Microbiome‐Driven Nutrient Fortification in Plants

Sidorova, Irina; Voronina, Elena

doi:10.1002/9781119505457.ch11

Cited by 2 publications

(2 citation statements)

References 68 publications

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“…In temperate grasslands, 1-5% of C and N in soil is stored in living microbial biomass, which is estimated to be 1-2 t ha −1 [180,186]. Plant-associated microbiota are well known for their ability to mobilise nutrients that are not readily available to plants, such as inorganic phosphate and iron, through solubilisation, mineralisation, or excretion via iron-chelating siderophores [187].…”

Section: Increased Soil Biodiversity and Microbial Functionmentioning

confidence: 99%

Regenerative Agriculture—A Literature Review on the Practices and Mechanisms Used to Improve Soil Health

et al. 2023

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Conventional farming practices can lead to soil degradation and a decline in productivity. Regenerative agriculture (RA) is purported by advocates as a solution to these issues that focuses on soil health and carbon sequestration. The fundamental principles of RA are to keep the soil covered, minimise soil disturbance, preserve living roots in the soil year round, increase species diversity, integrate livestock, and limit or eliminate the use of synthetic compounds (such as herbicides and fertilisers). The overall objectives are to rejuvenate the soil and land and provide environmental, economic, and social benefits to the wider community. Despite the purported benefits of RA, a vast majority of growers are reluctant to adopt these practices due to a lack of empirical evidence on the claimed benefits and profitability. We examined the reported benefits and mechanisms associated with RA against available scientific data. The literature suggests that agricultural practices such as minimum tillage, residue retention, and cover cropping can improve soil carbon, crop yield, and soil health in certain climatic zones and soil types. Excessive use of synthetic chemicals can lead to biodiversity loss and ecosystem degradation. Combining livestock with cropping and agroforestry in the same landscape can increase soil carbon and provide several co-benefits. However, the benefits of RA practices can vary among different agroecosystems and may not necessarily be applicable across multiple agroecological regions. Our recommendation is to implement rigorous long-term farming system trials to compare conventional and RA practices in order to build knowledge on the benefits and mechanisms associated with RA on regional scales. This will provide growers and policy-makers with an evidence base from which to make informed decisions about adopting RA practices to realise their social and economic benefits and achieve resilience against climate change.

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Section: Increased Soil Biodiversity and Microbial Functionmentioning

confidence: 99%

Regenerative Agriculture—A Literature Review on the Practices and Mechanisms Used to Improve Soil Health

et al. 2023

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“…R. tropici has outstanding stress resistance [4] and has been successfully used as a P. vulgaris inoculant in South America [5]. Diverse AMFs have been used as inoculants in agriculture [6] to promote nutrient mobilization [7,8], mineral uptake [9] and general plant growth [10]. To some extent, AMF-inoculated plants had enhanced photosynthesis, and upregulate osmoprotectans [11].…”

Section: Introductionmentioning

confidence: 99%

Rhizobium tropici and Riboflavin Amendment Condition Arbuscular Mycorrhiza Colonization in Phaseolus vulgaris L.

et al. 2023

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Phaseolus vulgaris L. (Leguminosae) forms symbioses with arbuscular mycorrhizal fungi (AMF) and nitrogen-fixing rhizobia (NFB). The tripartite relationship uses molecular singals to establish intracellular symbioses in roots. The goal of this study was to determine if Rhizobium tropici CIAT 899 and exogenous riboflavin (vitamin B2) have an effect on AMF species selection and root colonization of P. vulgaris. Using SSU rRNA fragment amplification of DNA extracted from P. vulgaris roots, we found that the presence of R. tropici altered the relative distribution of AMF species. Dominikia bernensis (Ohel) was the most abundant AMF species in P. vulgaris roots but when R. tropici was co-inoculated, Glomus species dominated. Rhizobacteria such as R. tropici, secrete riboflavin and could affect AMF symbiosis. Addition of 50 μM riboflavin to P. vulgaris, increased plant growth (28%), dry nodule weight (18%), AMF colonization (248%) and mycorrhizal vesicle frequency (56%) in bean roots. 3.12 and 12.5 µM riboflavin favored the presence of Glomus macrocarpum in P. vulgaris roots. This work provides de basis for further investigation of rhizobial and mycorrhizal co-inoculation of Phaseolus vulgaris bean.

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Microbiome‐Driven Nutrient Fortification in Plants

Cited by 2 publications

References 68 publications

Regenerative Agriculture—A Literature Review on the Practices and Mechanisms Used to Improve Soil Health

Regenerative Agriculture—A Literature Review on the Practices and Mechanisms Used to Improve Soil Health

Rhizobium tropici and Riboflavin Amendment Condition Arbuscular Mycorrhiza Colonization in Phaseolus vulgaris L.

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