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61.
62.
Asif Ameen Xiaolin Yang Feng Chen Chaochen Tang Fu Du Shah Fahad Guang Hui Xie 《Bioenergy Research》2017,10(2):363-376
Energy sorghum tolerates adverse climatic and edaphic conditions and has great potential as biofuel feedstock in marginal land. This study investigates the potential energy sorghum biomass production and uptake of nitrogen (N), phosphorus (P), and potassium (K) on a sandy loam marginal land in a semi-arid region, in order to define optimum N fertilizer rate to produce the highest biomass yield with minimal nutrient elimination. Five N rate treatments (0, 60, 120, 180, and 240 kg ha?1) and two sorghum varieties (sweet type Guotian-8 (GT-8) and biomass type Guoneng-11 (GN-11)) were used. Yield increment was observed as N level increased, but the standout treatment appeared to be N rate of 60 kg ha?1 which significantly increased biomass yield vs. controls by 68.8% in 2014 and 64.1% in 2015. Biomass yield exhibited non-significant differences between N rate treatments from 60 to 240 kg ha?1, although the highest biomass yield (9.2–11.9 t ha?1) was observed in the 120 kg N ha?1 treatment. Nutrient analysis showed that N, P, and K accumulation in aboveground plants increased with N rate increase, ranging between 32.2 and 119.1, 7.9 and 19.2, and 22.1 and 94.0 kg ha?1, respectively, for the highest N rate of 240 kg ha?1. Substantial amounts of N were extracted from the soil in control and 60 kg N ha?1 treatments, despite the low fertility and organic matter content of the soil. Moreover, nitrogen (N) use efficiency (NUE) was maximized at lower N rates. A decline in physiological N use efficiency (PNUE) resulted in decreased agronomic N use efficiency (ANUE) at higher N rates. Hence, it is concluded that N fertilizer rate between 60 and 120 kg ha?1 would be the optimal N requirement to facilitate sustainable production of energy sorghum on a sandy wasteland. 相似文献
63.
Wani SA Ahmad F Zargar SA Dar ZA Dar PA Tak H Fomda BA 《The Journal of parasitology》2008,94(3):591-593
Soil-transmitted helminths (STHs) remain a major threat to the health of children throughout the world, mostly in developing nations. The aim of the present study was to determine any relationship between STHs and hemoglobin status in school children of Kashmir Valley (India). Stool and blood samples were collected from 382 male and female school children in the age group of 5-15 yr from all 6 school districts of the Kashmir Valley. Finger-prick blood samples were used to collect the hemoglobin, which was then measured on-site by Sahli's acid hematin method; stool samples were processed using both simple smear and zinc sulphate concentration methods. Of the 382 children surveyed, 299 (78.27%) were infected with Ascaris lumbricoides, Trichuris trichiura, or both. Children infected by STHs were found to have lower mean values of hemoglobin than uninfected children. The present study reveals that STHs are abundant among school children of Kashmir Valley, creating a negative effect on the hemoglobin values and indicating the necessity of implementing control measures. 相似文献
64.
Ilyas S Chi R Bhatti HN Bhatti IA Ghauri MA 《Bioprocess and biosystems engineering》2012,35(3):433-440
Present work describes the bioleaching potential of metals from low-grade mining ore containing smithsonite, sphaerocobaltite,
azurite and talc as main gangue minerals with adapted consortium of Sulfobacillus thermosulfidooxidans strain-RDB and Thermoplasma acidophilum. Bioleaching potential improved markedly by added energy source, acid preleaching and adaptation of microbial consortium
with mixed metal ions. During whole leaching period including acid preleaching stage of 960 h and bioleaching stage of 212 days
about 76% Co, 70% Zn, 84% Cu, 72% Ni and 63% Fe leached out. 相似文献
65.
A pig kidney cDNA library was screened for the porcine ortholog of the multispecific organic anion transporter 1 (pOAT1). Several positive clones were isolated resulting in two alternatively spliced cDNA clones of pOAT1 (pOAT1 and pOAT1A). pOAT1-cDNAs consist of 2126 or 1895 base pairs (EMBL Acc. No. AJ308234 and AJ308235) encoding 547 or 533 amino acid residue proteins with 89, 87, 83 and 81% homology to the human, rabbit, rat, and mouse OAT1, respectively. Heterologous expression of pOAT1 in Xenopus laevis oocytes revealed an apparent K(m) for [3H]PAH of 3.75 +/- 1.6 microM. [3H]PAH uptake mediated by pOAT1 was abolished by 0.5 mM glutarate or 1 mM probenecid. Functional characterization of pOAT1A did not show any affinity for [3H]PAH. In summary, we cloned two alternative splice variants of the pig ortholog of organic anion transporter 1. One splice form (pOAT1) showed typical functional characteristics of organic anion transporter 1, whereas the second form appears not to transport PAH. 相似文献
66.
Md. Sahab Uddin Abdullah Al Mamun Zubair Khalid Labu Oscar Hidalgo-Lanussa George E. Barreto Ghulam Md Ashraf 《Journal of cellular physiology》2019,234(6):8094-8112
Autophagy is a preserved cytoplasmic self-degradation process and endorses recycling of intracellular constituents into bioenergetics for the controlling of cellular homeostasis. Functional autophagy process is essential in eliminating cytoplasmic waste components and helps in the recycling of some of its constituents. Studies have revealed that neurodegenerative disorders may be caused by mutations in autophagy-related genes and alterations of autophagic flux. Alzheimer’s disease (AD) is an irrevocable deleterious neurodegenerative disorder characterized by the formation of senile plaques and neurofibrillary tangles (NFTs) in the hippocampus and cortex. In the central nervous system of healthy people, there is no accretion of amyloid β (Aβ) peptides due to the balance between generation and degradation of Aβ. However, for AD patients, the generation of Aβ peptides is higher than lysis that causes accretion of Aβ. Likewise, the maturation of autophagolysosomes and inhibition of their retrograde transport creates favorable conditions for Aβ accumulation. Furthermore, increasing mammalian target of rapamycin (mTOR) signaling raises tau levels as well as phosphorylation. Alteration of mTOR activity occurs in the early stage of AD. In addition, copious evidence links autophagic/lysosomal dysfunction in AD. Compromised mitophagy is also accountable for dysfunctional mitochondria that raises Alzheimer’s pathology. Therefore, autophagic dysfunction might lead to the deposit of atypical proteins in the AD brain and manipulation of autophagy could be considered as an emerging therapeutic target. This review highlights the critical linkage of autophagy in the pathogenesis of AD, and avows a new insight to search for therapeutic target for blocking Alzheimer’s pathogenesis. 相似文献
67.
Saraswathi Umavathi Shahid Mahboob Marimuthu Govindarajan Khalid A. Al-Ghanim Zubair Ahmed P. Virik Norah Al-Mulhm Murugesh Subash Kasi Gopinath C. Kavitha 《Saudi Journal of Biological Sciences》2021,28(3):1808-1815
The present work aims to synthesize zinc oxide (ZnO) nanoparticles via green approaches using leaf extract of Parthenium hysterophorus. UV–vis and FT-IR tests confirmed the existence of biomolecules, active materials, and metal oxides. The X-ray diffraction structural study exposes the ZnO nanoparticles formation with hexagonal phase structures. SEM and TEM analysis reveal surface morphologies of ZnO nanoparticles and most of them are spherical with a size range of 10 nm. ZnO nanoparticles were revealed strong antimicrobial activity against both bacterial and fungal strains. The germination of seeds and vegetative growth of Sesamum indicum has been greatly improved. 相似文献
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69.
Peroxynitrite (ONOO(-)) is a strong and potent oxidizing and nitrating agent, formed by rapid reaction of two highly reactive, nitric oxide and superoxide anion. The action of peroxynitrite generated by synergistic action of diethylamine NONOate (a nitric oxide donor) and 1,4-hydroquinone (a superoxide donor), on human placental DNA was monitored by ultraviolet and fluorescence spectroscopy, melting temperature studies, S1 nuclease digestibility and alkaline agarose electrophoresis. The peroxynitrite modified human DNA (ONOO(-)-DNA) was found to be highly immunogenic in rabbits inducing high titre immunogen specific antibodies. However, the induced antibodies exhibited appreciable cross-reactivity with various polynucleotides and nucleic acids. The data demonstrate that the antibodies, though cross-reactive, preferentially bind ONOO(-)-modified epitopes on DNA. Visual detection of immune complex formation with native and ONOO(-)-DNA reiterated preferential binding with modified human DNA. DNA modified by ONOO(-) presents unique epitopes which may be one of the factors for the induction of autoantibodies in cancer patients. 相似文献
70.