Rotational Strip Bean and Celery Intercropping Alters the Microbial Community to Improve Crop Yield and Soil Nutrients

Horticulturae, Год журнала: 2024, Номер 10(5), С. 432 - 432

Опубликована: Апрель 24, 2024

Rotational strip intercropping involves the strategic combination of stubble and rotational placement intercropped strips, which can improve crop yield. Here, we evaluated effects bean (Phaseolus vulgaris L.) celery (Apium graveolens with bed ratios 1:1 2:2 on yield, soil microbial community nutrition. The ratio had a higher yield than ratio. markedly improved nitrate nitrogen available phosphorus contents beans, potassium celery. reduced bacterial α diversity enhanced fungal both beans Both planting patterns also altered communities found plants. Microorganisms enriched in rhizosphere plants significantly increased nutrient content intercropping, included genera Achromobacter, Luteibacter, Stenotrophomonas, Fusarium, Flavobacterium Preussia rhizosphere, Alternaria, Arthrographis Pluteus, Sphingopyxis Clostridium_sensu_stricto_1 rhizosphere.

Язык: Английский

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Border row effects improved the spatial distributions of maize and peanut roots in an intercropping system, associated with improved yield

Frontiers in Plant Science, Год журнала: 2024, Номер 15

Опубликована: Июнь 26, 2024

Background Border row effects impact the ecosystem functions of intercropping systems, with high direct interactions between neighboring crops in light, water, and nutrients. However, previous studies have mostly focused on aboveground, whereas spatial distribution root system are poorly understood. Field experiments planting box were combined to explore yield, dry matter accumulation, morphological indexes, such as length density (RLD), surface area (RSAD), specific (SRL), diameter (RD), maize peanut interspecific at different soil depths an system. Results In field experiments, yield intercropped significantly increased by 33.45%; however, decreased 13.40%. The land equivalent ratio (LER) maize–peanut was greater than 1, advantage significant. Maize highly competitive ( A = 0.94, CR=1.54), is mainly attributed maize. Intercropped had higher RLD, RSAD, SRL sole maize, lower peanut. interaction zone, increase SRL, RD that peanut, showed plasticity random forest model determined RSAD impacted 15–60 cm, while a significant 30–60 cm. Structural equation modeling revealed morphology indicators effect 30–45 being more pronounced this depth. Conclusion These results show border-row mediate morphology, which could enhance resource use productivity. Therefore, selecting optimal species developing sustainable production systems great significance.

Язык: Английский

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The responses of root exudates and microbiome in the rhizosphere of main plant and aromatic intercrops to soil Cr stress

Environmental Pollution, Год журнала: 2024, Номер 366, С. 125528 - 125528

Опубликована: Дек. 12, 2024

Язык: Английский

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Metabolic variations in root tissues and rhizosphere soils of weak host plants potently lead to distinct host status and chemotaxis regulation of Meloidogyne incognita in intercropping

Molecular Plant Pathology, Год журнала: 2023, Номер 25(1)

Опубликована: Окт. 12, 2023

Abstract Root‐knot nematodes (RKNs) inflict extensive damage to global agricultural production. Intercropping has been identified as a viable tool for combating RKNs, but the mechanisms by which intercropped plants modulate RKN parasitism are still not well understood. Here, we focus on cucumber–amaranth intercropping system. We used range of approaches, including attraction assay, in vitro RNA interference (RNAi), untargeted metabolomics, and hairy root transformation, unveil weak host regulate Meloidogyne incognita chemotaxis towards control infection. Amaranth roots showed direct repellence M. through disrupting its chemotaxis. The RNAi assay demonstrated that Mi‐flp‐1 Mi‐flp‐18 genes (encoding FMRFamide‐like peptides) regulated cucumber controlled Moreover, infection stimulated amaranth accumulate distinct metabolites both tissues rhizosphere soils. In particular, naringenin salicin, enriched specifically soils, inhibited expression . addition, overexpression involved biosynthesis pantothenic acid phloretin, were tissues, delayed development roots. Together, our results reveal status disruption contribute inhibition intercropping.

Язык: Английский

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Deciphering key factors in pathogen-suppressive microbiome assembly in the rhizosphere

Frontiers in Plant Science, Год журнала: 2023, Номер 14

Опубликована: Дек. 5, 2023

In a plant-microbe symbiosis, the host plant plays key role in promoting association of beneficial microbes and maintaining microbiome homeostasis through microbe-associated molecular patterns (MAMPs). The associated provide an additional layer protection for immunity help nutrient acquisition. Despite identical MAMPs pathogens commensals, distinguishes between them promotes enrichment ones while defending against pathogens. rhizosphere is narrow zone soil surrounding living roots. Hence, various biotic abiotic factors are involved shaping responsible pathogen suppression. Efforts have been devoted to modifying composition structure microbiome. Nevertheless, systemic manipulation has challenging, predicting resultant after introduced change difficult. This due involvement that determine assembly result increased complexity microbial networks. Thus, comprehensive analysis critical influence will enable scientists design intervention techniques reshape functions systematically. this review, we give highlights on fundamental concepts suppressiveness concisely explore studies how plants monitor homeostasis. We then emphasize govern pathogen-suppressive assembly. discuss infection enhances by employing cry-for-help strategy examine domestication wipes out defensive genes experiencing syndrome. Additionally, insights into availability pH suppression rhizosphere. finally highlight up-to-date endeavors gain valuable potential strategies which could be reshaped promote development.

Язык: Английский

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