Primavera otoño 2020 (Año LXIII Núms. 122-123)

horizontes@pucpr.edu Año LXIV Núm. 124-125 horizontes PRIMAVERA / OTOÑO 2021 PUCPR 69 promoting the plants’ overall health and it is possible to successfully transform the bacterial acdS gene into plants. Acknowledgments I would like to acknowledge Dr. Dallas E. Alston, professor in the Department of Natural Sciences, PCUPR and Dr. Xavier A. Cruz, professor in the Center for Teaching and Research in Biotechnology and Agrobiotechnology (CEIBA) for their continued support, and guidance during the completing of this manuscript. I offer my sincere appreciation for the learning opportunities provided by them. References Checcucci, A., Azzarello, E., Bazzicalupo, M., De Carlo, A., Emiliani, G., Mancuso, S., Spini, G., Viti, C., & Mengoni, A. (2017). Role and regulation of ACC deaminase gene in Sinorhizobium meliloti: Is it a symbiotic, rhizospheric or endophytic gene? Frontiers in Microbiology, 8(6). https://doi.org/10.3389/fgene.2017.000 06 Danish, S., Zafar-ul-Hye, M., Mohsin, F., & Hussain, M. (2020). ACC-deaminase producing plant growth promoting rhizobacteria and biochar mitigate adverse effects of drought stress on maize growth. PLOS ONE, 15(4), Article e0230615. https://doi.org/10.1371/journal.pone.0 230615 Fernández-Llamosas, H., Ibero, J., Thijs, S., Imperato, V., Vangronsveld, J., Díaz, E., & Carmona, M. (2020). Enhancing the rice seedlings growth promotion abilities of Azoarcus sp. CIB by heterologous expression of ACC deaminase to improve performance of plants exposed to cadmium stress. Microorganisms, 8(9), Article 1453. https://doi.org/10.3390/microorganism s8091453 Jung, H., Ali, S., Kim, J. Y., & Kim, W. C. (2018). Transgenic Arabidopsis expressing acdS gene of Pseudomonas veronii- KJ alleviate the adverse effects of salt and water-logging stress. Plant Breeding and Biotechnology, 6(3), 221-232. https://doi.org/10.9787/PBB.2018.6.3.2 21 Kong, Z., Glick, B. R., Duan, J., Ding, S., Tian, J., McConkey, B. J., &Wei, G. (2015). Effects of 1-aminocyclopropane-1-carboxylate (ACC) deaminase-overproducing Sinorhizobium meliloti on plant growth and copper tolerance of Medicago lupulina. Plant Soil, 391, 383–398. https://doi.org/10.1007/s11104-015- 2434-4 Lemaire, B., Van Cauwenberghe, J., Chimphango, S., Stirton, C., Honnay, O., Smets, E., & Muasya, A. M. (2015). Recombination and horizontal transfer of nodulation and ACC deaminase (acdS) genes within Alpha- and Betaproteobacteria nodulating legumes of the Cape Fynbos biome. FEMS Microbiology Ecology, 91(11), Article fiv118. https://doi.org/10.1093/femsec/fiv118 Li, Z., Chang, S., Ye, S., Chen, M., Lin, L., Li, Y., Li, S., & An, Q. (2015). Differentiation of 1- aminocyclopropane-1-carboxylate (ACC) deaminase from its homologs is the key for identifying bacteria containing ACC deaminase. FEMS Microbiology Ecology, 91(10), Article fiv112. https://doi.org/10.1093/femsec/fiv112

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