Comparison of Serendipita indica Inoculums and a Commercial Biofertilizer Effects on Physiological Characteristics and Antioxidant Capacity of Maize Under Drought Stress

Kaboosi, Esmaeel; Rahimi, Akbar; Abdoli, Mohammad Ali; Ghabooli, Mehdi

doi:10.1007/s42729-022-01091-5

Cited by 8 publications

(3 citation statements)

References 71 publications

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“…Furthermore, inoculation with Si was able to significantly reduce leaf H 2 O 2 and

levels as well as MDA concentrations, accompanied by a higher decrease under DS conditions than under WW conditions. Similar result was reported in maize plants under DS after Si inoculation ( Kaboosi et al., 2023 ). MDA is a by-product of membrane lipid damage under DS ( Pavlović et al., 2018 ).…”

Section: Discussionsupporting

confidence: 90%

Serendipita indica mitigates drought-triggered oxidative burst in trifoliate orange by stimulating antioxidant defense systems

Wang,

Cao,

Hashem

et al. 2023

Front. Plant Sci.

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Soil drought is detrimental to plant growth worldwide, particularly by triggering reactive oxygen species (ROS) burst. Serendipita indica (Si), a culturable root-associated endophytic fungus, can assist host plants in dealing with abiotic stresses; however, it is unknown whether and how Si impacts the drought tolerance of citrus plants. To unravel the effects and roles of Si on drought-stressed plants, trifoliate orange (Poncirus trifoliata L. Raf.; a citrus rootstock) seedlings were inoculated with Si and exposed to soil drought, and growth, gas exchange, ROS levels, antioxidant defense systems, and expression of genes encoding antioxidant enzymes and fatty acid desaturases in leaves were measured. Soil drought suppressed plant biomass, whereas Si inoculation significantly increased plant biomass (10.29%-22.47%) and shoot/root ratio (21.78%-24.68%) under ample water and drought conditions, accompanied by improved net photosynthetic rate (105.71%), water use efficiency (115.29%), chlorophyll index (55.34%), and nitrogen balance index (63.84%) by Si inoculation under soil drought. Soil drought triggered an increase in leaf hydrogen peroxide and superoxide anion levels, while Si inoculation significantly reduced these ROS levels under soil drought, resulting in lower membrane lipid peroxidation with respect to malondialdehyde changes. Furthermore, Si-inoculated seedlings under soil drought had distinctly higher levels of ascorbate and glutathione, as well as catalase, peroxidase, and glutathione peroxidase activities, compared with no-Si-inoculated seedlings. Si inoculation increased the expression of leaf PtFAD2, PtFAD6, PtΔ9, PtΔ15, PtFe-SOD, PtCu/Zn-SOD, PtPOD, and PtCAT1 genes under both ample water and soil drought conditions. Overall, Si-inoculated trifoliate orange plants maintained a low oxidative burst in leaves under drought, which was associated with stimulation of antioxidant defense systems. Therefore, Si has great potential as a biostimulant in enhancing drought tolerance in plants, particularly citrus.

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“…Furthermore, inoculation with Si was able to significantly reduce leaf H 2 O 2 and

Section: Discussionsupporting

confidence: 90%

Serendipita indica mitigates drought-triggered oxidative burst in trifoliate orange by stimulating antioxidant defense systems

Wang,

Cao,

Hashem

et al. 2023

Front. Plant Sci.

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“…An increasing body of research has demonstrated the potential of external microorganisms to enhance crop resilience against abiotic stresses, such as drought, heat, and salinity, as well as biotic stresses, such as soil-borne pathogen [25][26][27][28][29]. These microorganisms can serve as mineral-solubilizing microbial inoculums to improve soil texture, with strong ecological adaptability that makes them ideal for use in revegetation initiatives.…”

Section: Discussionmentioning

confidence: 99%

Mineral-Solubilizing Microbial Inoculums Promote <em>Robinia pseudoacacia</em> L. Growth by Optimizing the Rhizosphere Soil Microbial Community Structure

Zhang¹,

Jia²,

Li³

et al. 2023

Preprint

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The addition of mineral-solubilizing microbial inoculums is a kind of biological measure for vegetation restoration of rock mining areas. Its function is to accelerate soil weathering, improve soil fertility, improve the ability of plants to fix soil. Through understanding the response of plant rhizosphere microbial community to the mineral-solubilizing microbial inoculums, it is helpful to popularize the use of mineral-solubilizing microbial inoculums. However, little is known about the changes of plant rhizosphere soil microbial communities after the addition of mineral-solubilizing microbial inoculums. Therefore, the purpose of this study was to reveal the pasthways through which different mineral-solubilizing microbial inoculums positively affect underground part of R. pseudoacacia. A pot experiment was conducted to investigate the responses of rhizosphere soil bacterial and fungal communities in R. pseudoacacia by taking 32 samples from four different mineral-solubilizing microbial inoculums treatments. The results showed that the effect of mineral-solubilizing microbial inoculums on the structure of fungal community was greater than that of bacterial community. But the relative abundance of Proteobacteria was increased, which had a strong positive correlation with root nodulation. In terms of microbial diversity, mineral-solubilizing microbial inoculums had a greater effect on the diversity and evenness of bacterial community. It is worth noting that correlation analysis showed that Proteobacteria and Verrucomicrobia in bacteria and Ascomycota and Zoopagomycota in fungi were positively correlated with soil enzyme activity and plant growth. RDA analysis showed that the relative abundance of these two phyla in bacteria also had positive effects on plant root nodulation. Our results showed that the addition of mineral-solubilizing microbial inoculums can optimize the rhizosphere soil microbial community structure, promote R. pseudoacacia root nodulation, and enhance the nitrogen fixation capacity of plants. In addition, this study can provide a theoretical basis for the application of mineral-solubilizing microbial inoculums to a wide range of slope ecological restoration.

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“…The zone separating the two environments are facultative organisms, which carry out aerobic metabolism on the outside and anaerobic metabolism on the inside. They have tremendous biological potential due to specialised enzymes that can convert troublesome compounds into useful forms (Auriga 2021, Dobrzyński et al 2021, Kaboosi et al 2022.…”

Section: Introductionmentioning

confidence: 99%

Potential of Effective Microorganisms in the Aspect of Sustainable Development

Piotrowska,

Boruszko

2024

Rocznik Ochrona Środowiska

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Human activity has been impacting the environment for thousands of years. Progressing environmental pollution caused by human economic activity is associated with an increase in the concentration of trace elements and the formation of an excess of polycyclic aromatic hydrocarbons (PAHs). PAHs have always been present in the environment, but the development of civilisation and technology has resulted in their increase. PAHs easily penetrate plants, animals and the human body, which makes them a serious threat to human health and agriculture. Reducing the amount of polycyclic aromatic hydrocarbons in the soil is possible by introducing a microbiological preparation in the form of Effective Microorganisms (EM) into the soil. Some strains of microorganisms in EM can decompose chemical compounds, including PAHs. Through biodegradation, EM transforms harmful substances into less toxic forms. EM stimulates the activity of soil microflora, which naturally participates in the decomposition processes of organic substances, which contributes to improving soil quality and environmental protection. The following work presents the results of own research on analysing the impact of Effective Microorganisms on changes in the content of PAHs in the soil. It was observed that 75% of test samples in the form of soils after wheat cultivation in which EM was added had lower contents of 3,4,5-ring PAHs than their control samples. The work aims to analyse the potential of EM as a preparation that supports the natural capabilities of the ecosystem to reduce the amount of pollutants in the form of PAHs in the soil.

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Comparison of Serendipita indica Inoculums and a Commercial Biofertilizer Effects on Physiological Characteristics and Antioxidant Capacity of Maize Under Drought Stress

Cited by 8 publications

References 71 publications

Serendipita indica mitigates drought-triggered oxidative burst in trifoliate orange by stimulating antioxidant defense systems

Serendipita indica mitigates drought-triggered oxidative burst in trifoliate orange by stimulating antioxidant defense systems

Mineral-Solubilizing Microbial Inoculums Promote <em>Robinia pseudoacacia</em> L. Growth by Optimizing the Rhizosphere Soil Microbial Community Structure

Potential of Effective Microorganisms in the Aspect of Sustainable Development

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