Ajay Kumar

Ajay Kumar
Agriculture Research Organization Volcani Center Israel

PhD

About

178
Publications
139,440
Reads
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1,878
Citations
Additional affiliations
January 2010 - December 2015
Banaras Hindu University
Position
  • Researcher
January 2010 - December 2015
Banaras Hindu University
Position
  • Researcher

Publications

Publications (178)
Article
Citrus fruit are highly susceptible to infection by several fungal pathogens during postharvest storage. Therefore, harvested citrus fruit receive a series of treatments in the packhouse such as initial drenching, washing and disinfection, immersion in heated solutions of chemical fungicides and waxing that also include fungicides to reduce the ino...
Article
Full-text available
Microbial communities associated with fruit can contribute to quality and pathogen resistance, but little is known about their assembly and dynamics during fruit development and storage. Three apple cultivars growing under the same environmental conditions were utilized to examine the apple carposphere microbiome composition and structure at differ...
Chapter
Full-text available
This chapter covers cytological observations on intracellular microbes in plants, their roles in sustainable crop production and effects of elevated carbon dioxide on rhizophagy in roots.
Article
Full-text available
In this study, five endophytic bacterial strains, namely Rhizobium pusense (MS-1), Bacillus cereus MS-2, Bacillus flexus (MS-3), Methylophilus flavus (MS-4), and Pseudomonas aeruginosa (MS-5), were used to investigate their potential role in the enhancement of growth yields of two types of tomato varieties, viz. hybrid and local, and in the biosynt...
Book
Agricultural Nanobiotechnology: Biogenic Nanoparticles, Nanofertilizers and Nanoscale Biocontrol Agents presents the most up-to-date advances in nanotechnology to improve the agriculture and food industry with novel nanotools for the controlling of rapid disease diagnostic and enhancement of the capacity of plants to absorb nutrients and resist env...
Book
Relationship Between Microbes and Environment for Sustainable Ecosystem Services, Volume One: Microbial Products for Sustainable Ecosystem Services promotes advances in sustainable solutions, value-added products, and fundamental research in microbes and the environment. Topics include advanced and recent discoveries in the use of microbes for sust...
Chapter
Drugs produced by plants and herbal medicines have been used since ancient times to treat human and animal diseases, and at present several countries still rely on herbs and plants as the main sources of drugs. Plants are also considered as biofactories for the production of phytochemicals. Phytomedicines have emerged as cost-effective, eco-friendl...
Book
Agricultural Nanobiotechnology: Biogenic Nanoparticles, Nanofertilizers and Nanoscale Biocontrol Agents presents the most up-to-date advances in nanotechnology to improve the agriculture and food industry with novel nanotools for the controlling of rapid disease diagnostic and enhancement of the capacity of plants to absorb nutrients and resist env...
Chapter
Crop plants can be severely affected by various types of abiotic stress, including stress resulting from salinity and water deficit (drought). Certain bacteria associated with plants can stimulate tolerance to these types of stress through various beneficial mechanisms such as the production of the enzyme 1-aminocyclopropane-1-carboxylic acid (ACC)...
Book
Full-text available
This first volume of a two-volume work presents the manifold applications of beneficial microbes and microbiomes in plant growth promotion, in enhancing crop resilience and in control of phytopathogens through microbial antagonists. In-depth insights into latest technologies such as biopriming of seeds and soil inoculation of rhizosphere microorgan...
Chapter
Full-text available
The sessile feature of plants makes them frequently countered by unavoidable stress factors to which they need to confront and adjust themselves at the earliest. Stress response in plants is mediated by series of intricate and sophisticated mechanisms from timely perception, signaling and differential gene expression to a physiological response oft...
Book
Full-text available
The microbial ecosystem provides an indigenous system for improving plant growth, health and stress resilience. Plant microbiota, including isolated microbial communities, have been studied to further understand the functional capacities, ecological structure and dynamics of the plant-microbe interaction. Due to climatic changes, there is an urgent...
Book
Sustainable Horticulture: Microbial Inoculants and Stress Interaction gives insights into the applications and formulations of microbial inoculants. In recent years, the optimum yields of horticultural plants largely influenced by rising global temperature, biotic stress (attack of pathogens) and abiotic stresses has created extra pressure for the...
Article
Full-text available
In the present study, different microalgae were isolated from wastewater environment and evaluated for higher growth and lipid accumulation. The growth adaptability of all the isolated microalgae were tested for carbon source with supplementation of sodium bicarbonate in BG-11 N + medium. Further based on the uptake rate of sodium bicarbonate and g...
Article
Full-text available
The world has faced the challenges of Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) for the last two years, first diagnosed at the end of 2019 in Wuhan and widely distributed worldwide. As a result, the WHO has proclaimed the illness brought on by this virus to be a global pandemic. To combat COVID-19, researcher communities continuo...
Article
Full-text available
Proline-rich extensin-like receptor kinases (PERKs) are a class of receptor kinases implicated in multiple cellular processes in plants. However, there is a lack of information on the PERK gene family in wheat. Therefore, we identified 37 PERK genes in wheat to understand their role in various developmental processes and stress conditions. Phylogen...
Article
Full-text available
In the present study, eight endophytic bacterial strains, namely Bacillus licheniformis R1, Bacillus sp. R2, Agrobacterium tumefaciens R6, uncultured bacterium R11, Bacillus subtilis RS3, Bacillus subtilis RS6, uncultured bacterium RS8 and Lysinibacillus fusiformis RS9, were isolated from the root of Momordica charantia L. All the strains, except R...
Book
Microbiome Under Changing Climate: Implications and Solutions presents the latest biotechnological interventions for the judicious use of microbes to ensure optimal agricultural yield. Summarizing aspects of vulnerability, adaptation and amelioration of climate impact, this book provides an important resource for understanding microbes, plants and...
Book
This second volume of a two-volume work reviews beneficial bioactive compounds from various microorganisms such as bacteria, fungi, cyanobacteria in plant diseases management and the postharvest management of fruits using microbial antagonists. Furthermore, it reviews the impact of climate change on food security and addressed the legal aspects of...
Chapter
Full-text available
High irradiance and fluctuating light boons substantial risk to photosynthetic life forms by summoning responsive oxygen species (ROS). To bear the high irradiance level, plants, algae, and cyanobacteria have developed mechanisms to diminution the energy hitting at reaction centers to protect it from high irradiance by a photo-defensive system. In...
Chapter
Cyanobacterial genetic manipulations are optimistic for producing feedstocks, fuels, valuable chemicals, and a basic understanding of stress-induced responses. Regrettably, the newly available genome manipulation tools for cyanobacteria are far from other organisms despite their significant contributions to humanity. This chapter primarily focused...
Chapter
Postharvest losses of food crops are vital components of agriculture commodities. The role of plant microbiota in relation to plant growth and development has been myriad. Also, slowly and steadily the potential role of microbiota has been unraveled in reducing postharvest losses to solve the main issue of food loss economically. The healthy relati...
Chapter
Agricultural sector has been facing many challenges for the past two decades majorly due to rise in population that subsequently resulted in higher demand for food while drastic alterations in environmental conditions also led to a decrease in agricultural productivity. Thus, new avenues are being investigated in order to enhance crop yield and inc...
Chapter
Plant tissue culture comprises all the ways to nurture the plant cell, tissue, or organ in a specific manner under an artificially created environment to produce uniform planting material in bulk. It also covers the ways by which one can improve the traits of the plant. Plant production outside the laboratory environment can be achieved through see...
Article
Full-text available
Tuberculosis (TB) is a recurrent and progressive disease, with high mortality rates worldwide. The drug-resistance phenomenon of Mycobacterium tuberculosis is a major obstruction of allelopathy treatment. An adverse side effect of allelopathic treatment is that it causes serious health complications. The search for suitable alternatives of conventi...
Chapter
Full-text available
In the current scenario of climate change, the uncertainty of environmental factors and adverse impacts of chemical pesticides on the texture and productivity of soil along with increasing health concerns to humans appear as a global challenge in the management of agricultural yield to meet the food demand of burgeoning global populations. However,...
Book
Biocontrol Mechanisms of Endophytic Microorganisms introduces endophytic microorganisms, colonization, diversity and distribution, describes the isolation and identification of endophytic microorganisms by traditional cultivation and by next generation sequencing technologies, and covers biocontrol mechanisms, bacterial priming, endophytic based me...
Article
Plant natural products or secondary metabolites have gained significant attention globally because of discoveries of semi-synthetic drugs novel bioactive compounds. Currently, a large part of global population relies on natural products to cure ailments and even chronic diseases and to enhance their immune system. Interestingly, the commonly used d...
Chapter
Modern techniques such as recombinant DNA (rDNA) technology and genetic engineering under microbial biotechnology discipline have created enormous commercial possibilities and led to the policymakers to consider genetically engineered microorganisms and related products to be patentable. Though a large number of patents on inventions in microbial b...
Book
Cyanobacterial Lifestyle and its Applications in Biotechnology discusses the different aspects of cyanobacteria, with an aim of helping readers better understand advanced cyanobacterial molecular biology aspects that will allow us to uncover the potential of cyanobacteria in the tailoring of stress smart crops for sustainable agriculture. Chapters...
Article
Full-text available
Recently, increasing focus has been placed on exploring fruit microbiomes and their association with their hosts. Investigation of the fruit surface microbiome of apple has revealed variations in the composition and structure depending on management practices, phenological stages, and spatial distribution on the fruit itself. However, the fate of t...
Chapter
Continuously increasing human population has compelled us to look for better crop production alternatives due to enhanced land pressure. This demand was compensated by exploiting high-yielding varieties; however, these require more macro-and micronutrients. This requirement was managed in modern agriculture practices through the significant input o...
Preprint
Full-text available
In the current scenario of changing climatic conditions and rising global population, there is always a need to explore novel, efficient, and economical natural products for the benefit of human kind. Biosurfactant is one of the latest explored microbial biomolecules that have been used in numerous fields, including agriculture, pharmaceuticals, co...
Article
Full-text available
In the current scenario of changing climatic conditions and the rising global population, there is an urgent need to explore novel, efficient, and economical natural products for the benefit of humankind. Biosurfactants are one of the latest explored microbial synthesized biomolecules that have been used in numerous fields, including agriculture, p...
Chapter
Plants are home to a diverse range of microbial communities. These microbes are present either on the epiphytic regions or inside the plant tissue as endophytes and play an integral role in growth promotion, phytopathogen control, and the management of various biotic and abiotic stresses. In this chapter, we summarized the diversity pattern of endo...
Chapter
Currently postharvest loss of food commodities is a global challenge and it has been estimated that nearly 30%–50% of the fresh products were lost during the postharvest storage due to pathogenic attack, improper storage, transportation, or packaging. The pathogenic attack during postharvest storage is considered as the prime factor for postharv...
Article
Full-text available
Endophytic microorganisms present inside the host plant play an essential role in host fitness, nutrient supply and stress tolerance. Endophytes are often used in sustainable agriculture as biofertilizers, biopesticides and as inoculants to mitigate abiotic stresses including salinity, drought, cold and pH variation in the soil. In changing climati...
Preprint
Genetic transformation involving the manipulation of the plant's cellular DNA through recombinant DNA techniques is an effective method for crop improvement. Plant cellular genome could be modified genetically through different biological, physical and chemical approaches and the transformation process is complemented by in vitro plant tissue cultu...
Book
Microbial Management of Plant Stresses: Current Trends, Application and Challenges explores plant microbiota including isolated microbial communities that have been used to study the functional capacities, ecological structure and dynamics of the plant-microbe interaction with focus on agricultural crops. Presenting multiple examples and evidence o...
Chapter
Fungal symbionts are the category of endophytes residing in plants. In recent decades, endophytes have been well researched and documented for their beneficial role to mitigate plant abiotic stress, including drought, heat, flooding, salt stress, cold, oxidative stress, depletion in nutrients, pollutants, etc. (which depletes crop production). Fung...
Chapter
The degradation and destruction caused to our natural resources by the injudicious use of ecosystem services are rooted deep into the soil. Soil performs a wide diversity of functions those are essential for supporting and maintaining life forms on earth. Those vital functions include buffering and filtering fatal chemicals, contaminants and transf...
Book
Waste Management policies and practices in BRICS Nation explores recent developments in waste management. BRICS nations are the emerging economy of the world. Increasing population, urbanization, industrialization and uses of chemical fertilizer and pesticide in agriculture for enhanced productivity of food, especially in India and China, to suppor...
Chapter
Full-text available
High irradiance and fluctuating light boons substantial risk to photosynthetic life forms by summoning responsive oxygen species (ROS). To bear the high irradiance level, plants, algae, and cyanobacteria have developed mechanisms to diminution the energy hitting at reaction centers to protect it from high irradiance by a photo-defensive system. In...
Book
Volatiles and Metabolites of Microbes compiles the latest research and advancement in the field of volatiles, metabolites synthesized from the microbial strains such as actinomycetes, bacteria, cyanobacteria, and fungal species and their potential applications in the field of healthcare issue and sustainable agriculture. There is an urgent need to...
Book
Sustainable Environmental Clean-up: Green Remediation includes some natural, clean, and eco-sustainable technologies that have undergone the process of gradual development in past few decades. These technologies include a range of innovative natural and viable materials and offer a clean solution of environmental pollution. It includes case studies...
Article
Plant-associated microbial communities form complex co-associations that play a role in promoting plant productivity and health, although the underlying mechanisms have not been fully elucidated. The functional role of the microbiome provides a new perspective on how we can potentially utilize the microbiome to maintain the postharvest quality and...
Preprint
Full-text available
The degradation and destruction caused to our natural resources by the injudicious use of ecosystem services are rooted deep into the soil. Soil performs a wide diversity of functions those are essential for supporting and maintaining life forms on earth. Those vital functions include buffering and filtering fatal chemicals, contaminants and transf...
Chapter
Plant tissue culture or micropropagation, in an agriculture industry, is a practice which can be divided into two major categories. First is, through micropropagation plant production at large scale can be achieved and the second is, micropropagation is a pre-requisite for biotechnological interventions-mediated crop improvement in agriculture. Mor...
Article
The applications of enzymes have reached an increasing prominence in the scenario of biocatalysis, stimulated mainly by advances in biotechnological processes to obtain products of high added value. The justification for this is the relevant growth of industrial activities that promote the production of various organic contaminants. Thus, enzymes o...
Article
Full-text available
We present the first worldwide study on the apple (Malus × domestica) fruit microbiome that examines questions regarding the composition and the assembly of microbial communities on and in apple fruit. Results revealed that the composition and structure of the fungal and bacterial communities associated with apple fruit vary and are highly dependen...
Chapter
Currently, numerous physical and chemical techniques are used to address the issue of contaminant degradation, but they can lead to various environmental problems due to persistent degradation products or their side effects. However, a range of biological processes has been used for the degradation of environmental pollutants or xenobiotic compound...
Chapter
Myriad enzymes from various microorganisms (such as bacteria and fungi) have been studied for their potential role in the biodegradation of organic waste, which is generally synthesized in the form of surface-active compounds (SACs) called biosurfactants. Employing microbial biosurfactants/enzymes is an eco-friendly and cost-effective biotechnology...
Chapter
Rapid upsurge in the discipline of nanoscience and technology has led to emergence of myriads of nanoparticles. Apart from substantial application in medicine, textile, food science, and environmental technology, nanoparticles have received considerable application and immense opportunities in agricultural practices. Given the inherent potential, n...
Preprint
Full-text available
Background: Apple is one of the most highly consumed fruits worldwide and is the largest fruit crop produced in temperate regions. Fruit quality, safety and long-term storage are issues that are important to growers, distributors, and consumers. We present the first worldwide study on the apple fruit microbiome that examines questions regarding the...
Chapter
Each plant has a microbiome that is consisted of epiphytic and endophytic microbial communities. The plant microbiome may play a prominent role in different functions such as growth, disease, suppressing pathogens and potential influence of the physiology of reproductive plant organs (e.g., fruit). Endophytic microbiomes of any plant organs have mu...
Chapter
Full-text available
The microarray is an excellent platform for the understanding of complex regulatory as well as functional mechanisms operating in various cellular processes and, hence, microarray significantly contributing to human welfare. However, voluminous data generated following to microarray, requiring a series of consecutive-analyses to extract useful info...
Book
Full-text available
This book presents a collection of cross-disciplinary research, with contributions addressing all key features of the plant/microbe/ENP nexus in agro-ecosystems. The uptake, transport and transformation of nanoparticles in plants have attracted more and more attention in the past several years. Especially, the impact of Engineered Nanoparticles (EN...
Chapter
Worldwide, huge amount of food commodity losses are reported annually due to plant diseases caused by various kinds of pests or pathogens. The continuous and indiscriminate use of chemical pesticides to control plant diseases is known to adversely affect the natural environment, plant and soil ecology as well as the human health by toxic chemical r...
Chapter
New “genetically modified” technologies were introduced with a promise of solution to increased food production via sustainable approach. However, besides raising various environmental, ethical, and social concerns, today, GM technologies are being promoted by multinational business corporations, who are privatizing the world's food chain and prote...
Chapter
Full-text available
Global warming due to climate change, adverse climatic conditions, and increasing attack of insect/pests has strongly impacted the growth, development, and reproduction of major horticultural crops that have posed a significant threat to global food and nutritional security. In this challenging scenario, advanced conventional breeding approaches ar...
Chapter
The enormous release of untreated sewage wastewater (330 km³) and sludge containing contaminants like antibiotics, antibiotic resistance genes, heavy metals, metalloids, personal care products, infectious microorganisms including coliforms and hormones into agroecosystem has been documented to pose severe risks to food chain and crop productivity....
Chapter
Rapid rise in pharmaceutical industries during past decades in order to cure challenging human diseases has released considerable amounts of antibiotics in natural ecosystem including soil and aquatic ecosystem. The presence of antibiotics beyond the acceptable limits in agro-ecosystems entering through different sources like wastewater irrigation...
Book
Full-text available
Policy Issues in Genetically Modified Crops: A Global Perspective contains both theoretical and empirical evidence of a broad range of aspects of GM crop policies throughout the world. Emphasizing world agriculture production and ethics of GM crops, the book balances insights into the various discussions around the use of GM crops including soil he...
Book
Full-text available
Microbe Mediated Remediation of Environmental Contaminants presents recent scientific progress in applying microbes for environmental management. The book explores the current existing practical applications and provides information to help readers develop new practices and applications. Edited by recognized leaders in the field, this penetrating a...