Effects of Associative Microorganisms on Plant Growth and Resistance to Xenobiotics and Phytopathogens

Pigoleva, S. V.; Захарченко, Н. С.; Furs, O. V.; Tarlachkov, Sergey V.; Funtikova, T. V.; Филонов, А. Е.; Ариповский, А В; Dyachenko, O. V.; Buryanov, Yа. I.; Шевчук, Т. В.

doi:10.1134/s0003683820040134

Cited by 5 publications

(3 citation statements)

References 16 publications

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“…This finding accentuates the importance of microbial inoculation (biofertilization) for the bioavailability of nutrients in crops [ 21 , 53 , 54 ]. This availability is directly associated with organic acid production (solubilization of complexed nutrients) and nitrogen fixation [ 55 , 56 ]; however, microorganisms in general participate in (1) mineralization of soil organic matter and thus nutrient cycling [ 57 ], (2) improvement of soil structure [ 58 ], (3) interaction with other rhizosphere microorganisms [ 59 ], (4) production of bioactive compounds such as plant hormones and enzymes [ 59 , 60 ], and (5) control of phytopathogens [ 59 , 60 , 61 , 62 , 63 , 64 ].…”

Section: Discussionmentioning

confidence: 99%

Microbial Inoculation Improves Growth, Nutritional and Physiological Aspects of Glycine max (L.) Merr.

et al. 2022

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Considering a scenario where there is a low availability and increasing costs of fertilizers in the global agricultural market, as well as a finitude of important natural resources, such as phosphorus (P), this study tested the effect of the inoculation of rhizospheric or endophytic microorganisms isolated from Hymenaea courbaril and Butia purpurascens on the growth promotion of Glycine max (L.) Merr. The tests were conducted in a controlled greenhouse system, and the effects of biofertilization were evaluated using the following parameters: dry biomass, nutritional content, and photochemical and photosynthetic performance of plants. Seed biopriming was performed with four bacterial and four fungal isolates, and the results were compared to those of seeds treated with the commercial product Biomaphos®. Overall, microbial inoculation had a positive effect on biomass accumulation in G. max, especially in strains PA12 (Paenibacillus alvei), SC5 (Bacillus cereus), and SC15 (Penicillium sheari). The non-inoculated control plants accumulated less nutrients, both in the whole plant and aerial part, and had reduced chlorophyll index and low photosynthetic rate (A) and photochemical efficiency. Strains PA12 (P. alvei), SC5 (B. cereus), and 328EF (Codinaeopsis sp.) stood out in the optimization of nutrient concentration, transpiration rate, and stomatal conductance. Plants inoculated with the bacterial strains PA12 (P. alvei) and SC5 (B. cereus) and with the fungal strains 328EF (Codinaeopsis sp.) and SC15 (P. sheari) showed the closest pattern to that observed in plants treated with Biomaphos®, with the same trend of direction of the means associated with chlorophyll index, (A), dry mass, and concentration of important nutrients such as N, P, and Mg. We recommend the use of these isolates in field tests to validate these strains for the production of biological inoculants as part of the portfolio of bioinputs available for G. max.

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Section: Discussionmentioning

confidence: 99%

Microbial Inoculation Improves Growth, Nutritional and Physiological Aspects of Glycine max (L.) Merr.

et al. 2022

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“…Some of them have been reported in previous studies. Methylovorus (OTU3058) and Methylophilus (OTU3336), belonging to the family Methylophilaceae, were demonstrated to have a high tolerance to salinity stress [48] and could accelerate the growth of tobacco, potato, and tomato [49][50][51]. Ohareaibacter (OTU3280), belonging to the order Rhizobiales, could tolerate 0 to 2% NaCl [52], and its potential in growth-promoting on leguminous plants was suggested by the ability of the encoding of nitrogenase [53].…”

Section: Discussionmentioning

confidence: 99%

Rhizosphere Microbiota Promotes the Growth of Soybeans in a Saline–Alkali Environment under Plastic Film Mulching

Mao

Sun

Tao

et al. 2023

Plants

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The rhizosphere microbiota plays a critical and crucial role in plant health and growth, assisting plants in resisting adverse stresses, including soil salinity. Plastic film mulching is an important method to adjust soil properties and improve crop yield, especially in saline–alkali soil. However, it remains unclear whether and to what extent the association between these improvements and rhizosphere microbiota exists. Here, from a field survey and a greenhouse mesocosm experiment, we found that mulching plastic films on saline–alkali soil can promote the growth of soybeans in the field. Results of the greenhouse experiment showed that soybeans grew better in unsterilized saline–alkali soil than in sterilized saline–alkali soil under plastic film mulching. By detecting the variations in soil properties and analyzing the high-throughput sequencing data, we found that with the effect of film mulching, soil moisture content was effectively maintained, soil salinity was obviously reduced, and rhizosphere bacterial and fungal communities were significantly changed. Ulteriorly, correlation analysis methods were applied. The optimization of soil properties ameliorated the survival conditions of soil microbes and promoted the increase in relative abundance of potential beneficial microorganisms, contributing to the growth of soybeans. Furthermore, the classification of potential key rhizosphere microbial OTUs were identified. In summary, our study suggests the important influence of soil properties as drivers on the alteration of rhizosphere microbial communities and indicates the important role of rhizosphere microbiota in promoting plant performance in saline–alkali soil under plastic film mulching.

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“…Earlier, we reported the production of transgenic plants expressing antimicrobial peptide cecropin P1 gene that resulted in increased resistance against certain pathogens and stress factors (Zakharchenko et al 2013). Also, we successfully demonstrated diverse positive effects of tomato, sugar beet, white cabbage plants colonization with different symbiotic bacteria (Pigoleva et al 2009(Pigoleva et al , 2020.…”

Section: Introductionmentioning

confidence: 86%

The Brassica napus L. plants expressing antimicrobial peptide cecropin P1 are safe for colonization by beneficial associative microorganisms

Захарченко

Furs

Рукавцова

et al. 2021

Journal of Plant Interactions

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This work was aimed to study the opportunity of transgenic oilseed rape (Brassica napus L.), expressing the gene of antimicrobial peptide cecropin P1 (cecP1) to be inhabited with associative microorganisms Methylobacterium mesophilicum and Pseudomonas aureofaciens. Previously, resistance was demonstrated to the microbial pathogens:Erwinia carotovora B15, Pseudomonas syringae, Fusarium oxysporum, and Botrytis cinerea. Analysis of the fatty acid composition of transgenic plant seeds showed an increase in the proportion of unsaturated fatty acids. Plants studied showed increased photosynthetic activity in oxidative stress induced by paraquat instead of in oxidative stress and UV radiation compared to control ones. A study of the interaction of transgenic plants with the associative microorganisms showed that bacteria were located in all initially colonized plants, as well as in plants obtained after several passages of microproliferation. Accordingly, transgenic plants, containing the cecP1 gene were actively colonized by associative bacteria, indicating their safety for associative bacteria, indicating their safety for beneficial microorganisms.

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Effects of Associative Microorganisms on Plant Growth and Resistance to Xenobiotics and Phytopathogens

Cited by 5 publications

References 16 publications

Microbial Inoculation Improves Growth, Nutritional and Physiological Aspects of Glycine max (L.) Merr.

Microbial Inoculation Improves Growth, Nutritional and Physiological Aspects of Glycine max (L.) Merr.

Rhizosphere Microbiota Promotes the Growth of Soybeans in a Saline–Alkali Environment under Plastic Film Mulching

The Brassica napus L. plants expressing antimicrobial peptide cecropin P1 are safe for colonization by beneficial associative microorganisms

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