Browsing by Author "Vivek K. Bajpai"

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Editorial: Deciphering plant-microbiome interactions under abiotic stresses
(Elsevier B.V., 2023) Zeba Usmani; Vijai K. Gupta; Vivek K. Bajpai; Pratyoosh Shukla
[No abstract available]
Improvement strategies, cost effective production, and potential applications of fungal glucose oxidase (GOD): Current updates
(Frontiers Media S.A., 2017) Manish K. Dubey; Andleeb Zehra; Mohd Aamir; Mukesh Meena; Laxmi Ahirwal; Siddhartha Singh; Shruti Shukla; Ram S. Upadhyay; Ruben Bueno-Mari; Vivek K. Bajpai
Fungal glucose oxidase (GOD) is widely employed in the different sectors of food industries for use in baking products, dry egg powder, beverages, and gluconic acid production. GOD also has several other novel applications in chemical, pharmaceutical, textile, and other biotechnological industries. The electrochemical suitability of GOD catalyzed reactions has enabled its successful use in bioelectronic devices, particularly biofuel cells, and biosensors. Other crucial aspects of GOD such as improved feeding efficiency in response to GOD supplemental diet, roles in antimicrobial activities, and enhancing pathogen defense response, thereby providing induced resistance in plants have also been reported. Moreover, the medical science, another emerging branch where GOD was recently reported to induce several apoptosis characteristics as well as cellular senescence by downregulating Klotho gene expression. These widespread applications of GOD have led to increased demand for more extensive research to improve its production, characterization, and enhanced stability to enable long term usages. Currently, GOD is mainly produced and purified from Aspergillus niger and Penicillium species, but the yield is relatively low and the purification process is troublesome. It is practical to build an excellent GOD-producing strain. Therefore, the present review describes innovative methods of enhancing fungal GOD production by using genetic and non-genetic approaches in-depth along with purification techniques. The review also highlights current research progress in the cost effective production of GOD, including key advances, potential applications and limitations. Therefore, there is an extensive need to commercialize these processes by developing and optimizing novel strategies for cost effective GOD production. © 2017 Dubey, Zehra, Aamir, Meena, Ahirwal, Singh, Shukla, Upadhyay, Bueno-Mari and Bajpai.
Potassium solubilizing rhizobacteria (KSR): Isolation, identification, and K-release dynamics from waste mica
(Elsevier, 2015) Vijay Singh Meena; Bihari Ram Maurya; Jai Prakash Verma; Abhinav Aeron; Ashok Kumar; Kangmin Kim; Vivek K. Bajpai
Injudicious application of chemical fertilizers in India has a considerable negative impact on economy and environmental sustainability. There is a growing need to turn back to nature or sustainable agents that promote evergreen agriculture. Among such natural bio-agents, the potassium solubilizing rhizobacteria (KSR), which solubilize fixed forms of potassium (K) to plant available K by various mechanisms including acidolysis, chelation, exchange reactions, complexolysis, and production of organic acids are considered one such available viable alternative. KSR represent an enormous potential to transform the problems associated with the agrarian sector. Twelve KSR were isolated from rhizosphere of common Kharif crops (maize, banana. , sugarcane, potato. , pigeon pea, and tobacco) based on their ability to solubilize waste mica (muscovite and biotite) in plate assay. All these KSR were capable of K-solubilization from waste mica in both solid and liquid medium in-vitro. On the basis of 16S ribosomal DNA (16S rDNA) sequencing, out of 12 KSR, 7 strains belonged to Agrobacterium tumefaciens species, 2 strains each representing Rhizobium pusense and Flavobacterium anhuiense clade, while one strain showed affiliation to Rhizobium rosettiformans. As a result, among the assessed 12 KSR, A. tumefaciens OPVS 11 and R. pusense OPVS6 occurred at the highest K-solubilizing frequency. Studies on mechanism of K-solubilization by these strains demonstrated significant reduction in media pH and increased K release with incubation period under both waste muscovite and biotite as a sole source of insoluble K mineral. © 2015 Elsevier B.V.
Revisiting the plant growth-promoting rhizobacteria: lessons from the past and objectives for the future
(Springer, 2020) Abhinav Aeron; Ekta Khare; Chaitanya Kumar Jha; Vijay Singh Meena; Shadia Mohammed Abdel Aziz; Mohammed Tofazzal Islam; Kangmin Kim; Sunita Kumari Meena; Arunava Pattanayak; Hosahatti Rajashekara; Ramesh Chandra Dubey; Bihari Ram Maurya; Dinesh Kumar Maheshwari; Meenu Saraf; Mahipal Choudhary; Rajhans Verma; H.N. Meena; A.R.N.S. Subbanna; Manoj Parihar; Shruti Shukla; Govarthanan Muthusamy; Ram Swaroop Bana; Vivek K. Bajpai; Young-Kyu Han; Mahfuzur Rahman; Dileep Kumar; Norang Pal Singh; Rajesh Kumar Meena
Plant beneficial rhizobacteria (PBR) is a group of naturally occurring rhizospheric microbes that enhance nutrient availability and induce biotic and abiotic stress tolerance through a wide array of mechanisms to enhance agricultural sustainability. Application of PBR has the potential to reduce worldwide requirement of agricultural chemicals and improve agro-ecological sustainability. The PBR exert their beneficial effects in three major ways; (1) fix atmospheric nitrogen and synthesize specific compounds to promote plant growth, (2) solubilize essential mineral nutrients in soils for plant uptake, and (3) produce antimicrobial substances and induce systemic resistance in host plants to protect them from biotic and abiotic stresses. Application of PBR as suitable inoculants appears to be a viable alternative technology to synthetic fertilizers and pesticides. Furthermore, PBR enhance nutrient and water use efficiency, influence dynamics of mineral recycling, and tolerance of plants to other environmental stresses by improving health of soils. This report provides comprehensive reviews and discusses beneficial effects of PBR on plant and soil health. Considering their multitude of functions to improve plant and soil health, we propose to call the plant growth-promoting bacteria (PGPR) as PBR. © 2019, Springer-Verlag GmbH Germany, part of Springer Nature.
Tinospora cordifolia (Giloy): Phytochemistry, ethnopharmacology, clinical application and conservation strategies
(Bentham Science Publishers, 2020) Pradeep Kumar; Madhu Kamle; Dipendra Kumar Mahato; Himashree Bora; Bharti Sharma; Prasad Rasane; Vivek K. Bajpai
Tinospora cordifolia (Giloy) is a medicinal plant used in folk and Ayurvedic medicines throughout India since ancient times. All the parts of the plant are immensely useful due to the presence of different compounds of pharmaceutical importance belonging to various groups as alkaloids, diterpenoid lactones, glycosides, steroids, sesquiterpenoid, and phenolics. These compounds possess pharmacological properties, which make it anti-diabetic, antipyretic, anti-inflammatory, anti-oxidant, hepato-protective, and immuno-modulatory. However, due to the increasing population, there is an in-adequate supply of drugs. Therefore, this review focuses on phytochemistry, ethnopharmacology, clinical application and its conservation strategies so that the plant can be conserved for future generations and utilized as alternative medicine as well as to design various pharmacologically important drugs. © 2020 Bentham Science Publishers.