reetesh kumar

reetesh kumar


Research Focus & Metrics

Academic Career Length

19Years (2008-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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26 January 2008 in Journal of Agricultural and Food Chemistry
Verified
Journal Article
Closed access
RTRitu Tomar
Ritu Tomar
RKreetesh kumar
reetesh kumar
MJM. V. Jagannadham
M. V. Jagannadham

27 March 2023 in Viruses
Verified
Journal Article
Open access
PDF file
RKreetesh kumar
reetesh kumar
YSYogesh Srivastava
Yogesh Srivastava
Pandiyan MuthuramalingamPandiyan Muthuramalingam
Pandiyan Muthuramalingam
SSSunil Kumar Singh
Sunil Kumar Singh
GVGeetika Verma
Geetika Verma
RTRajeev K Tyagi
Rajeev K Tyagi
Genetic variant(s) of concern (VoC) of SARS-CoV-2 have been emerging worldwide due to mutations in the gene encoding spike glycoprotein. We performed comprehensive analyses of spike protein mutations in the significant variant clade of SARS-CoV-2, using the data available on the Nextstrain server. We selected various mutations, namely, A222V, N439K, N501Y, L452R, Y453F, E484K, K417N, T478K, L981F, L212I, N856K, T547K, G496S, and Y369C for this study. These mutations were chosen based on their global entropic score, emergence, spread, transmission, and their location in the spike receptor binding domain (RBD). The relative abundance of these mutations was mapped with global mutation D614G as a reference. Our analyses suggest the rapid emergence of newer global mutations alongside D614G, as reported during the recent waves of COVID-19 in various parts of the world. These mutations could be instrumentally imperative for the transmission, infectivity, virulence, and host immune system’s evasion of SARS-CoV-2. The probable impact of these mutations on vaccine effectiveness, antigenic diversity, antibody interactions, protein stability, RBD flexibility, and accessibility to human cell receptor ACE2 was studied in silico. Overall, the present study can help researchers to design the next generation of vaccines and biotherapeutics to combat COVID-19 infection.

14 October 2023 in Biocatalysis and Agricultural Biotechnology
Verified
Journal Article
Closed access
STSakshi Tomar
Sakshi Tomar
SAShruti Agarwal
Shruti Agarwal
HSHarshita Singh
Harshita Singh
RKreetesh kumar
reetesh kumar
Kamal Ahmad QureshiKamal Ahmad Qureshi
Kamal Ahmad Qureshi
PRPankaj K. Kumar Rai
Pankaj K. Kumar Rai

3 March 2025 in Bacteria
Verified
Journal Article
Open access
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DJDiksha Joshi
Diksha Joshi
AKAmit Kaushik
Amit Kaushik
RKreetesh kumar
reetesh kumar
AAAditi Arya
Aditi Arya
Gustavo SantoyoGustavo Santoyo
Gustavo Santoyo
Ajay KumarAjay Kumar
Ajay Kumar
In the recent past, microbiome manipulation has emerged as a promising approach to improve plant growth performance by exploring the deep insight of plant–microbe interactions. The exploration of a plant microbiome either present on an ectosphere or endosphere can provide a far better understanding about the potential application of plant-associated microbes for the improvement of plant growth, protection from pathogen invasion, and tolerance to environmental stresses of a diverse nature. In this context, next-generation sequencing methods, omics approaches, and synthetic biology have made significant progress in plant microbiome research and are being frequently used to explore the intriguing role of plant-associated microorganisms. Despite the successfulness of conventional approaches, the incorporation of CRISPR/Cas9, RNA interference technology, rhizosphere engineering, microbiome engineering, and other manipulation techniques appear to be a promising approach to enhancing plant performance, and tolerance against biotic and abiotic stress factors. The present review presents the significance of plant microbe interaction, vital functional aspects, collaborative action, potential constraints, and finally the latest developments in bioengineering approaches destined for microbiome modulation with an objective to improve the performance of a host plant challenged with environmental stressors.

Verified
Journal Article
Open access
PDF file
Anand KumarAnand Kumar
Anand Kumar
Pandiyan MuthuramalingamPandiyan Muthuramalingam
Pandiyan Muthuramalingam
RKreetesh kumar
reetesh kumar
STSavvitri Tiwari
Savvitri Tiwari
Laxmidas VermaLaxmidas Verma
Laxmidas Verma
Hyunsuk ShinHyunsuk Shin
Hyunsuk Shin
Global temperature rise has become a critical challenge to agricultural sustainability, severely affecting crop growth, productivity, and survival. Human-induced climate change and greenhouse gas emissions cause heat stress, disrupting plant metabolism and physiology at all developmental stages from germination to harvest. Elevated temperatures during germination impair water uptake, enzyme activity, and energy metabolism, leading to poor or uneven seedling emergence. At key phases such as flowering and grain filling, heat stress limits photosynthesis and transpiration by inducing stomatal closure, restricting carbon dioxide intake, and reducing photosynthetic efficiency. The reproductive stage is particularly vulnerable to high temperatures, impairing pollen viability, preventing anther dehiscence, and reducing fertilization success. Membrane instability further accelerates chlorophyll degradation and leaf senescence. Heat stress also alters biochemical and hormonal balances by disrupting the synthesis and signaling of auxins, gibberellins, and abscisic acid (ABA). Elevated ABA promotes stomatal closure to enhance stress tolerance, while increased ethylene levels trigger premature leaf senescence and abscission. These hormonal shifts and oxidative stress hinder plant growth and reproduction, threatening global food security. Although plants employ adaptive mechanisms such as heat shock protein expression and stress-responsive gene regulation, current strategies remain inadequate, highlighting the urgent need for innovative approaches to improve crop resilience under rising temperatures.

17 September 2025 in Biosensors
Verified
Journal Article
Open access
PDF file
Somnath MajiSomnath Maji
Somnath Maji
MKMyounggyu Kwak
Myounggyu Kwak
RKreetesh kumar
reetesh kumar
Hyungseok LeeHyungseok Lee
Hyungseok Lee
Biosensors have undergone transformative advancements, evolving into sophisticated wearable and implantable devices capable of real-time health monitoring. Traditional manufacturing methods, however, face limitations in scalability, cost, and design complexity, particularly for miniaturized, multifunctional biosensors. The integration of 3D printing technology addresses these challenges by enabling rapid prototyping, customization, and the production of intricate geometries with high precision. This review explores how additive manufacturing techniques facilitate the fabrication of flexible, stretchable, and biocompatible biosensors. By incorporating advanced materials like conductive polymers, nanocomposites, and hydrogels, 3D-printed biosensors achieve enhanced sensitivity, durability, and seamless integration with biological systems. Innovations such as biodegradable substrates and multi-material printing further expand applications in continuous glucose monitoring, neural interfaces, and point-of-care diagnostics. Despite challenges in material optimization and regulatory standardization, the convergence of 3D printing with nanotechnology and smart diagnostics heralds a new era of personalized, proactive healthcare, offering scalable solutions for both clinical and remote settings. This synthesis underscores the pivotal role of additive manufacturing in advancing wearable and implantable biosensor technology, paving the way for next-generation devices that prioritize patient-specific care and real-time health management.