Alleviation of Drought-Induced Oxidative Stress in Wheat Plants Under the Influence of Endophytic Bacteria

Allagulova, Ch.R.; Lastochkina, Oksana

doi:10.31163/2618-964x-2020-3-2-129-134

Cited by 3 publications

(8 citation statements)

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“…The manifestation of the physiological effect of PGPB on plants occurs through interrelated direct and indirect mechanisms [ 1 ], stimulation of plant growth through improved bioavailability of macro/microelements (nitrogen fixation, phosphate solubilization, iron sequestration), the production of phytohormones and regulation of their level in the host plant, and induction of systemic resistance and tolerance to stresses [ 1 , 35 , 36 , 37 ]. Numerous studies have shown that beneficial bacteria could alleviate the adverse effects of drought on the growth and development of varied plants including wheat [ 1 , 9 , 10 , 16 , 19 , 35 ]. For example, wheat plants inoculated with Azospirillum brasilense Sp245 were characterized by an increase in the linear dimensions of the coleoptile, fresh weight, and an improvement in the indicators of the water status of seedlings in comparison with control samples under drought [ 38 ].…”

Section: Discussionmentioning

confidence: 99%

“…To date, extensive information has been accumulated on the ability of PGPB including B. subtilis to trigger the antioxidant system (AOS), which leads to an increase in drought tolerance in the associated host plant [ 1 , 9 , 16 , 46 ]. It was revealed that inoculation with Lactobacillus plantarum activated catalase activity and increased the integral antioxidant capacity in wheat seedlings [ 10 ]. Bacillus spp.…”

Section: Discussionmentioning

confidence: 99%

“…Bacillus spp. and Arthrobacter pascens increased the activity of antioxidant enzymes (peroxidase, catalase, superoxide dismutase, and ascorbate-peroxidase) in maize and wheat plants [ 10 ]. Our results also showed that B. subtilis 10-4 significantly decreased drought-induced EL and lipid peroxidation in wheat plants (DT and DS cultivars) ( Figure 6 ), however, the most pronounced protective effect was observed for plants of DT cv.…”

Section: Discussionmentioning

confidence: 99%

“…At present, positive effects of PGPB on plant growth and development under different abiotic stresses (drought, extreme temperatures, salinity, UV radiation, etc.) have been observed in numerous plants including wheat [ 1 , 2 , 7 , 10 , 11 ]. Among PGPB, special attention is given to endophytic bacteria, in particular Bacillus subtilis , which colonizes the internal host tissues and positively influence plant metabolism from inside during the entire process of ontogenesis [ 1 , 12 ].…”

Section: Introductionmentioning

confidence: 99%

“…The underlying mechanisms of interaction between endophytic bacteria and host plants under abiotic stresses are mainly unknown. According to present knowledge, the growth-stimulating and anti-stress effects of PGPB including B. subtilis on plants are based on multiple mechanisms [ 1 , 8 , 9 , 10 ]. The beneficial plant-endophyte associations may improve plant growth and development through direct and indirect mechanisms: by enhancing mineral uptake, diluting pathogen access through biological competition, producing a variety of bioactive compounds (auxins, biosurfactants, siderophores, enzymes, etc.…”

Section: Introductionmentioning

confidence: 99%

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Seed Priming with Endophytic Bacillus subtilis Modulates Physiological Responses of Two Different Triticum aestivum L. Cultivars under Drought Stress

Lastochkina

Garshina

Ivanov

et al. 2020

Plants

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The protective effects against drought stress of the endophytic bacterium Bacillus subtilis 10-4 were measured by studying the priming response in two wheat (Triticum aestivum L.)—Ekada70 (E70) and Salavat Yulaev (SY)—lines, tolerant and susceptible to drought, respectively. B. subtilis 10-4 improved germination and growth parameters under normal conditions in both cultivars with the most pronounced effect observed in cv. E70. Under drought conditions, B. subtilis 10-4 significantly ameliorated the negative impact of stress on germination and growth of cv. E70, but had no protective effect on cv. SY. B. subtilis 10-4 induced an increase in the levels of photosynthetic chlorophyll (Chl) a, Chl b, and carotenoids (Car) in the leaves of cv. E70, both under normal and drought conditions. In cv. SY plants, bacterial inoculation decreased the contents of Chl a, Chl b, and Car under normal conditions, but pigment content were almost recovered under drought stress. B. subtilis 10-4 increased water holding capacity (WHC) of cv. E70 (but did not affect this parameter in cv. SY) and prevented the stress-induced decline in WHC in both cultivars. Notably, B. subtilis 10-4 increased endogenous salicylic acid (SA) concentration in both cultivars, especially in cv. E70. Moreover, B. subtilis 10-4 reduced drought-induced endogenous SA accumulation, which was correlated with the influence of endophyte on growth, indicating a possible involvement of endogenous SA in the implementation of B. subtilis-mediated effects in both cultivars. Overall, B. subtilis 10-4 inoculation was found to increase drought tolerance in seedlings of both cultivars, as evidenced by decreased lipid peroxidation, proline content, and electrolyte leakage from tissues of wheat seedlings primed with B. subtilis 10-4 under drought conditions.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Seed Priming with Endophytic Bacillus subtilis Modulates Physiological Responses of Two Different Triticum aestivum L. Cultivars under Drought Stress

Lastochkina

Garshina

Ivanov

et al. 2020

Plants

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Study of the Influence of Endophytic Bacteria of the Genus Bacillus on the Growth and Stress Resistance of Spring Wheat and Soybean Seedls

Shaymullina,

Safin,

Egorova

et al. 2023

Vestnik of Kazan State Agrarian University

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The studies were carried out to assess the indicators of seed germination, root length, level of lipid peroxidation, content of photosynthetic pigments and free proline in monocotyledonous and dicotyledonous crops when seeds were treated with strains of endophytic bacteria of the genus Bacillus. The scheme of vegetation experiments included modeling of 30% drought on sand and pre-sowing treatment of seeds of spring wheat variety Yoldyz and soybean variety Sultana with endophytic bacteria: Bacillus subtilis KS-55 AU, Bacillus cereus KS-56 AU, Bacillus pumilus KS-57 AU, Bacillus megaterium KS- 58 AU, Bacillus cereus KS-59 AU, Bacillus megaterium KS-60 AU and Bacillus pumilus KS-61 AU. Bacteria better stimulated root growth when using a titer of 1×106 cells in 1 ml of the drug (the increase was 0.6 cm on soybean with Bacillus subtilis KS-55 AU and Bacillus megaterium KS-60 AU and 0.4 cm on wheat with Bacillus cereus KS -56 AU, Bacillus cereus KS-59 AU and Bacillus pumilus KS-61 AU). In wheat, the Bacillus subtilis KS-55 AU strain stood out, treatment with which contributed to an increase in germination by 30%, a decrease in the level of lipid peroxidation by 46%, an increase in the amount of free proline by 148% and photosynthetic pigments by 6%, relative to the control variant. On soybean plants, the strain Bacillus subtilis KS-55 AU contributed to an increase in germination by 40%, Bacillus cereus KS-59 AU contributed to a decrease in the level of lipid peroxidation by 47% and the accumulation of proline by 73%, and Bacillus pumilus KS-61 AU increased the amount of total chlorophyll by 141%, relative to the control variant. Thus, we can conclude that the above strains of endophytic bacteria improve the growth and development of spring wheat and soybean seedlings, and also serve as inducers of crop resistance to soil drought.

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Modeling the effectiveness of bacillus subtilis strains depending on natural and climatic factors in the soft wheat cultivation

Kolesnikov,

Novikova,

Pavlyushin

et al. 2023

Rossijskaâ selʹskohozâjstvennaâ nauka

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The studies were carried out in 2017-2022 in order to identify natural and climatic factors that can influence the effectiveness of B. subtilis strains in relation to morphometric indicators and soft wheat productivity, the diseases development. The responsiveness of Leningradka 6, k-64900 spring wheat to the microbiological preparation Vitaplan, SP (titer of viable cells ×1011 CFU/g) and cultural liquid (CL) of the B. subtilis VKM B-2604D and B. subtilis VKM B-2605D (at a ratio of 1:1 with the titer of viable cells ×1010 CFU/ml). In the field conditions of the North- West of the Russian Federation, wheat seeds were treated before sowing and plants were sprayed three times during the growing season. The effectiveness of bacterial strains in relation to productivity and especially dangerous wheat diseases depended more on the indicators of moisture availability of the growing season. This was confirmed by the results of multidimensional scaling, correlation, factor analysis of indicators. In the variant «Vitaplan, SP» in F1, high positive factor loads were revealed for the precipitation amount in June, July, August, HTC in July, relative humidity in June (0.73…0.93), plant phase, plant height, area of ag and pre-flag leaves, vegetative part weight (0.71…0.80), and when using CL «B. subtilis VKM V-2604D + B. subtilis VKM B-2605D» - for the precipitation amount in June, August, HTC in July and August (0.71…0.88), productive bushiness, root weight, spike length, spikelets number per spike, grains number, spike grain weight, biological, potential yield (0.71…0.85). The B. subtilis strains application allowed to increase biological and potential yields by 32.5± 7.2 % and 24.3±7.0 %, and to reduce the intensity of diseases development (root rot - by 11.7 ± 1.6 %; powdery mildew, brown and yellow rust - by 7.6 ± 0.7 %), however, the effectiveness of bacterial strains significantly depended on the climatic factors of wheat growing season.

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Alleviation of Drought-Induced Oxidative Stress in Wheat Plants Under the Influence of Endophytic Bacteria

Cited by 3 publications

References 0 publications

Seed Priming with Endophytic Bacillus subtilis Modulates Physiological Responses of Two Different Triticum aestivum L. Cultivars under Drought Stress

Seed Priming with Endophytic Bacillus subtilis Modulates Physiological Responses of Two Different Triticum aestivum L. Cultivars under Drought Stress

Study of the Influence of Endophytic Bacteria of the Genus Bacillus on the Growth and Stress Resistance of Spring Wheat and Soybean Seedls

Modeling the effectiveness of bacillus subtilis strains depending on natural and climatic factors in the soft wheat cultivation

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