Characterization of plant growth-promoting alkalotolerant Alcaligenes and Bacillus strains for mitigating the alkaline stress in Zea mays

Dixit, Vijay Kant; Misra, Shikha; Mishra, Shaunak; Tewari, Shri Krishna; Joshi, Namita; Chauhan, Puneet Singh

doi:10.1007/s10482-020-01399-1

Cited by 50 publications

(19 citation statements)

References 59 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, the authors did not reveal the reason why the strain performed better than the other strains in stress conditions. Such tolerance has also been observed in alfalfa and maize (Dixit et al, 2020;Liu et al, 2019). Dixit et al (2020) claimed that there was more improvement of the alkali tolerance in maize plants by Bacillus sp.…”

Section: Tomatomentioning

confidence: 71%

See 1 more Smart Citation

The ACC deaminase‐producing plant growth‐promoting bacteria: Influences of bacterial strains and ACC deaminase activities in plant tolerance to abiotic stress

Naing

Maung

Kim

2021

Physiologia Plantarum

View full text Add to dashboard Cite

Global climate change results in frequent occurrences and/or long durations of abiotic stress. Field grown plants are affected by abiotic stress, and they modulate ethylene in response to abiotic stress exposure and use it as a signaling molecule in stress tolerance mechanisms. However, frequent occurrences and/or long durations of stress conditions can cause plants to induce ethylene levels higher than their thresholds, resulting in a reduction of plant growth and crop productivity. The use of plant growth‐promoting bacteria (PGPB) that produce 1‐aminocyclopropane‐1‐carboxylate (ACC) deaminase has increased in various plant species to ameliorate the deleterious effects of stress‐induced ethylene and promote plant growth despite abiotic stress conditions. Unfortunately, there are restrictions that limit the use of ACC deaminase‐producing PGPB to protect plants from abiotic stresses. This review describes how abiotic stress induces ethylene and how stress‐induced ethylene adversely affects plant growth. In addition, this review emphasizes the importance of the compatibility of PGPB strains and specific host plants and ACC deaminase activities in the reduction of stress ethylene and the promotion of plant growth, based on the research published in the last 10 years. Moreover, due to the restrictions in PGPB use, this review highlights the potential generation of transgenic plants expressing the AcdS gene that encodes the ACC deaminase enzyme as a substitute for PGPB in the future to support and uplift agricultural sustainability and food security globally.

show abstract

Section: Tomatomentioning

confidence: 71%

“…Such tolerance has also been observed in alfalfa and maize (Dixit et al, 2020;Liu et al, 2019). Dixit et al (2020) claimed that there was more improvement of the alkali tolerance in maize plants by Bacillus sp. NBRI YN4.4 than by other strains (Alcaligenes sp.…”

Section: Tomatomentioning

confidence: 71%

The ACC deaminase‐producing plant growth‐promoting bacteria: Influences of bacterial strains and ACC deaminase activities in plant tolerance to abiotic stress

Naing

Maung

Kim

2021

Physiologia Plantarum

View full text Add to dashboard Cite

show abstract

“…These nutrient deficiencies are common in arable lands around the world [2][3][4][5][6][7] and have negative impacts on many aspects of human health, including growth, reproduction, immune responses, and the development of neural behaviors [8][9][10][11][12]. It has been documented that the ability of plants to acquire sufficient nutrients depends in part on the soil's content of organic matter, the production of root exudates, and the root-microorganism relationship [13][14][15]. Organic matter incorporated in the soil competes with P at adsorption sites [16,17], and thus improves P availability in the soil.…”

Section: Introductionmentioning

confidence: 99%

Effect of Biochar and Microbial Inoculation on P, Fe, and Zn Bioavailability in a Calcareous Soil

et al. 2022

View full text Add to dashboard Cite

To identify effective ways of increasing the yield of crops grown in nutrient-poor calcareous soils, the combined effects of biochar addition and inoculation with plant growth promoting rhizobacteria (PGPR) and arbuscular mycorrhizal fungi (AMF) on wheat growth and soil properties were investigated under rhizobox conditions. Measured soil properties included pH, electrical conductivity (EC), organic matter content (OM), the availability of P, Fe, and Zn in the rhizosphere, and the uptake of these elements by plants. Combined biochar addition and microbial inoculation were shown to significantly increase the concentration of available forms of P, Fe, and Zn in the soil when compared to non-biochar treatments. The highest soil pH (7.82) was observed following biochar addition without microbial inoculation. The EC following biochar addition and PGPR inoculation was significantly higher than the other treatments, and the soil OM content was highest when combining AMF inoculation with biochar addition. The available P content after AMF inoculation combined with biochar addition was 27.81% higher than the control conditions, and AMF inoculation increased Fe and Zn bioavailability by factors of 2.38 and 1.29, respectively, when combined with biochar addition relative to AMF inoculation alone. The simultaneous biochar addition and PGPR inoculation significantly increased P uptake by the plants. The highest shoot Fe and Zn uptake rates were observed after a simultaneous application of biochar and PGPR inoculation. Under these conditions, shoot uptake was higher than seen when combining biochar addition with AMF inoculation by factors of 1.64 and 1.21, respectively. In general, it can be concluded that combining inoculation with growth-promoting bacteria and biochar addition can effectively improve nutrient availability to plant and soil conditions.

show abstract

“…This increases the relative humidity in plants and helps maintain ion homeostasis (Soleimani et al, 2018) which increased wheat growth. Several other mechanisms are also reported (Figure 2) by which PGPM alleviate abiotic stress in plants, such as by modulating hormones, enzymes, photosynthesis, secretion of organic acids and secondary metabolites (Bisht et al, 2019;Dixit et al, 2020). Moreover, rhizobacteria are involved in cycling of key nutrients such as N and C, which ensures long term reserves of nutrients in the soil.…”

Section: Alkalinitymentioning

confidence: 97%

The Roles of Plant Growth Promoting Microbes in Enhancing Plant Tolerance to Acidity and Alkalinity Stresses

Msimbira

Smith

2020

Front. Sustain. Food Syst.

236

View full text Add to dashboard Cite

Plant growth often occurs under a range of stressful conditions, including soil acidity and alkalinity. Hydrogen ion concentration, which determines pH of the soil, regulates the entire chemistry of plant nutrient colloidal solutions. Beyond certain levels of pH, multiple stresses such as hydrogen ion toxicity, and nutrient imbalance, toxicities and deficiencies are induced in plants. Breeding for stress coupled with suitable agronomic practices has been a way to deal with this situation in agriculture. However, plant growth promoting microbes (PGPM) have shown potential as sustainable plant growth enhancers and have potential to help with a range of stresses in their environment. Considering the long-term evolutionary relationships between plants and microbes, it is probably that much remains unknown about potential benefits of microbes that could be harnessed from PGPM. This article reviews the current understanding of acidity and alkalinity stress effects on plants and various approaches have or could address these stresses. This review provides a detailed account of the current understanding regarding the role of PGPM in acidity and alkalinity stress management, including when agronomic practices and plant breeding are combined. Approaches already evaluated have shown limitations because acidity and alkalinity in soils are gradual and progressive conditions. Greater exploitation of PGPM in this regard, would be interesting to explore as they have the potential to address multiple stresses in a more sustainable fashion. Future crop production will require further breeding for pH stress resistance, but also implementation of microbial technologies that provide enhanced tolerance to pH stress.

show abstract

Characterization of plant growth-promoting alkalotolerant Alcaligenes and Bacillus strains for mitigating the alkaline stress in Zea mays

Cited by 50 publications

References 59 publications

The ACC deaminase‐producing plant growth‐promoting bacteria: Influences of bacterial strains and ACC deaminase activities in plant tolerance to abiotic stress

The ACC deaminase‐producing plant growth‐promoting bacteria: Influences of bacterial strains and ACC deaminase activities in plant tolerance to abiotic stress

Effect of Biochar and Microbial Inoculation on P, Fe, and Zn Bioavailability in a Calcareous Soil

The Roles of Plant Growth Promoting Microbes in Enhancing Plant Tolerance to Acidity and Alkalinity Stresses

Contact Info

Product

Resources

About