Preliminary Phytochemical Analysis of Alternanthera sessilis Leaves (Linn). R.Br. ex DC.

Alternanthera sessilis (Linn). R. Br. ex DC. is a treasure house of phytochemicals belongs to family Amaranthaceae, popularly known as stalkless joy weed, sessile joy weed, dwarf copperleaf, joy weed, Garundi, Guroo, Kanchari. The ability of its seeds to germinate in any season of the year makes it a constantly flourishing component of the vegetation. The main objective of current investigation was to study the qualitatively preliminary phytochemical analysis of such weed species. The fresh plant leaves of Alternanthera sessilis were screened to understand the phytochemical potential with the use of four extracts such as aqueous, acetone, methanol and ethanol. The outcome of the study indicates that the fresh plant contains different classes of secondary metabolites such as alkaloids, carbohydrates, cardiac-glycosides, flavonoids, phenols, saponins, tannins, terpenoids, quinones, coumarins etc. Phytochemical are certain non-nutritive plant chemicals which have allelopathic properties. These phytochemical constituents play an important role in formulation of pharmaceutical and pharmacological drugs

Shade Avoidance 3 Mediates Crosstalk Between Shade and Nitrogen in Arabidopsis Leaf Development

After nitrogen treatments, plant leaves become narrower and thicker, and the chlorophyll content increases. However, the molecular mechanisms behind these regulations remain unknown. Here, we found that the changes in leaf width and thickness were largely compromised in the shade avoidance 3 (sav3) mutant. The SAV3 gene encodes an amino-transferase in the auxin biosynthesis pathway. Thus, the crosstalk between shade and nitrogen in Arabidopsis leaf development was investigated. Both hypocotyl elongation and leaf expansion promoted by the shade treatment were reduced by the high-N treatment; high-N-induced leaf narrowing and thickening were reduced by the shade treatment; and all of these developmental changes were largely compromised in the sav3 mutant. Shade treatment promoted SAV3 expression, while high-N treatment repressed SAV3 expression, which then increased or decreased auxin accumulation in cotyledons/leaves, respectively. SAV3 also regulates chlorophyll accumulation and nitrogen assimilation and thus may function as a master switch responsive to multiple environmental stimuli.

EFEKTIVITAS ANALGETIK KRIM TIPE M/A EKSTRAK ETANOL DAUN RANDU (Ceibapentandra (L) Gaertn) PADA HEWAN UJI MENCIT JANTAN

Randu plant leaves (Ceiba pentandra (L) Gaertn) are commonly used in traditional medicine, one of which is an analgesic with secondary metabolites which are thought to be analgesics, namely flavonoids. The purpose of this study was to determine the analgesic effectiveness of the ethanol extract cream of randu leaves (Ceiba pentandra (L) Gaertn) in white male mice (Mus musculus). The research on the analgesic effectiveness of the ethanol extract cream of randum leaves used the hot plate method and used male white mice as the experimental animal media. The soles of the hind legs of the mice were heated over hot plated with a temperature of 550C then the test animals were given the treatment which was divided into 5 treatment groups, namely positive control (Conterpain cream), negative control (F0), F1 (10%), F2 (15%), F3 (20%) and 1 normal group. The response of mice was calculated every 30 minutes in 120 minutes. The data obtained were analyzed using the one-way ANOVA statistical test followed by the Duncan test with a confidence level of 99%. The results of the one-way ANOVA test showed that there were significant differences between treatment groups (0.00 <0.05). The results of the Duncan test showed that the group that provided the best analgesic effectiveness was F2 (15%) but not better than Positive Control.

Kireçli Toprakta Börülcenin Fide Gelişimi Üzerine Vermikompost ve Mikoriza Uygulamalarının Etkileri

Organic matter has a positive effect on the uptake of nutrients in the soil. The increase in mycorrhizal activities in the soil causes an increase in the activities in the rhizosphere region. Vermicompost is among the most useful organic fertilizers that can be added to the soil in recent years. Soil microflora is capable of realizing the return of mineral substances. Akkız cowpea variety was used in the study: The experiment was carried out as a viol study with 3 replications according to the randomized blocks trial design. In the study, seedling development was achieved by mixing vermicompost (0, 15, 30 and 45%) with and without mycorrhiza in a soil containing 16% lime into the viols in order to develop seedlings. Sufficient minerals have been applied to the plants for their growth. Seedlings were harvested when they were 40 days old, and seedling measurement parameters and macronutrients in plant leaves were checked. As the amount of vermicompost increased, it caused an increase in the above-ground fresh and dry weights, root fresh and root dry weights of the seedlings. As the organic fertilizer mixture increased, the nitrogen, phosphorus, potassium and magnesium concentrations of the plant leaves increased. The addition of mycorrhiza to the rearing medium has led to different results in the investigated characteristics. Addition of increasing organic fertilizer ratios in the study, Organic fertilizer and bacteria application of cowpea cultivars were effective in increasing the development of plants in calcareous soils.

Bioinspired photo-responsive membrane enhanced with the “light-cleaning” feature for controlled molecule release

Inspired by the stomatal of plant leaves, a photo-responsive membrane was developed to enhance the removal of irreversible membrane fouling and control molecule release. The photo-responsive polymers were prepared by...

Effects of combined treatment of cadmium and oxytetracycline on the terrestrial isopod Porcellio leavis

The influence of pharmaceutical residues and heavy metals on living organisms has received global attention. The present study assessed the interactive effect of antibiotic residues and heavy metals in soil, as contaminated food with cadmium (Cd) and oxytetracycline (OTC) on the isopod Porcellio leavis. It was fed on fresh plant leaves contaminated with different concentrations of cadmium, Cd+OTC1000 ppm, Cd+OTC2000 ppm and Cd+OTC3000 ppm for 4 weeks. The changes in the feeding patterns, protein, lipid peroxidation (LPO), catalase activity (CAT), and total free amino acids (TFAA) were recorded. There were significant differences in the obtained results where Cd reduced the egestion ratio (ER) however, OTC enhanced this ratio. Biochemical analysis illustrated that combination between OTC and Cd inhibits the toxic effects of Cd at low concentration (1000 ppm), while at high concentration (3000 ppm) raise the toxicity. Detailed studies are required for further understanding of the interaction between OTC and heavy metals, and also its impact on soil animals and for improving soil risk evaluation.