Soil bacterial community in potato tuberosphere following repeated applications of a common scab suppressive antagonist

Hiltunen, Lea; Tarvainen, Oili; Kelloniemi, Jani; Tanskanen, Jaakko; Karhu, Jouni; Valkonen, Jari P. T.

doi:10.1016/j.apsoil.2021.104096

Cited by 13 publications

(9 citation statements)

References 76 publications

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“…The causative agents of PCS are the pathogenic Streptomyces spp. Interestingly, suppressiveness against PCS was also attributed to the genus Streptomyces, but to its non-pathogenic strains [87]. It should be noted that the mechanism of this inhibition of pathogenic Streptomyces is complex and, apparently, involves other bacterial species in addition to niche occupation by nonpathogenic Streptomyces bacteria.…”

Section: Impact Of Bacterial and Fungal Pathogens On Potato Microbiomementioning

confidence: 99%

“…Hiltunen et al compared the structure of the microbial community in the geocaulosphere (the authors called it the tuberosphere) in treatment and control cases. The authors showed that the treatment of tubers with the Streptomyces strain (Str272), when applied systematically, enhanced the microbial diversity, and the soil preserved the ability to suppress the diseases for several seasons [87]. The study was limited only to the bacterial community impact, but many other factors (e.g., chemical soil properties) could be important too.…”

Section: Figurementioning

confidence: 99%

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Potato Microbiome: Relationship with Environmental Factors and Approaches for Microbiome Modulation

Petrushin,

Filinova,

Gutnik

2024

IJMS

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Every land plant exists in a close relationship with microbial communities of several niches: rhizosphere, endosphere, phyllosphere, etc. The growth and yield of potato—a critical food crop worldwide—highly depend on the diversity and structure of the bacterial and fungal communities with which the potato plant coexists. The potato plant has a specific part, tubers, and the soil near the tubers as a sub-compartment is usually called the “geocaulosphere”, which is associated with the storage process and tare soil microbiome. Specific microbes can help the plant to adapt to particular environmental conditions and resist pathogens. There are a number of approaches to modulate the microbiome that provide organisms with desired features during inoculation. The mechanisms of plant–bacterial communication remain understudied, and for further engineering of microbiomes with particular features, the knowledge on the potato microbiome should be summarized. The most recent approaches to microbiome engineering include the construction of a synthetic microbial community or management of the plant microbiome using genome engineering. In this review, the various factors that determine the microbiome of potato and approaches that allow us to mitigate the negative impact of drought and pathogens are surveyed.

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Section: Impact Of Bacterial and Fungal Pathogens On Potato Microbiomementioning

confidence: 99%

Section: Figurementioning

confidence: 99%

Potato Microbiome: Relationship with Environmental Factors and Approaches for Microbiome Modulation

Petrushin,

Filinova,

Gutnik

2024

IJMS

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“…They not only suppress bacterial plant diseases but also promote plant growth. In a recent study, Hiltunen et al showed that Streptomyces Str272 affected the bacterial community of potato tuberospheres, and suppression of potato common scab lasted over 5 years in the field . Saputra et al.…”

Section: Application Of Streptomyces As Biocontrol Agentsmentioning

confidence: 99%

Streptomyces Strains and Their Metabolites for Biocontrol of Phytopathogens in Agriculture

Wang,

Li,

et al. 2024

J. Agric. Food Chem.

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Sustainable agriculture is increasingly linked to biological pesticides as alternatives to agro-chemicals. Streptomyces species suppress plant diseases through their unique traits and numerous metabolites. Although many Streptomyces strains have been developed into commercial products, their roles in the biocontrol of phytopathogens and mechanisms of functional metabolite synthesis remain poorly understood. In this review, biocontrol of plant diseases by Streptomyces is summarized on the basis of classification of fungal and bacterial diseases and secondary metabolites produced by Streptomyces that act on phytopathogenic microorganisms are discussed. The associated non-ribosomal peptide synthetases and polyketide synthetases responsible for biosynthesis of these secondary metabolites are also investigated, and advances in fermentation of Streptomyces are described. Finally, the need to develop precise and effective biocontrol methods for plant diseases is highlighted.

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“…Long-time rotation cropping improved microbial community composition and enhanced soil health which eventually contributed to improved plant growth. Thus, maintaining the potato production system is closely associated with improving diverse and functional soil microbial communities (Hiltunen et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

Crop rotations increased soil ecosystem multifunctionality by improving keystone taxa and soil properties in potatoes

Zhang²,

Zhang³

et al. 2023

Front. Microbiol.

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Continuous cropping of the same crop leads to soil degradation and a decline in crop production, and these impacts could be mitigated through rotation cropping. Although crop rotation enhances soil fertility, microbial community diversity, and potato yield, its effects on the soil ecosystem multifunctionality (EMF) remain unclear. In the present research, we comparatively examined the effects of potato continuous cropping (PP) and rotation cropping [potato–oat rotation (PO) and potato–forage maize rotation (PFM)] on the soil EMF as well as the roles of keystone taxa, microbes abundance, and chemical properties in EMF improvement. It was demonstrated that soil EMF is increased in rotation cropping (PO and PFM) than PP. Soil pH was higher in rotation cropping (PO and PFM) than in PP, while total phosphorus (TP) and available phosphorus (AP) were significantly decreased than that in PP. Rotation cropping (PO and PFM) markedly changed the bacterial and fungal community compositions, and improved the potential plant-beneficial fungi, e.g., Schizothecium and Chaetomium, while reducing the abundances of the potentially phytopathogenic fungi, e.g., Alternaria, Fusarium, Verticillium dahiae, Gibberella, Plectosphaerella, Colletotrichum, Phoma, and Lectera in comparison with PP. Also, co-occurrence patterns for bacteria and fungi were impacted by crop rotation, and keystone taxa, e.g., Nitrospira.1, Lysinibacillus, Microlunatus.1, Sphingomonas.3, Bryobacter.1, Micromonospora, and Schizothecium, were enriched in PO and PFM than PP. The structural equation model (SEM) further demonstrated that cropping systems increased soil ecosystem multifunctionality through regulating SOM and keystone taxa (Schizothecium1), and keystone taxa were mediated by soil pH. This study suggested that rotation cropping might contribute to the improvement of soil ecosystem multifunctionality as well as the development of disease-suppressive soils in comparison with potato continuous cropping.

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Soil bacterial community in potato tuberosphere following repeated applications of a common scab suppressive antagonist

Cited by 13 publications

References 76 publications

Potato Microbiome: Relationship with Environmental Factors and Approaches for Microbiome Modulation

Potato Microbiome: Relationship with Environmental Factors and Approaches for Microbiome Modulation

Streptomyces Strains and Their Metabolites for Biocontrol of Phytopathogens in Agriculture

Crop rotations increased soil ecosystem multifunctionality by improving keystone taxa and soil properties in potatoes

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