BACKGROUND Citrus sinensis juice (CSJ) is a rich source of dietary flavonoids which reduce the risk of adverse cardiovascular events. This study aimed to examine the effects of four-week intake of natural and commercial orange (Citrus sinensis) juice on blood pressure in healthy volunteers. METHODS In this single-blind randomized crossover study, 22 healthy subjects (age: 18-59 years old) wer...

ABSTRACT Strains of Xylella fastidiosa, isolated from sweet orange trees (Citrus sinensis) and coffee trees (Coffea arabica) with symptoms of citrus variegated chlorosis and Requeima do Café, respectively, were indistinguishable based on repetitive extragenic palindromic polymerase chain reaction (PCR) and enterobacterial repetitive intergenic consensus PCR assays. These strains were also indis...

In vitro organogenesis of citrus was studied for the genotypes Citrus sinensis cv. ‘Natal’, C. limonia, C. volkameriana, and C. aurantium, with the use of epicotyl segments-derived explants, cultured in MT salts and vitamins medium supplemented with different concentrations of 6-benzylaminopurine (BAP – 0.0; 0.5; 1.0; 1.5, or 2.0 mg L-1). For the recalcitrant genotypes C. limonia and C. auranti...

The family of aquaporins (AQPs), or major intrinsic proteins (MIPs), includes integral membrane proteins that function as transmembrane channels for water and other small molecules of physiological significance. MIPs are classified into five subfamilies in higher plants, including plasma membrane (PIPs), tonoplast (TIPs), NOD26-like (NIPs), small basic (SIPs) and unclassified X (XIPs) intrinsic...

An in vitro model was used to investigate the potential for different structural forms of endogenous antigen to be processed and presented by major histocompatibility complex class II molecules. For this purpose the class II-restricted presentation of an immunodominant epitope of hen egg lysozyme [HEL-(46-61)] was studied in class II-positive B-lymphoma cells (M12.C3) transfected with genes enc...

Citrus produced in the southwestern United States is often irrigated with perchlorate-contaminated water. This irrigation water includes Colorado River water which is contaminated with perchlorate from a manufacturing plant previously located near the Las Vegas Wash, and ground water from wells in Riverside and San Bernardino counties of California which are affected by a perchlorate plume asso...

The economic and social importance of citrus production in Brazil and the high economic loss caused by citrus variegated chlorosis (CVC) in Brazilian orchards have resulted in an extensive research program involving the sequencing of the genome of Xylella fastidiosa (Xf) subsp. pauca (Xf-pa, strain 9a5c), the causal agent of CVC. Other genomes of Xf-pa are currently being sequenced. Despite the...

Traditionally, Sicilian blood oranges (Citrus sinensis) have been associated with cardiovascular health, and consumption has been shown to prevent obesity in mice fed a high-fat diet. Despite increasing consumer interest in these health-promoting attributes, production of blood oranges remains unreliable due largely to a dependency on cold for full color formation. We show that Sicilian blood o...

In this study peroxidase was isolated from peels of Citrus reticulata var. Kinnow and partially purified using ammonium sulphate precipitation method. Kinetic and thermal characterization of the partially purified enzyme was explored. The optimum pH and temperature were found to be 6 and 55 C respectively. The Km and Vmax values for guaiacol as substrate were found out to be 0.66 mM and 380 μmo...