A. R. Nautiyal

Chandigarh University

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Harish Chandra

Gurukul Kangri Vishwavidyalaya

Vijay Kant Purohit

Hemwati Nandan Bahuguna Garhwal University

A. N. Purohit

Jai Narain Vyas University

P. Prasad

National Institute of Technology Jamshedpur

M. C. Nautiyal

Hemwati Nandan Bahuguna Garhwal University

Jatin Srivastava

Centre for Science and Environment

P. N. Thapliyal

Uttaranchal University

Vaishali Chandola

Hemwati Nandan Bahuguna Garhwal University

Sudeep Chandra

Hemwati Nandan Bahuguna Garhwal University

Rajeev Ranjan Kumar

Indian Agricultural Statistics Research Institute

Cooperative Institutions

Hemwati Nandan Bahuguna Garhwal University

G.B. Pant Institute of Himalayan Environment and Development

University of Delhi

National Botanical Research Institute

Govind Ballabh Pant University of Agriculture and Technology

Chhatrapati Shahu Ji Maharaj University

Indian Agricultural Research Institute

Graphic Era University

Dr. Bhim Rao Ambedkar University

Council of Scientific and Industrial Research

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Propagation of highly important life saving herbs Nardostachys grandiflora DC. via conventional and biotechnological approaches

Vijay Kant Purohit Pankaj Prasad M. C. Nautiyal A. R. Nautiyal

10.5176/2251-2489_biotech13.12

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Successful cultivation of highly valued and endangered medicinal herb Kutki (Picrorrhiza kurrooa): A case study from Ghesh village of Uttarakhand, Himalaya

Medicinal Plants - International Journal of Phytomedicines and Related Industries (2016)

V.K. Purohit M. C. Nautiyal A. R. Nautiyal Kamana Gairola

The cultivation of medicinal and aromatic plants (MAPs) is considered to be a great importance for the protection of natural populations as well as an option for livelihoods. At present most of the valuable MAPs are being heavily extracted for herbal drugs, traditional use and research purposes from the wild. This has adversely affected the existence of a number of plants particularly those of high commercial value. To check this over extraction of MAPs for various purposes and meet out the growing demands of raw materials, the domestication and cultivation of these species is only viable option. Cultivation of MAPs could also provide an opportunity to enhance the additional incomes of people residing in harsh environments such as high altitude areas of Himalaya where employment opportunities are very less. To maintain the in-situ conservation as well as development of self-employment opportunities in villages of higher Himalayan region, the High Altitude Plant Physiology Research Centre (HAPPRC) had initiated cultivation of highly valued and endangered medicinal herb Kutki (Picrorrhiza kurrooa) at Ghesh village (situated at 2500 m asl) of District Chamoli, Uttarakhand, India in 2001–2002. After thirteen years of continuous efforts, monitoring and observations a tangible impact of Kutki cultivation has been recorded in comparison to other traditionally growing crops i.e., Solanum tuberosum L. Amaranthus spinosus L., Phaseolus vulgaris L, (Fagopyrum esculentum L.), Eleusinian coracana L. and Triticum aestivum L. in village. Now the commercial cultivation of this valuable species creates the source of additional income to villagers and also checks the illegal collection of herbs from the wild.

10.5958/0975-6892.2016.00023.x

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Citations (1)

In vitro propagation of Rudraksha (Elaeocarpus sphaericus (Gaertn.) K. Schum): a biotechnological approach for conservation

Physiology and Molecular Biology of Plants (2015)

Kumud Saklani Sandeep K Singh Vijay Kant Purohit P. Prasad A. R. Nautiyal

10.1007/s12298-015-0316-0

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Seed viability in sal. IV: Protein changes accompanying loss of viability in Shorea robusta

Seed Science and Technology (1985)

A. R. Nautiyal A. P. Thapliyal A. N. Purohit

Shorea robusta

Dipterocarpaceae

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Wheat cultivars differing in heat tolerance show a differential response to monocarpic senescence under high-temperature stress and the involvement of serine proteases

Photosynthetica (2009)

Shakti Chauhan S. Srivalli A. R. Nautiyal Renu Khanna‐Chopra

High temperature is a common constraint during anthesis and grain-filling stages of wheat leading to huge losses in yield. In order to understand the mechanism of heat tolerance during monocarpic senescence, the present study was carried out under field conditions by allowing two well characterized Triticum aestivum L. cultivars differing in heat tolerance, Hindi62 (heat-tolerant) and PBW343 (heat-susceptible), to suffer maximum heat stress under late sown conditions. Senescence was characterized by measuring photosynthesis related processes and endoproteolytic activity during non-stress environment (NSE) as well as heat-stress environment (HSE). There was a faster rate of senescence under HSE in both the genotypes. Hindi62, having pale yellow flag leaf with larger area, maintained cooler canopy under high temperatures than PBW343. The tolerance for high temperature in Hindi62 was clearly evident in terms of slower green-leaf area degradation, higher stomatal conductance, higher stability in maximum PSII efficiency, Rubisco activity and Rubisco content than PBW343. Both the genotypes exhibited lower endopeptidase activity under HSE as compared to NSE and this difference was more apparent in Hindi62. Serine proteases are the predominant proteases responsible for protein degradation under NSE as well as HSE. Flag leaf of both the genotypes exhibited high-molecular-mass endoproteases (78 kDa and 67 kDa) isoforms up to full grain maturity which were inhibited by specific serine protease inhibitor in both the environments. In conclusion, the heat-tolerant Hindi62 exhibited a slower rate of senescence than the heat-susceptible PBW343 during HSE, which may contribute towards heat stability.

Senescence

Anthesis

Plant Physiology

10.1007/s11099-009-0079-3

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Citations (40)

Synergistic effect of Pongamia pinnata bark and Tamarindus indica fruit extract against aflatoxin producing fungi i.e. Aspergillus flavus.

Environment Conservation Journal (2007)

Harish Chandra O. P. Sidhu Jatin Srivastava Nishant Rai Sachin Chauhan

Pongamia

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AIE-active sulfone infused two-dimensional manganese(II) porphyrin based covalent organic framework as an effective photocatalytic tool for oxidative construction of N-S bond

Main Group Chemistry (2025)

A. R. Nautiyal Vivek Rana Renu Devi Rehana Shahin David G. Churchill

Sulfone-infused AIE-active 2-D manganese-porphyrin-based microporous COF (Mn-P) has been synthesized through a C-S coupling reaction. This process involved reacting manganese(II) tetra(p-bromophenyl) porphyrin with sulfur powder, using a catalytic amount of benzotriazole and copper iodide, under an inert nitrogen atmosphere at 100°C for 10–11 h. Mn-P has been used as a potential candidate for photocatalytic investigation due to its favorable optical and electrochemical band gap (1.78 eV). The size distribution study shows a narrow and uniform microporous structure with an average pore diameter of 1.80 nm along with ∼20.23 m 2 /g surface area. In the presence of sunlight as well as in aerobic conditions, the Mn-P proved its efficient photocatalytic role in the oxidative construction of N-S bond and the generation of 1,2,4-thiadiazole in excellent yield (93–97%).

Benzotriazole

10.1177/10241221241309241

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Mycorrhizal Colonization Affects the Survival of Vetiveria zizanioides (L.) Nash Grown in Water Containing As(III)

CLEAN - Soil Air Water (2010)

Jatin Srivastava D. K. Shukla Vishal Chand Ram Naraian Harish Chandra

Abstract The presence of arsenic (As) in water is of great public concern. Arsenic exists in three common valence states viz., As(0) metalloid arsenic, As(III) (arsenite) and As(V) (arsenate). Arsenite [As(III)] is the most toxic form among arsenicals which, predominates in anaerobic conditions, generally in flooded soils and in the water with high BOD. Experiments were conducted to investigate the effect of As(III) on the mycorrhization in vetiver ( Vetiveria zizanioides (L.) Nash) grass in hydroponics. Studies showed significant alteration in the mycorrhizal colonization in the roots of vetiver exposed to higher concentrations of As(III) starting from 1.0, 2.0, 3.0, 4.0 to 5.0 mg/L prepared in 5% Hoagland nutrient solution without addition of phosphate ions. Considerable reduction in the mycorrhizal intensity ( M ) was observed in all the treatment sets as compared to the control suggesting a negative impact of the As(III) on the mycorrhizal association. Simultaneously, the study also showed that, As(III) is toxic to the vetiver plants having mycorrhizal association however plants with non‐mycorrhizal (cleansed) roots were found to be able to survive for a longer period exposed to As(III).

Pteris vittata

Metalloid

Hydroponics

10.1002/clen.200900252

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Citations (4)

FUELWOOD VALUE INDEX OF INDIAN MOUNTAIN TREE SPECIES

International Tree Crops Journal (1987)

A. N. Purohit A. R. Nautiyal

SUMMARY A Fuelwood Value Index (FVI) was defined as (Calorific Value × Density)/(Ash Content × Water Content) to identify trees with potential for fuelwood production. The woods of forty four Indian mountain tree species were tested and their FVI calculated. The most promising species were Punica granatum, Sapindus mukorossi, Rhododendron arboreum, Quer cus spp., Adina cor difolia, Ougeinia dalbergioides and Pyrus pashia.

Punica

Uttar pradesh

10.1080/01435698.1987.9752821

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Citations (72)

Antioxidant potential and impact of different extraction solvents on the free, esterified and insoluble-bound phenolics, flavonoid and tannin content of Trillium govanianum Wall ex D. Don, a rare Himalayan herb

Vegetos (2022)

Vaishali Chandola Sudeep Chandra A. R. Nautiyal Germani Concenço

Tannin

10.1007/s42535-022-00365-8

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Citations (3)