Relationships of decomposability and C/N ratio in different types of organic matter with suppression of Fusarium oxysporum and microbial communities during reductive soil disinfestation

Liu, Liang Liang; Kong, Jijie; Cui, Huiling; Zhang, Jinbo; Wang, Fenghe; Cai, Zucong; Huang, Xinqi

doi:10.1016/j.biocontrol.2016.06.011

Cited by 84 publications

(50 citation statements)

References 60 publications

(55 reference statements)

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“…It is reasonable to conclude that larger increases in microbial diversity could prevent pathogen reinfestation, which can explain the smaller increase in relative abundance of Fusarium in the plant residue‐amended RSD soils. Furthermore, the plant root exudates were the only active source of carbon supply in the ethanol‐amended RSD and dazomet‐fumigated soils during plant growth, whereas the plant residues were not completely decomposed during the anaerobic treatment (still visible after the treatment) (Liu et al, ). This was further supported by the larger CO 2 emissions in bagasse‐amended soils than in unamended soils (Zhao, Zhang, Müller, & Cai, ) even at 100 days after application, which would supply active carbon together with root exudates for soil microbes in the RSD‐BA and RSD‐BD soils.…”

Section: Discussionmentioning

confidence: 99%

How green alternatives to chemical pesticides are environmentally friendly and more efficient

Huang

Zhao

Zhou

et al. 2019

European J Soil Science

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Various soil management strategies that use disinfestation are important in the control of soil‐borne diseases before planting. However, only a few studies pay attention to preventing pathogen reinfestation during host plant cultivation, which is also important for the stable control of soil‐borne diseases. Here we used various pre‐planting management strategies to disinfest a field severely infested with Fusarium oxysporum, and then investigated changes in the potential pathogen and microbial communities during the 11 months of host plant cultivation. The soil microbial numbers, diversity, community structure and composition varied considerably across the soils treated by dazomet fumigation and reductive soil disinfestations (RSDs) using ethanol, bagasse and bean dregs. The Fusarium inoculum decreased to the same degree in the disinfested soils with the various methods. After the cultivation of lisianthus (Eustoma russellianum (Hook.) G. Don), microbial numbers, diversity and community structure tended to be similar and Fusarium increased markedly in these soils. Furthermore, the increase in relative abundance of Fusarium, especially in the RSD‐treated soils amended with bagasse, was significantly less than in the soils amended with non‐plant residues. Further analyses showed that the increases in microbial diversity and relative abundance of Zopfiella and Mycothermus were significantly and negatively correlated with the increase in Fusarium relative abundance. The additional sources of carbon supplied in the disinfested soil positively affected the development of the soil microbiota and prevented Fusarium reinfestation resulting from host plant cultivation, which should be considered for achieving stable disease suppression in the future. Highlights We studied Fusarium reinfestation resulting from host plant cultivation in various soil environments. Plant cultivation led to uniformity in the development of different soil microbiota. Fusarium reinfestation depended strongly on soil environment. Increased microbial diversity and specific microbial groups prevented Fusarium reinfestation.

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Section: Discussionmentioning

confidence: 99%

How green alternatives to chemical pesticides are environmentally friendly and more efficient

Huang

Zhao

Zhou

et al. 2019

European J Soil Science

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“…In a healthy soil, the most abundant microorganisms are bacteria involved in the nitrogen cycle. For example, Opitutus sp reduces nitrate to nitrite and is more common in soils that have undergone reductive disinfestation, an environmentally friendly and broad‐spectrum method for eradicating soil pathogens and favoring positive microorganisms . Trees and herbaceous plants tend to differ in the ways they affect the composition and growth of microbial communities in their respective rhizospheres .…”

Section: Introductionmentioning

confidence: 99%

The mitigation effects of exogenous melatonin on replant disease in apple

Zhao

Gao

et al. 2018

Journal of Pineal Research

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Melatonin mediates many physiological processes in plants. The problem of apple replant disease is unsolved. Our study objectives were to evaluate the regulatory effect of melatonin on plant resistance to this challenge and investigate the preliminary mechanism by which melatonin helps alleviate the effects of this disease. Two-year-old trees of "Fuji" apple (Malus domestica), grafted onto rootstock M.26, were grown in "replant" soil for 6 months in the absence or presence of a 200 μmol/L melatonin supplement. The addition of melatonin to the soil significantly increased the rates of plant growth and net photosynthesis and chlorophyll concentrations under replant conditions. This molecule elevated the levels of K in leaves and roots and enhanced the activity of soil enzymes. Such supplementation also changed the composition of the bacterial and fungal communities in the soil. We concluded that the application of melatonin to a replant soil can protect their chloroplasts from oxidative damage and release the apple root from membrane damage, and also lead to increased soil enzyme activity and soil quality while altering the composition of bacterial and fungal communities. These changes can then promote seedling growth, stimulate photosynthesis, and elevate K levels, thereby alleviating the effects of apple replant disease.

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“…The rate and direction of organic matter transformation are also determined by the C/N ratio [17,[24][25][26]. In the presence of past-harvest residues of leguminous plants, the C/N ratio is reduced compared to its value in the presence of cereal residues [16]. A high C/N ratio leads to the bio-sorption of nitrogen, hence reducing its availability for plants.…”

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…Plant residues and tillage system also affect the content of organic carbon in soil and the C/N ratio [16]. They determine the biological activity of a soil as well as the direction and rate of organic matter transformations ongoing in it [16,17]. In the study conducted by Woźniak and Kawecka-Radomska [8], the soil from a plot after pea cultivation contained significantly more available forms of phosphorus, potassium, and magnesium compared to the soil from a plot after cereals cultivation.…”

Section: Introductionmentioning

confidence: 99%

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Chemical Properties and Enzyme Activity of Soil as Affected by Tillage System and Previous Crop

Woźniak

2019

Agriculture

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The objective of this study was to evaluate the effect of tillage system and previously cultivated crop on the chemical properties and enzyme activity of soil. The first-order experimental factor was the tillage system, i.e., (1) conventional tillage (CT) and (2) reduced tillage (RT), whereas the second-order experimental factor was the previously cultivated crop, i.e., a) pea and b) durum wheat. Samples of soil were analyzed for the contents of organic C, total N, available forms of P, K, and Mg, as well as soil pH, total sorption capacity, and activity of soil enzymes (dehydrogenases, phosphatases, ureases, and proteases). The study demonstrated that the contents of organic C, total N, and available forms of K and Mg as well as soil pH were higher in soil subjected to RT than in that subjected to CT. In plots after pea cultivation, higher values were determined for the contents of total N and Mg, whereas in plots after durum wheat cultivation, the contents of organic C, P, and K and the soil pH were higher. Higher activities of dehydrogenases and phosphatases in soil were noted in soils subjected to the CT system than in those subjected to the RT system, whereas the activities of ureases and proteases were higher in soils subjected to RT. In addition, higher activities of dehydrogenases, phosphatases, and proteases were determined in the soil after pea cultivation than after durum wheat cultivation, whereas a higher activity of ureases was found in the soil after durum wheat cultivation. The C/N ratio was more beneficial after CT than after RT, as well as in the soil from plots after pea cultivation than after durum wheat cultivation.

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Relationships of decomposability and C/N ratio in different types of organic matter with suppression of Fusarium oxysporum and microbial communities during reductive soil disinfestation

Cited by 84 publications

References 60 publications

How green alternatives to chemical pesticides are environmentally friendly and more efficient

How green alternatives to chemical pesticides are environmentally friendly and more efficient

The mitigation effects of exogenous melatonin on replant disease in apple

Chemical Properties and Enzyme Activity of Soil as Affected by Tillage System and Previous Crop

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