The effect of environmental stressors on the anticancer potential of aqueous extracts and fractions.

Some species have been shown to have pharmacological properties such as activity against cancer, and it is also used as a traditional herbal medicine in many rural parts of the world. The (3-(4,5-dimethylthiazol-2-Yl)-2,5-diphenyltetrazolium bromide assay was used as a screening tool to determine the approximate cell viability inhibitory concentrations of methanol and aqueous crude extracts of spp. The extracts were screened using small-cell lung cancer (H69V), hepatocellular carcinoma (HepG2/C3A) and non-cancerous kidney cells (Vero) cell lines.

The interactive effects of drought and heat stress on photosynthetic efficiency and biochemical defense mechanisms of species.

Drought and heat stress are major abiotic stress factors that limit photosynthesis and other related metabolic processes that hamper plant growth and productivity. Identifying plants that can tolerate abiotic stress conditions is essential for sustainable agriculture. plants can tolerate adverse weather conditions, especially drought and heat, and their leaves and grain are highly nutritious.

Influence of Drought and Heat Stress on Mineral Content, Antioxidant Activity and Bioactive Compound Accumulation in Four African Species.

Drought and heat stress is known to influence the accumulation of mineral content, antioxidant activity, phenolics, flavonoids and other bioactive compounds in many tolerant leafy vegetables. plants can tolerate adverse weather conditions, especially drought and heat. Therefore, evaluating the influence of drought and heat stress on commercially and medically important crop species like is important to grow the crop for optimal nutritional and medicinal properties.

Photosynthetic Responses of Canola and Wheat to Elevated Levels of CO, O and Water Deficit in Open-Top Chambers.

The effects of elevated CO (700 ppm) and O (80 ppb) alone and in combination on the photosynthetic efficiency of canola and wheat plants were investigated in open-top chambers (OTCs). The plants were fumigated for four weeks under well-watered and water-stressed (water deficit) conditions. The fast chlorophyll fluorescence transients were measured after 2 and 4 weeks of fumigation, as well as in control plants, and analyzed by the JIP-test, which is a non-destructive, non-invasive, informative, very fast and inexpensive technique used to evaluate the changes in photosynthetic efficiency.

Inhibition of xanthine oxidase activity results in the inhibition of Russian wheat aphid-induced defense enzymes.

The role of xanthine oxidase (XO) in the defense response of wheat (Triticum aestivum L.) against the Russian wheat aphid (RWA) (Diuraphis noxia) was studied. Xanthine oxidase catalyzes the oxidation of hypoxanthine to xanthine to uric acid, and oxygen radicals that are formed as a by-product at both of these oxidation steps may participate in plant defense reactions.