance to biotic stress is still scant. In the present work, the effect of salt on C. maritima responses towards the pathogenic Alternaria alternara was investigated. For that, C. maritima seeds were germinated for four weeks. Plants were then divided into four groups: i) Plants irrigated with salt (200mM NaCI); u) Plants infested by fungus; iii) Plants irrigated with salt and infested by fungus and finally control plants (OmM NaCl, without inoculation). Our results showed that upon salt stress or fungal attack, plants reduced biomass production, hydration status and photosynthetic performance which were associated with a decrease in the gas exchange and chlorophyll fluorescence parameters, with a more pronounced effect upon fungal attack. However, under combined stress, a significant increase of these parameters was noticed, with a level close to that of control. Concerning nutrient contents, K, Zn, Fe, Cu and Mg decreased in the C. maritima leaves exposed to both stresses applied individually. In contrast, all these nutrients were increased in plants grown under combined stress. Taken together, we can conclude that plants grown under combined stresses had better growth rate and physiological performance compared to all other treated plants, and that salt may be the key in improving the C. maritima ability to tolerate fungal attack.
Author Address [Chalbi, Arbia; Sghaier-Hammami, Besma; Ben-Jouira, Hatem; Regaya, Imed; Debez, Ahmed; Abdelly, Chedly] Ctr Biotechnol Borj Cedria CBBC, Lab Extremophile Plants, POB 901, Hammam Lif 2050, Tunisia. [Chalbi, Arbia] Univ Tunis El Manar, Fac Sci Tunis, Univ Campus 2092, Tunis, Tunisia. [Sghaier-Hammami, Besma; Hammami, Sofiene B. M.] Univ Carthage, Inst Natl Agron Tunisie, Lab LR13AGR01, Tunis, Tunisia. [Sghaier-Hammami, Besma; Jorrin-Novo, Jesus, V] Univ Cordoba CeiA3, Dept Biochem & Mol Biol, Agroforestry & Plant Biochem & Prore Res Grp, Cordoba, Spain. [Baazaoui, Narjes] King Khalid Univ, Abha 61421, Saudi Arabia. [Garcia-Caparros, Pedro] Univ Almeria, Dept Super Sch Engn, Ctra Sacramento S-N, Almeria 04120, Spain. [Djebali, Naceur] Ctr Biotechnol Borj Cedria CBBC, Lab Bioact Subst, POB 901, Hammam Lif 2050, Tunisia. [Regaya, Imed] Univ Carthage, Higher Inst Environm Sci & Technol, Borj Cedria, Tunisia. Sghaier-Hammami, B (corresponding author), Ctr Biotechnol Borj Cedria CBBC, Lab Extremophile Plants, POB 901, Hammam Lif 2050, Tunisia.; Sghaier-Hammami, B (corresponding author), Univ Carthage, Inst Natl Agron Tunisie, Lab LR13AGR01, Tunis, Tunisia.; Sghaier-Hammami, B (corresponding author), Univ Cordoba CeiA3, Dept Biochem & Mol Biol, Agroforestry & Plant Biochem & Prore Res Grp, Cordoba, Spain. chalbiarbia@gmail.com; besma.sghaierhammami@cbbc.rnrt.tn; baazaouinarjes@gmail.com; sofiene.hammaml@mat.u-carthage.tn; hatembj@gmail.com; pedrogar123@hotmail.com; dnaceur2014@gmail.com; imedregaya@yahoo.fr; ahmed.debez@gmail.com; bf1jonoj@uco.es; abdelly.chedly@gmail.com
ISSN 0255-965X
ISBN 0255-965X
29-Character Source Abbreviation Not. Bot. Horti Agrobot. Cluj-Na.
Year Published 2021
Volume 49
Issue 3
Beginning Page 16
Digital Object Identifier (DOI) 10.15835/nbha49312446
Unique Article Identifier WOS:000702761200005

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