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Introduction
Avinash Mishra currently works at the Marine Biotechnology and Ecology Research Area (CSMCRI), Central Salt and Marine Chemicals Research Institute. Avinash does research in Agricultural Plant Science, Biotechnology and Marine Biology. For details visit: http://avinaashmishra.webs.com/
Publications
Publications (162)
Halophytes have demonstrated their capability to thrive under extremely saline conditions and thus considered as one of the best germplasm for saline agriculture. Salinity is a worldwide problem, and the salt-affected areas are increasing day-by-day because of scanty rainfall, poor irrigation system, salt ingression, water contamination, and other...
Functional foods are nutritional compounds which also provide health and medicinal benefits. Daily food intake has much impact on the quality of life, and therefore inclusion of functional foods is now essential to our diet. Nutraceuticals are neither food nor drug but are added to food to provide extra nutritional and physiological properties. Tho...
Brown seaweeds have shown high potential of bioactivity and provide health benefits as an important functional food ingredient. Therefore, four abundantly growing tropical brown seaweeds—Iyengaria stellata, Spatoglossum asperum, Sargassum linearifolium, and Stoechospermum polypodioides—were collected from the Saurashtra Coast of the Arabian Sea. Th...
Salicornia brachiata is an extreme halophyte that commonly grows on marsh conditions and is also considered a promising resource for drought and salt-responsive genes. To unveil a glimpse of stress endurance by plants, it is of the utmost importance to develop an understanding of stress tolerance mechanisms. ‘Early Responsive to Dehydration’ (ERD)...
There has been an increase in human health concerns, and seaweeds are considered as a potential functional food which can decrease the risk of many diseases, as they contain various bioactive compounds. Seaweeds are of nutritional interest and a rich source of natural bioactive compounds including antioxidants, flavonoids, phenolic compounds, and a...
The present study aims to explore the potential of a plasma‐membrane localized PIP2‐type aquaporin protein sourced from the halophyte Salicornia brachiata to alleviate salinity and water deficit stress tolerance in a model plant through transgenic intervention. Transgenic plants overexpressing SbPIP2 gene showed improved physio‐biochemical paramete...
Seaweeds have proven to be nutrient-dense and are rich in antioxidants, like phenolics, flavonoids, and other essential metabolites that help to provide their medicinal benefits. Non-targeted metabolite profiling of the tropical green seaweed Acrosiphonia orientalis showed the presence of numerous groups of contents, including sugars, essential ami...
Understanding the mechanisms behind plant resilience to abiotic stresses is essential for enhancing crop yield and sustainability. This study integrates findings from a comprehensive investigation into the function of the SbPIP2 gene, which encodes an aquaporin protein, in improving the abiotic stress tolerance of transgenic plants. Our integrated...
In a few Southeast Asian nations, seaweeds have been a staple of the cuisine since prehistoric times. Seaweeds are currently becoming more and more popular around the world due to their superior nutritional value and medicinal properties. This is because of rising seaweed production on a global scale and substantial research on their composition an...
We are the editors of the recently launched research collection, “Genetically Modified (GM) and Genome-Edited (GE) Plants For Achieving Sustainable Agriculture ” The collection will publish articles in Frontiers in Sustainable Food Systems (IF 5.005, CiteScore 4.0). If you are interested in contributing a paper to Research Topic. please participate...
Foods enriched with nutritional compounds and biological activities, especially antioxidants, are considered healthier for human and/or animal consumption. Seaweeds are rich sources of biologically active metabolites and are used as functional foods. In this study, proximate compositions, physicobiochemical characteristics and oil oxidative stabili...
Rapid global modernization, urbanization, and industrialization have accelerated the release of heavy metals, causing soil pollution. These highly noxious environmental pollutants induce oxidative stress in plants via stimulation of the production of reactive oxygen species (ROS). Thioredoxin (Trxs) is a highly conserved disulfide reductase that pl...
Seaweeds are marine renewable, macrophytic plants and the only source of industrially important polysaccharides namely, agar, alginate and carrageenan. They are gaining importance worldwide for their valuable biochemical components useful in food and pharmaceutical industries. Advanced cultivation techniques developed for farming of economically im...
Salinity is a major abiotic stress that reduces agricultural production by impairing crop growth and development. Halophytes can complete their life cycle under high salinity conditions. In this study, primary metabolic pathways and metabolic marker were compared in three halophytes; Atriplex nummularia, A. griffithii and Salvadora persica. The pri...
Plant growth-promoting rhizobacteria provide endurance during environmental stress conditions. Previously, we have shown that the interaction of the halotolerant diazotrophic bacteria Brachybacterium saurashtrense JG06 induces physio-biochemical and molecular changes in Arachis hypogaea under nitrogen starvation conditions. Here we deciphered the r...
Bioactivities of polysaccharides derived from halophyte plants have gained attention in recent years. The use of biostimulants in agriculture is an innovative method of dealing with environmental stressors affecting plant growth and development. Here, we investigated the use of natural polysaccharides derived from the halophyte plant Lobularia mari...
Data science has been an invaluable part of the COVID-19 pandemic response with multiple applications, ranging from tracking viral evolution to understanding the vaccine effectiveness. Asymptomatic breakthrough infections have been a major problem in assessing vaccine effectiveness in populations globally. Serological discrimination of vaccine resp...
Gracilaria dura is the species of choice for commercial aquaculture and quality agarose production. The previous studies have confirmed that the differences in functional traits as well as agar characteristics among life-history stages can be utilised for commercial gains. To enhance our understanding regarding phase differentiation at molecular le...
Brightly fluorescent Carbon Dots (CDs) were synthesized by green hydrothermal method using commonly available biomass (Aloe vera) as carbon precursor. Their physiochemical and optical characterization was done by standard microscopic and spectroscopic techniques. Photophysical features of their aqueous dispersion were investigated in detail. Influe...
Seaweeds are being used as food items in Asian countries from ancient times. Seaweeds mainly grow in intertidal zone and survive extreme environmental conditions and thus have developed metabolites, which help them survive in such conditions. Red seaweeds have proven to be rich in compounds, which are antioxidant and having many other health benefi...
The present study aimed at the development of a groundnut-based dehydrated paneer type product which could serve as an instant vegan protein source. In the process of preparing groundnut paneer, a ratio of 1:5 of groundnut to water and 2.0% calcium chloride (CaCl2) solution was used for the preparation of groundnut paneer and the product was evalua...
The frequency and severity of extreme climatic conditions such as drought, salinity, cold, and heat are increasing due to climate change. Moreover, in the field, plants are affected by multiple abiotic stresses simultaneously or sequentially. Thus, it is imperative to compare the effects of stress combinations on crop plants relative to individual...
Metallothioneins are cysteine-rich proteins, which play key roles in metal detoxification, intracellular ion homeostasis maintenance, and protection against intracellular oxidative damage. This study reports the characterization of SbMT-2cloned from Salicornia brachiata concerning physiology, molecular, and photosynthesis efficiency. Overexpression...
Plant-microbe interactions are widely accepted, steady, and native methods used against different environmental stress conditions. In this study, peanut plants grown under control (with N2) and stressed (N2 deficit) conditions with or without the bacterium Brachybacterium saurashtrense were assessed for different physio-biochemical activities and d...
Stenotrophomonas maltophilia has plant growth-promoting potential, and interaction with Arachis hypogaea changes host-plant physiology, biochemistry, and metabolomics, which provides tolerance under the N2 starvation conditions. About 226 suppression subtractive hybridization clones were obtained from plant-microbe interaction, of which, about 62%...
A potent cold and drought regulatory‐protein encoding gene, SbCDR was cloned from an extreme halophyte Salicornia brachiata. In vitro localisation study, performed with SbCDR::RFP gene‐construct revealed that SbCDR is a membrane protein. Overexpression of the SbCDR gene in tobacco plants confirmed tolerance against major environmental constraints s...
To understand the spread of SARS-CoV2, in August and September 2020, the Council of Scientific and Industrial Research (India), conducted a sero-survey across its constituent laboratories and centers across India. Of 10,427 volunteers, 1058 (10.14%) tested positive for SARS CoV2 anti-nucleocapsid (anti-NC) antibodies; 95% of which had surrogate neu...
In a previous study, we identified a halotolerant rhizobacterium belonging to the genus Klebsiella (MBE02) that
protected peanut seeds from Aspergillus flavus infection. Here, we investigated the mechanisms underlying the
effect of MBE02 against A. flavus via untargeted metabolite profiling of peanut seeds treated with MBE02,
A. flavus, or MBE02+A....
Halophytic plants can adapt to grow and thrive in highly saline conditions. Suaeda species are annual halophytes with high salt tolerance and are most suitable in the restoration of salinized or contaminated saline land and as food, forage, medicine, and bioenergy. In this study, we comprehensively analyzed the different metabolic responses of Suae...
Water is a vital resource for plants to grow, thrive and complete their life cycle. In recent years, drastic changes in the climate, especially drought frequency and severity, have increased, which reduces agricultural productivity worldwide. Aquaporins are membrane channels belonging to the Major Intrinsic Protein (MIP) superfamily, which play an...
Soon after discovery, immense work has been carried out on biochemical characterization and functional validation of plant sodium–proton (Na⁺/H⁺) antiporters (NHXs). NHXs are integral membrane proteins localized at the various membranes of a plant cell, including endomembrane compartments and plasma membrane. Transgenic model and crop plants, overe...
A novel colloidal system comprising choline oleate in deep eutectic solvent (DES: choline chloride–ethylene glycol) is developed and utilized for in situ generation and stabilization of nanosized (1 to 3 nm) N-doped oxygenated, crystalline CDs via dissolution of gelatin. Self-assembly of choline oleate in DES has been characterized using surface te...
Arachis hypogaea (Peanut) is one of the most important cash crops grown for food and oil production. Salinity is a major constraint for loss of peanut productivity, and halotolerant plant growth promoting bacteria not only enhance plant-growth but also provide tolerance against salt stress. The potential of halotolerant bacterium Stenotrophomonas m...
Seaweeds are considered a promising functional food and safe for human consumption as they have significant health benefits. Five abundant tropical seaweeds, Caulerpa racemosa var. macrophysa, Caulerpa scalpelliformis, Grateloupia indica, Sargassum linearifolium, and Spatoglossum asperum rich in metabolites, phenolic, and flavonoid compounds, were...
Seaweeds, also referred to as macroalgae, possess various applications including pharmaceuticals and foods. They are considered potential candidates for nutraceutical applications as a functional food. They commonly grow in an extreme condition of the ocean at intertidal zones and encounter various environmental stresses during their life‐cycle. Th...
Red seaweed genus Gracilaria is fast replacing Gelidium in global agar trade. Recently, Gracilaria dura from Indian waters has emerged as species of choice due to its quality agarose. Triphasic life cycle provides opportunity for selecting elite cultivar. We hereby reported diversity pertaining to functional traits over three months viz. January, F...
A pyruvate-phosphate dikinase (C4-PPDK) gene was cloned from Suaeda monoica, which had a single-cell C4 photosynthesis pathway without Kranz anatomy and was functionally validated in a C3 model plant under different abiotic stress conditions in an ambient and elevated CO2 environment. Overexpression of SmPPDK promoted growth of C3 transgenic plants...
Background:
Developing fruit is considered as an excellent model to study the complex network of metabolites which are altered rapidly during development.
Results:
Metabolomics revealed that developing psyllium fruit is a rich source of primary metabolites (ω-3 and ω-6 fatty acids and amino-acids), secondary metabolites and natural antioxidants....
Alteration in atmospheric carbon dioxide concentration and other environmental factors are the significant cues of global climate change. Environmental factors affect the most fundamental biological process including photosynthesis and different metabolic pathways. The feeding of the rapidly growing world population is another challenge which impos...
There is an urgent need to develop quality crop with improved productivity and wider tolerance to the environmental (biotic and abiotic) stresses for addressing different issues including global water crisis, food security, and climate change effect on agriculture. Traditional lengthy procedures for crop improvement including classical breeding and...
Seaweeds are a rich source of metabolites, including polyphenols, flavonoid, and amino acids, and have been used as food or food supplements in Asian countries since ancient times. Different metabolites are being reported from seaweeds worldwide, but there has been little reported, so far, on tropical seaweeds of the Arabian Sea coast. Eighteen abu...
Environmental abiotic stresses including salinity, drought, temperature, and elevated CO2 lead to adverse effects on photosynthesis and crop productivity. Photosynthesis is a prominent biological process, which converts atmospheric CO2 into an organic compound. There are three different methods of carbon assimilation, and based on which, plants are...
Arachis hypogea (Peanut) is one of the most important crops, and it is harvested and used for food and oil production. Being a legume crop, the fixation of atmospheric nitrogen is achieved through symbiotic association. Nitrogen deficiency is one of the major constrains for loss of crop productivity. The bacterium Stenotrophomonas maltophilia is kn...
Soil salinity is a serious threat to sustainable agriculture, and a number of research are going on to improve saline-resistant crops by using various breeding methods and genetic engineering tools. These methods are time-consuming, often face yield penalties, and many other ethical issues. There is a need to explore other more stable, environmenta...
Bacterial cell-to-cell communication promotes biofilm formation and can potentially lead to multidrug resistance development. Quorum sensing inhibition (QSI) is an effective and widely employed strategy against biofilm formation. The extract from Exiguobacterium indicum SJ16, a gram-positive bacterium, isolated from the rhizosphere of Cyperus laevi...
Recent research has focused on the production of biofuel from different bio-resources, especially non-edible and underutilized plants. In this study, total lipid contents and fatty acids composition were evaluated both qualitatively and quantitatively for twelve abundant halophytes to ascertain their potential as feedstock for renewable energy. Non...
In recent years, marine organisms including seaweeds have been highlighted as potential sources of useful metabolites and bioactive compounds, with vast biological and physiological activities. Seaweeds have long been used as a food source, for medicinal purposes, and as dietary supplements in various Asian countries, and their potential benefits h...
Polysaccharides extracted from seeds and husk of psyllium were characterized for different physicochemical characteristics, and bioactivities. Extracted polysaccharides are comprised of D-xylose, L-arabinose, D-glucose, D-galactose, and L-rhamnose. Crude husk-polysaccharide was crystalline, whereas rest was amorphous in nature. Husk-polysaccharide...
The present study revealed the spatial variability of bacteria in relation to physicochemical variations at four different locations (Diu - DIU, Veraval - VER, Porbandar - POR and Okha - OKH) along the Gujarat coast (Arabian Sea, India). The natural habitat was analyzed for temperature, salinity, pH, total dissolved solids, total organic content, t...
This book contains 22 chapters covering topics on the ecophysiology, mechanisms of adaptation to climate change and practical uses of halophytes.
Salinity is one of the major abiotic stresses which affect plant growth and productivity by imposing dual stress, ionic and osmotic stress, on plants. Halophytes which are adapted to complete their life cycle in saline soil keep the transcript expression of stress-responsive genes constitutively higher in the optimum growth environments, which can...
Nutraceuticals are an important ingredient of functional foods that provide health and medicinal benefits, and are recommended for daily food intake. Seaweeds are highly nutritional and considered a rich source of antioxidants, sugars, fatty acids, essential amino acids, flavonoids, phenolics, and other secondary metabolites. Green seaweeds are dis...
The human body harbors substantial microbial richness represented by both commensals and pathogens, which can be explained by different microbiomes such as mouth, gut, vagina, and skin. The host-microbiome cross talk support the delicate balance between microbiota composition and immunological response for maintaining the healthy state of individua...
Psyllium leaves polysaccharides were physicochemically characterized and evaluated for antioxidant, free-radical scavenging and anticancer activities. The polysaccharide comprised of arabinose, rhamnose, xylose, galactose, and glucose. FTIR and NMR study exhibited the presence of key functional groups whereas morphological study revealed that crude...
Seaweeds, commonly known as marine macro algae, are divided into three groups, Phaeophyceae, Rhodophyceae, and Chlorophyceae, which are brown, red, and green algae, respectively. Seaweeds are a rich source of structurally diverse secondary metabolites. Metabolites are biochemical end products of gene activity and so provide a functional snapshot of...
Bacterial secondary metabolites possess a wide range of biologically active compounds including antibacterial and antioxidants. In this study, a Gram-positive novel marine Actinobacteria was isolated from sea sediment which showed 84% 16S rRNA gene sequence (KT588655) similarity with Streptomyces variabilis (EU841661) and designated as Streptomyces...
The C4 halophytic species Suaeda monoica and S. fruticosa, possess the C4 photosynthesis pathway without Kranz anatomy were grown at ambient (470ppm CO2) and elevated (850ppm CO2) atmospheric CO2 under control containment facility to study the plant response under CO2 stress condition. The relative growth of both Suaeda species was enhanced with at...
Multidrug-resistance bacteria commonly use cell-to-cell communication that leads to biofilm formation as one of the mechanisms for developing resistance. Quorum sensing inhibition (QSI) is an effective approach for the prevention of biofilm formation. A Gram-negative bacterium, Delftia tsuruhatensis SJ01, was isolated from the rhizosphere of a spec...
Effect of extract of D. tsuruhatensis SJ01 extract on planktonic cell growth of P. aeruginosa. Different concentration of bacterial extracts (SJ01; 0.01−0.1 mg/ml) was tested against biofilm forming reference strain P. aeruginosa PAO1 and pathogenic strain P. aeruginosa PAH. Tests without extract and with methanol were considered as control and neg...
Antibacterial disc diffusion assay of D. tsuruhatensis SJ01 against P. aeruginosa. Clinical isolates of P. aeruginosa PAO1 and PAH were tested for antibacterial activity of D. tsuruhatensis SJ01 extract. The bacterial extract did not show any antibacterial activity against the clinical isolates P. aeruginosa.
Total transcripts that differentially expressed (up- or down- regulated) in P. aeruginosa PAO1, treated with bacterial (D. tsuruhatensis SJ01) active fraction (C18-100; containing 1,2-benzenedicarboxylic acid, diisooctyl ester) compared with control (untreated PAO1 strain). Array-Express accession E-MTAB-5693.
Whole cell fatty acid profiling of the bacterium D. tsuruhatensis SJ01. The whole cell fatty acid profile of strain SJ01 was performed by GC coupled with MIDI. The name of the fatty acids was assigned on the basis of corresponding fatty acids of RTSBA6 6.10 library match.
Phylogenetic position of D. tsuruhatensis SJ01 (KX130769) with taxonomic neighbors. Numbers at nodes are percentage bootstrap values. The phylogenetic tress was computed using the maximum composite likelihood method and are in the units of the number of base substitutions per site. All positions containing gaps and missing data were eliminated by t...
An obligate halophyte, Salicornia brachiata grows in salt marshes and is considered to be a potential resource of salt- and drought-responsive genes. It is important to develop an understanding of the mechanisms behind enhanced salt tolerance. To increase this understanding, a novel SbSRP gene was cloned, characterized, over-expressed, and function...
Scientific Reports 6 : Article number: 31686 10.1038/srep31686 ; published online: 23 August 2016 ; updated: 10 November 2016 . This Article contains typographical errors.
A salt- and drought-responsive novel gene SbSDR1 is predominantly localised to the nucleus, up-regulated under abiotic stresses and is involved in the regulation of metabolic processes. SbSDR1 showed DNA-binding activity to genomic DNA, microarray analysis revealed the upregulation of host stress-responsive genes and the results suggest that SbSDR1...
Cumin is an annual, herbaceous, medicinal, aromatic, spice glycophyte that contains diverse applications as a food and flavoring additive, and therapeutic agents. An efficient, less time consuming, Agrobacterium-mediated, a tissue culture-independent in planta genetic transformation method was established for the first time using cumin seeds. The S...