Cadmium-resistant and arginine decarboxylase-producing endophytic Sphingomonas sp. C40 decreases cadmium accumulation in host rice (Oryza sativa Cliangyou 513)

Cheng, Cheng; Wang, Ru; Sun, Lina; He, Linyan; Sheng, Xiafang

doi:10.1016/j.chemosphere.2021.130109

Cited by 31 publications

(11 citation statements)

References 35 publications

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“…An increasing number of publications report the isolation of Sphingobium sp. from different sources: rice seeds [ 158 ] and the rhizosphere of peanut [ 159 ], Ammophila breviligulata [ 160 ], Fortunella hindsii [ 161 ], and maize [ 162 ]. They are found in roots, leaves, and flowers, and have been shown to play a protective role against phytopatogens [ 156 , 163 ] and water deficits ( Sphingomonas sp.…”

Section: Discussionmentioning

confidence: 99%

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Bacterial Endophytes of Spring Wheat Grains and the Potential to Acquire Fe, Cu, and Zn under Their Low Soil Bioavailability

Makar

Kuźniar

Patsula

et al. 2021

Biology

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Wheat grains are usually low in essential micronutrients. In resolving the problem of grain micronutritional quality, microbe-based technologies, including bacterial endophytes, seem to be promising. Thus, we aimed to (1) isolate and identify grain endophytic bacteria from selected spring wheat varieties (bread Oksamyt myronivs’kyi, Struna myronivs’ka, Dubravka, and emmer Holikovs’ka), which were all grown in field conditions with low bioavailability of microelements, and (2) evaluate the relationship between endophytes’ abilities to synthesize auxins and the concentration of Fe, Zn, and Cu in grains. The calculated biological accumulation factor (BAF) allowed for comparing the varietal ability to uptake and transport micronutrients to the grains. For the first time, bacterial endophytes were isolated from grains of emmer wheat T. turgidum subsp. dicoccum. Generally, the 12 different isolates identified in the four varieties belonged to the genera Staphylococcus, Pantoea, Sphingobium, Bacillus, Kosakonia, and Micrococcus (NCBI accession numbers: MT302194—MT302204, MT312840). All the studied strains were able to synthesize the indole-related compounds (IRCs; max: 16.57 µg∙mL−1) detected using the Salkowski reagent. The IRCs produced by the bacterial genera Pantoea spp. and Bacillus spp. isolated from high-yielding Oksamyt myronivs’kyi and Holikovs’ka grains may be considered as one of the determinants of the yield of wheat and its nutritional characteristics.

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Section: Discussionmentioning

confidence: 99%

“…Cadmium-immobilizing endophytic Sphingomonas sp. strain C40 from rice seeds decreased Cd availability and Cd grain uptake by increasing the pH and polyamine production in the host rice [ 158 ]. Hence, the N-fixing and the other above-mentioned traits of Sphingomonas spp.…”

Section: Discussionmentioning

confidence: 99%

Bacterial Endophytes of Spring Wheat Grains and the Potential to Acquire Fe, Cu, and Zn under Their Low Soil Bioavailability

Makar

Kuźniar

Patsula

et al. 2021

Biology

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“…In agreement, the phylum Proteobacteria has previously been reported to be associated with Cd. A large number of isolated and identified strains that resisted Cd or absorbed Cd belong to Proteobacteria and include Burkholderia (Wang et al, 2020), Sphingomonas (Cheng et al, 2021), Pseudomona (Chellaiah, 2018), and Rhizobium (Li et al, 2019). Also many Gram-negative bacteria belonging to Proteobacteria such as Acinetobacter, Ralstonia (also named Cupriavidus) and Comamonas exclusively exist in a Cd-cultivation library of mine tailing (Zhang et al, 2007).…”

Section: Discussionmentioning

confidence: 99%

Cadmium Pollution Impact on the Bacterial Community Structure of Arable Soil and the Isolation of the Cadmium Resistant Bacteria

Zhao

Liu

et al. 2021

Front. Microbiol.

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Microorganisms play an important role in the remediation of cadmium pollution in the soil and their diversity can be affected by cadmium. In this study, the bacterial community in arable soil samples collected from two near geographical sites, with different degrees of cadmium pollution at three different seasons, were characterized using Illumina MiSeq sequencing. The result showed that cadmium is an important factor to affect the bacterial diversity and the microbial communities in the high cadmium polluted area (the site H) had significant differences compared with low cadmium polluted area (the site L). Especially, higher concentrations of Cd significantly increased the abundance of Proteobacteria and Gemmatimonas whereas decreased the abundance of Nitrospirae. Moreover, 42 Cd-resistant bacteria were isolated from six soil samples and evaluated for potential application in Cd bioremediation. Based on their Cd-MIC [minimum inhibitory concentration (MIC) of Cd2+], Cd2+ removal rate and 16S rDNA gene sequence analyses, three Burkholderia sp. strains (ha-1, hj-2, and ho-3) showed very high tolerance to Cd (5, 5, and 6 mM) and exhibited high Cd2+ removal rate (81.78, 79.37, and 63.05%), six Bacillus sp. strains (151-5,151-6,151-13, 151-20, and 151-21) showed moderate tolerance to Cd (0.8, 0.4, 0.8, 0.4, 0.6, and 0.4 mM) but high Cd2+ removal rate (84.78, 90.14, 82.82, 82.39, 81.79, and 84.17%). Those results indicated that Burkholderia sp. belonging to the phylum Proteobacteria and Bacillus sp. belonging to the phylum Firmicutes have developed a resistance for cadmium and may play an important role in Cd-contaminated soils. Our study provided baseline data for bacterial communities in cadmium polluted soils and concluded that Cd-resistant bacteria have potential for bioremediation of Cd-contaminated soils.

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“…In the third scenario, a combination of endophytic cadmium‐tolerant bacteria (ECdtB) from autochthonous populations from crop systems, such as it has been already tested in rice (Siripornadulsil and Siripornadulsil 2013 ; Cheng et al . 2021 ) some others in tomato (Madhaiyan et al . 2007 ), or in Mimosa pudica trees (Chen et al .…”

Section: Biotechnological Applications Of Cdtb In Agricultural Soilsmentioning

confidence: 96%

Cadmium‐tolerant bacteria: current trends and applications in agriculture

Bravo

Braissant

2021

Letters Applied Microbiology

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Significance and Impact of the Study: Crop production is adversely affected by the presence of heavy metals in soils dedicated to agriculture. These metals ultimately accumulate in seeds or edible parts and enter the human food chain. The application of cadmium (Cd)-tolerant bacteria capacities for Cd immobilization and sequestration, in combination with soil management and implementation of other agronomic practices, may reduce the Cd levels in farmlands.

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Cadmium-resistant and arginine decarboxylase-producing endophytic Sphingomonas sp. C40 decreases cadmium accumulation in host rice (Oryza sativa Cliangyou 513)

Cited by 31 publications

References 35 publications

Bacterial Endophytes of Spring Wheat Grains and the Potential to Acquire Fe, Cu, and Zn under Their Low Soil Bioavailability

Bacterial Endophytes of Spring Wheat Grains and the Potential to Acquire Fe, Cu, and Zn under Their Low Soil Bioavailability

Cadmium Pollution Impact on the Bacterial Community Structure of Arable Soil and the Isolation of the Cadmium Resistant Bacteria

Cadmium‐tolerant bacteria: current trends and applications in agriculture

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