Native mycota in agricultural soils exposed to pesticides and Aspergillus oryzae tolerance to chlorpyrifos in microcosms assays

Carranza, CS

doi:10.5943/cream/7/3/10

Cited by 2 publications

(1 citation statement)

References 34 publications

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“…Notably, Benito et al [107] found that A. flavus AFS 63 and A. parasiticus APS 55 were able to tolerate glyphosate (herbicide) at the recommended field dosages. Aspergillus oryzae AM 1 exhibited the ability to tolerate chlorpyrifos (insecticide) at both the recommended field dosages and at over double the recommended dosages [108]. Therefore, the knowledge regarding the agrochemical tolerance of the PSF gained from this study could prove valuable insights for practical agricultural purposes, as it might involve the concurrent use of these fungal species with herbicides and insecticides on crops at recommended doses.…”

Section: Discussionmentioning

confidence: 91%

Multifarious Characterization and Efficacy of Three Phosphate-Solubilizing Aspergillus Species as Biostimulants in Improving Root Induction of Cassava and Sugarcane Stem Cuttings

Khuna,

Kumla,

Srinuanpan

et al. 2023

Plants

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Several soil fungi significantly contribute to the enhancement of plant development by improving nutrient uptake and producing growth-promoting metabolites. In the present study, three strains of phosphate-solubilizing fungi, namely, Aspergillus chiangmaiensis SDBR-CMUI4, A. pseudopiperis SDBR-CMUI1, and A. pseudotubingensis SDBR-CMUO2, were examined for their plant-growth-promoting capabilities. The findings demonstrated that all fungi showed positive siderophore production, but only A. pseudopiperis can produce indole-3-acetic acid. All fungi were able to solubilize insoluble phosphate minerals [Ca3(PO4)2 and FePO4] by producing phosphatase enzymes and organic acids (oxalic, tartaric, and succinic acids). These three fungal species were grown at a water activity ranging from 0.837 to 0.998, pH values ranging from 4 to 9, temperatures between 4 and 40 °C, and 16–17% NaCl in order to evaluate their drought, pH, temperature, and salt tolerances, respectively. Moreover, the results indicated that A. pseudopiperis and A. pseudotubingensis were able to tolerate commercial insecticides (methomyl and propargite) at the recommended dosages for field application. The viability of each fungal strain in the inoculum was higher than 50% at 4 and 20 °C after 3 months of storage. Subsequently, all fungi were characterized as plant-growth-promoting strains by improving the root inductions of cassava (Manihot esculenta Crantz) and sugarcane (Saccharum officinarum L.) stem cuttings in greenhouse experiments. No symptoms of plant disease were observed with any of the treatments involving fungal inoculation and control. The cassava and sugarcane stem cuttings inoculated with fungal strains and supplemented with Ca3(PO4)2 exhibited significantly increased root lengths, shoot and root dry biomasses, chlorophyll concentrations, and cellular inorganic phosphate contents. Therefore, the application of these phosphate-solubilizing fungi is regarded as a new frontier in the induction of roots and the promotion of growth in plants.

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Section: Discussionmentioning

confidence: 91%