Exploring plant‐microbe interactions of the rhizobacteria <i>Bacillus subtilis</i> and <i>Bacillus mycoides</i> by use of the CRISPR‐Cas9 system

Yi, Yanglei; Li, Zhibo; Cui, Song; Kuipers, Oscar P.

doi:10.1111/1462-2920.14305

Cited by 47 publications

(32 citation statements)

References 62 publications

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“…However, this might also derail the sustainability goal of AP [44]. Alternative ways of enhancing AP crop productivity without nutrient supplementation, such as anaerobic digestion of sludge that returns nutrients lost through solid waste [13], use of substrate-based systems which enhance microbial populations for improved nutrient uptake [45], and proper pH management [46][47][48], should be encouraged.…”

Section: Crop Yield Across Studiesmentioning

confidence: 99%

Comparisons between Aquaponic and Conventional Hydroponic Crop Yields: A Meta-Analysis

et al. 2019

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Aquaponic is a relatively new system of farming, which has received much research attention due to its potential for sustainability. However, there is no consensus on comparability between crop yields obtained from aquaponics (AP) and conventional hydroponics (cHP). Meta-analysis was used to synthesize the literature on studies that compared crop yields of AP and cHP. Factors responsible for differences were also examined through subgroup analysis. A literature search was conducted in five databases with no time restriction in order to capture any publication on AP and cHP crop yield comparisons. The search was, however, limited to journal and conference articles published in English. Study characteristics and outcome measures of food crops were extracted. A natural log response ratio effect size measure was used to transform study outcomes. An unweighted meta-analysis was conducted through bootstrapping to calculate overall effect size and its confidence interval. Between-study heterogeneity (I2) was estimated using a random effects model. Subgroup and meta-regression were used to assess moderators, in an attempt to explain heterogeneity in the effect size. The results showed that although crop yield in AP was lower than conventional cHP, the difference was not statistically significant. However, drawing conclusions on the overall effect size must be done with caution due to the use of unweighted meta-analysis. There were statistically significant effects of aquatic organism, hydroponic system type, and nutrient supplementation used in the studies on crop yield comparisons. Nutrient supplementation, particularly, led to on average higher crop yield in AP relative to cHP. These findings are a vital information source for choosing factors to include in an AP study. These findings also synthesize the current trends in AP crop yields in comparison with cHP.

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Section: Crop Yield Across Studiesmentioning

confidence: 99%

Comparisons between Aquaponic and Conventional Hydroponic Crop Yields: A Meta-Analysis

et al. 2019

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“…Bacillus halotolerans , is a rhizobacterium with the potential to promote plant growth and increase tolerance to salinity stress. The availability of an efficient genome analysis is currently improving the application of new isolated Bacillus strains as biofertilizers …”

Section: Introductionmentioning

confidence: 99%

“…The availability of an efficient genome analysis is currently improving the application of new isolated Bacillus strains as biofertilizers. 14 The present study aimed to analyse the effect on the plant growth development and on the phenolic composition and mineral content of coriander plants after the inoculation of a probiotic bacterial strain from genus Bacillus under saline conditions.…”

Section: Introductionmentioning

confidence: 99%

Increase in phenolic compounds of Coriandrum sativum L. after the application of a Bacillus halotolerans biofertilizer

et al. 2020

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BACKGROUND There is an urgent need for a new sustainable way of satisfying the increasing demand for food worldwide. One of the main challenges is replacing chemical fertilizers with biofertilizers, which include plant root‐associated beneficial microorganisms. The present study reports, for the first time, the effects of SCCPVE07 bacterial strain with respect to improving not only plant development, but also the nutritional content and bioactive compounds content of Coriandrum sativum L., one of the most economically important crops, even for plant growth under salinity stress. RESULTS Innoculated coriander plants (C. sativum L.) showed an increase in potassium, carbon, calcium and iron content. A significant improvement in phenolic compounds contents was also observed. The contents of 5‐O‐caffeoylquinic acid, cinnamic acid, 4‐methoxy‐cinnamic acid hexoside, K‐3‐O rutinoside, Q‐3‐O‐rutinoside, Q‐3‐O‐glucoside and Q‐3‐O‐glucuronide were significantly enhanced. Moreover, an efficient bacterial root colonization and a noted growth promotion were demonstrated. Bacterial genome was sequenced and analysed. Gene coding related to Plant growth promotion (PGP) mechanisms and proteins involved in plant defence from salinity or in the metabolism of phenolic compounds, such as quercetin 2,3‐dioxygenase and phenolic acid decarboxylase, were identified. CONCLUSION The results obtained in the present study show, for the first time, the beneficial effects of the inoculation of a bacterial Bacillus halotolerans biofertilizer on coriander crops with respect to increasing the content in bioactive compounds and plant development. © 2020 Society of Chemical Industry

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“…are preferred because they produce endospores, making them very tolerant to desiccation and heat [ 4 , 5 ]. Bacillus subtilis , a nonpathogenic and endophytic bacteria that exists widely in nature, has the ability to inhibit a variety of plant diseases [ 6 ]. B. subtilis is an important microbial population in agricultural soil and plant rhizospheres, which has broadspectrum antimicrobial activity and strong resistance to stress [ 7 ].…”

Section: Introductionmentioning

confidence: 99%

Isolation, heterologous expression, and purification of a novel antifungal protein from Bacillus subtilis strain Z-14

Zhang

Guo

et al. 2020

Microb Cell Fact

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Background Wheat sheath blight, a soil borne fungal disease caused by Rhizoctonia cerealis, is considered as one of the most serious threats to wheat worldwide. Bacillus subtilis Z-14 was isolated from soil sampled from a wheat rhizosphere and was confirmed to have strong antifungal activity against R. cerealis. Results An antifungal protein, termed F2, was isolated from the culture supernatant of Z-14 strain using precipitation with ammonium sulfate, anion exchange chromatography, and reverse phase chromatography. Purified F2 had a molecular mass of approximately 8 kDa, as assessed using sodium dodecyl sulfate polyacrylamide gel electrophoresis. Edman degradation was used to determine the amino acid sequence of the N-terminus, which was NH2ASGGTVGIYGANMRS. This sequence is identical to a hypothetical protein RBAM_004680 (YP_001420098.1) synthesized by B. amyloliquefaciens FZB42. The recombinant F2 protein (rF2) was heterologously expressed in the yeast host Pichia pastoris, purified using a Niaffinity column, and demonstrated significant antifungal activity against R. cerealis. The purified rF2 demonstrated broad spectrum antifungal activity against different varieties of fungi such as Fusarium oxysporum, Verticillium dahliae, Bipolaris papendorfii, and Fusarium proliferatum. rF2 was thermostable, retaining 91.5% of its activity when incubated for 30 min at 100 °C. Meanwhile, rF2 maintained its activity under treatment by proteinase K and trypsin and over a wide pH range from 5 to 10. Conclusions A novel antifungal protein, F2, was purified from biocontrol Bacillus subtilis Z-14 strain fermentation supernatant and heterologously expressed in Pichia pastoris to verify its antifungal activity against R. cerealis and the validity of the gene encoding F2. Considering its significant antifungal activity and stable characteristics, protein F2 presents an alternative compound to resist fungal infections caused by R. cerealis.

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Exploring plant‐microbe interactions of the rhizobacteria Bacillus subtilis and Bacillus mycoides by use of the CRISPR‐Cas9 system

Cited by 47 publications

References 62 publications

Comparisons between Aquaponic and Conventional Hydroponic Crop Yields: A Meta-Analysis

Comparisons between Aquaponic and Conventional Hydroponic Crop Yields: A Meta-Analysis

Increase in phenolic compounds of Coriandrum sativum L. after the application of a Bacillus halotolerans biofertilizer

Isolation, heterologous expression, and purification of a novel antifungal protein from Bacillus subtilis strain Z-14

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