The Nucleus
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Comparative karyomorphological analyses of in vitro and in vivo grown plants of Aloe vera L. BURM. f.
The Nucleus - Tập 53 - Trang 89-94 - 2010
Aloe vera L. Burm. f. is used as a popular folk medicine with many cultivars growing naturally or in cultivation in different parts of the world. The present report describes the methods of in vitro propagation and conservation as well as detailed chromosomal analysis of two morphologically indistinguishable cultivars of Aloe vera obtained from NBPGR at the CAZRI (Central Arid Zone Research Instit......
An insight into plant–Tomato leaf curl New Delhi virus interaction
The Nucleus - Tập 60 - Trang 335-348 - 2017
Plants being sessile are constantly exposed to several stresses, which involve different types of abiotic and biotic stress factors. Biotic stress in plants is caused by various living organisms called plant pathogens including bacteria, viruses, fungi and parasites. Among these pathogens, plant viruses cause severe damage to world agricultural productivity. The reason behind such widespread dest......
Ploidy analysis of Helianthus species by flow cytometry and its use in hybridity confirmation
The Nucleus - Tập 59 - Trang 123-130 - 2016
Sunflower (Helianthus annuus L.) is one of the most important oilseed crops cultivated worldwide. It is one of the few crops that has been improved for several characteristics through interspecific hybridization. In the present investigation, the ploidy of 43 Helianthus species belonging to diploid, tetraploid and hexaploid status along with 2 accessions of cultivated sunflower was determined. As ......
Karyomorphology of Aspidistra grandiflora H. J. Tillich from Indonesia
The Nucleus - Tập 55 - Trang 139-141 - 2012
The karyotype of Aspidistra grandiflora from Indonesia is described here for the first time. A. grandiflora has a chromosome number of 2n = 38 and is karyotypically formulated as 2n = 17 m + 11sm + 10st. The average chromosome length is 5.07 μm, and the karyotype asymmetry indexes A1 and A2 are respectively 0.44 and 0.60. The cytomorphology of A. grandiflora is remarkably different from those of t......
Modified protocol for obtaining isolated and high-resolution pachytene chromosomes
The Nucleus - Tập 54 - Trang 3-7 - 2011
The expansion of molecular cytogenetics has called for the evaluation of pachytene chromosomes as targets for in situ hybridization (ISH) and micro-dissection. These techniques represent powerful tools for chromosome identification, karyotype comparison, physical mapping and phylogenetic analyses. Because cytogenetic preparations showing well-individualized and cytoplasm-free chromosomes are pre-r......
Genotoxicity of nanoscale zerovalent iron particles in tobacco BY-2 cells
The Nucleus - Tập 62 - Trang 211-219 - 2019
Nanoremediation by direct injection of nZVI into contaminated water or soil has engendered their liberation into the environment facilitating interaction with plant systems. Available reports display a scarcity of information on the genotoxicity of nZVI in plants. In this study, the cyto-genotoxic potential of nZVI was evaluated in tobacco BY-2 cells treated for 24 h. A wide range of concentration......
A review on fluoride induced organotoxicity and genotoxicity in mammals and zebrafish
The Nucleus - Tập 62 - Trang 177-185 - 2019
Fluorine is a highly reactive electronegative element and naturally found in a combined form with other elements. In water, it remains as fluoride. It can be present in soil and air also. Beside the natural abundance, anthropogenic activities e.g. use of pesticides, fertilizers, sewage, coal burning etc. can increase the fluoride concentration in the environment. According to the World Health Orga......
Contribution of environmental, genetic and epigenetic factors to obesity-related metabolic syndrome
The Nucleus - Tập 66 - Trang 215-237 - 2023
Non-communicable lifestyle diseases and related mortality are increasing rapidly over the last few decades. Obesity is one of the major concerning problems leading to obesity-related metabolic syndrome like cardiovascular diseases, type 2 diabetes mellitus, polycystic ovarian syndrome etc. About 40–75% of obesity cases arise through genetic inheritance. The genetic and epigenetic alterations invol......
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