Bacillus subtilis rhizobacteria ameliorate heat stress in the common bean

Lima, Bruna Coelho de; Bonifácio, Aurenívia; Neto, Francisco de Alcântara; Araújo, Fábio Fernando de; Araújo, Ademir Sérgio Ferreira de

doi:10.1016/j.rhisph.2022.100472

Cited by 7 publications

(4 citation statements)

References 23 publications

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“…In another experiment, the co-inoculation of B. amyloliquefaciens and AMF benefited the photosynthetic and transpiration rates, stomatal conductance, and yield of common beans under water stress. Finally, de Lima et al [ 140 ] observed that non-inoculated plants showed lower growth when exposed to high temperature (35 °C against 25 °C in the control) compared to plants inoculated with B. subtilis , which increased shoot biomass (40%), shoot:root ratio (30%), and number of leaves (25%) in plants subjected to thermal stress during the reproductive phase. Similarly, bacteria can also help plants cope with the stress caused by low temperature.…”

Section: Pgpr Benefits: Nutrition Enhancement and Tolerance To Abioti...mentioning

confidence: 99%

Contribution of Biofertilizers to Pulse Crops: From Single-Strain Inoculants to New Technologies Based on Microbiomes Strategies

Xavier

Jesus

Dias

et al. 2023

Plants

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Pulses provide distinct health benefits due to their low fat content and high protein and fiber contents. Their grain production reaches approximately 93,210 × 103 tons per year. Pulses benefit from the symbiosis with atmospheric N2-fixing bacteria, which increases productivity and reduces the need for N fertilizers, thus contributing to mitigation of environmental impact mitigation. Additionally, the root region harbors a rich microbial community with multiple traits related to plant growth promotion, such as nutrient increase and tolerance enhancement to abiotic or biotic stresses. We reviewed the eight most common pulses accounting for almost 90% of world production: common beans, chickpeas, peas, cowpeas, mung beans, lentils, broad beans, and pigeon peas. We focused on updated information considering both single-rhizobial inoculation and co-inoculation with plant growth-promoting rhizobacteria. We found approximately 80 microbial taxa with PGPR traits, mainly Bacillus sp., B. subtilis, Pseudomonas sp., P. fluorescens, and arbuscular mycorrhizal fungi, and that contributed to improve plant growth and yield under different conditions. In addition, new data on root, nodule, rhizosphere, and seed microbiomes point to strategies that can be used to design new generations of biofertilizers, highlighting the importance of microorganisms for productive pulse systems.

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Section: Pgpr Benefits: Nutrition Enhancement and Tolerance To Abioti...mentioning

confidence: 99%

Contribution of Biofertilizers to Pulse Crops: From Single-Strain Inoculants to New Technologies Based on Microbiomes Strategies

Xavier

Jesus

Dias

et al. 2023

Plants

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“…Although deficit irrigation represents a limiting factor in horticulture, researchers' interest in assessing protocols to save water in agriculture has increased [17,22]. To this aim, the use of helpful microorganisms, such as plant-growth-promoting rhizobacteria (PGPR), added in the rhizosphere, has been shown to increase plants' potential resistance to abiotic stresses such as water shortage in a number of crops [11], including tomato wheat, rice [23], and common bean [24]. The naturally occurring soil-dwelling microbiota, in fact, represents a useful way to establish long-term resilient farming systems [25].…”

Section: Introductionmentioning

confidence: 99%

“…According to scientific literature, [23,24,33], common bean, Phaseolus vulgaris L., has a high agronomic interest worldwide [34]. It belongs to the Fabaceae family, and similar to other legume crops, it has a key role in improving soil fertility by boosting nitrogen input by symbiotic N fixation [35].…”

Section: Introductionmentioning

confidence: 99%

Use of Bioinoculants Affects Variation in Snap Bean Yield Grown under Deficit Irrigation

et al. 2023

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The use of beneficial microorganisms, such as plant growth promoting rhizobacteria (PGPR) and mycorrhizal fungi, for organic farming could improve the productivity and the resilience of vegetable crops. Both PGPR and PGPF are allowed for organic farming, and they represent new important tools for regenerating poor and marginal soils in transition to environmentally friendly farming. In the experiment, the effects of PGPM-based products were evaluated on snap bean in combination with two irrigation regimes. The experimental design adopted was split-plot, with the main plot represented by the irrigation regime (reintegration of 100 and 60% of the ETc), the sub-plot by the microbial consortia, and finally the sub-sub-plot by genotype (‘Domino’ and ‘Maxi’). Seeds were sown in a cold greenhouse and the growing cycle finished after 86 days from sowing. The results showed a significant increase of the yield due to the application of PGPM compared to the control. The deficit irrigation applied (ETc 60%) affected plants growth in the two genotypes and their related production differently (in average 2.20 kg m−2 for Domino and 3.63 kg m−2 for Maxi), showing a positive effect of PGPM on yield (in average 2.47 kg m−2 without PGPM and 3.36 kg m−2 with PGPM) and product quality. Furthermore, an interesting negative correlation between the number of nodules and the yield was also observed, as a consequence of their early outcome which increased plant productivity in relation to the experimental factors.

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“…The bacteria B. subtilis can effectively fulfill its function under long-term stress conditions due to the formation of long-living and stress-tolerant spores [27]. During the growth and metabolism processes, B. subtilis can induce plants to produce plant hormones such as Indole acetic acid (IAA) to promote plant growth [28,29] and increase crop yield [30][31][32][33]. Moreover, B. subtilis can improve the soil structure by secreting extracellular polymeric substances, which can form hydrogen bonds with soil water to keep more water in the soil [34].…”

Section: Introductionmentioning

confidence: 99%

Growth and Yield Response and Water Use Efficiency of Cotton under Film-Mulched Drip Irrigation to Magnetized Ionized Water and Bacillus subtilis in Saline Soil in Xinjiang

et al. 2023

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In irrigated agriculture, the combination of multiple regulation measures is an effective method to improve saline soil and promote crop growth. Magnetized ionized water irrigation is considered a promising irrigation water activation technique, while the use of Bacillus subtilis for soil amelioration is environmentally friendly. In this study, magnetized ionized water irrigation and B. subtilis were used to promote cotton growth under film-mulched drip irrigation (FMDI) in saline soil. A two-year field experiment was conducted to investigate the effects of differing B. subtilis amounts under two irrigation water types (non-magnetized-ionized water (NMIW) and magnetized ionized water (MIW)) on the growth (plant height, leaf area index, shoot dry matter and chlorophyll content) and the yield of cotton, as well as the soil water content, salts accumulation, water use efficiency (WUE) and irrigation water use efficiency (IWUE) under FMDI in a saline soil in southern Xinjiang. Five amounts of B. subtilis (0, 15, 30, 45 and 60 kg ha−1) under NMIW (designated as B0, B1, B2, B3 and B4) and MIW (designated as M, MB1, MB2, MB3 and MB4) were applied to the field experiments. The results showed that MIW and B. subtilis increased soil water content and reduced salts accumulation in the 0–40 cm soil layers compared with B0. Moreover, the two measures significantly (p < 0.01) increased cotton plant height, leaf area index, shoot dry matter and chlorophyll content compared with B0. Seed cotton yield, WUE and IWUE were also observed to significantly increase (p < 0.05). Compared with the NMIW treatments, the MIW treatments increased seed cotton yield by 2.1–12.2%, increased WUE by 0.2–9.0%, and increased IWUE by 2.1–12.2%. Under MIW, with the B. subtilis amount as an independent variable, quadratic function relationships with seed cotton yield, WUE and IWUE were established. By taking the first derivative of the quadratic function, the highest seed cotton yield, WUE and IWUE were obtained with the B. subtilis amounts of 51.8, 55.0 and 51.4 kg ha−1, respectively. Based on comprehensive consideration of seed cotton yield, WUE, IWUE and salts accumulation in soil, 51.4 kg ha−1 of B. subtilis under MIW treatment is recommended for cotton cultivated under FMDI in a saline soil of southern Xinjiang, China.

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Bacillus subtilis rhizobacteria ameliorate heat stress in the common bean

Cited by 7 publications

References 23 publications

Contribution of Biofertilizers to Pulse Crops: From Single-Strain Inoculants to New Technologies Based on Microbiomes Strategies

Contribution of Biofertilizers to Pulse Crops: From Single-Strain Inoculants to New Technologies Based on Microbiomes Strategies

Use of Bioinoculants Affects Variation in Snap Bean Yield Grown under Deficit Irrigation

Growth and Yield Response and Water Use Efficiency of Cotton under Film-Mulched Drip Irrigation to Magnetized Ionized Water and Bacillus subtilis in Saline Soil in Xinjiang

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