Relation between Soil Health, Wave-like Fluctuations in Microbial Populations, and Soil-borne Plant Disease Management

Bruggen, A.H.C. van; Semenov, A. M.; Diepeningen, A.D. van; Vos, O.J. de; Blok, W.J.

doi:10.1007/s10658-005-1250-8

Cited by 87 publications

(22 citation statements)

References 81 publications

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“…1), have been observed in soil yeast populations within the field. Fluctuations in soil bacterial populations have been observed many times and appear irregular under natural conditions (Van Bruggen et al 2006). These oscillations usually do not correlate with variations in external environmental characteristics, such as temperature and moisture content of soil.…”

Section: Discussionmentioning

confidence: 99%

Effects of small increases in copper levels on culturable basidiomycetous yeasts in low-nutrient soils

Vreulink

Stone

Botha

2010

Journal of Applied Microbiology

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Aims: Investigating the effect of perturbations, with relatively low Cu concentrations, on yeast community composition in low‐nutrient virgin soil. Methods and Results: Culturable soil yeast populations were monitored at an experimental site treated with the fungicide copper oxychloride (10 mg Cu per kg soil). Yeast numbers were unaffected by additional Cu; however, a shift in yeast community composition from Hymenomycetes to Urediniomycetes species occurred. Subsequent growth experiments conducted with a synthetic liquid medium revealed that hymenomycetous and urediniomycetous yeasts were affected differently by 1 and 10 mg l−1 Cu. Soil microcosm experiments then indicated that additional 10 mg kg−1 Cu may improve the competitive ability of urediniomycetous yeasts in the presence of hymenomycetous yeasts. Conclusions: The shift from hymenomycetous to urediniomycetous yeasts, as a result of slightly increased soil Cu levels, may be because of hymenomycetous yeasts being more sensitive to elevated Cu levels and urediniomycetous yeasts having an improved competitive ability in the presence of elevated Cu levels. Significance and Impact of the Study: Yeast community composition of pristine low‐nutrient soils may change as a result of perturbations with relatively low concentrations of Cu. Urediniomycetous yeasts should be studied as potential bio‐indicators of Cu perturbations.

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Section: Discussionmentioning

confidence: 99%

Effects of small increases in copper levels on culturable basidiomycetous yeasts in low-nutrient soils

Vreulink

Stone

Botha

2010

Journal of Applied Microbiology

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“…Other studies have also shown that applying conservation management practices increased microbial diversity as a result of increased organic C from retaining residues (Entry et al 2004). Similarly, regular addition of soil organic matter may increase background levels of microbial activity, increase nutrient cycling, decrease the concentrations of easily available nutrient sources and increase microbial diversity (van Bruggen et al 2006). Usability of soil carbohydrates is a useful indicator of changes in soil organic matter status (Hu et al 1995), and it has been reported that carbohydrates may represent up to 75% of the total organic C of the soils in some environments and are a key component of the C cycle (Mager 2010).…”

Section: Effect On Soil Microbiologymentioning

confidence: 97%

“…The outcome is consistent with Myers et al (2001), who stated that differences in microbial functional diversity could be attributed to variations in plant litter quality and substrate inputs to the soil in forest ecosystems. The abundant resources and fast nutrient turnover in residue retention treatments might contribute to the changes in microbial functional diversity (van Bruggen et al 2006), and suggest that the microbial decomposition pathway is relatively more important in the presence than in the absence of residue. In this study, the levels of carbohydrate and polymer utilization (PC1 values), including D-Mannitol, Nacetyl-D-glucosamine and Tween 80, were higher with residue retention.…”

Section: Effect On Soil Microbiologymentioning

confidence: 99%

Functional diversity of soil microbial communities in response to tillage and crop residue retention in an eroded Loess soil

Yang

Wang

Shen

et al. 2013

Soil Science and Plant Nutrition

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This study reports the effects of a long-term tillage and crop residue experiment on the soil microbial ecology of a Loess soil located in Gansu Province, western China. Tillage and residue management treatments were imposed on a nine-year continuous rotation of maize (Zea mays L. cv Zhongdan No. 2), winter wheat (Triticum aestivum L. cv Xifeng No. 24) and soybean (Glycine max L. cv Fengshou No. 12). After nine years, there were significant effects on topsoil (0-10 cm) carbon, nitrogen, microbial activity, microbial composition and function. The retention of crop residues compared to residue removal significantly improved all measures of chemical and biological soil fertility. The values of average well color development (AWCD), a measure of the metabolic utilization of organic compounds, for the residue retention treatments were always higher than those with residue removal treatments, and the differences increased with increasing incubation time. Principal component analysis indicated that crop residue retention significantly altered topsoil microbial activity and community functional diversity. Our research clearly demonstrates that retention of crop residues significantly enhances soil microbial metabolic capacity, compared to no tillage, and can therefore contribute to sustainable agriculture on the Loess Plateau. Promotion of conservation agriculture has the potential to rehabilitate soil fertility and improve agricultural sustainability and food security on the region.

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“…Deshpande and Murumkar ( 2008 ) found a reduction in microbial growth and abundance, and at the same time an increase of the pathogen M. phaseolina , which resulted in an increase of root rot in sorghum. High microbial diversity agricultural soils have been associated with suppression of soil-borne plant diseases, and this kind of suppression may be due to general competition or antagonism, which may be non-specifi c and active against a wide range of soil-borne pathogens (van Bruggen et al 2006 ). Patil and Kamble ( 2011 ) examined the effect of UV light on the hostile/antagonistic action of Trichoderma koningii against M. phaseolina , using fi ve T. koningii mutants, and found that T. koningii 2 showed maximum antagonistic activity against the charcoal rot pathogen when tested by dual culture method.…”

Section: Managementmentioning

confidence: 99%

Macrophomina phaseolina: The Most Destructive Soybean Fungal Pathogen of Global Concern

Vibha

2016

Fungal Biology

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VibhaCharcoal rot caused by the fungus, Macrophomina phaseolina, have emerged as serious concern for cultivation of soybean under climate change scenario worldwide. Macrophomina phaseolina causes huge annual losses to the crop and can survives in the soil mainly as microsclerotia for 2 years or longer and; germinate repeatedly during the crop-growing season. The pathogen generally attacks the young plants when their growth is retarded due to unfavourable conditions. Moreover, charcoal rot is usually most severe in older plants which have been subjected to stressful environmental conditions such as high temperature, drought, or poor fertility. The disease severity is directly related to the humidity, temperature, tillage practices and soil nutrient conditions. This review deals with the details of pathogen and its management approaches. The management of disease through stress management is the most viable solution to overcome the menace of it. Although, the fungicide is the means of disease prevention but cultural practices, irrigation management during drought and resistant cultivars are the most practical means of control as the pathogen have more than 500 plant species to inhabit. The possibilities in substantial yield reduction under present changing climate underscore the need for further research.

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Relation between Soil Health, Wave-like Fluctuations in Microbial Populations, and Soil-borne Plant Disease Management

Cited by 87 publications

References 81 publications

Effects of small increases in copper levels on culturable basidiomycetous yeasts in low-nutrient soils

Effects of small increases in copper levels on culturable basidiomycetous yeasts in low-nutrient soils

Functional diversity of soil microbial communities in response to tillage and crop residue retention in an eroded Loess soil

Macrophomina phaseolina: The Most Destructive Soybean Fungal Pathogen of Global Concern

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