Ensuring future food security and resource sustainability: insights into the rhizosphere

Wang, Liyang; Rengel, Zed; Zhang, Kai; Jin, Kemo; Lyu, Yang; Zhang, Lin; Cheng, Lingyun; Zhang, Fusuo; Shen, Jianbo

doi:10.1016/j.isci.2022.104168

Cited by 11 publications

(10 citation statements)

References 194 publications

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“…Alterations in the composition of the rhizosphere microbial community were due to fertilization (Guo et al, 2020), crop type (Prommer et al, 2020), and above-ground processes related to crop diversity, such as microclimate changes related to plant canopy cover (Delgado-Baquerizo et al, 2018), root exudates (Mommer et al, 2016), and soil environmental factors (Stefan et al, 2021). Root exudates are important factors that affect the rhizosphere microbial communities (Wang et al, 2022).To further clarify our second aim the relationship between flavonoids root exudates and soil bacterial community composition in intercropping systems, spearman's correlation analysis revealed significant correlations between specific root exudates and bacterial community composition. Among these, cyanidin 3-sambubioside 5-glucosideand cyanidin 3-O-(6-Op-coumaroyl) glucoside-5-O-glucoside; shisonin had frequent significantly positive correlations with bacterial communities; the greatest correlation was with Bradyrhizobium (Figure 6A and Supplementary Table S6), indicating that some root exudates secreted by the root changed the bacterial community composition, while, some bacterial metabolic pathways also changed to adapt to environmental stress (Zhao et al, 2022b).…”

Section: Discussionmentioning

confidence: 99%

“…Studies have also shown that more than half of the increase in nitrogen fixation in intercropped broad beans is due to key bacteria, such as, Agromyces , Arthrobacter , Bacillus , Lysobacter , Paenibacillus , Gemmatimonas , Heliobacillus , Natronocella , and Sorangium recruited by maize root exudates play an important role in root interactions ( Hu et al, 2021 ). In addition, plants produce secondary metabolites and interspecific interactions affect the growth of specific microorganisms in the rhizosphere ( Wang et al, 2022 ). For example, the concentration of flavonoids increases in root exudates and is enhanced between AMF and Triadica sebifera ( Tian et al, 2021 ).…”

Section: Introductionmentioning

confidence: 99%

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Maize and peanut intercropping improves the nitrogen accumulation and yield per plant of maize by promoting the secretion of flavonoids and abundance of Bradyrhizobium in rhizosphere

et al. 2022

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Belowground interactions mediated by root exudates are critical for the productivity and efficiency of intercropping systems. Herein, we investigated the process of microbial community assembly in maize, peanuts, and shared rhizosphere soil as well as their regulatory mechanisms on root exudates under different planting patterns by combining metabolomic and metagenomic analyses. The results showed that the yield of intercropped maize increased significantly by 21.05% (2020) and 52.81% (2021), while the yield of intercropped peanut significantly decreased by 39.51% (2020) and 32.58% (2021). The nitrogen accumulation was significantly higher in the roots of the intercropped maize than in those of sole maize at 120 days after sowing, it increased by 129.16% (2020) and 151.93% (2021), respectively. The stems and leaves of intercropped peanut significantly decreased by 5.13 and 22.23% (2020) and 14.45 and 24.54% (2021), respectively. The root interaction had a significant effect on the content of ammonium nitrogen (NH4+-N) as well as the activities of urease (UE), nitrate reductase (NR), protease (Pro), and dehydrogenase (DHO) in the rhizosphere soil. A combined network analysis showed that the content of NH4+-N as well as the enzyme activities of UE, NR and Pro increased in the rhizosphere soil, resulting in cyanidin 3-sambubioside 5-glucoside and cyanidin 3-O-(6-Op-coumaroyl) glucoside-5-O-glucoside; shisonin were significantly up-regulated in the shared soil of intercropped maize and peanut, reshaped the bacterial community composition, and increased the relative abundance of Bradyrhizobium. These results indicate that interspecific root interactions improved the soil microenvironment, regulated the absorption and utilization of nitrogen nutrients, and provided a theoretical basis for high yield and sustainable development in the intercropping of maize and peanut.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Maize and peanut intercropping improves the nitrogen accumulation and yield per plant of maize by promoting the secretion of flavonoids and abundance of Bradyrhizobium in rhizosphere

et al. 2022

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“…A redução da MSR em SFT (fonte com P totalmente solúvel) evidencia que os benefícios dos microrganismos para as plantas não vêm sem custo. Pois é na rizosfera onde ocorre o "trade-Off" (troca de nutrientes) de carbono (exsudatos radiculares da planta) e sinais pela prestação dos serviços microbianos com a planta, por exemplo, mineralização e solubilização de P do solo (Wang et al, 2022).…”

Section: Resultsunclassified

“…Os resultados parecem contraditórios, por ocorrer respostas na absorção de P pela planta, mas não encontramos efeito no solo. Porém, nossa amostragem foi do "Bulk soil" (perfil do vaso) e não solo rizosférico, região onde a depleção de P ocorre ligeiramente mais rápido, e onde também se encontra maior riqueza de carboxilatos que modulam as trocas plantamicrorganismo (Wang et al, 2022).…”

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Desenvolvimento E Nutrição Inicial Do Milho Com Inoculação Do Biomaphos® Associado a Fontes Fosfatadas

Brito¹,

Rezende²,

Silva³

et al. 2022

Agri-Environ Sci

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Os solos brasileiros apresentam características mineralógicas que favorecem a adsorção do fósforo (P) e isto reduz a eficiência da adubação fosfatada. Uma estratégia para aumentar a acessibilidade do P residual (legacy P) no solo às plantas são o uso de microrganismos solubilizadores de fosfato. Aqui o objetivo foi avaliar o desenvolvimento e nutrição inicial do milho, e atributos químicos do solo após inoculação de BiomaPhos® associados a fontes fosfatadas de alta e baixa solubilidade. O experimento foi conduzido em casa de vegetação, em delineamento em blocos casualizados, em esquema fatorial (2x2), com seis repetições. O primeiro fator foi fosfato natural reativo e superfosfato triplo; e o segundo fator, a inoculação ou não de BiomaPhos®. Os fertilizantes foram aplicados em vasos com capacidade de 5 dm³ de solo e os inoculantes foram aplicados nas sementes no momento da semeadura. Foram avaliados parâmetros biométricos, atributos químicos do solo e teor e acúmulo de P foliar no milho aos 45 dias após emergência (DAE). Houve interação significativa (p<0,05) do efeito das fontes de P com inoculante para as variáveis: diâmetro do colo (DC); massa seca da raiz e da parte aérea (MSR e MSPA); relação parte aérea com a raiz (RPAR); massa seca total (MST); P foliar (Pfo); absorção de P (AP) e pH. Portanto, a associação entre os inoculantes solubilizadores de P e fertilizantes fosfatados promoveram crescimento da biomassa radicular e alteraram a disponibilidade e absorção de P durante os 45 DAE da cultura do milho. O BiomaPhos® foi mais eficiente em fonte com baixa solubilidade (FN), e seus efeitos são nulos ou negativos com fontes de P solúveis, ou seja, os microrganismos modulam o desenvolvimento do milho, o qual verificou respostas positivas do acúmulo de biomassa, teor e absorção de P do milho em estádio V6.

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“…Mech. (2023) 023401 just a small part of food security, and one has to consider climate change, trade policy, food imports, supply of other agricultural inputs, labor, resource sustainability, and so on [41][42][43][44].…”

Section: The Indicators S Inmentioning

confidence: 99%

Link stability analysis of temporal international fertilizer trade networks

Li¹,

Wang²,

Xie³

et al. 2023

J. Stat. Mech.

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Fertilizer availability is crucial for global food security, and international fertilizer trade plays a vital role in reallocating fertilizers across multiple economies. However, the stability of international fertilizer trade relationships between economies has not been studied. Using 29 year records of the global fertilizer trade from 1990 to 2018, we construct three temporal networks linked to three primary nutrients (nitrogen N, phosphorus P2O5, and potash K2O). After introducing the link stability indicator to the international fertilizer trade system, which shows a very strong positive correlation with whether the trade will continue in the future, we analyze the factors influencing the stability of the fertilizer trade and provide advice for trading participants to establish highly stable transactions. The supply side has a greater impact on the stability of the fertilizer trade than the demand side. For exporting economies, stable exports need to focus on the counterparty’s real demand rather than its economic situation. For importing economies, intermediaries and producers with good economic conditions are stable trading partners, and trade that is geographically closer is always more stable. The methodology used for link stability analysis in this work can be applied to analyzing other directed temporal networks.

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Ensuring future food security and resource sustainability: insights into the rhizosphere

Cited by 11 publications

References 194 publications

Maize and peanut intercropping improves the nitrogen accumulation and yield per plant of maize by promoting the secretion of flavonoids and abundance of Bradyrhizobium in rhizosphere

Maize and peanut intercropping improves the nitrogen accumulation and yield per plant of maize by promoting the secretion of flavonoids and abundance of Bradyrhizobium in rhizosphere

Desenvolvimento E Nutrição Inicial Do Milho Com Inoculação Do Biomaphos® Associado a Fontes Fosfatadas

Link stability analysis of temporal international fertilizer trade networks

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