Rhizospheric changes of fungal and bacterial communities in relation to soil health of multi-generation apple orchards

Caputo, F.; Nicoletti, F.; Picione, F. De Luca; Manici, L.

doi:10.1016/j.biocontrol.2015.04.019

Cited by 40 publications

(18 citation statements)

References 54 publications

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“…Cylindrocarpon-like fungi) in apple plant growth reduction on ARD affected soils was presented (Manici et al, 2013. More recently, numerous studies on microbial community analyses of ARD soils were published, strongly fostered by new sequencing technologies (Rumberger et al, 2007;Tewoldemedhin et al, 2011;Yim et al, 2013Yim et al, , 2015Yim et al, , 2016Sun et al, 2014;Caputo et al, 2015;Franke-Whittle et al, 2015;Mazzola et al, 2015;Hewavitharana and Mazzola, 2016;Nicola et al, 2017). These total DNA based analyses confirmed previous data on changes in the microbial community composition in replant soils.…”

Section: Shifts In Bacterial and Fungal Communities In Soil As A Trigsupporting

confidence: 73%

Apple Replant Disease: Causes and Mitigation Strategies

Winkelmann¹,

Smalla²,

Amelung³

et al. 2019

Current Issues in Molecular Biology

104

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Section: Shifts In Bacterial and Fungal Communities In Soil As A Trigsupporting

confidence: 73%

Apple Replant Disease: Causes and Mitigation Strategies

Winkelmann¹,

Smalla²,

Amelung³

et al. 2019

Current Issues in Molecular Biology

104

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“…Factors that influence soil microbial activity exert control over the production of soil enzymes, which then integrate information on soil microbial status and soil physico‐chemical properties, making them a useful sensor for studying the effects of environmental changes in soil fertility . Their activity is well‐correlated with nutrient availability .…”

Section: Discussionmentioning

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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“…There are reports of both beneficial and harmful species of Pseudomonas 29 – 32 , however, the majority of previous studies have found that Pseudomonas spp. have the potential to control specialised pathogens and suppress soil-borne diseases 30 , 31 . The increase of these beneficial microbes in ATS soils may suggest that populations are more competitive than other species, allowing them to prevail in ATS soils.…”

Section: Discussionmentioning

confidence: 99%

Microbial community analysis of apple rhizosphere around Bohai Gulf

Jiang

Song

Yang

et al. 2017

Sci Rep

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Bohai Gulf is the main area for apple tree cultivation in China. Consecutive replanting significantly affects the yield and quality of apple trees in this area. Microecological imbalance in apple trees’ rhizospheres caused by variation in the soil microbial community is considered the primary cause of apple replant disease (ARD). This study analysed the microbial communities of the rhizospheres of perennial apple trees (PAT) and apple tree saplings under replanting (ATS) around Bohai Gulf using high-throughput sequencing. The results revealed increased populations of typical pathogenic fungi Verticillium and bacteria Xanthomonadaceae, and decreased populations of beneficial bacterial populations Pseudomonas and Bacillus with replanting, suggesting that competition between pathogens and beneficial microbes varies according to the ratio of pathogens to beneficial microbes in rhizosphere soil under the replanting system. Meanwhile, replanting was accompanied by an increase in the antagonistic bacteria Arthrobacter and fungus Chaetomium, suggesting that increased numbers of pathogens can lead to more instances of antagonism. Redundancy analysis (RDA) revealed site position and the main soil properties (pH, organic matter, available N, available K, available P, and moisture) affected the microbial community composition. It found clear differences in soil microbial communities and demonstrated a better understanding of the causes for ARD.

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Rhizospheric changes of fungal and bacterial communities in relation to soil health of multi-generation apple orchards

Cited by 40 publications

References 54 publications

Apple Replant Disease: Causes and Mitigation Strategies

Apple Replant Disease: Causes and Mitigation Strategies

The mitigation effects of exogenous melatonin on replant disease in apple

Microbial community analysis of apple rhizosphere around Bohai Gulf

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