Purple corn‐associated rhizobacteria with potential for plant growth promotion

Castellano‐Hinojosa, Antonio; Perez-Tapia, Vicente; Bedmar, Eulogio J.; Santillana, Nery

doi:10.1111/jam.13708

Cited by 18 publications

(8 citation statements)

References 73 publications

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“…Protection mechanisms comprised increased levels of hydrolytic enzymes such as chitinase and β-1,3-glucanase, increased expression of pathogenesis-related proteins and production of antifungal compounds 71,72,74 . While effective plant growth promoters have been identified within the genus Achromobacter [42][43][44] , fewer reports exists on successful biocontrol using this genus 45,46 . In OSR, Achromobacter has been found to promote plant growth by improving nutrient uptake 47 .…”

Section: Discussionmentioning

confidence: 99%

Bacterial and fungal endophyte communities in healthy and diseased oilseed rape and their potential for biocontrol of Sclerotinia and Phoma disease

Schmidt

Mrnka

Lovecká

et al. 2021

Sci Rep

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Phoma stem canker (caused by the ascomycetes Leptosphaeria maculans and Leptosphaeria biglobosa) is an important disease of oilseed rape. Its effect on endophyte communities in roots and shoots and the potential of endophytes to promote growth and control diseases of oilseed rape (OSR) was investigated. Phoma stem canker had a large effect especially on fungal but also on bacterial endophyte communities. Dominant bacterial genera were Pseudomonas, followed by Enterobacter, Serratia, Stenotrophomonas, Bacillus and Staphylococcus. Achromobacter, Pectobacter and Sphingobacterium were isolated only from diseased plants, though in very small numbers. The fungal genera Cladosporium, Botrytis and Torula were dominant in healthy plants whereas Alternaria, Fusarium and Basidiomycetes (Vishniacozyma, Holtermaniella, Bjerkandera/Thanatephorus) occurred exclusively in diseased plants. Remarkably, Leptosphaeria biglobosa could be isolated in large numbers from shoots of both healthy and diseased plants. Plant growth promoting properties (antioxidative activity, P-solubilisation, production of phytohormones and siderophores) were widespread in OSR endophytes. Although none of the tested bacterial endophytes (Achromobacter, Enterobacter, Pseudomonas, Serratia and Stenotrophomonas) promoted growth of oilseed rape under P-limiting conditions or controlled Phoma disease on oilseed rape cotyledons, they significantly reduced incidence of Sclerotinia disease. In the field, a combined inoculum consisting of Achromobacter piechaudii, two pseudomonads and Stenotrophomonas rhizophila tendencially increased OSR yield and reduced Phoma stem canker.

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Section: Discussionmentioning

confidence: 99%

Bacterial and fungal endophyte communities in healthy and diseased oilseed rape and their potential for biocontrol of Sclerotinia and Phoma disease

Schmidt

Mrnka

Lovecká

et al. 2021

Sci Rep

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“…In the present study, we investigated microbial composition of two rhizosphere soil types by analyzing bacterial 16s rRNA and fungal ITS sequences. To find the inhibitory effect of rhizobacteria, the maize rhizosphere bacteria were separated by dilution coating plate method ( Castellano-Hinojosa et al, 2018 ), and B. siamensis was isolated from the rhizosphere soil of the maize affected with severe stalk rot in the field.…”

Section: Introductionmentioning

confidence: 99%

Maize stalk rot caused by Fusarium graminearum alters soil microbial composition and is directly inhibited by Bacillus siamensis isolated from rhizosphere soil

Zhang

Wang

et al. 2022

Front. Microbiol.

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Maize stalk rot caused by Fusarium graminearum can reduce the yield of maize and efficiency of mechanized harvesting. Besides, deoxynivalenol and zearalenone toxins produced by F. graminearum can also affect domestic animals and human health. As chemical fungicides are expensive and exert negative effects on the environment, the use of biological control agents has become attractive in recent years. In the present study, we collected rhizosphere soil with severe stalk rot disease (ZDD), the rhizosphere soil with disease-free near by the ZDD (ZDH), and measured rhizosphere microbial diversity and microbial taxonomic composition by amplicon sequencing targeting either bacteria or fungi. The results showed that Fusarium stalk rot caused by the Fusarium species among which F. graminearum is frequent and can reduce the abundance and alpha diversity of rhizosphere microbial community, and shift the beta diversity of microorganisms. Furthermore, a bacterial strain, Bacillus siamensis GL-02, isolated from ZDD, was found to significantly affect growth of F. graminearum. In vitro and in vivo assays demonstrated that B. siamensis GL-02 had good capability to inhibit F. graminearum. These results revealed that B. siamensis GL-02 could be a potential biocontrol agent for the control of maize stalk rot.

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“…Therefore, the contribution of organic fertilizers, based on manure, to the corn crop result in increases in plant height [ 69 ]. The bioinoculants are those responsible for increasing the availability of nutrients, as N, P, Fe and Zn do for plants and/or provide new nutrients to the soil-plant system, as well as promote the growth and production of the corn crop [ 70 , 71 ]. In this regard, soil management is important to promote the retention of organic matter and adequate conservation of soil moisture [ 72 ].…”

Section: Resultsmentioning

confidence: 99%

Growth and Yield of Purple Kculli Corn Plants under Different Fertilization Schemes

Romero-Cortés

Tamayo-Rivera

Morales-Ovando

et al. 2022

JoF

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Globally, corn is the most economically important crop, surpassing other cereals of economic importance. However, the tillage methods, monoculture and the abuse of synthetic agrochemicals used in Mexico have led to the loss of fertility and soil yield. In this sense, the application of alternative fertilization methods based on chemical fertilizer, organic matter and biofertilizer, applied alone or in combination, can stimulate the defense systems of corn plants and increase their yield. Therefore, in this research, some fertilization schemes were tested on purple corn plants of the Kculli race through the evaluation of some growth and yield variables, as well as the subsequent evaluation of the chemical characteristics of the corn grain produced in each fertilization scheme. The results indicate highly significant differences (p ≤ 0.05) between treatments, for the different growth and yield variables studied. Of all the fertilization schemes evaluated, treatment T7 obtained the best grain yield of 6.19 ± 0.07 t ha−1, with respect to treatment T1 of 1.02 ± 0.01 t ha−1, as well as the highest protein content and starch quality. Being clear the positive effect of the adequate contribution of the macro and micronutrients used exerts on the corn crop in each of the fertilization schemes studied. On the other hand, the analysis carried out on the grains was found within the values reported by other authors.

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Purple corn‐associated rhizobacteria with potential for plant growth promotion

Abstract: This study enlarges our knowledge on plant-microbial interactions in high altitude mountains and provides new applications for PGPR inoculation in purple amylaceum corn, which is part of the staple diet for the native Quechua communities.

Cited by 18 publications

References 73 publications

Bacterial and fungal endophyte communities in healthy and diseased oilseed rape and their potential for biocontrol of Sclerotinia and Phoma disease

Bacterial and fungal endophyte communities in healthy and diseased oilseed rape and their potential for biocontrol of Sclerotinia and Phoma disease

Maize stalk rot caused by Fusarium graminearum alters soil microbial composition and is directly inhibited by Bacillus siamensis isolated from rhizosphere soil

Growth and Yield of Purple Kculli Corn Plants under Different Fertilization Schemes

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