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

Chen, Peng; Wang, Yuzhu; Liu, Qizhi; Li, Weihua; Li, Heqin; Li, Xingyue; Zhang, Yuntao

doi:10.1186/s12870-019-2216-x

Cited by 11 publications

(11 citation statements)

References 52 publications

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“…Meanwhile, the CC could cause the accumulation of a similar type of plant-derived exudates. This phenomenon may lead to soil autotoxicity and reduced plant growth [9,10]. Furthermore, this practice could also reduce the diversity and inputs of crop residues into soil, which may also alter soil aggregation and physicochemical properties.…”

Section: Introductionmentioning

confidence: 99%

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Continuous Cropping Alters Multiple Biotic and Abiotic Indicators of Soil Health

et al. 2020

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The continuous cropping (CC) of major agricultural, horticultural, and industrial crops is an established practice worldwide, though it has significant soil health-related concerns. However, a combined review of the effects of CC on soil health indicators, in particular omics ones, remains missing. The CC may negatively impact multiple biotic and abiotic indicators of soil health, fertility, and crop yield. It could potentially alter the soil biotic indicators, which include but are not limited to the composition, abundance, diversity, and functioning of soil micro- and macro-organisms, microbial networks, enzyme activities, and soil food web interactions. Moreover, it could also alter various soil abiotic (physicochemical) properties. For instance, it could increase the accumulation of toxic metabolites, salts, and acids, reduce soil aggregation and alter the composition of soil aggregate-size classes, decrease mineralization, soil organic matter, active carbon, and nutrient contents. All these alterations could accelerate soil degradation. Meanwhile, there is still a great need to develop quantitative ranges in soil health indicators to mechanistically predict the impact of CC on soil health and crop yield gaps. Following ecological principles, we strongly highlight the significance of inter-, mixture-, and rotation-cropping with cover crops to sustain soil health and agricultural production.

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Section: Introductionmentioning

confidence: 99%

“…For instance, a similar type of root exudation may lead to the accumulation of toxic metabolites, and ultimately soil auto-toxicity with time. The soil auto-toxicity may negatively affect soil health and crop yield [10,[18][19][20].…”

Section: Introductionmentioning

confidence: 99%

Continuous Cropping Alters Multiple Biotic and Abiotic Indicators of Soil Health

et al. 2020

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“…Continuous cropping leads to changes in soil ecology, and these changes result in severe retardation of growth and even death in plants [9,15]. Our results showed that CC led to significant decrease in strawberry plant biomass (Fig.…”

Section: Discussionmentioning

confidence: 66%

“…Meanwhile, Li et al provided evidence of metabolic alterations in Andrographis paniculata after CC [14]. Moreover, Chen et al found a possible recovery strategy in strawberry roots after the remediation of CC soil, including an overall decrease in nine defense-related Hsp genes [15]. However, the molecular basis of the response to CC in strawberry remains unclear.…”

Section: Introductionmentioning

confidence: 99%

Transcriptomic analysis provides insight into defensive strategies in response to continuous cropping in strawberry (Fragaria × ananassa Duch.) plants

Chen

et al. 2022

BMC Plant Biol

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Background Strawberries are an important economic fruit crop world-wide. In strawberry cultivation, continuous cropping (CC) can seriously threaten yield and quality. However, our understanding of the gene expression changes in response to CC and during subsequent defense processes is limited. In this study, we analyzed the impact of CC on the transcriptome of strawberry roots using RNA-Seq technology to elucidate the effect of CC and the subsequent molecular changes. Results We found that CC significantly affects the growth of strawberry plants. The transcriptome analysis identified 136 differentially expressed genes (DEGs), including 49 up-regulated and 87 down-regulated DEGs. A Gene Ontology (GO) analysis indicated that the up-regulated DEGs were mainly assigned to defense-related GO terms, and most down-regulated DEGs were assigned to nutrient-related GO terms. Kyoto Encyclopedia of Genes and Genomes (KEGG) analysis revealed that the responsive DEGs were classified in a large number of important biological pathways, such as phenylalanine metabolism, starch and sucrose metabolism, phenylpropanoid biosynthesis, glutathione metabolism and plant-pathogen interaction. We also found that four WRKY transcription factors and three peroxidase genes involved in plant defense pathways were up-regulated in the roots of strawberry plants subjected to CC. Conclusion Several unigenes involved in plant defense processes, such as CNGCs, WRKY transcription factors, PR1, and peroxidase genes with highly variable expression levels between non-CC and CC treatments may be involved in the regulation of CC in strawberry. These results indicate that strawberry roots reallocate development resources to defense mechanisms in response to CC. This study will further deepen our understanding of the fundamental regulatory mechanisms of strawberry resource reallocation in response to CC.

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“…J. Preview tomic profiling of strawberry roots in soil with and without soil amendment revealed gene expression changes in genotype-dependent responses (Chen et al, 2020). There was an overall increase in the expression of nutrient transport genes and a decrease in the expression of defense response genes, which could be one mechanism underlying a recovery strategy in strawberry roots.…”

Section: Talukder Et Al 2018mentioning

confidence: 98%

Autotoxicity in Strawberry Under Recycled Hydroponics and Its Mitigation Methods

Asaduzzaman

Asao

2020

Hortic J

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Strawberry plants are grown in hydroponics for higher quality and yield, as this system excludes soil-borne disease issues. Recycled hydroponics is practiced to make cultivation cost-effective, sustainable, and environmentally friendly. However, due to recycling of hydroponic nutrient solution, plant root exudates accumulate, leading to autotoxicity, a form of allelopathy that inhibits growth and development. In recent decades, commercial cultivation of strawberry under greenhouse and plant factory conditions following recycled hydroponics has been widely adopted globally. Subsequently, yield decline has also been reported due to development of autotoxicity from the accumulated root exudates. In recycled hydroponic systems, strawberry plant growth is inhibited by root exudates that contain mainly phenolic acids in the culture solution. In this regard, elimination of these accumulated root exudates or allelochemicals from the culture solution would restore inhibited plant growth and yield. A number of research studies have been conducted on autotoxicity in strawberry and possible mitigation methods. These studies suggested that addition of activated charcoal in the nutrient solution, supplementation of auxin on leaves, electro-degradation of root exudates in nutrient solution, and supplementation of amino acids and/or LEDs can effectively remove/degrade/mitigate autotoxicity in strawberry grown under recycling hydroponics. This review mainly discusses the autotoxicity phenomenon in strawberry under recycled hydroponics, the responsible allelochemicals and their mechanism of action, mitigation methods and future research endeavors in this field.

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

Cited by 11 publications

References 52 publications

Continuous Cropping Alters Multiple Biotic and Abiotic Indicators of Soil Health

Continuous Cropping Alters Multiple Biotic and Abiotic Indicators of Soil Health

Transcriptomic analysis provides insight into defensive strategies in response to continuous cropping in strawberry (Fragaria × ananassa Duch.) plants

Autotoxicity in Strawberry Under Recycled Hydroponics and Its Mitigation Methods

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