Ranjeet Ranjan Kumar

Ranjeet Ranjan Kumar
Indian Agricultural Research Institute | IARI · Division of Biochemistry

PhD in Biochemistry

About

347
Publications
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Introduction
Dr. Ranjeet Ranjan Kumar (Senior Scientist) at Division of Biochemistry, IARI has worked in the area of ‘Stress-Genomics’ particularly for solving the problem of ‘Terminal Heat Stress’ in wheat. He has cloned more than 40 novel stress-associated genes from wheat. Dr. Ranjan has published more than 30 publications in peer reviewed journals, 2 books, and several book chapters and popular articles in the area of heat stress tolerance in wheat. He was screened twice for the ‘Best Teacher Award’ of IARI. Dr. Ranjan was involved in imparting training as coordinator to assistant professor, scientist, etc. under the CAFT program of ICAR. He has experience of handling 14 in-house and externally funded projects in diverse areas of agricultural science.
Additional affiliations
July 2017 - October 2018
Indian Agricultural Research Institute
Position
  • Senior Researcher
November 2008 - April 2016
Indian Agricultural Research Institute
Position
  • Scientist (SS)
June 2008 - present
Indian Agricultural Research Institute
Position
  • Scientist (SS)

Publications

Publications (347)
Article
Full-text available
Si is one of the major elements needed by plants in order to cope with adverse environmental conditions, and is considered a quasi-beneficial element. Si is involved in root growth and differentiation, transportation of other elements, carbon assimilation, activities of key enzymes, chelation of toxic elements, regulation of redox system, distribut...
Article
Full-text available
Whole grain consumption has been linked to enhanced health benefits, in which phenolic compounds play a vital role. Apart from this, phenolic compounds in cereal grains also make a significant contribution in browning and off-flavor generation of cereal products during storage. This review discusses the nutritional role of phenolic compounds presen...
Article
Full-text available
Global Climate change has adversely affected the production and productivity of agriculturally important crops. Wheat, being staple food grain crop, is highly sensitive to terminal heat stress. The mechanism of heat stress tolerance has yet not been elucidated in wheat. The tolerance against heat stress has been reported to be quantitative trait co...
Article
Full-text available
This study reports the identification of a unique lentil (Lens culinaris Medik.) genotype L4717-NM, a natural mutant (NM) derived from a variety L4717, producing brown, black, and spotted seed-coat colored seeds in a single plant, generation after generation, in different frequencies. The genetic similarity of L4717 with that of L4717-NM expressing...
Article
Inhibition of carbohydrate digestion and modulation of glucose uptake are the major mechanisms of anti-hyperglycemic potential known to be played by phenolics; but the role of archaeologically relevant staple pearl millet (Pennisetum glaucum; PM), is still much unknown. A combined approach using in vitro inhibitory data and in silico docking of PM...
Article
Pearl millet is a nutrient-rich and drought tolerant crop with high production potential under changing climatic conditions. Despite the nutritional and climatic advantage, the rancidity and browning of pearl millet flour during storage is the major limitation to consumer acceptance. In the present study, four diverse pearl millet genotypes (Dhansh...
Article
Full-text available
Microgreens have been used for raw consumption and are generally viewed as healthy food. This study aimed to optimize the yield parameters, shelf life, sensory evaluation and characterization of total aerobic bacteria (TAB), yeast and mold (Y&M), Escherichia coli, Salmonella spp., and Listeria spp. incidence in mungbean (Vigna radiata (L.) Wilczek)...
Article
Full-text available
Worldwide, millets are regarded as a nutri-grain; however, they are the least exploited. Pearl millet grain is abundant in health-beneficial nutrients, making it suitable as food and feed; though poor in bioavailability of micronutrients like iron (Fe) and zinc (Zn) due to abundance of anti-nutritional factors causing micronutrient deficiencies (MN...
Technical Report
Full-text available
The nutritional composition of 87 diverse Pearl millet (Pennisetum glaucum (L.) R. Br.) germplasm including landraces and commercial varieties was assessed through standard protocols. The results indicated a substantial variability in total carbohydrates [starch (50.37–63.25), amylose (19.26–27.90), sucrose (0.58–1.53), glucose (0.32–0.75), resista...
Article
Full-text available
Terminal heat stress severely afects the growth of wheat crop causing drastic reduction in the yield and nutritional quality of the grains. Various technologies have been developed in the past to alleviate the efect of terminal heat stress (HS) in wheat, but with limited success. Silicon (Si), being quasi-essential element, has many benefcial advan...
Article
Flour of millets is nutritionally better, as compared to cereals, but has problem of low shelf-life. Here, we analyzed the nutritional density, and shelf-life of flours of millets (pearl millet, foxtail millet), and cereals (wheat, maize) stored for different durations. We observed maximum starch content in cereals (70-80%) compared with millets (4...
Article
Full-text available
Aims: To study the genetic and transcript profiling of the genes specifying cytosolic HSP90s in Triticum aestivum. Study Design: Random sampling. Place and Duration of Study: Indian Agricultural Research Institute, New Delhi, India, between August to December, 2011. Methodology: We include C-306 (thermotolerant) and PBW343 (thermosusceptible) culti...
Article
Flour of millets is nutritionally better, as compared to cereals, but has problem of low shelf-life. Here, we analyzed the nutritional density, and shelf-life of flours of millets (pearl millet, foxtail millet), and cereals (wheat, maize) stored for different durations. We observed maximum starch content in cereals (70–80%) compared with millets (4...
Article
Full-text available
Dry root rot (Rhizoctonia bataticola) is an important disease of lentils (Lens culinaris Medik.).To gain an insight into the molecular aspects of host-pathogen interactions, the RNA-seq approach was used in lentils following inoculation with R.bataticola. The RNA-Seq has generated >450 million high-quality reads (HQRs) and nearly 96.97% were proper...
Article
Pearl millet is a nutrient dense and gluten free cereal, however it's flour remains underutilized due to the onset of rancidity during its storage. To the best of our knowledge, processing methods, which could significantly reduce the rancidity of the pearl millet flour during storage, are non-existent. In this study, pearl millet grains were subje...
Article
Full-text available
The rising demand for popcorn necessitates improving the popping quality with higher yield of popcorn cultivars. Towards this direction several Quantitative Traits Loci (QTLs) for popping traits have been identified. However, identification of accurate and consistent QTLs across different genetic backgrounds and environments is necessary to effecti...
Article
Full-text available
Advances in proteome research have opened the gateway to understanding numerous metabolic pathways and fundamental mechanisms involved in abiotic stress tolerance. In the present study, the antioxidant capacity of four tomato genotypes i.e., Kashi Amrit, Kashi Anupam, EC-317-6-1, and WIR-4360 was determined under drought stress to ascertain the sca...
Article
The nutritional composition of 87 diverse Pearl millet (Pennisetum glaucum (L.) R. Br.) germplasm including landraces and commercial varieties was assessed through standard protocols. The results indicated a substantial variability in total carbohydrates [starch (50.37–63.25), amylose (19.26–27.90), sucrose (0.58–1.53), glucose (0.32–0.75), resista...
Article
Full-text available
Mungbeans and lentils are relatively easily grown and cheaper sources of microgreens, but their phytonutrient diversity is not yet deeply explored. In this study, 20 diverse genotypes each of mungbean and lentil were grown as microgreens under plain-altitude (Delhi) and high-altitude (Leh) conditions, which showed significant genotypic variations f...
Article
Starch-sugar homeostasis and starch molecular configuration regulates the dynamics of starch digestibility which result in sweet sensory perception and eliciting glycemic response, which has been measured in vitro as inherent glycemic potential (IGP). The objective of the research was to understand the key determinants of IGP as well as sweetness i...
Article
Pearl millet is considered as ‘nutri-cereal’ because of high nutrient density of the seeds. The grain has limited use because of low keeping quality of the flour due to the activities of rancidity causing enzymes like lipase, lox, pox and PPO. Among all the enzymes, lipase is most notorious because of its robust nature and high activity under diffe...
Preprint
Full-text available
Terminal HS is one of the main bottle-neck in wheat yield and grain-quality. Here, we have developed wheat mutant (M 3 ) for HS-tolerance [parent-MP3054- C-306/CB.SPRING BW/CPAN2072 (Parentage)]. To elucidate the mechanism of thermotolerance in mutant, we performed de novo transcriptomic sequencing of mutant (M 3 ), parent (P 3 ), and mutant expose...
Article
High-temperature stress adversely affects plant processes and has become a recurrent event. Identifying wheat genotypes that combine basal tolerance with thermomemory mechanisms without significant yield penalties is desirable. Here, we examined six wheat genotypes for their tolerance to high-temperature (HT) stress at the jointing stage. HT stress...
Article
Full-text available
Wheat, being sensitive to terminal heat, causes drastic reduction in grain quality and yield. MAPK cascade regulates the network of defense mechanism operated inside plant system. Here, we have identified 21 novel MAPKs through gel-based proteomics and RNA-seq data analysis. Based on digital gene expression, two transcripts (transcript_2834 and tra...
Article
Full-text available
Yellow Mosaic Disease (YMD) in mungbean [ Vigna radiata (L.) R. Wilczek] is one of the most damaging diseases in Asia. In the northern part of India, the YMD is caused by Mungbean Yellow Mosaic India Virus (MYMIV), while in southern India this is caused by Mungbean Yellow Mosaic Virus (MYMV). The molecular mechanism of YMD resistance in mungbean re...
Chapter
Full-text available
It is not the most grounded of the species that survive, nor the most shrewd, however one most receptive to change. Crop plants being under various abiotic stresses result into a genuine yield losses of about more prominent than 50 percent on an average, thus constrainting the agricultural efficiency worldwide. Plant breeding innovations developed...
Chapter
Full-text available
Phytohormones are key plant growth regulators synthesized in defined organs of the plant that have a noticeable impact on plant metabolism and play a dramatic role in the alleviation of abiotic stresses. Though, abiotic stresses modify the endogenous levels of phytohormones such as auxins, gibberellins, abscisic acid (ABA), jasmonic acid and salicy...
Chapter
Full-text available
Reactive oxygen species (ROS) are unavoidable consequences of aerobic metabolism. In plant cell chloroplast, mitochondria, peroxisome and apoplastic space are the major site of ROS production. ROS are double edged sword of plant life. Being a reactive species it directly modifies cellular components and causes cell death. Under defined window of RO...
Chapter
Full-text available
Crop production continues to be controlled by a number of biotic and abiotic factors that can shrink crop yield and quality. Potassium (K) is an important mineral nutrient that is involved in plant biochemical and physiological processes that control plant growth and metabolism. It also plays a pivotal role in the survival of plants under different...
Chapter
Full-text available
RNAi mediated gene silencing has been demonstrated to serve as a defence mechanism against abiotic stress. Micro RNAs are small non coding RNA molecule that is involved in post transcriptional gene regulation by either translational repression or by inducing mRNA cleavage. These small non-coding RNAs are being considered as one of the master regula...
Cover Page
Full-text available
Today’s agriculture is facing great challenges to make sure a sufficient food supply while maintaining high productivity and quality standards. Unfavorable climate not only causes changes in agro-ecological conditions, but tortuously distresses growth and distribution of incomes. Adverse climatic factors, such as extreme temperature, drought, salin...
Article
Wheat, being staple food grain crop, is highly sensitive to heat stress. The effect is more evident under present threat of global climate change. Very limited information about heat-responsive transcription factor is known in wheat. A putative Heat Shock Factor (HSF) was cloned from wheat under HS. The gene was titled as Hsf2 (acc No. KP063542). T...
Conference Paper
Full-text available
Extended Summaries page 5-7 1st Indian Rice Congress – 2020 Rice Research and Development for Achieving Sustainable Development Goals December 8-9, 2020 Published in December 2020 Convener Dr. H Pathak, President, ARRW, Cuttack Dr. D Maiti, Director, ICAR-NRRI, Cuttack
Conference Paper
Full-text available
Abstract and Poster of International Plant Physiology Virtual Conference-2020 - Prospects of Plant Physiology for Climate Proofing Agriculture December, 6-7, 2020, page 116.
Conference Paper
Full-text available
Waterlogging particularly at seedling and early establishment stage negatively affect growth, development and ultimately seed yield in soybean. Traits such as plant height enhancement, PS-II efficiency and canopy greenness were evaluated to identify waterlogging tolerant soybean genotypes.
Article
Full-text available
The ATP‐binding cassette (ABC) transporters belong to a large protein family predominantly present in diverse species. ABC transporters are driven by ATP hydrolysis and can act as exporters as well as importers. These proteins are localized in the membranes of chloroplasts, mitochondria, peroxisomes and vacuoles. ABC proteins are involved in regula...
Article
Terminal heat stress (HS) is a key barrier for wheat grain yield and quality. Various physiochemical and molecular parameters such as photosynthetic rate, expression analysis and activity of starch synthase (SS), total starch, amylose and amylopectin content, total amylolytic activity, and total antioxidant capacity (TAC) were analysed in wheat cvs...
Article
Full-text available
Heat stress (HS) is detrimental to wheat production and productivity globally. To combat HS, several genetic, molecular, and genomic approaches have been employed in the past. Analyzing the physiochemical mechanisms and the important regulatory genes involved is the key to develop HS tolerant plants. In the present work, a total of 243 novel simple...
Article
Full-text available
Terminal heat stress (HS) has adverse effect on the quantity and quality of wheat grains, as evident from the reduction in the yield. Plant has inherited tolerance mechanism to protect itself from the environmental stresses by modulating the expression and activity of stress associated genes (SAGs)/proteins (SAPs) which protect the plant from the d...
Article
Full-text available
Millets are known for its nutritional excellence because of its high nutrient density. Among all the millets, pearl millet is considered the most important nutricereals, having 3–8% lipids. Rancidity or off-odour development in flour is one of the major limiting factors in the popularization of pearl millet all over the world. In the present invest...
Chapter
Full-text available
Abiotic stresses such as drought, salinity, heat and cold, are greatly affecting the plant growth and agricultural productivity and causes more than 50% of worldwide yield loss of major crops every year. Many efforts have been made by researchers to mitigate these stresses and to increase crop productivity under unfavourable environments. Tradition...
Article
Wheat is an important cereal crop, which holds the second rank globally in terms of production after maize. However, its productivity is highly sensitive to heat stress, which is one of the most serious threats due to global warming. Therefore, development of heat tolerance variety of wheat through molecular breeding approach is an urgent need of t...
Article
Full-text available
Mitogen-activated protein kinase (MAPK) signaling cascade is highly conserved across the species triggering the self-adjustment of the cells by transmitting the external signals to the nucleus. The cascade consists of MAPK kinase kinases (MAPKKKs), MAPK kinases (MAPKKs) and MAPKs. These kinases are functionally interrelated through activation by se...
Book
Full-text available
This book entitled “Millets: The Orphan Crop for Uncertain Future” is intended to provide the readers especially students with a comprehensive knowledge of the various nutritional aspects of millets with special focus on the God’s Grain – the Pearl millet. While going through this book, the learners will get an insight of nutritional composition of...
Conference Paper
Full-text available
Abstract submitted to International e-conference on Genetics and Plant Breeding Research in Post COVID19 Era organized by Department of Genetics and Plant Breeding Chaudhary Charan Singh University (CCSU) Meerut — 250 004 (UP) India, June 13-14, 2020.
Article
Full-text available
Heat stress causes oxidative bursts damaging the organelles and nascent proteins. Plants have inherited antioxidant defense system to neutralize the effect of reactive oxygen species. Superoxide dismutase provides first line of defense against the HS by regulating the accumulation of peroxide radicals inside the cells. Here, we report identificatio...
Article
Full-text available
Globally, yellow mosaic disease (YMD) remains a major constraint of mungbean production, and management of this deadly disease is still the biggest challenge. Thus, finding ways to manage YMD including development of varieties possessing resistance against mungbean yellow mosaic virus (MYMV) and mungbean yellow mosaic India virus (MYMIV) is a resea...
Presentation
Full-text available
Article
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Tyrosine phosphorylation constitutes up to 5% of the total phophoproteome. However, only limited studies are available on protein tyrosine kinases (PTKs) that catalyze protein tyrosine phosphorylation in plants. In this study, domain analysis of the 27 annotated PTK genes in rice genome led to the identification of 18 PTKs with tyrosine kinase doma...
Presentation
Full-text available
The basic principle of SDS-PAGE has been explained for the MSc and PhD students.
Preprint
A gene that encodes for Heat Shock Factor (Hsf) was characterized and designated as TaHsf2 (Gen Bank ID KP063542) from wheat. The genomic sequence was found to be 1551bp long with open reading frame of length1123bp. The amino acid sequence so concluded showed to have HSF domain having high degree of similarity (homology) with other HSF coding gene...
Conference Paper
Full-text available
Poster presentation for thematic area “Abiotic Stress: Adaptations and Management” at the National Conference of Plant Physiology at Kerala Agricultural University, Thrissur, India from 19-21 December, 2019.
Chapter
There are several factors that cause loss of plant nutrient (macro and micro) from soil surface horizon. Plant nutrients from the soil are usually lost in different ways, among them big amounts are removed from the soil due to the harvest of crops, and weeds also remove a considerable quantity of plant nutrients from the soil. Leaching and erosion...
Article
Full-text available
During the last decade we have worked extensively on quantum computation in universe with special reference to biological organisms. We have given several hypotheses in the above mentioned area. This article presents an integrated perspective of our hypotheses presented during the last ten years.