Characterization of plant growth-promoting traits of Enterobacter sp. and its ability to promote cadmium/lead accumulation in Centella asiatica L.

Li, Yi; Mo, Lijuan; Xiao-qin, Zhou; Yao, Yawei; Ma, Jiangming; Liu, Kehui; Yu, Fangming

doi:10.1007/s11356-021-15948-2

Cited by 15 publications

(2 citation statements)

References 69 publications

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“…They reported that in the Cd-stressed S. nigrum , the expression of IRT1 increased and suppressed the HMA, which led to a limit of the Cd deposition in the roots rather than shoots [ 14 ]. In addition to these, the microbe triggers phytohormone production and facilitates in the Cd detoxification system [ 42 , 43 ]. Chi et al [ 14 ] also reported similar stimulation of the plant growth and root development by stimulating the IAA accumulation in Cd-spiked S. nigrum plants with the inoculation of B. megaterium.…”

Section: Discussionmentioning

confidence: 99%

Application of Rhizobacteria, Paraburkholderia fungorum and Delftia sp. Confer Cadmium Tolerance in Rapeseed (Brassica campestris) through Modulating Antioxidant Defense and Glyoxalase Systems

Raihan

Rahman

Mahmud

et al. 2022

Plants

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We investigated the role of two different plant growth-promoting probiotic bacteria in conferring cadmium (Cd) tolerance in rapeseed (Brassica campestris cv. BARI Sarisha-14) through improving reactive oxygen species scavenging, antioxidant defense, and glyoxalase system. Soil, as well as seeds of rapeseed, were separately treated with probiotic bacteria, Paraburkholderia fungorum BRRh-4 and Delftia sp. BTL-M2. Fourteen-day-old seedlings were exposed to 0.25 and 0.5 mM CdCl2 for two weeks. Cadmium-treated plants resulted in a higher accumulation of hydrogen peroxide, increased lipid peroxidation, electrolyte leakage, chlorophyll damage, and impaired antioxidant defense and glyoxalase systems. Consequently, it reduced plant growth and biomass production, and yield parameters. However, probiotic bacteria-inoculated plants significantly ameliorated the Cd toxicity by enhancing the activities of antioxidant enzymes (ascorbate peroxidase, dehydroascorbate reductase, monodehydroascorbate reductase, glutathione reductase, glutathione peroxidase, and catalase) and glyoxalase enzymes (glyoxalase I and glyoxalase II) which led to the mitigation of oxidative damage indicated by reduced hydrogen peroxide, lipid peroxidation, and electrolyte leakage that ultimately improved growth, physiology, and yield of the bacterial inoculants rapeseed plants. When taken together, our results demonstrated the potential role of the plant probiotic bacteria, BRRh-4 and BTL-M2, in mitigating the Cd-induced damages in rapeseed plants.

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Section: Discussionmentioning

confidence: 99%

Application of Rhizobacteria, Paraburkholderia fungorum and Delftia sp. Confer Cadmium Tolerance in Rapeseed (Brassica campestris) through Modulating Antioxidant Defense and Glyoxalase Systems

Raihan

Rahman

Mahmud

et al. 2022

Plants

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“…Many Enterobacter strains are characterized as plant beneficial bacteria. Such procaryotic microbes promote the growth of their plant hosts under favored or adverse abiotic conditions by producing indole-acetic acid (IAA) (Park et al, 2015;Srisuk et al, 2018;Habibi et al, 2019;Li et al, 2022), siderophores (Mokracka et al, 2004;Nurjadi et al, 2021;Li et al, 2022), hydrocyanic acid (Mpongwana et al, 2016;Mahdi et al, 2020;Javaheri Safa et al, 2021), salicylic acid (Kang et al, 2015) plus exopolysaccharides (Sayyed et al, 2015;Niu et al, 2018;Dhanya et al, 2021), solubilizing phosphate (Adhikari et al, 2020;Roslan et al, 2020;Aeron et al, 2021), by fixing nitrogen (Kämpfer et al, 2005;Peng et al, 2009;El-Sayed et al, 2014), reducing Na + uptake (Um et al, 2017;Sarkar et al, 2018), and inducing the activity of enzymes with action as antioxidants (Andres-Barrao et al, 2017;Danish et al, 2020). At present, it has been demonstrated that some Enterobacter species exhibit inhibitory effects against the oomycete pathogen Pythium ultimum (Lohrke et al, 2002;Kageyama and Nelson, 2003;Windstam and Nelson, 2008), the fungal pathogens Fusarium moniliforme (Hinton and Bacon, 1995;Demirci et al, 2000;Rodrigues et al, 2018), F. oxysporum (El-Sayed et al, 2014Del Barrio-Duque et al, 2019;Abdelshafy Mohamad et al, 2020), Aspergillus niger (Yadav et al, 2016;Kaushik et al, 2017;<...…”

Section: Introductionmentioning

confidence: 99%

Gene sdaB Is Involved in the Nematocidal Activity of Enterobacter ludwigii AA4 Against the Pine Wood Nematode Bursaphelenchus xylophilus

Zhao

Yuan

Wang³

et al. 2022

Front. Microbiol.

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Bursaphelenchus xylophilus, a plant parasitic nematode, is the causal agent of pine wilt, a devastating forest tree disease. Essentially, no efficient methods for controlling B. xylophilus and pine wilt disease have yet been developed. Enterobacter ludwigii AA4, isolated from the root of maize, has powerful nematocidal activity against B. xylophilus in a new in vitro dye exclusion test. The corrected mortality of the B. xylophilus treated by E. ludwigii AA4 or its cell extract reached 98.3 and 98.6%, respectively. Morphological changes in B. xylophilus treated with a cell extract from strain AA4 suggested that the death of B. xylophilus might be caused by an increased number of vacuoles in non-apoptotic cell death and the damage to tissues of the nematodes. In a greenhouse test, the disease index of the seedlings of Scots pine (Pinus sylvestris) treated with the cells of strain AA4 plus B. xylophilus or those treated by AA4 cell extract plus B. xylophilus was 38.2 and 30.3, respectively, was significantly lower than 92.5 in the control plants treated with distilled water and B. xylophilus. We created a sdaB gene knockout in strain AA4 by deleting the gene that was putatively encoding the beta-subunit of L-serine dehydratase through Red homologous recombination. The nematocidal and disease-suppressing activities of the knockout strain were remarkably impaired. Finally, we revealed a robust colonization of P. sylvestris seedling needles by E. ludwigii AA4, which is supposed to contribute to the disease-controlling efficacy of strain AA4. Therefore, E. ludwigii AA4 has significant potential to serve as an agent for the biological control of pine wilt disease caused by B. xylophilus.

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Plant growth-promoting bacteria isolated from earthworms enhance spinach growth and its phytoremediation potential in metal-contaminated soils

Houida,

Yakkou,

Kaya

et al. 2023

Int Microbiol

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Characterization of plant growth-promoting traits of Enterobacter sp. and its ability to promote cadmium/lead accumulation in Centella asiatica L.

Cited by 15 publications

References 69 publications

Application of Rhizobacteria, Paraburkholderia fungorum and Delftia sp. Confer Cadmium Tolerance in Rapeseed (Brassica campestris) through Modulating Antioxidant Defense and Glyoxalase Systems

Application of Rhizobacteria, Paraburkholderia fungorum and Delftia sp. Confer Cadmium Tolerance in Rapeseed (Brassica campestris) through Modulating Antioxidant Defense and Glyoxalase Systems

Gene sdaB Is Involved in the Nematocidal Activity of Enterobacter ludwigii AA4 Against the Pine Wood Nematode Bursaphelenchus xylophilus

Plant growth-promoting bacteria isolated from earthworms enhance spinach growth and its phytoremediation potential in metal-contaminated soils

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