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排序方式: 共有238条查询结果,搜索用时 31 毫秒
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Antim K. Maurya Gaurav Aggarwal Sachin Vashisath Vikas Kumar Prof. Dr. Vijai K. Agnihotri 《化学与生物多样性》2023,20(8):e202300223
The aim of current work was to determine essential oils (EOs) composition from three Eucalyptus species, including E. citriodora, E. camaldulensis and E. globulus and assess their α-glucosidase inhibitory activity. The EOs were collected using the hydrodistillation technique and characterized by GC/MS, GC-FID and NMR. The isolated EOs from leaves parts of Eucalyptus species varied from 0.56 to 1.0 % on fresh weight basis. The content of the EOs was distinct according to the species. The most abundant metabolites were identified as citronellal (0–83.0 %), 1,8-cineole (0.2–44.8 %), spathulenol (0.4–16.1 %) α-pinene (0.4–15.9 %), p-cymene (3.7–11.9 %), citronellol (0–8.6 %), β-eudesmol (5.3–8.6 %) and β-pinene (0–7.1 %). The EOs obtained from targeted samples exhibited strong α-glucosidase inhibitory activity. These results are encouraging and underline that the EOs of Eucalyptus species may be a promising alternative source of natural antidiabetic. 相似文献
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Pradhan Satyabrata Singh Sanjay Kumar Srivastav Manish Prakash Jai Lal Sanjay Kumar Padaria Jasdeep Chatrath Goswami Amit Kumar Maurya Naveen Kumar 《Plant Cell, Tissue and Organ Culture》2021,145(1):155-172
Plant Cell, Tissue and Organ Culture (PCTOC) - A method for in vitro screening and selection of drought (moisture stress) tolerant mango calli was developed. Poly ethylene glycol (PEG) (Molecular... 相似文献
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Chowdhury Labrechai Mog Maurya Rajesh Kumar Singh Rajeev Kumar Mishra Shubhi Chauhan Nishita Jena J. K. Mohindra Vindhya 《Molecular biology reports》2021,48(11):7333-7342
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Singh Jiya Maurya Ankit Singh Prashant K. Viswanathan V. Ahmad Md Irshad Sharma Pradeep Sharma Sujata Singh Tej P. 《The protein journal》2021,40(6):857-866
The Protein Journal - C-lobe represents the C-terminal half of lactoferrin which is a bilobal 80 kDa iron binding glycoprotein. The two lobes are designated as N-lobe (Ser1-Glu333) and... 相似文献
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Rashmi Singh S. Maurya R. S. Upadhyay 《Archives Of Phytopathology And Plant Protection》2013,46(16):1579-1588
Antagonistic capability of Trichoderma harzianum was improved through UV-irradiation. Four different type of mutants, T. harzianum - Ma (Th-Ma), T. harzianum - Mb(Th-Mb), T. harzianum - Mc (Th-Mc), T. harzianum - Md (Th-Md) of T. harzianum and the parent strain (Th-P) were selected for further studies. Th-Ma and Th-Mb showed more antagonistic capability against Macrophomina phaseolina than its parent strain Th-P in dual culture. Biochemical analysis of these four mutants and the parent strain showed that Th-Ma releases higher level of two lytic enzymes i.e. chitinases and cellulases and Th-Mb produces more β-1,3-glucanase activity than the parent strain. Culture filtrate of Th-Ma also showed antifungal properties. Study of the competitive saprophytic ability (CSA) of these four mutants and the parent strain were also made. Th-Ma exhibited higher CSA than the parental isolate while Th-Md had less CSA than all other mutants and the parent strain of T. harzianum. 相似文献
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Udai Pratap Singh Sudarshan Maurya Gopal Nath Mandavi Singh 《Archives Of Phytopathology And Plant Protection》2013,46(13):1546-1557
High-performance liquid chromatographic (HPLC) analysis of chloroform fraction (CF) of cow urine showed rich pool of phenolic acids. Antifungal and antibacterial bioassays of CF have shown its tremendous efficacy against some fungal plant pathogens as well as human pathogenic bacteria at very low concentrations. The CF also inhibited powdery mildew (Erysiphe cichoracearum) of balsam (Impatiens balsamania) under field conditions during pre- and post-inoculation treatments. HPLC analysis of pre- and post-inoculation-treated plant leaves indicated that CF induced phenolic acid synthesis as compared to control. The results revealed that CF of cow urine has the potential for controlling some important human diseases. The result on balsam powdery mildew is a good signal that CF may also be effective against other plant diseases in the field. 相似文献
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Prasoon Gupta Upasana Sharma Praveen Gupta Kiran Babu Siripurapu Rakesh Maurya 《Bioorganic & medicinal chemistry》2013,21(5):1116-1122
Phytochemical investigation of the n-butanol fraction of Evolvulus alsinoides (Linn.) led to the isolation of three new phenolic glycosides, evolvosides C, D and E (1–3) along with six known compounds (4–9). The structures of the compounds were elucidated on the basis of spectroscopic analysis, viz. 1D and 2D NMR experiments, chemical study, and comparison with literature data. Evolvoside C (1) was characterized as kaempferol 4′-O-β-d-glucopyranosyl-(1→2)-α-l-rhamnopyranosyl-(1→6)-β-d-glucopyranoside, whereas evolvosides D and E (2–3) were found to be mono and di-O-methyl derivatives of 1. The new compounds (1–3) represent rare triglycoside derivatives of flavonol at C-4′. The isolated compounds (1–6) were screened for acute stress-induced biochemical changes in male Sprague–Dawley rats at a dose of 40 mg/kg body weight. Compounds 1 and 2 displayed anti-stress effects by normalizing hyperglycemia, plasma corticosterone, plasma creatine kinase, and adrenal hypertrophy. Compounds 3 and 6 were also found to be effective in normalizing most of these stress parameters, whereas compounds 4 and 5 were ineffective in normalizing most of these effects. 相似文献
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Dharmendra Singh Chandan Kumar Singh Ram Sewak Singh Tomar Jyoti Taunk Ranjeet Singh Sadhana Maurya Ashish Kumar Chaturvedi Pal Madan Singh Rajendra Dubey Sarawan Kumar 《PloS one》2016,11(1)
The success of drought tolerance breeding programs can be enhanced through molecular assortment of germplasm. This study was designed to characterize molecular diversity within and between Lens species with different adaptations to drought stress conditions using SSR markers. Drought stress was applied at seedling stage to study the effects on morpho-physiological traits under controlled condition, where tolerant cultivars and wilds showed 12.8–27.6% and 9.5–23.2% reduction in seed yield per plant respectively. When juxtaposed to field conditions, the tolerant cultivars (PDL-1 and PDL-2) and wild (ILWL-314 and ILWL-436) accessions showed 10.5–26.5% and 7.5%–15.6% reduction in seed yield per plant, respectively under rain-fed conditions. The reductions in seed yield in the two tolerant cultivars and wilds under severe drought condition were 48–49% and 30.5–45.3% respectively. A set of 258 alleles were identified among 278 genotypes using 35 SSR markers. Genetic diversity and polymorphism information contents varied between 0.321–0.854 and 0.299–0.836, with mean value of 0.682 and 0.643, respectively. All the genotypes were clustered into 11 groups based on SSR markers. Tolerant genotypes were grouped in cluster 6 while sensitive ones were mainly grouped into cluster 7. Wild accessions were separated from cultivars on the basis of both population structure and cluster analysis. Cluster analysis has further grouped the wild accessions on the basis of species and sub-species into 5 clusters. Physiological and morphological characters under drought stress were significantly (P = 0.05) different among microsatellite clusters. These findings suggest that drought adaptation is variable among wild and cultivated genotypes. Also, genotypes from contrasting clusters can be selected for hybridization which could help in evolution of better segregants for improving drought tolerance in lentil. 相似文献