Streptomyces competition and co-evolution in relation to plant disease suppression

Kinkel, Linda L.; Schlatter, Daniel; Bakker, Matthew G.; Arenz, B.

doi:10.1016/j.resmic.2012.07.005

Cited by 168 publications

(105 citation statements)

References 73 publications

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“…The suppressive effects of these green manure crops on potato black scurf and/or common scab have been demonstrated in various studies reporting the control of potato diseases with pearl millet [70], japanese millet [68], and mustard [15,17]. As shown in the present study, these green manures also increased soil microbial activity (Table 6) which may result in increased competition for existing nutrients [18,71] or increased populations of antagonistic organisms against S. scabies [71,72] or R. solani [15]. The suppressive effects of mustard and other Brassica spp.…”

Section: Incidence Of Common Scab and Black Scurfsupporting

confidence: 77%

The Benefits of Crop Rotation Including Cereals and Green Manures on Potato Yield and Nitrogen Nutrition and Soil Properties

N’Dayegamiye¹,

Nyiraneza²,

Grenier³

et al. 2017

Adv Crop Sci Tech

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Soil quality decline is a common concern in potato production systems. Including cereals and green manures (GMs) in potato rotation could improve soil productivity and sustain potato (Solanum tuberosum L.) yields and quality. This experiment initiated in Québec, eastern Canada, assessed the effects of two cycles of 2-yr potato rotations with cereals and GMs on soil properties and potato yield and quality, and on disease incidence -1 ) were applied to potato. After two rotation cycles in 2011, soils under cereals and summer and fall GMs had higher soil water-extractable organic C and N contents, nitrate levels, soil respiration, urease and dehydrogenase activities, and a larger proportion of soil macro aggregates (0.25 to 2 mm), compared with the continuous potato. Cereals and summer GMs increased marketable potato yield and specific gravity, whereas fall GMs increased tuber yield but reduced tuber quality. In addition, fall GMs favored the incidence of common scab and black scurf. Summer GMs had higher potato N uptake and N efficiency compared to cereals and fall GMs. Although fall GMs produced higher net returns than cereals and summer GMs, they may not represent a viable long term option to sustain potato production and to enhance soil quality. Results indicated that growing cereals or summer GMs in rotation with potato is an interesting alternative to improve soil properties while sustaining potato yield and quality. A fall GM with a better growth during the fall season may sustain potato yield and quality, if included in longer potato rotation, but this remains to be determined.

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Section: Incidence Of Common Scab and Black Scurfsupporting

confidence: 77%

The Benefits of Crop Rotation Including Cereals and Green Manures on Potato Yield and Nitrogen Nutrition and Soil Properties

N’Dayegamiye¹,

Nyiraneza²,

Grenier³

et al. 2017

Adv Crop Sci Tech

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“…Recent work suggests the potential for soil edaphic characteristics, nutrient availability or nutrient diversity in soil, physical environmental stress and phylogeny to predict microbial inhibitory activities and coevolutionary interactions in soil populations (Schlatter et al, 2009;Bakker et al, 2010;Kinkel et al, 2011;Bailey and Kassen, 2012;Otto-Hanson et al, 2013). More detailed understanding of the precise roles of these factors in mediating microbial species interactions and coevolution in soil will contribute significantly to the search for novel antibiotic biochemistries, to enhanced insight into the maintenance of antibiotic resistance genes in environmental microbes and to management of disease suppressive activity of indigenous soil microbes (Martinez et al, 2011;Kinkel et al, 2011;Kinkel et al, 2012 …”

Section: Resistance Interactions Among Sympatric and Allopatric Isolamentioning

confidence: 99%

“…Streptomycetes are Gram positive, filamentous bacteria that are excellent saprophytes, prolific producers of extracellular enzymes and ubiquitous in soil and marine sediments (Gontang et al, 2007;Chater et al, 2010). Streptomycetes are the source of many clinically significant antibiotics and have been investigated in agricultural settings for their capacities to suppress plant pathogens (Bressan and Figueiredo, 2007;Hiltunen et al, 2009;Karimi et al, 2012;Kinkel et al, 2012;Meschke et al, 2012;Otto-Hanson et al, 2013). Because of their capabilities at producing bioactive compounds and in response to the tremendous therapeutic value of many of these compounds, antibiotic production in Streptomycetes has been studied extensively in vitro.…”

Section: Introductionmentioning

confidence: 99%

Sympatric inhibition and niche differentiation suggest alternative coevolutionary trajectories among Streptomycetes

et al. 2013

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Soil bacteria produce a diverse array of antibiotics, yet our understanding of the specific roles of antibiotics in the ecological and evolutionary dynamics of microbial interactions in natural habitats remains limited. Here, we show a significant role for antibiotics in mediating antagonistic interactions and nutrient competition among locally coexisting Streptomycete populations from soil. We found that antibiotic inhibition is significantly more intense among sympatric than allopatric Streptomycete populations, indicating local selection for inhibitory phenotypes. For sympatric but not allopatric populations, antibiotic inhibition is significantly positively correlated with niche overlap, indicating that inhibition is targeted toward bacteria that pose the greatest competitive threat. Our results support the hypothesis that antibiotics serve as weapons in mediating local microbial interactions in soil and suggest that coevolutionary niche displacement may reduce the likelihood of an antibiotic arms race. Further insight into the diverse roles of antibiotics in microbial ecology and evolution has significant implications for understanding the persistence of antibiotic inhibitory and resistance phenotypes in environmental microbes, optimizing antibiotic drug discovery and developing strategies for managing microbial coevolutionary dynamics to enhance inhibitory phenotypes.

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“…Further studies elucidated possible mechanisms of disease suppression that include competition for space and nutrients, antagonism due to production of secondary metabolites and elicitation of induced systemic resistance (ISR) (Philippot et al, 2013;Pieterse et al, 2014). Specific role of the endophytic bacteria in development of the disease suppressive traits was rarely addressed in the studies on disease suppressive soil communities; however, bacteria of genus Streptomyces, Bacillus, Actinomyces, Pseudomonas that lead endophytic lifestyle were shown to contribute to the disease suppressive traits of soils (Siddiqui, EhteshamulHaque, 2001;Weller et al, 2002;Haas, Defago, 2005;Mendes et al, 2011;Kinkel et al, 2012).…”

Section: Effect Of Agricultural Practices On Endophytic Bacterial Commentioning

confidence: 99%

Bacterial endophytes in agricultural crops and their role in stress tolerance: a review

Miliūtė

Buzaitė

Baniulis

et al. 2015

Zemdirbyste-Agriculture

197

112

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Bacterial endophytes are a class of endosymbiotic microorganisms widespread among plants that colonize intercellular and intracellular spaces of all plant compartments and do not cause plant disease or significant morphological changes. Plant and endophytic bacteria association includes vast diversity of bacterial taxa and plant hosts and in this review we present an overview of taxonomic composition of endophytes identified in common agricultural crops. Further, during the last decade, new aspects of the microbial diversity have emerged with application of new metagenomic analysis methods in studies of bacterial endophytes. Endophytic bacteria community structure is influenced by plant genotype, abiotic and biotic factors such as environment conditions, microbe -microbe interactions and plant -microbe interactions. Agricultural practices, such as soil tillage, irrigation, use of pesticides and fertilizers have a major effect on function and structure of soil and endophytic microbial populations. Therefore, the use of agricultural practices that maintain natural diversity of plant endophytic bacteria is becoming an important element of sustainable agriculture that could ensure plant productivity and quality of agricultural production. The diverse endophytic microbial communities play integral and unique role in the functioning of agroecosystems. Endophytic bacteria have been shown to have several beneficial effects on their host plant, including growth promoting activity, modulation of plant metabolism and phytohormone signalling that leads to adaptation to environmental abiotic or biotic stress. Use of endophytic bacteria presents a special interest for development of agricultural applications that ensure improved crop performance under cold, draught or contaminated soil stress conditions or enhanced disease resistance.

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Streptomyces competition and co-evolution in relation to plant disease suppression

Cited by 168 publications

References 73 publications

The Benefits of Crop Rotation Including Cereals and Green Manures on Potato Yield and Nitrogen Nutrition and Soil Properties

The Benefits of Crop Rotation Including Cereals and Green Manures on Potato Yield and Nitrogen Nutrition and Soil Properties

Sympatric inhibition and niche differentiation suggest alternative coevolutionary trajectories among Streptomycetes

Bacterial endophytes in agricultural crops and their role in stress tolerance: a review

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