Biofertilizing effect of putative plant growth promoting rhizobacteria in vitro and in tomatillo seedlings (Physalis ixocarpa Brot.)

Ramírez-Cariño, Heriberto Fortino; Morales, Isidro; Guadarrama-Mendoza, Paula Cecilia; González-Terreros, Elizabeth; Martínez-Gutiérrez, Gabino Alberto; Dunlap, Christopher A.; Valadez-Blanco, Rogelio

doi:10.1016/j.scienta.2022.111567

Cited by 13 publications

(11 citation statements)

References 42 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The positive effect on the dry weight of bacterial inoculation was observed for all treatments below the full K dose with respect to the non-inoculated plants. Similar results were found in our previous work on the biofertilization of tomatillo seedlings [ 9 ], in which the rhizobacterial strains Atlantibacter sp., Priestia megaterium, and A. calcoaceticus increased the dry leaf weight (>349%), weight (>479%), and plant height (>140%) of tomatillo seedlings compared with the non-inoculated control.…”

Section: Discussionsupporting

confidence: 91%

“…In the case of phosphorous, a similar effect of the inoculant was observed, with an increase in the P content at low K doses. A similar rationale to that applied previously for the biofertilizer effect on K can be further supported considering that in our previous work, the strain A. calcoaceticus UTMR2 displayed in vitro capacity for P solubilization [ 9 ].…”

Section: Discussionsupporting

confidence: 74%

“…In a similar study, Hernández-Pacheco et al [ 8 ] reported that the rhizobacterial consortium comprised of Microbacterium oxydans , Stenotrophomonas maltophilia , B. toyonensis , Microbacterium foliorum , Leifsonia shinshuensis , and Neobacillus drentensis increased the length of the primary and lateral roots, the fresh weight of root and stem, and the total weight of tomatillo plants ( P. ixocarpa ) in comparison with the non-inoculated treatment. Similarly, in our previous work on tomatillo biofertilization [ 9 ], we reported that the putative biofertilizer strains Atlantibacter sp., Priestia megaterium, and Acinetobacter calcoaceticus increased the dry leaf weight (>349%), root length (>11%), dry root weight (>479%), and plant height (>140%) of tomatillo seedlings in comparison with the non-inoculated control. In addition, it was reported that the strain A. calcoaceticus increased the concentration of three minerals: K (37%), Ca (80%), and Mg (81%), in comparison with the non-inoculated seedlings.…”

Section: Introductionsupporting

confidence: 68%

“…Apart from enhancing nutrient assimilation by the plant, benefic rhizobacteria can favor plant growth by synthesizing phytohormones, such as indole-3-acetic acid (IAA). Although the presence of these metabolites in the plants was not studied in this work, in our previous publication [ 9 ], it was found that the strain A. calcoaceticus UTMR2 was capable of in vitro producing IAA (4.5 µg/mL), with the inoculant inducing a higher growth of tomatillo seedlings in comparison with the non-inoculated control. A few studies have reported the presence and effects of phytohormones during in vivo crop cultivation.…”

Section: Discussionmentioning

confidence: 95%

“…This may imply the action of the rhizobacteria to improve the availability of the non-soluble K present through irrigation and in the cultivation soil, considering that the water was characterized as very hard water, which implies a high content of mineral salts. In this regard, in our previous work [ 9 ] on the biofertilization of tomatillo seedlings without the addition of chemical fertilizers, we reported that the rhizobacterial strain A. calcoaceticus caused an increase in the K content of the plants in comparison with the non-inoculated treatment. The reason that this effect was observed only in the low K dose seems to be related to the availability of this element.…”

Section: Discussionmentioning

confidence: 96%

See 4 more Smart Citations

Combined Effect of the Potassium Dose and Plant Biofertilization by Acinetobacter calcoaceticus on the Growth, Mineral Content, Nutritional Quality, Antioxidant Activity, and Metabolomic Features of Tomatillo Fruits (Physalis ixocarpa Brot.)

Ramírez-Cariño

Ochoa‐Velasco

Guerrero‐Analco

et al. 2023

Plants

Self Cite

View full text Add to dashboard Cite

An Acinetobacter calcoaceticus UTMR2 strain was evaluated in tomatillo plants (Physalis ixocarpa Brot.) using a factorial design with different potassium doses (100, 75, 50 and 0% of the recommended dose). In addition to the agronomic parameters, an analysis of the physicochemical, antioxidant, and metabolomic properties of the fruit was performed. The application of the inoculant affected several parameters of the plant (chlorophyll, weight, and contents of several mineral elements) as well as of the fruit (yield, maturity index, FRAP antioxidant capacity, and contents of protein, fiber, and fat). A multivariate analysis was performed by means of a PCA and a heatmap, indicating that the inoculant induced a strong modulating activity in tomatillo plants for the evaluated parameters, with a remarkable effect at low K doses (0 and 50%). The inoculated treatment at 75% of the K dose resulted in similar plant and fruit characteristics to the fully fertilized control. On the other hand, the biofertilized treatment with no K addition resulted in the highest values in the plant and fruit parameters. In addition, from the metabolomics analysis of the fruits at 75% of the K dose, the up-regulation of 4,4″-bis(N-feruloyl)serotonin, salvianolic acid K, and chlorogenic acid was observed, which may have a role in anti-senescence and resistance mechanisms. In conclusion, the rhizobacterial strain had a positive effect on plant growth, nutritional quality, bioactive compounds, and antioxidant activity of tomatillo fruits at reduced doses of K fertilizer, which gives support for its consideration as an effective biofertilizer strain.

show abstract

Section: Discussionsupporting

confidence: 91%

Section: Discussionsupporting

confidence: 74%