Plant tissue culture plays an important role in plant biotechnology due to its potential for massive production of improved crop varieties and high yield of important secondary metabolites. Several efforts have been made to ameliorate the effectiveness and production of plant tissue culture, using biotic and abiotic factors. Nowadays, the addition of nanoparticles as elicitors has, for instance, gained worldwide interest because of its success in microbial decontamination and enhancement of secondary metabolites. Nanoparticles are entities in the nanometric dimension range: they possess unique physicochemical properties. Among all nanoparticles, silver-nanoparticles (AgNPs) are well-known for their antimicrobial and hormetic effects, which in appropriate doses, led to the improvement of plant biomass as well as secondary metabolite accumulation. This review is focused on the evaluation of the integration of nanotechnology with plant tissue culture. The highlight is especially conveyed on secondary metabolite enhancement, effects on plant growth and biomass accumulation as well as their possible mechanism of action. In addition, some perspectives of the use of nanomaterials as potential therapeutic agents are also discussed. Thus, the information provided will be a good tool for future research in plant improvement and the large-scale production of important secondary metabolites. Elicitation of silver-nanoparticles, as well as nanomaterials, function as therapeutic agents for animal well-being is expected to play a major role in the process. However, nanosized supramolecular aggregates have received an increased resonance also in other fields of application such as animal welfare. Therefore, the concluding section of this contribution is dedicated to the description and possible potential and usage of different nanoparticles that have been the object of work and expertise also in our laboratories.
<p>Situ Patenggang is an elite upland rice variety well-accepted by farmers, but recently this variety started to be attacked by blast disease (Pyricularia grisea) that causes yield loss up to 50%. To overcome this problem, Bio Patenggang variety has been developed through molecular breeding using blast-resistant monogenic lines as donor parents. The aim of this research was to present molecular breeding approach of Bio Patenggang development, including steps from the phenotypic selection on candidate lines to the genotypic analysis assisted by molecular markers. The phenotypic performances were assessed using Distinctness, Uniformity, and Stability (DUS) testing by following the standard method stated in the rice test guidelines. The genotypic analyses were performed using foreground and background markers. Four BC3F7 lines were selected as the candidates of the Situ Patenggang-derived variety. Based on ANOVA and Principal Component Analysis (PCA), phenotypic performances of the four lines demonstrated no significant differences with that of Situ Patenggang. The selected lines have also passed the foreground analysis confirming that the lines contained Pita, Pii, Pik-p, and Pia last resistance genes. Background analysis showed that the selected lines demonstrated agronomic perfomances very similar to that of Situ Patenggang. Association analyses showed that 14 markers were associated with the target traits and 10 out of the 14 markers were identified as co-segregation markers. The four selected lines, therefore, were proposed to be released as Situ Patenggang-derived variety. One of the lines (Sta-8-S15-TB16) has been approved to be released as a new variety, namely ‘Bio Patenggang Agritan’.</p>
This study aims to determine the effect of the use of social media on the psychological development of elementary school children. The purpose of this research is to describe the impact of using social media as an alternative for children's learning. This study uses literature review and analysis of scientific references related to the theme of the influence of social media on psychological development in elementary school children. The results of this study indicate that the role of parents and educators is very important, because that way they can supervise their children at home. Not only parents can supervise children, but educators at school must also supervise students. And also as parents, they should limit cellphones to children, for example every 4 hours so that children don't play social media or other things too often. Because control from educators and parents must be there for every child's development.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.