Abstract

NAVA-FAUSTINO, Getzemany et al. In vivo translocation of Klebsiella variicola PB02 and Klebsiella quasipneumoniae HPA43 in fruits of Solanum lycopersicum cultivar DT-22. Rev. Mex. Cienc. Agríc [online]. 2022, vol.13, n.5, pp.799-811.  Epub Oct 10, 2022. ISSN 2007-0934.  https://doi.org/10.29312/remexca.v13i5.2880.

Currently, biofertilizers or organic compounds have been implemented in agriculture as fertilizer to increase the yield of crops of commercial interest and restore soil fertility. The use of plant growth-promoting bacteria has been one of the best alternatives that increase production yield and do not cause damage to the environment. Their use is not fully accepted by producers because of the risk they may have to the health of the consumer. Therefore, this work evaluated the effectiveness of two strains K. variicola PB02, K. quasipneumoniae HPA43 in consortium with Trichoderma in the production yield of Solanum lycopersicum cultivar DT22, a variety highly marketed in the national market, the significant increase (p= 0.003) was observed with respect to other commercial biofertilizers and the control group. The microbiological safety of the fruits, the translocation of these bacteria by the vascular system of the plant until reaching the fruit, was evaluated through the clonal profile of each of the isolates, without finding similarities between the inoculated strains and the strains isolated from endophytic tissues of the fruit, however it is necessary to carry out more genetically specific studies that verify that these bacteria have not actually developed mechanisms that allow them to translocate to aerial anatomical sites of plants and fruit, thus guaranteeing quality fruits without representing a risk to the health of the consumer and a high yield in the production of agricultural crops of commercial interest.

Keywords : biofertilizer; clonal profile; safety; translocation.

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