Effects of long-term continuous cropping on soil nematode community and soil condition associated with replant problem in strawberry habitat

Li, Xingyue; Lewis, Edwin E.; Liu, Qizhi; Li, Heqin; Bai, Cheng; Wang, Yuzhu

doi:10.1038/srep30466

Cited by 68 publications

(43 citation statements)

References 61 publications

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“…Our previous study found that the CC obstacles in strawberry are attributable to an imbalance in plant nutrient availability and an accumulation of autotoxic substances, soil-borne pathogens and plant-parasitic nematodes, as well as other phenomena causing declines in soil health [2][3][4][5]. This study suggests that SA treatment might alleviate these problems and allow the CC soil ecology to recover, resulting in reduced stress on the plants.…”

Section: Discussionmentioning

confidence: 94%

“…Cultivated strawberry is a typical annual plant and is grown mainly under greenhouse conditions. However, the strawberry is terribly threatened by the continuous cropping (CC) problem [2][3][4][5][6]. Substantial agricultural losses due to CC obstacles are observed every year, and sustainable strawberry cultivation has been impeded worldwide [3].…”

Section: Introductionmentioning

confidence: 99%

“…Under CC conditions, replanting obstacles are caused by complex factors and lead to weak root systems, low productivity, and short economic lifespan [2][3][4][5]7]. For continuously cropped soil, long-term monoculture significantly disturbs soil environment, such as reductions in land fertility, accumulations of autotoxic substances and build-up of specific microbial communities and nematode communities [2][3][4][5]. At present, soil disinfection is a common measure to control strawberry CC obstacles [8,9].…”

Section: Introductionmentioning

confidence: 99%

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Transcriptomic analysis reveals recovery strategies in strawberry roots after using a soil amendment in continuous cropping soil

et al. 2020

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Background: In strawberry cultivation, continuous cropping (CC) obstacles seriously threaten production. A patented soil amendment (SA) can effectively relieve the CC obstacles to strawberry cultivation, but knowledge of the recovery mechanisms underlying this phenomenon is limited.Results: In this study, transcriptomic profiling of strawberry roots in soil with and without the SA was conducted using RNA-Seq technology to reveal gene expression changes in response to SA treatment. In total, 188 differentially expressed genes (DEGs), including 144 upregulated and 44 downregulated DEGs, were identified. SA treatment resulted in genotype-dependent responses, and the response pattern, including an overall increase in the expression of nutrient transport genes and a decrease in the expression of defense response genes, may be a possible mechanism underlying recovery strategies in strawberry roots after the application of the SA to CC soil. We also found that 9 Hsp genes involved in plant defense pathways were all downregulated in the SA-treated roots. Conclusions: This research indicated that strawberry plants reallocated defense resources to development when SA treatment alleviated the stress caused by a CC soil environment. The present study provides an opportunity to reveal the fundamental mechanisms of the tradeoff between growth and defense in strawberry.

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Section: Discussionmentioning

confidence: 94%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Transcriptomic analysis reveals recovery strategies in strawberry roots after using a soil amendment in continuous cropping soil

et al. 2020

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“…Shannon index and Simpson index of soil nematode community in the 10-year greenhouse were markedly lower than that in the 2-year greenhouse on 5 and 4 sampling times, respectively, suggesting that diversity of soil nematode community decreased with increasing planting years. Similarly, Li et al report that Shannon index of nematode fauna decrease along with increasing in strawberry continuous-cropping duration [40]. For α-diversity, the composition of soil nematode community in the two types of greenhouses significantly differed on late stage of growing season, mainly attributed to plant parasitic nematode increasing.…”

Section: Discussionmentioning

confidence: 96%

Dynamics of Soil Nematode Communities Revealed Significant Variation in Greenhouse with Different Continuous Cropping Years

Tian

Zhao

Mao

et al. 2019

Preprint

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22 Continuous cropping usually resulted in a series of soil problems, especially root knot nematode 23 disaster in greenhouse because of imbalance in soil nematode community. However, the dynamic 24 change in soil nematode community in greenhouse with various continuous cropping years during 25 plant growing season is unclear. Here, soil nematode communities in greenhouse after 2 and 10 26 years of continuous cropping were comparatively analyzed using 18S rDNA high-throughput 27 sequencing to reveal the changing processes in soil nematode communities. Compared to the 28 2-year greenhouse, soil in the 10-year greenhouse showed soil acidification, nutrients 29 accumulation, salinization. In term of α-diversity, Bacterial-feeding nematodes (BF) were 30 dominant in the 2-year greenhouse over the whole growing season, but plant-parasitic nematodes 31 (PP) became the dominant group in the 10-year greenhouse in the late growing season. 32 Meloidogyne gradually became the dominant group (Relative abundance 70.9%) in the 10-year 33 greenhouse, while Rhabditidae (Relative abundance from 99.8% to 26.8%) was the predominant 34 members in the 2-year greenhouse. For β-diversity, hierarchical clustering analysis, unWeighted 35 UniFrac principal component analysis (PCA) and principal co-ordinates analysis (PCoA) all 36 revealed that soil nematode communities in the two types of greenhouses exhibited significant 37 differences. Redundancy analysis (RDA) showed that soil nematode communities in the 10-year 38 greenhouse were related to high soil organic material, total nitrogen, electrical conductivity and 39 disease index of root knot nematode. Fisher' exact test and Pearson correlation coefficients 40 revealed that Meloidogyne caused main differences in soil nematode communities between the 41 two types of greenhouses. Meanwhile, population dynamics of Meloidogyne were divided into 42 dormant phase, low-level increasing phase and exponential phase during the whole season. In total, 43 the significant variation led different dynamics of soil nematode communities in the 2-year and 44 10-year greenhouse.45

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“…p-Coumaric acid is an intermediate in the phenylpropanoid pathway and a precursor of the biosynthesis of flavonoids and monolignols [15]. p-Coumaric acid has been found in several plant root exudates [16,17] and in soils cultivated with crops [18,19]. It has also identified in decomposing plant residues [20,21] and in soils after being incorporated with plant materials [22,23].…”

Section: Discussionmentioning

confidence: 99%

Tree Fern Cyathea lepifera May Survive by Its Phytotoxic Property

Ida

Iwasaki

Teruya

et al. 2019

Plants

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Cyatheaceae (tree ferns) appeared during the Jurassic period and some of the species still remain. Those species may have some morphological and/or physiological characteristics for survival. A tree fern was observed to suppress the growth of other ligneous plants in a tropical forest. It was assumed that the fern may release toxic substances into the forest floor, but those toxic substances have not yet been identified. Therefore, we investigated the phytotoxicity and phytotoxic substances of Cyathea lepifera (J. Sm. ex Hook.) Copel. An aqueous methanol extract of C. lepifera fronds inhibited the growth of roots and shoots of dicotyledonous garden cress (Lepidum sativum L.), lettuce (Lactuca sativa L.), and alfalfa (Medicago sativa L.), and monocotyledonous ryegrass (Lolium multiflorum Lam.), timothy (Phleum pratense L.), and barnyardgrass (Echinochloa crus-galli (L.) P. Beauv.). The results suggest that C. lepifera fronds may have phytotoxicity and contain some phytotoxic substances. The extract was purified through several chromatographic steps during which inhibitory activity was monitored, and p-coumaric acid and (-)-3-hydroxy-β-ionone were isolated. Those compounds showed phytotoxic activity and may contribute to the phytotoxic effects caused by the C. lepifera fronds. The fronds fall and accumulate on the forest floor through defoliation, and the compounds may be released into the forest soils through the decomposition process of the fronds. The phytotoxic activities of the compounds may be partly responsible for the fern's survival.

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Effects of long-term continuous cropping on soil nematode community and soil condition associated with replant problem in strawberry habitat

Cited by 68 publications

References 61 publications

Transcriptomic analysis reveals recovery strategies in strawberry roots after using a soil amendment in continuous cropping soil

Transcriptomic analysis reveals recovery strategies in strawberry roots after using a soil amendment in continuous cropping soil

Dynamics of Soil Nematode Communities Revealed Significant Variation in Greenhouse with Different Continuous Cropping Years

Tree Fern Cyathea lepifera May Survive by Its Phytotoxic Property

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