Browsing by Author "Jharjhari Chakma"

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Nanomaterial-based biosensors: a new frontier in plant pathogen detection and plant disease management
(Frontiers Media SA, 2025) Jeetu Narware; Jharjhari Chakma; Satyendra Pratap Singh; Divya Raj Prasad; Jhumishree Meher; Prachi Singh; Priya Bhargava; Shraddha Bhaskar Sawant; Pitambara; Jyoti Prakash Singh; Nazia Manzar; Abhijeet Shankar Kashyap
Nanotechnology has significantly advanced the detection of plant diseases by introducing nano-inspired biosensors that offer distinct advantages over traditional diagnostic methods. These biosensors, enhanced with novel nanomaterials, exhibit increased sensitivity, catalytic activity, and faster response times, resulting in improved diagnostic efficiency. The increasing impact of climate-induced stress and emerging plant pathogens have created an urgent demand for real-time monitoring systems in agriculture. Nanobiosensors are revolutionizing plant disease management by enabling on-site detection of pests and weeds, facilitating precise pesticide applications. This article provides a comprehensive overview of the development and application of nanobiosensors in real-time plant disease diagnosis. It highlights key innovations, such as smartphone-integrated nanozyme biosensing and lab-on-a-chip technologies. Special emphasis is placed on the detection of molecular biomarkers, demonstrating the critical role of nanobiosensors in addressing the evolving challenges of plant disease management and agricultural sustainability. © © 2025 Narware, Chakma, Singh, Prasad, Meher, Singh, Bhargava, Sawant, Pitambara, Singh, Manzar and Kashyap.
The Impact of Biofortified Vermicompost on Enhancing Nutritional Quality, Micronutrient Content, and Antioxidants in Carrot (Daucus Carota Cv Surbhi)
(Springer Science and Business Media Deutschland GmbH, 2025) Jharjhari Chakma; Jeetu Narware; Satyendra Pratap Singh; Dawa Dolma Bhutia; Amitava Rakshit
Purpose: Beneficial soil microbes are pivotal players in the intricate dance of nutrient cycling. Their abundance in the soil and its nutrient reservoir hinges on the soil’s structure and functions, influencing nutrient mobilization and uptake. This study explores the effects of biofortified vermicompost on improving the nutritional quality, micronutrient content, and antioxidants in carrots. By analyzing the influence of this formulation on the growth and development of carrots, we aim to shed light on its potential benefits for enhancing the overall health benefits of this popular vegetable. Methods: Carrots were cultivated in pots under nine different treatments, with vermicompost biofortified using various combinations of three beneficial microbes: Trichoderma harzianum, Bacillus subtilis, and Pseudomonas fluroscence, along with a control. Results: The results of the study revealed that the combination of T. harzianum and B. subtilis produced the most significant results (p < 0.05) across all parameters tested, including micronutrient content in carrot root (Fe, 77.65 ± 0.65 mg kg− 1) Cu (12.67 ± 0.12 mg kg− 1) and in soil Mn (18.13 ± 0.07 mg kg− 1), Zn (28.43 ± 0.08 mg kg− 1), antioxidant activity, and biochemical analysis. Following closely behind was the combination of B. subtilis and P. fluroscence where the treatment has shown best in micronutrient content of carrot root (Zn, 51.84 ± 2.48 mg kg− 1) and soil (Fe, 20.12 ± 0.03 mg kg− 1and Cu, 8.71 ± 0.40 mg kg− 1). Conclusions: Positive outcomes in all the parameters have been observed when beneficial microorganisms were recruited along with vermicompost in combination with different microorganisms and using the microorganisms individually, suggesting a strong correlation between plant-microbe interactions and improving the overall quality of carrots. © The Author(s) under exclusive licence to Sociedad Chilena de la Ciencia del Suelo 2025.