This study investigated the degradation characteristics and conducted a risk assessment of four pesticides (Diniconazole, Dinotefuran, Metconazole, Tebuconazole) in leaves roots radish. Radish was cultivated two greenhouse fields, samples were collected at 0, 1, 2, 3, 5, 7, 10 days after pesticide application. Sample analysis performed using LC-MS/MS, recovery rates ranged from 70.1% to 118.6%....

Tomato torrado virus (ToTV), which is a tomato-infecting member of the genus Torradovirus, induces severe systemic necrosis in Solanum lycopersicum cv. Beta Lux as well as leaf malformation and chlorosis in Nicotiana benthamiana. To date, neither the tomato gene conferring resistance to the pathogen nor the ToTV-encoded necrosis determinant have been characterized. We herein revealed that the p...

The effects of Bt corn (Zea mays L.) residue on soil microbial communities and rates of C mineralization were investigated. The Bt corn residue had a higher lignin content (12%) and lignin/N (9.9) ratio compared with its non-Bt near-isoline (10% lignin; lignin/N = 8.6). We examined the relationships among the Bt/non-Bt residue properties, residue component, soil texture, sampling time, and till...

Evidence from mass, nuclear-magnetic-resonance and infrared spectrometry and from gas-liquid and thin-layer chromatography is presented in favour of the presence of cis-trans-decaprenol, -undecaprenol and -dodecaprenol in the mixture of polyprenols (2.6mg./g.) isolated from leaf tissue of Ficus elastica. The trivial names ficaprenol-10, -11 and -12 are proposed. Nuclear-magnetic-resonance studi...

Soil nutrient imbalance is a global threat to food security and ecosystem sustainability but adding organic residues or constructing anthropogenic soils technosols can optimize it. However, FAO considers not “risk-free”, mainly due their heavy metal content. Despite the fact that applying pruning soil worldwide fertilization practice, its potential risk has been poorly studied. This work charac...

Abstract Chlorpyrifos is an organophosphate insecticide. It has low aqueous solubility, volatile and non-mobile, moderately persistent in soil, highly toxic to mammals, acetylcholinesterase inhibitor. The main use of chlorpyrifos control various types agricultural pests. This study aims determine the absorption residues maize plants. was conducted July-December 2019. Experimental research at Ja...

Among the biologically active triterpenes, friedelin has the most-rearranged structure produced by the oxidosqualene cyclases and is the only one containing a cetonic group. In this study, we cloned and functionally characterized friedelin synthase and one cycloartenol synthase from Maytenus ilicifolia (Celastraceae). The complete coding sequences of these 2 genes were cloned from leaf mRNA, an...

Tobacco expresses four isomers of assimilatory nitrite reductase (aNiR), leaf-type (Nii1 and Nii3) and root-type (Nii2 and Nii4). The high resolution crystal structures of Nii3 and Nii4, determined at 1.25 and 2.3 Å resolutions respectively, revealed that both proteins had very similar structures. Although these structures are almost identical to spinach aNiR that were previously obtained at 2....

Given an arbitrary n, we consider anisotropic quadratic forms of dimension n over all fields of characteristic = 2 and prove that the height of an n-dimensional excellent form (depending on n only) is the (precise) lower bound of the heights of all forms of dimension n.