Emergence of plant and rhizospheric microbiota as stable interactomes

Abstract

The growing human population and depletion of resources have necessitated development of sustainable agriculture. Beneficial plant-microbe associations have been known for quite some time now. To maintain sustainability, one could show better reliance upon beneficial attributes of the rhizosphere microbiome. To harness the best agronomic traits, understanding the entire process of recruitment, establishment, and maintenance of microbiota as stable interactome within the rhizosphere is important. In this article, we highlight the process of recruitment and establishment of microbiota within rhizosphere. Further, we have discussed the interlinkages and the ability of multiple (microbial and plant) partners to interact with one another forming a stable plant holobiont system. Lastly, we address the possibility of exploring the knowledge gained from the holobiont system to tailor the rhizosphere microbiome for better productivity and maintenance of agroecosystems. The article provide new insights into the broad principles of stable plant-microbe interactions which could be useful for sustaining agriculture and food security.

Arbuscular Mycorrhizal Fungi Can Compensate for the Loss of Indigenous Microbial Communities to Support the Growth of Liquorice (Glycyrrhiza uralensis Fisch.)

“…However, this competition also depends on the ecological environment. Under stressful conditions, such as low nutrient availability, plant responses to the competition between AM and other microorganisms may change, for example, from synergistic to antagonistic, and affect plant performance [57]. Miransari et al [49] revealed that, when the soil is highly compacted, competition for soil resources among soil microorganisms, including AM fungi and other microbes, increases.…”

Recovery and Community Succession of theZostera marinaRhizobiome After Transplantation

“…The ‘DADA2’ package (v 1.10.1) (78) within the Bioconductor software environment (v 3.8) (79) of the R Project (v 3.5.2) (80) was used to process raw sequencing reads. All reads were initially quality filtered using the ‘filterAndTrim’ command with default settings (“maxN=0, maxEE=c(2,2), truncQ=2”). To avoid computational limitations resulting from the fact that multiple libraries contained >>100000 reads, the resulting high-quality reads of libraries were randomly down-sampled to 15000 paired-end reads (BioProject ID: PRJNA591021).…”

“…The rhizobiome has long been recognized to have important impacts on plant growth and health (1). The microbes of the rhizobiome, which directly interact with and are influenced by the roots (2), can benefit their plant hosts through recycling and producing bioavailable nutrients (3–5), increasing disease resistance through competition with or inhibition of pathogens (6), and influencing plant growth and stress tolerance through production of phytohormones (7, 8). Community composition within the rhizobiome is shaped by plant metabolism and physiology, which controls rhizodeposition, exudation of organic carbon and nitrogen, and release of defense compounds (7, 9, 10).…”

Hydrological and soil physiochemical variables determine the rhizospheric microbiota in subtropical lakeshore areas

“…Rhizospheric microbiota (RM) is a vital component of the rhizosphere ecosystem in lakeshore areas. The interaction of plant roots with innumerable microbial communities within this niche has a considerable impact on developmental stages of lakeshore plants and their tolerance to stressful conditions (Shilev et al, 2001;Dennis, Miller & Hirsch, 2010;Gill et al, 2016;Bandyopadhyay et al, 2017). For instance, higher plant growth and biomass were obtained when bacteria selected from metal-contaminated soil were added to experimental soil (Shilev et al, 2001).…”

“…Plant-associated microbes are considered as “helpers” that can provide additional genes to the host for acclimatization of the latter in changing or distinctive environmental conditions ( Vandenkoornhuyse et al, 2015 ), although they also associated with soil-borne microbial diseases ( Mao et al, 2019 ; Mao et al, 2020 ). Recently, the recruitment of RM into the rhizosphere gained much attention among researchers ( Standing et al, 2005 ; Bandyopadhyay et al, 2017 ; Zhang et al, 2019 ; Kavamura et al, 2020 ). Related studies with terrestrial plants have shown that the factors influencing microbial recruitment include plant genotype and age, edaphic factors, geographical location, and climatic changes ( Berg & Smalla, 2009 ; Bulgarelli et al, 2012 ; Tkacz et al, 2015 ; Bandyopadhyay et al, 2017 ).…”