Optimización De La Biosorción De Cd (II) Y Pb (II) Usando Endocarpio De Olea Europea En Soluciones Bimetálicas

Author(s):  
Giuliana Vanesa Zea Linares ◽  
Betty Marilia Salazar Pinto ◽  
José Antonio Villanueva Salas ◽  
Elvis Gilmar Gonzales Condori
Keyword(s):  
Viruses ◽  
2021 ◽  
Vol 13 (6) ◽  
pp. 1085
Author(s):  
Ichrak Ben-Amor ◽  
Maria Musarra-Pizzo ◽  
Antonella Smeriglio ◽  
Manuela D’Arrigo ◽  
Rosamaria Pennisi ◽  
...  

Owing to the richness of bioactive compounds, Olea europea leaf extracts exhibit a range of health effects. The present research evaluated the antibacterial and antiviral effect of leaf extracts obtained from Olea europea L. var. sativa (OESA) and Olea europea var. sylvestris (OESY) from Tunisia. LC-DAD-ESI-MS analysis allowed the identification of different compounds that contributed to the observed biological properties. Both OESA and OESY were active against Gram-positive bacteria (MIC values between 7.81 and 15.61 μg/mL and between 15.61 and 31.25 μg/mL against Staphylococcus aureus ATCC 6538 for OESY and OESA, respectively). The antiviral activity against the herpes simplex type 1 (HSV-1) was assessed on Vero cells. The results of cell viability indicated that Olea europea leaf extracts were not toxic to cultured Vero cells. The half maximal cytotoxic concentration (CC50) values for OESA and OESY were 0.2 mg/mL and 0.82 mg/mL, respectively. Furthermore, both a plaque reduction assay and viral entry assay were used to demonstrate the antiviral activity. In conclusion, Olea europea leaf extracts demonstrated a bacteriostatic effect, as well as remarkable antiviral activity, which could provide an alternative treatment against resistant strains.


1999 ◽  
Vol 54 (9-10) ◽  
pp. 688-692 ◽  
Author(s):  
Konstantinos Chartzoulakis ◽  
Angelos Patakas ◽  
Artemis Bosabalidis

The effect of water stress on gas exchange, water relations and leaf anatomical characteristics have been studied in two olive cultivars (Olea europea, L. cv. ‘Koroneiki’ and cv. ‚Mastoidis’). Photosynthetic rate as well as stomatal conductance were decreased in stressed plants. Osmotic potential (π) declined rapidly in stressed plants indicating their ability for osmoregulation. Bulk modulus of elasticity (ε) was significantly higher in stressed compared to well irrigated plants. The volume fraction of intercellular spaces of the upper palisade parenchyma, the spongy parenchyma as well as the lower palisade parenchyma were significantly lower in stressed compared to well irrigated plants. On the other hand, the density of mesophyll cells in the upper palisade parenchyma, spongy parenchyma and lower palisade parenchyma increased significantly in stressed plants


Author(s):  

Abstract A new distribution map is provided for Spilocaea oleaginea (Cast.) Hughes. Hosts: Olive (Olea europea). Information is given on the geographical distribution in Africa, Algeria, Egypt, Ethiopia, Libya, Morocco, North Africa, Somalia, South Africa, Tunisia, Asia, China, Iran, Israel, Jordan, Turkey, USSR, Georgia, Australasia & Oceania, Australia, New South Wales, Europe, Cyprus, France, Greece, Italy, Crete, Sicily, Malta, Portugal, Spain, Yugoslavia, North America, USA, California, South America, Argentina, Chile, Ecuador, Peru.


1977 ◽  
Vol 28 (3) ◽  
pp. 619-628 ◽  
Author(s):  
EPHRAIM EPSTEIN ◽  
SHIMON LAVEE
Keyword(s):  

1983 ◽  
Vol 13 (5) ◽  
pp. 473-478 ◽  
Author(s):  
M. BLANCA ◽  
P. BOULTON ◽  
J. BROSTOFF ◽  
I. GONZALEZ-REGUERA
Keyword(s):  

2017 ◽  
Vol 4 (12) ◽  
pp. 499
Author(s):  
Carmen Rocío Rodríguez-Pleguezuelo ◽  
José Ramón Francia-Martínez ◽  
Dionisio Franco-Mora ◽  
Víctor Hugo Durán-Suazo

En la costa de Granada, sureste de España, se encuentra una zona de frutales subtropicales en laderas, distribuidos en terrazas. Se evaluaron tasas de descomposición y liberación de nitrógeno (N) de hojarasca, en dos ecosistemas: (1) ecosistema de ladera inalterado (ELI) sin cultivo agrícola, con cubierta de vegetación autóctona, y (2) ecosistema de ladera alterado (ELA) con frutales de mango (Mangifera indica L.), aguacate (Persea americana Mill.), chirimoyo (Annona cherimolia Mill.), níspero (Eriobotrya japonica (Thunb.) Lindl.), y cubiertas de plantas aromáticas y medicinales (PAM) en los taludes de las terrazas. En ELA la tasa de descomposición de hojarasca de chirimoyo fue la más alta, y entre las PAM la alhucema rizada (Lavandula dentata L.), así como la mejorana (Thymus mastichina L.), alhucema rizada (Lavandula dentata L.) y ajedrea (Satureja obovata Lag.) registraron altas tasas de liberación de N. En ELI acebuche (Olea europea L.) y bolina (Genista umbellata (L'Hér.) Dum., tuvieron bajas tasas de descomposición. Las PAM en ELA pueden contribuir a restablecer los ciclos naturales de reciclado de nutrientes, minimizando los efectos del cambio de uso del suelo. 


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