
Kumanand TayungGauhati University | G.U. · Department of Botany
Kumanand Tayung
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Publications
Publications (73)
The study aims to investigate plant growth promotion (PGP) activities of thermophilic bacteria isolated from the Jakrem hot spring in Meghalaya, North-East India, and determine their effect on Brassica juncea's growth. The bacteria were isolated by a culture-dependent approach following a serial dilution method in a nutrient agar medium. All the is...
Alternanthera sessilis and Alternanthera paronychioides are 2 common herbaceous plants in the North Eastern region of India. The 2 species are known traditionally for edibility and medicinal use. The objectives are to qualitatively screen phytochemicals and test for antioxidant activity and antimicrobial activity between the 2 species– Alternanther...
Endolichenic fungi (ELF) are diverse microbial symbionts that live asymptomatically within lichen thalli. In this study, ELF was investigated from three medicinal lichen hosts namely Cryptothecia scripta, Parmotrema tinctorum, and Dirinnaria applanata from Tippi, Dahung and Dirang. Variations in the occurrence of isolates amongst the sites were det...
The genus Antidesma L. (Phyllanthaceae) consists of 102 species and is distributed throughout the subtropical,
temperate, and subpolar regions. Numerous species in this genus are employed in ethnomedical practices to treat
a range of ailments including anaemia, diabetes, herpes, skin infections, typhoid, throat and lung diseases,
gastrointestinal,...
Bacterial strains were isolated from undisturbed regions of Sikkim Himalaya for the production of highly active xylanase and xylooligosaccharides (XOS). Seven bacterial isolates showed xylanase production while fermenting beechwood xylan (BX) and the agrowastes corncob (CC), rice straw (RS), and sugarcane bagasse (SB). Bacillus altitudinis XYL17, i...
Background: This research aimed to assess the antifungal potential of oil and organic leaf extracts obtained from Ocimum gratissimum, Kopsia fruticosa and Hibiscus rosa-sinensis against fungal pathogens affecting solanaceous crops. Methods: Oil of O. gratissimum was obtained by hydro-distilled method using Clevenger apparatus. Leaf extracts of K. f...
A study was carried out to evaluate the potential of lignocellulolytic fungi isolated from leaf litter for the hydrolysis of sugarcane bagasse (SCB). Eighteen isolates showed the ability to produce carboxymethylcellulase (CMCase), xylanase, and laccase in primary screening, of which ten isolates were selected as potent lignocellulolytic agents for...
Cabbage is being cultivated from ancient times and is a rich source of vitamins
and minerals. Diseases of the vegetable crops cause serious loss in the economy.
Cabbage diseases are chief limiting factors in its profitable commercial
cultivation. The cultivars of cabbage are very much susceptible to pathogen
attack which is a great threat to profit...
Mangroves are woody plants found growing at transition zones between land and sea in tropic and sub-tropical regions. They arehighly adapted morphologically and physiologically to survive in extreme environments. Mangroves are found worldwide in theirdistribution, with 110 species that belong to 20 different families. In India, mangrove forests are...
The present investigation was carried out to expound on the role of seed borne endophytic fungi isolated from native rice cultivars of North East India. Altogether 226 fungal isolates were obtained from the surface sterilized seeds of the 10 selected rice cultivars. The major isolates were species of Curvularia, Aspergillus,
Fusarium, Gliocladium,...
Even though modern medicinal system is well developed and easily accessible, the rural people still continues to depend upon traditional medicinal system for curing various ailments. Several cases of fast recovery and many cases of death due to wrong treatment was observed during the year 2018-19 in rural villages of Nagaon district of Assam, India...
Seed-borne endophytic fungi benefit the host by producing substances that stimulate plant growth, enhanced resistance to biotic and abiotic stresses. Senna alata, a common invasive plant of India, proliferates rapidly and thrives in all inhospitable climatic conditions. It is speculated that invasiveness of this species might be due to associated e...
Lignocellulose wastes are generated in huge amounts by various sectors like agriculture, forestry, and industry but only a small portion of these wastes are utilized and a major portion is left unused. In this study, seven different lignocellulosic wastes and their combinations in different percentages were determined for the growth and yield of Pl...
Endophytic fungi have been frequently detected in various plant species, but an understanding of the characteristics and biological properties of endophytic fungi of Capsicum annuum L. seeds has not yet been carried out. The present work was designed to isolate the endophytic fungi associated with the seeds of C. annuum L. and a preliminary assessm...
Herein, Seventy three (73) anticancer metabolites from different endolichenic fungi which are reported previously, were analyzed for drug likeliness and pharmacokinetic properties using SwissADME, ADMETlab, and admetSAR. The desirable compounds were studied using molecular docking against three clinically important human kinases: pyruvate kinase is...
A new species, Volvariella bilobata, has been described herein from West Bengal, India. Field photographs of the basidiocarps were provided and the new species were compared with its allied taxa based on morphological and molecular (nrITS sequence) data. Volvariella bilobata was characterized by a medium sized, entirely greyish brown pileus with fi...
Citation: Mohanta, Y.K.; Nayak, D.; Mishra, A.K.; Chakrabartty, I.; Ray, M.K.; Mohanta, T.K.; Tayung, K.; Rajaganesh, R.; Vasanthakumaran, M.; Muthupandian, S.; et al. Green Synthesis of Endolichenic Fungi
Endophytic fungi associated with healthy leaf tissues of Cymbidium aloifolium was investigated for their anti-microbial and indole acetic acid (IAA) production potential. Altogether, 39 endophytic fungal isolates were obtained from the 150 surfaced sterilized inoculated leaf fragments. The dominant endophytic fungal genera were Colletotrichum, Rhiz...
Endolichenic fungi have been recognized as repository of bioactive metabolites with wide range of pharmacological properties, including antioxidant, anticancer, antifungal, antibacterial, antiquorum sensing, antiviral, and anti-Alzheimer's disease properties. Nevertheless, a few studies have been carried out on endolichenic fungi and the metabolite...
Cryptothecia sp. is a crustose lichen having varied medicinal properties. The present study aims to isolate and to determine the antimicrobial activity of endolichenic fungi from the surface sterilized lichen thallus of Cryptothecia sp. The isolation was done on three different media i.e., Potato Dextrose Agar (PDA), Malt Extract Agar (MEA) and Wat...
About 80% of the world total population residing in developing countries, especially in rural areas are still depending upon herbal medicines. The main problem associated with use of plants as medicine is due to insufficient production of medicinally active compounds as required to our needs. Medicinal plants are often colonized by endophytic micro...
Medicinal Plants used by the indigenous Mising Tribe of Assam
Conservation And Management of Bio- Resources for Rural Development
An endophytic fungus isolated from healthy leaf tissues of Houttuynia cordata Thunb., an ethnomedicinal plant of North East India, showed a considerable amount of antimicrobial activity. The ethyl acetate extract of the fungal culture filtrates displayed promising antimicrobial activity against a panel of clinically significant pathogens including...
Wild relatives of domesticated plants are an important genetic resource for breeding desired plant traits into related crop cultivars. Many traditional or indigenous vegetables and their wild relatives are characterized by a high nutritional value as compared to domesticated crops. Apart from their commercial, nutritional, medicinal and cultural va...
The north-eastern region (NER) has been in spotlight for its high biodiversity and traditional knowledge, and this region has been a priority for leading conservation agencies of the world. Among the north-eastern states, Assam is very rich in medicinal herbs and plants, epiphytic orchids and wild edible leafy vegetables. The state is also home to...
Lichens are omplex symbiotic associations between a fungus (mycobiont) and an alga (photobiont) with unique characteristics in plant kingdom. They have been recognized as repository of novel bioactive metabolites. Lichen compounds have been used since immemorial for use as dyes, perfumes and for treatment of various ailments. Lichens also host nume...
Zanthoxylum oxyphyllum Edgew. is a medicinal plant widely been used by the local tribal communities of Assam as an alternative source of medicine for the treatment of various diseases. In the present study, endophytic fungi associated with Z. oxyphyllum were undertaken with an aim to investigate the isolates for their antimicrobial potential. The e...
Background: Seed borne endophytic fungi play an important role in seed germination and plant health. There are ubiquitous and have been found associated in every plant species investigated so far. They colonize plant seeds without causing any disease and are often vertically transmitted. Despite their occurrence, seed borne endophytic fungi are poo...
Background:
Nowadays medicines derived from natural sources have drawn much attention as potential therapeutic agents in the suppression and treatment of cancer because of their low toxicity and fewer side effects.
Objective:
The present review aims to assess the currently available knowledge on the ethnomedicinal uses and pharmacological activi...
In vitro antibacterial activity of acetone, methanol, petroleum ether, and diethyl ether extracts of three foliose lichen species Dirinaria picta, Dirinaria Papillulifera, and Dirinaria applanata have been investigated against two clinically significant human pathogenic bacteria (Gram-positive Staphylococcus aureus, MTCC 737 and Gram-negative Esche...
The study aimed at evaluating bioactivities, phytochemical constituents, and molecular phylogeny of three wild edible mushrooms Russula densifolia (Secr.) Gillet., Russula violeipes Quel., and Russula cyanoxantha (Schaeff.) Fr. The mushroom extracts showed 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS), 2,2-diphenyl-1-picrylhydrazyl...
Endophytic fungi from healthy leaf tissues of Houttuynia cordata Thunb., a widely used ethnomedicinal plant of Northeast India, were investigated, and an attempt has been made to characterize the antimicrobial metabolites from some potent endophytic strains. Altogether, 56 endophytic fungal isolates were obtained from surface-sterilized leaf fragme...
Endophytic fungi are distinct microorganisms residing in many plants including the wild edible plants. They can produce various bioactive secondary metabolites with antimicrobial, anticancer and antidiabetic properties and can help in the discovery of new drug. In addition, they can interact with the host plants to enhance the required characters a...
Gastrointestinal tract disorders are the most commonly found disease all over the world which affect many people every year in a large scale. Rather than using the antibiotics to kill the disease causing microorganisms, the practice of using medicinal plants are seen throughout the world. It can reduce the mild or severe allergic reactions caused b...
Keywords: Diorygma hieroglyphicum (Graphidaceae) Talaromyces funiculosus (Trichocomaceae) Endolichenic fungus Xanthenones Funiculosone X-ray of mangrovamide J Antimicrobial activity A B S T R A C T An undescribed substituted dihydroxanthene-1,9-dione, named funiculosone, was isolated together with its two analogues identified as mangrovamide J and...
Eyngium foetidum L. is a medicinal plant widely used by ethnic tribal communities of Assam as an alternative source of medicine for the treatment of various diseases. The present investigation was undertaken with an aim to isolate, identify and assess the antimicrobial activity of endophytic fungi associated with the healthy leaf tissues of E. foet...
The current study revealed diversity, distribution and utilization of wild edible mushrooms from forest regions of northern Odisha, India. A total of 20 wild edible mushroom species belonging under six orders and nine families. Among them the order Agaricales was dominant, harboring maximum number of species and the genus Russula exhibited maximum...
A study on storage of fresh vegetables by the local people was conducted in some blocks of Mayurbhanj district in Odisha, during 2018. The information was collected from eight blocks i.e. Chandua, Suliapada, Barasahi, Shamakhunta, Bangiriposi, Baripada sadar, Udala and Kaptipada. During the interaction with the local people, it was observed that di...
A new 6-benzyl-γ-pyrone (1), named aspergyllone was isolated from the culture filtrates of an endolichenic fungus Aspergillus niger Tiegh, obtained from lichen thallus Parmotrema ravum (Krog & Swinscow) Serus, collected in India. 1 was isolated for the first time from an endolichenic fungus together with six other known metabolites identified as au...
An extensive field study was carried out to document the wild edible mushrooms diversity in Mayurbhanj district of Odisha from May 2017 to December 2017. A total of 14 wild edible mushroom species belonging to 5 families i.e. (Lyophyllaceae, Volvariaceae, Russulaceae, Amanitaceae, Diplocystaceae) were recorded. Species richness was found to be high...
In the present investigation, the antifungal activity of Cymbopogon nardus essential oil was studied against some fungi contaminating cereals and pulses. A total of 172 fungal isolates were obtained from contaminated cereals and pulses samples collected from Jalukbari and Maligaon markets of West Guwahati, Assam. The frequently isolated fungal spec...
Endophytic fungi reside inside the healthy tissues of plants. Expansion of the world population has increased the health problems in human and plant and drug resistance in pathogens. Endophytic fungi have the ability to benefit plant growth, metabolism and defense against pathogens, herbivores, insects, etc. They can produce various potential comme...
In the present investigation, the antifungal activity of essential oil obtained from Zanthoxylum rhetsa was studied against some fungi contaminating stored grains. A total of 83 fungal isolates were obtained from contaminated samples collected from West Guwahati markets, India. The frequently isolated fungal species were Aspergillus niger, Aspergil...
A rarely found Geastrum species was collected from Shorearobustaforest soil of Similipal Biosphere Reserve, Odisha, which is known for its ethnomedicinal uses as wound healing. Fungal mycelia developed from spore culture of the fruiting body were used to evaluate antimicrobial activities. The spore mass of the macro fungi were aseptically inoculate...
This study examined the antimicrobial potentials of endophytic bacteria isolated from leaf tissues of Hyptis suaveolens against some clinically significant pathogens. The results indicated that 60% of the isolates showed antimicrobial activity inhibiting at least one of the test pathogens in preliminary screening. Among them two isolates showed con...
Mushrooms seem to be a potential source for prebiotics as they contain different polysaccharides such as chitin, hemicellulose, α- and β-glucans, mannans, xylans and galactans. Among mushroom polysaccharides, β-(1→3)-D-glucans, and their peptide/protein derivates (polysaccharide-peptide/protein complexes), proteoglycans are essential prebiotics and...
Background:
In malaria, the toll-like receptors (TLRs) have recently emerged as major player of innate immunity. However, implication of TLR variants on clinical manifestations of malaria is conflicting. The present study aims to provide relevant information of growing interest in understanding the role of TLR4D299G, TLR9T-1237C and TLR9T-1486C po...
Medicinal mushrooms viz. Ganoderma applanatum, Ganoderma lipsiense, Ganoderma chalceum and Ganoderma tsugae are important forest products of Similipal Biosphere Reserve, India. The present study aimed to evaluate the chemical constituents, antioxidant and antibacterial potential of these mushrooms. The chemical constituents were determined in terms...
Similipal Biosphere Reserve (SBR) is a tropical moist deciduous forest dominated by the species Shorea robusta. To the best of our knowledge their rich biodiversity has not been explored in term of its microbial wealth. In the present investigation, soil samples were collected from ten selected sites inside SBR and studied for their physicochemical...
A variety of edible mushrooms are growing in Similipal Biosphere Reserve (SBR), some of which are used as ethno-medicine by indigenous tribals. In the present study, three wild edible mushrooms viz., Russula vesca, Russula delica and Termitomyces
eurrhizus of SBR were analyzed for their nutritional and mineral contents along with antioxidant and an...
Colonial morphology (a) and spores (b) of Quambalaria sp.
Antagonistic activity of the metabolites of Quambalaria sp. under different cultural conditions against some bacteria and fungi.
To study endophytic fungi associated with two plant species used as ethno-medicines by aboriginal tribes of Similipal Biosphere Reserve and evaluation for their antimicrobial potentials against some clinically significant human pathogens. A total of 458 endophytic isolates were obtained from leaf, stem and fruit tissues of Solanum rubrum and Morind...
The aim of this work was to study the endophytic fungi associated with the tissues of Ipomoea carnea, a common invasive plant of India. A total of 69 isolates belonging to ten taxa comprising 1.45% Zygomycetes, 10.14% Coelomycetes, 62.32% Hypomycetes, 18.84% sterile mycelia and 7.25% unidentified species were obtained. Species of Curvularia, Asperg...
Taxus baccata an evergreen gymnosperm plant is an important source of Taxol- a proven anticancer drug. Traditionally the bark of this plant is used for preparing beverages locally known as Namkin chay and use as medicine in many regions of Himalayas. Antimicrobial activity of Taxus baccata bark was tested by Agar cup diffusion method against some i...