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| GONZÁLEZ-MENDOZA,DANIEL; TRONCOSO-ROJAS,ROSALBA; GONZALEZ-SOTO,TANIA; GRIMALDO-JUAREZ,ONECIMO; CECEÑA-DURAN,CARLOS; DURAN-HERNANDEZ,DAGOBERTO; GUTIERREZ-MICELI,FEDERICO. |
| ABSTRACT The aim of the present work is to evaluate the changes on the phenylalanine ammonia lyase (PAL) activity, phenolic compounds accumulation and photochemical efficiency in leaves of P. glandulosa treated with Cd2+ (0.001 M) and Cu2+ (0.52 M) concentrations for 96 h under hydroponic conditions. The results showed that only leaves treated with copper had a decrease in photochemical efficiency and leaf epidermal polyphenols in P. glandulosa leaves after 96 h of exposure. On the other hand the reverse-phase HPLC analysis revealed higher levels of phenolic compound (gallic, vanillic and caffeic acids) and flavonoids (rutin and kaempferol-3-O-glucosides) in plant leaves from Cu and Cd-treatments with respect to control plants. Finally, highest increments... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Heavy metals; Prosopis glandulosa; Flavonoids; Chlorophyll a fluorescence. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652018000401465 |
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| Alanís-Rodríguez,Eduardo; Molina-Guerra,Víctor M.; Jiménez-Pérez,Javier; Rubio-Camacho,Ernesto A.; Mora-Olivo,Arturo; Collantes-Chávez-Costa,Alejandro; Marroquín-Castillo,Jonathan J.. |
| Abstract Background: Although the mesquite (mesquital or mezquital in Spanish) is one of the representative ecosystems of the landscapes in the north of Mexico, it is also one of the least studied. This study evaluated the structure (horizontal and vertical) and diversity of a plant community of mesquite in Northeastern Mexico. Three plots of 1,600 m2 each were established. All trees and shrubs with a basal diameter (d0.10) ≥ 0.5 cm were recorded, and total height (h) and crown diameter (dcrown) were measured. Results: There were 8 families, 12 genera and 14 species. The genus presenting the most species was Acacia (three species). The most representative family was Fabaceae with seven species. The evaluated community presents a density of 375... |
| Tipo: Journal article |
Palavras-chave: Importance value index; Margalef diversity index; Mesquital; Plant community; Prosopis glandulosa; Shannon index. |
| Ano: 2017 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2017000100201 |
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