Por favor, use este identificador para citar o enlazar este ítem: http://cibnor.repositorioinstitucional.mx/jspui/handle/1001/602
Mineral content and biochemical variables of Aloe vera L. under salt stress
BERNARDO MURILLO AMADOR
MIGUEL VICTOR CORDOBA MATSON
JORGE ARNOLDO VILLEGAS ESPINOZA
LUIS GUILLERMO HERNANDEZ MONTIEL
ENRIQUE TROYO DIEGUEZ
JOSE LUIS GARCIA HERNANDEZ
Acceso Abierto
Atribución-NoComercial-SinDerivadas
DOI:10.1371/journal.pone.0094870
URL: http://journals.plos.org/plosone
DOI: 10.1371/journal.pone.0094870
Leaves, Salinity, Plant resistance to abiotic stress, Proline, Sprouts, Osmotic shock, Plant physiology, Plant biochemistry
"Despite the proven economic importance of Aloe vera, studies of saline stress and its effects on the biochemistry and mineral content in tissues of this plant are scarce. The objective of this study was to grow Aloe under NaCl stress of 0, 30, 60, 90 and 120 mM and compare: (1) proline, total protein, and enzyme phosphoenolpyruvate carboxylase (PEP-case) in chlorenchyma and parenchyma tissues, and (2) ion content (Na, K, Ca, Mg, Cl, Fe, P. N, Zn, B, Mn, and Cu) in roots, stems, leaves and sprouts. Proline and PEP-case increased as salinity increased in both parenchyma and chlorenchyma, while total protein increased in parenchyma and decreased in chlorenchyma, although at similar salt concentrations total protein was always higher in chlorenchyma. As salinity increased Na and Cl ions increased in roots, stems, leaves, while K decreased only significantly in sprouts. Salinity increases typically caused mineral content in tissue to decrease, or not change significantly. In roots, as salinity increased Mg decreased, while all other minerals failed to show a specific trend. In stems, the mineral concentrations that changed were Fe and P which increased with salinity while Cu decreased. In leaves, Mg, Mn, N, and B decreased with salinity, while Cu increased. In sprouts, the minerals that decreased with increasing salinity were Mg, Mn, and Cu. Zinc did not exhibit a trend in any of the tissues. The increase in protein, proline and PEP-case activity, as well as the absorption and accumulation of cations under moderate NaCl stress caused osmotic adjustment which kept the plant healthy. These results suggest that Aloe may be a viable crop for soil irrigated with hard water or affected by salinity at least at concentrations used in the present study."
2014
Artículo
Plos One
Inglés
Murillo-Amador B, Córdoba-Matson MV, Villegas-Espinoza JA, Hernández-Montiel LG, Troyo-Diéguez E, et al. (2014) Mineral Content and Biochemical Variables of Aloe vera L. under Salt Stress. PLoS ONE 9(4): e94870. doi:10.1371/journal.pone.0094870
FISIOLOGÍA VEGETAL
Versión publicada
publishedVersion - Versión publicada
Aparece en las colecciones: Artículos

Cargar archivos:


Fichero Tamaño Formato  
murillo_b.PDF224.46 kBAdobe PDFVisualizar/Abrir