Moderate salt stress on the physiological and morphological traits of <em>Aloe vera</em> L.
Aloe vera L. is a perennial liliaceous plant with succulent green leaves, it is a xerophyte with economic and social value, but little is known about its response to salt stress and its mechanisms of tolerance, especially at moderate concentrations. The objective was to investigate the effect of sal...
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| Format: | Article |
| Language: | English |
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Sociedad Botánica de México, A. C.
2015-09-01
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| Series: | Botanical Sciences |
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| Online Access: | https://www.botanicalsciences.com.mx/index.php/botanicalSciences/article/view/73 |
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| author | Bernardo Murillo-Amador Alejandra Nieto-Garibay Enrique Troyo-Diéguez José Luis García-Hernández Luis Hernández-Montiel Ricardo David Valdez-Cepeda |
| author_facet | Bernardo Murillo-Amador Alejandra Nieto-Garibay Enrique Troyo-Diéguez José Luis García-Hernández Luis Hernández-Montiel Ricardo David Valdez-Cepeda |
| author_sort | Bernardo Murillo-Amador |
| collection | DOAJ |
| description | Aloe vera L. is a perennial liliaceous plant with succulent green leaves, it is a xerophyte with economic and social value, but little is known about its response to salt stress and its mechanisms of tolerance, especially at moderate concentrations. The objective was to investigate the effect of salinity stress (0, 30, 60, 90 and 120 mM NaCl) on Aloe by measuring physiological and morphometric traits related to growth. The results of measuring physiological traits showed no significant differences compared to the control at 30 and 60 mM (chlorophylls a, b, total, relative water content, net assimilation rate, specific leaf weight, and specific leaf area), even at 90 mM or 120 mM most parameter variations were not significantly different. Similarly, for morphological traits no significant differences were found compared to the control for all 16 morphological traits at 30 mM, or even at 60 mM since at this concentration only one trait varied significantly (1 out of 16). Although the general trend of increasing NaCl was to lower leaf fresh weight as salinity increased, presumably due to a decrease in water content. However leaf dry weight was not significantly reduced at any of the salinity concentrations applied. Thus, total dry leaf biomass was basically the same or similar, this suggesting that Aloe has an ability to withstand these levels of salinity stress. It is noteworthy to point out, that there is a general trend of lower growth (lower parameters both physiological and morphological) that is not significant at low doses (30 and 60 mM), however becoming more significant at higher doses (90 and 120 mM). Thus, we suggest that Aloe has continuum responses to NaCl stress.
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| first_indexed | 2024-04-13T09:04:00Z |
| format | Article |
| id | doaj.art-27f9afed23be49ca9ca80c79a79cbb60 |
| institution | Directory Open Access Journal |
| issn | 2007-4298 2007-4476 |
| language | English |
| last_indexed | 2024-04-13T09:04:00Z |
| publishDate | 2015-09-01 |
| publisher | Sociedad Botánica de México, A. C. |
| record_format | Article |
| series | Botanical Sciences |
| spelling | doaj.art-27f9afed23be49ca9ca80c79a79cbb602022-12-22T02:53:02ZengSociedad Botánica de México, A. C.Botanical Sciences2007-42982007-44762015-09-0193310.17129/botsci.73Moderate salt stress on the physiological and morphological traits of <em>Aloe vera</em> L.Bernardo Murillo-Amador0Alejandra Nieto-Garibay1Enrique Troyo-Diéguez2José Luis García-Hernández3Luis Hernández-Montiel4Ricardo David Valdez-Cepeda5Centro de Investigaciones Biológicas del Noroeste, S.C. La Paz, Baja California Sur, MéxicoCentro de Investigaciones Biológicas del Noroeste, S.C. La Paz, Baja California Sur, MéxicoCentro de Investigaciones Biológicas del Noroeste, S.C. La Paz, Baja California Sur, MéxicoUniversidad Juárez del Estado de Durango, MéxicoCentro de Investigaciones Biológicas del Noroeste, S.C. La Paz, Baja California Sur, MéxicoUniversidad Autónoma Chapingo, Zacatecas, MéxicoAloe vera L. is a perennial liliaceous plant with succulent green leaves, it is a xerophyte with economic and social value, but little is known about its response to salt stress and its mechanisms of tolerance, especially at moderate concentrations. The objective was to investigate the effect of salinity stress (0, 30, 60, 90 and 120 mM NaCl) on Aloe by measuring physiological and morphometric traits related to growth. The results of measuring physiological traits showed no significant differences compared to the control at 30 and 60 mM (chlorophylls a, b, total, relative water content, net assimilation rate, specific leaf weight, and specific leaf area), even at 90 mM or 120 mM most parameter variations were not significantly different. Similarly, for morphological traits no significant differences were found compared to the control for all 16 morphological traits at 30 mM, or even at 60 mM since at this concentration only one trait varied significantly (1 out of 16). Although the general trend of increasing NaCl was to lower leaf fresh weight as salinity increased, presumably due to a decrease in water content. However leaf dry weight was not significantly reduced at any of the salinity concentrations applied. Thus, total dry leaf biomass was basically the same or similar, this suggesting that Aloe has an ability to withstand these levels of salinity stress. It is noteworthy to point out, that there is a general trend of lower growth (lower parameters both physiological and morphological) that is not significant at low doses (30 and 60 mM), however becoming more significant at higher doses (90 and 120 mM). Thus, we suggest that Aloe has continuum responses to NaCl stress. https://www.botanicalsciences.com.mx/index.php/botanicalSciences/article/view/73biomassgrowth analysisNaCl salinitysalt tolerance |
| spellingShingle | Bernardo Murillo-Amador Alejandra Nieto-Garibay Enrique Troyo-Diéguez José Luis García-Hernández Luis Hernández-Montiel Ricardo David Valdez-Cepeda Moderate salt stress on the physiological and morphological traits of <em>Aloe vera</em> L. Botanical Sciences biomass growth analysis NaCl salinity salt tolerance |
| title | Moderate salt stress on the physiological and morphological traits of <em>Aloe vera</em> L. |
| title_full | Moderate salt stress on the physiological and morphological traits of <em>Aloe vera</em> L. |
| title_fullStr | Moderate salt stress on the physiological and morphological traits of <em>Aloe vera</em> L. |
| title_full_unstemmed | Moderate salt stress on the physiological and morphological traits of <em>Aloe vera</em> L. |
| title_short | Moderate salt stress on the physiological and morphological traits of <em>Aloe vera</em> L. |
| title_sort | moderate salt stress on the physiological and morphological traits of em aloe vera em l |
| topic | biomass growth analysis NaCl salinity salt tolerance |
| url | https://www.botanicalsciences.com.mx/index.php/botanicalSciences/article/view/73 |
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