Changes in growth, physiological parameters and the hormonal status of Myrtus communis L. plants irrigated with water with different chemical compositions

Copyright © 2015. Published by Elsevier GmbH.

Bibliographische Detailangaben
Veröffentlicht in:Journal of plant physiology. - 1979. - 191(2016) vom: 01. Feb., Seite 12-21
1. Verfasser: Acosta-Motos, José Ramón (VerfasserIn)
Weitere Verfasser: Ortuño, María Fernanda, Álvarez, Sara, López-Climent, María Fernanda, Gómez-Cadenas, Aurelio, Sánchez-Blanco, María Jesús
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2016
Zugriff auf das übergeordnete Werk:Journal of plant physiology
Schlagworte:Journal Article Research Support, Non-U.S. Gov't Hormonal profile Mineral content Ornamental plants Reclaimed water Salinity Water relations Gases Ions mehr... Minerals Plant Growth Regulators Water 059QF0KO0R
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520 |a Myrtus communis, an important Mediterranean ornamental shrub, was used to study the effect of irrigation water with different chemical compositions in the plant response. A treatment with NaCl was used to establish the plant resistance to high salinity at long term. Plants were subjected to four irrigation treatments with drainage for three months: Control (0.8 dS m(-1)); two treatments using reclaimed water (RWs): RW1 (2.0 dS m(-1)) and RW2 (5.0 dS m(-1)); and NaCl (10.0 dS m(-1)). High levels of electric conductivity of RWs not affected plant growth, while NaCl decreased leaf dry weight. Coinciding with the accumulation of Na(+) and Cl(-) in the roots, soil water potential decreased, which hinders the mobilization of water to the leaves, decreasing leaf water potential. The osmotic adjustment in the NaCl treatment was due to Na(+) and Cl(-) ions, although the proline could contribute as an Osmo compatible solute, increasing the turgor plants. Also changes in cell walls rigidity minimize the negative effects on the water balance; however, a higher lipid peroxidation was observed in these plants. Stomatal closure was associated with a decrease in K(+) and an increase in abscisic acid. NaCl produced an increase in salicylic acid and did not affect jasmonic acid contents at the end of the experiment. Similar behavior in soil and leaf water potentials, although less pronounced than in NaCl, was shown in RW2 plants. The abscisic acid increased in the RW2 with respect to the control and a decrease in stomatal conductance was observed at the end of the experiment. Plants irrigated with RW1 behaved similarly to the control 
650 4 |a Journal Article 
650 4 |a Research Support, Non-U.S. Gov't 
650 4 |a Hormonal profile 
650 4 |a Mineral content 
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650 4 |a Reclaimed water 
650 4 |a Salinity 
650 4 |a Water relations 
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700 1 |a Ortuño, María Fernanda  |e verfasserin  |4 aut 
700 1 |a Álvarez, Sara  |e verfasserin  |4 aut 
700 1 |a López-Climent, María Fernanda  |e verfasserin  |4 aut 
700 1 |a Gómez-Cadenas, Aurelio  |e verfasserin  |4 aut 
700 1 |a Sánchez-Blanco, María Jesús  |e verfasserin  |4 aut 
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