Since folk medicine has been greatly appreciated for centuries, many researchers decided to study more deeply the curative qualities of plants. In the present study, meristematic cells of Allium cepa L. were used as vegetal test system and bone marrow cells of Wistar rats as animal test system. Both were treated in vivo to evaluate whether the plants Averrhoa carambola L., Syzygium cumini (L.) ...

Garbage is often a problem for people's lives, but if you apply the 3R system it can minimize buildup, from system, implemented, will produce product. Examples of products that be produced are sunscreen cosmetic or Sun Protect Factor (SPF). The negative impact sunlight affect damage to skin's epidermis UV-A and UV-B rays, where these effects overcome by giving Protection basic ingredients (SPF)...

Diabetes mellitus is a metabolic disorder that results in hyperglycemia due to decreased insulin production or inefficient insulin utilization. This disease has been reported in animals, particularly in aged dogs. However, the disorder is much more prevalent in humans. Millions of people across the globe currently have diabetes and incidence rates are predicted to increase dramatically as the p...

Cytogenetic effects of different herbicides viz. Atrazine, Avenoxan, Diuron and Quizalofop-P-ethyl (QPE), were evaluated in the root tip meristem cells of Allium cepa. In the Allium root growth test, the effective concentration (EC50) value was determined as approximately 0.5 ppm in the case of Atrazine and Avenoxan and 1.0 ppm in the case of Diuron and QPE herbicides with a control for each co...

In this study, the onion (Allium cepa) root test was used to evaluate the genotoxicity of the Pitimbu River (Natal city, Brazil) surface water. The water was collected at five sampling sites along the river and one sample was obtained after the treatment (flocculation, chlorination and pH correction) of the river water for human consumption. All raw river water samples increased the frequency o...

Onion thrips, Thrips tabaci Lindeman (Thysanoptera: Thripidae), is a worldwide pest of onion, Allium cepa L. In field studies on onion resistance conducted in 2007 and 2008 using 49 cultivars, 11 showed low leaf damage by T. tabaci. In laboratory studies, the 11 cultivars, along with two susceptible checks and four additional cultivars, were evaluated to characterize resistance to T. tabaci and...

The aqueous extract of flowers of I. coccinea was evaluated for its cytotoxic and mutagenic effects on the meristematic cells of onion root tip. The percentage of abnormalities was found to increase with the increase in the concentration of the extract from 20 to 60 mg/ml. With 80 mg/ml completed arrest or total inhibition of cell division was observed. The major abnormalities were unprinted ch...

Interphase nucleoli from Vicia faba and Allium cepa meristematic cells are roughly classified into two categories: (a) those that commonly show a rather homogeneous texture (except for small light spaces of various sizes) and frequently contain dense particles 140 A in diameter; (b) those found more frequently in Vicia characterized by a very sharp boundary between a dense outer cortex and a mu...

In the present study, leachate toxicity of a municipal solid waste landfill located in the Sinos River Valley region (southern Brazil) was evaluated using plant bioassays. Leachate toxicity was assessed by analysis of seed germination and root elongation of lettuce (Lactuca sativa L.) and rocket plant Eruca sativa Mill.) and root elongation of onions Allium cepa L.). Bioassays were performed by...