OPTIMAL PARAMETERS FORT In Vitro DEVELOPMENT OF THE HYDROCARBONOCLASTIC MICROORGANISM Proteus sp

Hernández-Rivera, Miguel A.; Ojeda‐Morales, Marcia E.; Martínez-Vázquez, José Gabriel; Villegas-Cornelio, Víctor Manuel; Córdova‐Bautista, Yolanda

doi:10.4067/s0718-95162011000100003

Cited by 13 publications

(11 citation statements)

References 17 publications

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“…strain which could be useful as a sole degrader of oil hydrocarbons in soil was presented by Hernandez-Rivera et al . [57]. The strain may be presumed to belong to P. vulgaris group due to indole production and maltose fermentation abilities observed by the authors (see Table 1).…”

Section: Proteus In Bioremediation and Plant Growth Promotionmentioning

confidence: 99%

Significance and Roles of Proteus spp. Bacteria in Natural Environments

2016

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Proteus spp. bacteria were first described in 1885 by Gustav Hauser, who had revealed their feature of intensive swarming growth. Currently, the genus is divided into Proteus mirabilis, Proteus vulgaris, Proteus penneri, Proteus hauseri, and three unnamed genomospecies 4, 5, and 6 and consists of 80 O-antigenic serogroups. The bacteria are known to be human opportunistic pathogens, isolated from urine, wounds, and other clinical sources. It is postulated that intestines are a reservoir of these proteolytic organisms. Many wild and domestic animals may be hosts of Proteus spp. bacteria, which are commonly known to play a role of parasites or commensals. However, interesting examples of their symbiotic relationships with higher organisms have also been described. Proteus spp. bacteria present in soil or water habitats are often regarded as indicators of fecal pollution, posing a threat of poisoning when the contaminated water or seafood is consumed. The health risk may also be connected with drug-resistant strains sourcing from intestines. Positive aspects of the bacteria presence in water and soil are connected with exceptional features displayed by autochthonic Proteus spp. strains detected in these environments. These rods acquire various metabolic abilities allowing their adaptation to different environmental conditions, such as high concentrations of heavy metals or toxic substances, which may be exploited as sources of energy and nutrition by the bacteria. The Proteus spp. abilities to tolerate or utilize polluting compounds as well as promote plant growth provide a possibility of employing these microorganisms in bioremediation and environmental protection.

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Section: Proteus In Bioremediation and Plant Growth Promotionmentioning

confidence: 99%

Significance and Roles of Proteus spp. Bacteria in Natural Environments

2016

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“…can degrade chlorpyrifos up to 150 mg/L within 120 hours. A study by Hernández et al (2011) showed that Proteus sp. can degrade chlorpyrifos up to 83.60% within 72 hours of incubation.…”

Section: Discussionmentioning

confidence: 99%

“…Chlorpyrifos compound is a hydrocarbon compound that is used as a poison for insect pests. According to Hernández et al (2011), there are types of bacteria that are able to utilize hydrocarbon compounds as a source of metabolic energy in their bodies, and these bacteria are called hydrocarbonoclastic bacteria. According to Gray et al (2013), bacteria that can utilize hydrocarbon compounds have a special responsibility to toxic compounds such as chlorine and phosphate by releasing catalase and peroxidase enzymes.…”

Section: Discussionmentioning

confidence: 99%

The role of bacterial symbionts in the biodegradation of chlorpyrifos in the digestive tract of Plutella xylostella larvae

et al. 2021

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Abstract. Hadi MS, Abadi AL, Himawan T, MAsruri, Lestari SR, Rahardjo BT, Aini LQ, Setiawan Y, Tarno H. 2021. The role of bacterial symbionts in the biodegradation of chlorpyrifos in the digestive tract of Plutella xylostella larvae. Biodiversitas 22: 702-712. Several species in the order Lepidoptera act as plant pests, one of which is Plutella xylostella. Plutella xylostella is one of the most destructive pests of cabbage and other horticultural crops. The use of chemical insecticides as pest control for P. xylostella causes many problems, such as the increased pest resistance to pesticides. The objectives of this study are: (i) to obtain and characterize symbiont bacteria in the digestive tract of P. xylostella collected from organic and conventional agriculture soils; (ii) to evaluate the potential of bacterial symbionts in the digestive tract of P. xylostella from organic and conventional soils in degrading the active ingredient of chlorpyrifos insecticide; (iii) To determine the biodegradation process of chlorpyrifos insecticide by symbiont bacteria in the digestive tract of P. xylostella; and (iv) to identify the derivative compounds from the biodegradation of chlorpyrifos insecticide. The results showed 30 symbiont bacteria isolated from the digestive tract of P. xylostella collected from organic soil and 36 symbiont bacteria isolated from the digestive tract of P. xylostella from conventional farming soil. There are 15 species of symbiont bacteria in 5 genera from the digestive tract of P. xylostella from organic and conventional farming capable of degrading the chlorpyrifos insecticide. They are identified as Providencia sp., Pseudomonas sp., Serratia sp., Proteus sp., and Aeromonas sp. Chlorpyrifos-derived compounds from the biodegradation of symbiont bacteria are less toxic than chlorpyrifos compounds.

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“…Several studies have indicated that the Penicillium sp. degraded crude oil, using it as its sole source of carbon and energy [16,23,25,26,28,[64][65][66], or oil derivates with the same purpose [9,25,29,31,63]. This can be attributed to the fact that Penicillium sp.…”

Section: Resultsmentioning

confidence: 99%

Optimal Parameters for in Vitro Development of the Fungus Hydrocarbonoclastic Penicillium sp

Ojeda‐Morales¹,

Hernández-Rivera²,

Martínez-Vázquez³

et al. 2013

ACES

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México has extensive areas that have been impacted by oil spills for several decades. Current bioremediation technologies mostly used microorganisms to decontaminate sites with hydrocarbons. This research evaluated the conditions for the optimal development of the strain of a hydrocarbonoclastic fungus, which was found in samples of soil contaminated with 4.0 × 10 5 mg·kg −1 of Total Petroleum Hydrocarbons (TPH). A completely randomized experimental design with a 3 × 3 × 4 factor arrangement was used: three levels of temperature (T 1 = 29˚C, T 2 = 35˚C and T 3 = 40˚C), three of pH (pH 1 = 3.5, pH 2 = 5.0 and pH 3 = 6.0) and four nutrients (N 1 = Urea, N 2 = Triple-17, N 3 = Nitrophoska-Blue and N 4 = Pure-Salts). Total fungi were isolated from the sampled soil and were sown in a combined carbon medium for hydrocarbonoclastic fungi and a strain was selected to be adapted to a liquid mineral medium. The selected strain was classified as Penicillium sp. Analyses of variance and mean tests were performed, using the SPSS-11.0 statistical software. The microorganisms showed the highest population growth in the treatment N 2 pH 2 T 1 , which reached a value of 2.1 × 10 6 CFU·mL −1 in a biorreactor. To reach it, by bioaugmentation, the same development of Penicillium sp. in a conditioned soil would allow to implement a bioremediation strategy with great potential to retrieve soil contaminated with hydrocarbons both in Tabasco and in general in Mexico.

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OPTIMAL PARAMETERS FORT In Vitro DEVELOPMENT OF THE HYDROCARBONOCLASTIC MICROORGANISM Proteus sp

Cited by 13 publications

References 17 publications

Significance and Roles of Proteus spp. Bacteria in Natural Environments

Significance and Roles of Proteus spp. Bacteria in Natural Environments

The role of bacterial symbionts in the biodegradation of chlorpyrifos in the digestive tract of Plutella xylostella larvae

Optimal Parameters for in Vitro Development of the Fungus Hydrocarbonoclastic Penicillium sp

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