Response of African marigold (Tagetes erecta L.) to different concentrations of chlorpyrifos and microbial diversity in root rhizosphere
Journal Title: Journal of Coastal Life Medicine - Year 2017, Vol 5, Issue 4
Abstract
Objective: To assess the response of African marigold (Tagetes erecta L.) to exposed different concentration of chlorpyrifos by evaluating morphology (root and shoot length), biomass (fresh weight and dry weight), photosynthetic pigments (chlorophyll a and b), protein and microbial diversity in root rhizosphere. Methods: The study was carried out in pot culture and treated with various concentrations (0.5%, 1.0%, 2.0%, and 2.5%) as well as control treatments. The morphological, biomass, photosynthetic pigments, protein, and microbial diversity were analyzed on 30, 60, and 90 days. Results: The obtained results revealed that the tested pesticide reduced the growth, biomass and photosynthetic pigment of African marigold when applied at higher concentration than the optimum dosage. But the lower dose the pesticide had some stimulatory effect of analyzed parameters. A similar effect of pesticide was observed on the microbial population of root rhizosphere that is decreased in microbial population was caused at higher doses. But it was increased at lower doses. Conclusions: It can be concluded that pesticide above the certain dosage level adversely affect all the analyzed parameters at higher doses. The application of recommended doses should be discouraged. Further study is needed for the effect of pesticide use on microbial diversity, since these studies are carried out in a controlled pot experiment, including the current study. Thus, future study directed towards by studying the phyoremediation of theses contaminted site with intraction of microbes.
Amino acid quality indices of the leaves of Clerodendrum volubile
Objective: To evaluate the amino acid profile and quality indices of Clerodendrum volubile (C. volubile) leaves. Methods: Dried leaves of C. volubile were blended, defatted and subjected to amino acid analysis using the...
An overview of cercariae from the Egyptian inland water snails
The study on trematode larvae found in Egyptian molluscs was initiated by the pioneering work of Sonsino in 1892 and Looss in 1896. Since then tens of cercariae and some digenean life cycles have been reported in the cou...
First record of Necrobia rufipes (De Geer, 1775) (Coleoptera: Cleridae) from Khuzestan Province, southwest of Iran, a beetle species of forensic importance
Objective: To introduce Necrobia rufipes as a forensic important species in the study area. Methods: This study was performed using a laboratory bred rat (Wistar rat) weighing 352 g as a model for decomposition. The rat...
Dermatophytosis in special patient populations
Objective: To study the occurrence and prevalence of dermatomycosis in special patient populations suffering from diabetes, cancer and heart diseases. Methods: A total of 640 patients suffering from diabetes, 280 patient...
The effect of fosbac on liver and kidney function parameters in broilers
Objective: To investigate the effect of fosbac on some blood biochemical variables in broilers. Methods: Fosbac with the dose of 160 and 320 mg/kg was added to drinking water of poultry for 5 days. For each dose, a separ...