NBU Journal of Plant Sciences, Vol. 13
Permanent URI for this collectionhttps://ir.nbu.ac.in/handle/123456789/4550
EDITORIAL
The NBU Journal of Plant Sciences (NBUJPS) started its journey in the year 2007 and has been publishing quality articles in print mode. It is my honour to inform that the Editorial Board has decided to publish the journal in both print and online mode from 2021 (starting Volume 13, March 2021). From now, all the articles of the present and past volumes can be accessed at www.njps.nbu.ac.in. The NBUJPS have officially registered for the membership of CrossRef and now onwards all the articles will be assigned unique DOI numbers and will include other CrossRef services like similarity checking and reference linking. It gives me extreme pleasure to inform that the NBUJPS publishes all the articles at free of charge and will continue to do so in the future also.
Dr. Subhas Chandra Roy
Editor
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Item Open Access Zinc Oxide Nanoparticles: Different synthesis approaches and applications(University of North Bengal, 2021-03) Kundu, Sudipta; Haydar, Md. Salman; Mandal, PalashNanotechnology deals with the synthesis and usage of materials with nanoscale dimension (1-100 nm). Nanoscale dimensions of the particles provide large surface to volume ratio and thus very specific properties. Synthesis of zinc oxide nanoparticles (ZnO NPs) has gained prime importance in recent arena due to its high excitation binding energy and large bandwidth and it has potential applications like anti-diabetic, antibacterial, anti-inflammatory, antifungal, wound healing, antioxidant and optical properties. Zinc (Zn) is a common mineral element in nature which plays an immense role in many biological processes. It is defined as an essential trace element or micronutrient which is very much crucial for the normal growth and the development of all higher plants as well as animals. Zinc directly involves in enzyme function associated with the photosynthesis and energy process in plants. It also plays an important role in maintenance of membrane integrity, formation and production of growth hormone, insulin, thyroid etc. Due to the involvement of large rate of toxic chemicals and requirement of extreme environment, chemical and physical methods of nanoparticle synthesis often became inappropriate. Whereas, green methods are used in a wide range of biological samples including plants, fungus, bacteria, and algae, which act as both reducing and capping agent. Biologically synthesized zinc nanoparticles have been reported for versatile applications in the field of medicine and pharmacy, for bio-imaging and bio-sensor production, in gene therapy and drug delivery system. Zinc nanoparticles also play vital role in agricultural sector including plant growth and development, enhancement of crop yield and post-harvest processing. In spite of being great potential of ZnO NPs for abiotic and biotic stress management, research works in this field is considerably less. This review described the summary of the recent works in the synthesis mechanism, characterization techniques, and applications of biosynthesized ZnO NPs in medicine and agriculture with special reference to application on plant growth, development and abiotic stress management.Item Open Access Nutritional and Antioxidant Properties of the Seeds of Vigna unguiculata subsp. sesquipedalis (L.) Verdc. – An Underutilized Legume of West Bengal(University of North Bengal, 2021-03) Firdousi, Sabnam; Chakraborty, Rakhi; Roy, SwarnenduThe Exploration of the underutilized crops for nutritional benefits is one of the major strategies to feed the ever-increasing population. There are many nutritionally rich leguminous crops (Vigna unguiculata, Cassia hirsuta, Canavalia ensiformis, Dolichos biflorus, etc.) that have remained unexplored for a long time, though could provide a cheap and alternative food source. The present study was conducted to assess the nutritional and antioxidant properties of the seeds of an underutilized legume Vigna unguiculata subsp. sesquipedalis (L.) Verdc. The methanolic seed extract showed concentration-dependent radical scavenging activities against DPPH, ABTS, NO, OH and FRAP. The seed extract also showed the presence of nutritional and antioxidative phytochemicals viz. alkaloids, saponins, tannins, phenolics, flavonoids, ascorbic acid etc. The presence of a considerably high amount of protein and a low amount of total sugar can also be regarded as beneficial for regular consumption. Moreover, HPLC-MS analysis also revealed the presence of several phenolic derivatives (gallic acid, pyrogallol, chlorogenic acid, catechol etc.) that might also contribute to the antioxidative property of the seeds. Further research on the isolation, purification and characterization of the antioxidative phytocompounds would help decipher their mechanism of action as well as increase the sustainable utilization of the nutritionally rich legume crop.Item Open Access Genetic Resources of Wild Rice (Oryza rufipogon) for Biotic and Abiotic Stress Tolerance Traits(University of North Bengal, 2021-03) Roy, Subhas ChandraRice (Oryza sativa L.) is the most important staple food crop of the world; nearly half of the global population depend on it for majority of their dietary intake. Many stresses (biotic and abiotic) have critically affected rice production throughout the world due to global warming, changing climatic conditions and in addition non-durability of biotic resistance gene(s) incorporated into cultivars. Yield increase is not as per the required rate and becomes yield rate is in stagnation. Primary reason of yield stagnation is due to the narrow genetic base in the released varieties. Minimum number of parental lines were utilised to develop new crop varieties which ultimately leads to narrow genetic base. The narrow genetic base in the improved varieties is going to be a main bottleneck for crop improvement program which shield the yield increase. Genetic bottleneck during domestication causes erosion of the genetic diversity in the well adapted cultivars which leads to yield stagnation. Yield plateaus can be surmount through genetic gain by combining the yield related genes/QTLs from different genetic resources of rice germplasm both from local landraces (CLR) and crop wild relatives (CWR). Wild species are the reservoir of genetic diversity with wide adaptability and tolerance to many biotic and abiotic stresses. It is utmost necessary to characterize and conserve rice germplasm for evaluation and effective use of the genetic diversity prevailed in the rice gene pool. Genetic variability in respect to biotic/abiotic resistance is inadequate in the genetic resources of cultivated rice; however, these traits specific genes are available in the unexplored wild species of Oryza which are considered as rich source of agronomically important traits including biotic/abiotic traits. Therefore, breeders are trying to identify and transfer of these valuable genes from wild Oryza species to improve varieties through pre-breeding method and with the assistance of molecular breeding technology.Item Open Access Disease Management in Brassicaceae family through various biocontrol agents: A review(University of North Bengal, 2021-03) Kundu, Chitra; Rai, Bijeta; Subba, Rewaj; Mathur, PiyushBiological control being an eco-friendly approach against phytopathogens holds a great potential in near future. Severity of chemical-based pesticides have resulted risk to mankind and the environment. The increasing demand for chemical free products all over the world promotes eco-friendly approach such as biological control as a replacement to chemical pesticides. Various bio-formulations of living organisms can be employed to control several plant pathogens. Studies have shown that bacteria, fungi and plants can act as an important source of biocontrol products and have shown positive results in both in-vitro and in-vivo conditions. This review will help us to provide insight towards the potential of various biological entities against major diseases in Brassicaceae along with mechanisms which might be useful in developing various bio-pesticides against plant pathogens for sustainable agriculture.Item Open Access Study on Spikelet Morphology of Some Indian Grasses (Poaceae)(University of North Bengal, 2021-03) Mondal, Sujit; Pal, Aaratrik; Chowdhury, MonoranjanPoaceae (Graminae) is the most species-rich vascular flowering plant family that includes many economically valuable food crops consumed by human beings in different parts of the World. Grasses are most common floral component of all kind of vegetation and they grow in marshy lowland to higher altitude i.e., subalpine to alpine environment. Identification at the species level becomes extremely difficult in grasses and only the revelation of detailed spikelet structures can only provide a satisfactory result. Present work studied detailed morphology of various parts of spikelet of some grass from sub-Himalayan West Bengal along with their suitable illustrations.