A new tobamovirus species has been recently isolated from hibiscus (Hibiscus rosa-sinensis) in Florida (1). This Florida hibiscus virus has been given the name Hibiscus latent Fort Pierce virus (HLFPV) to reflect the site (Fort Pierce, FL) and host (hibiscus) from which it was originally isolated. A limited survey has revealed that this virus is widespread in hibiscus and related species in the...

Hibiscus protocatechuic acid (PCA), a phenolic compound isolated from the dried flower of Hibiscus sabdariffa L. (Malvaceae), demonstrated antioxidant and antitumor promotion effects in our previous study. In the present study, Hibiscus PCA was found to inhibit the survival of human promyelocytic leukemia HL-60 cells in a concentration- and time-dependent manner. The study revealed that HL-60 c...

This study examined the effects of the supplementation of China rose powder of Hibiscus rosasiensis towards blue gourami with different stocking densities.China rose (1.5%) was used on two different stocking densities (20 and 30 fishes per aquarium). The group that contain a total of 20 (individual/aquarium) and 30 (individual/aquarium) densities of fishes, are referred as CH1 and CH2 respectiv...

The 3' untranslated region (UTR) of turnip crinkle virus (TCV) RNA is 253 nt long (nt 3798-4050) with a 27 nt hairpin structure near its 3' terminus. In this study, the roles of the 3' UTR in virus accumulation were investigated in protoplasts of Hibiscus cannabinus L. and Arabidopsis thaliana (L.) Heynh. Our results showed that, in Hibiscus protoplasts, the minimal 3' UTR essential for TCV acc...

Hibiscus rosa-sinensis is a valuable ornamental species widely planted in Brazil. Many plants are affected by witches' broom disease, which is characterized by excessive axillary branching, abnormally small leaves, and deformed flowers, symptoms that are characteristic of diseases attributed to phytoplasmas. A phytoplasma was detected in diseased Hibiscus by amplification of rRNA operon sequenc...

Hibiscus taiwanensis (Malvaceae) is widely used as an alternative herb to treat disorders in Taiwan. In the present study, it is used to screen the effect on diabetic hyperglycemia in streptozotocin-induced diabetic rats (STZ-diabetic rats). The extract of Hibiscus taiwanensis showed a significant plasma glucose-lowering action in STZ-diabetic rats. Stems of Hibiscus taiwanensis are more effect...

We have initiated immunological and drug-binding studies on the tubulins from different higher plant species. Antibodies were raised against electrophoretically separated rose (Rosa sp.) tubulin alpha- and beta-subunits and characterized by immunoblot autoradiographic assays. Each IgG preparation bound to its antigen and cross-reacted differentially with the respective tubulin subunits from an ...

Hibiscus rosasinensis is a medicinal plant species which grows in moist soil favorable for the growth of Aspergillus niger (fungus) too. But extract of Hibiscus rosasinensis does n’t shows inhibition zone against Aspergillus niger in PDA (Potato Dextrose Agar) media in microbiological evaluation. In other hand, the Allium fistulosum root extract having antifungal activity shows moderate zone of...

Objective: The antiulcer activity of various extracts of Hibiscus rosa sinensis leaves was evaluated in pyloric ligation induced gastric ulcer in albino rats. Method: The leaves extracts were prepared by cold maceration process with petroleum ether, alcohol and water separately. Results: Oral administration of aqueous and alcohol extracts (200 and 400 mg/kg) of Hibiscus rosa sinensis leaves wer...

In vitro studies show Hibiscus sabdariffa L., an ingredient found in many herbal tea blends and other beverages, has antioxidant properties, and, in animal models, extracts of its calyces have demonstrated hypocholesterolemic and antihypertensive properties. Our objective in this study was to examine the antihypertensive effects ofH. sabdariffa tisane (hibiscus tea) consumption in humans. A ran...