Plant–microbiome interactions: from community assembly to plant health

Nature Reviews Microbiology, Год журнала: 2020, Номер 18(11), С. 607 - 621

Опубликована: Авг. 12, 2020

Язык: Английский

---

Linking Plant Secondary Metabolites and Plant Microbiomes: A Review

Frontiers in Plant Science, Год журнала: 2021, Номер 12

Опубликована: Март 2, 2021

Plant secondary metabolites (PSMs) play many roles including defense against pathogens, pests, and herbivores; response to environmental stresses, mediating organismal interactions. Similarly, plant microbiomes participate in of the above-mentioned processes directly or indirectly by regulating metabolism. Studies have shown that plants can influence their microbiome secreting various and, turn, may also impact metabolome host plant. However, not much is known about communications between interacting partners phenotypic changes. In this article, we review patterns potential underlying mechanisms interactions PSMs microbiomes. We describe recent developments analytical approaches methods field. The applications these new increased our understanding relationships Though current studies primarily focused on model organisms, results obtained so far should help future agriculturally important facilitate development manipulate PSMs–microbiome with predictive outcomes for sustainable crop productions.

Язык: Английский

---

Bio-organic fertilizers stimulate indigenous soil Pseudomonas populations to enhance plant disease suppression

Microbiome, Год журнала: 2020, Номер 8(1)

Опубликована: Сен. 22, 2020

Abstract Background Plant diseases caused by fungal pathogen result in a substantial economic impact on the global food and fruit industry. Application of organic fertilizers supplemented with biocontrol microorganisms ( i.e. bioorganic fertilizers) has been shown to improve resistance against plant pathogens at least part due impacts structure function resident soil microbiome. However, it remains unclear whether such improvements are driven specific action microbial inoculants, populations naturally fertilizer or physical-chemical properties compost substrate. The aim this study was seek ecological mechanisms involved disease suppressive activity bio-organic fertilizers. Results To disentangle mechanism action, we conducted an experiment tracking Fusarium wilt banana changes communities over three growth seasons response following four treatments: (containing Bacillus amyloliquefaciens W19), fertilizer, sterilized B . W19. We found that which re-inoculated provided similar degree suppression as non-sterilized across cropping seasons. further observed these treatments is linked communities, specifically leading increases Pseudomonas spp.. Observed correlations between amendment indigenous spp. might underlie were studied laboratory pot experiments. These studies revealed bacterial taxa synergistically increase biofilm formation likely acted plant-beneficial consortium pathogen. Conclusion Together demonstrate product inoculum within its This knowledge should help design more efficient biofertilizers designed promote function.

Язык: Английский

---

Integrating Biochar, Bacteria, and Plants for Sustainable Remediation of Soils Contaminated with Organic Pollutants

Environmental Science & Technology, Год журнала: 2022, Номер 56(23), С. 16546 - 16566

Опубликована: Окт. 27, 2022

The contamination of soil with organic pollutants has been accelerated by agricultural and industrial development poses a major threat to global ecosystems human health. Various chemical physical techniques have developed remediate soils contaminated pollutants, but challenges related cost, efficacy, toxic byproducts often limit their sustainability. Fortunately, phytoremediation, achieved through the use plants associated microbiomes, shown great promise for tackling environmental pollution; this technology tested both in laboratory field. Plant-microbe interactions further promote efficacy plant growth-promoting bacteria (PGPB) used assist remediation pollutants. However, efficiency microbe-assisted phytoremediation can be impeded (i) high concentrations secondary toxins, (ii) absence suitable sink these (iii) nutrient limitations, (iv) lack continued release microbial inocula, (v) shelter or porous habitats planktonic organisms. In regard, biochar affords unparalleled positive attributes that make it bacterial carrier health enhancer. We propose several barriers overcome integrating plants, PGPB, soil. Here, we explore mechanisms which PGPB soils, thereby improve analyze cost-effectiveness, feasibility, life cycle, practicality integration sustainable restoration management

Язык: Английский

---

An extended root phenotype: the rhizosphere, its formation and impacts on plant fitness

The Plant Journal, Год журнала: 2020, Номер 103(3), С. 951 - 964

Опубликована: Апрель 23, 2020

Plants forage soil for water and nutrients, whose distribution is patchy often dynamic. To improve their foraging activities, plants have evolved mechanisms to modify the physicochemical properties microbial communities of rhizosphere, i.e. compartment under influence roots. This dynamic interplay in root-soil-microbiome interactions creates emerging that impact plant nutrition health. As a consequence, rhizosphere can be considered an extended root phenotype, manifestation effects genes on environment inside and/or outside organism. Here, we review current understanding how shape benefits it confers fitness. We discuss future research challenges applying solutions crops will enable us harvest phenotype.

Язык: Английский

---

Insights into the Interactions among Roots, Rhizosphere, and Rhizobacteria for Improving Plant Growth and Tolerance to Abiotic Stresses: A Review

Cells, Год журнала: 2021, Номер 10(6), С. 1551 - 1551

Опубликована: Июнь 19, 2021

Abiotic stresses, such as drought, salinity, heavy metals, variations in temperature, and ultraviolet (UV) radiation, are antagonistic to plant growth development, resulting an overall decrease yield. These stresses have direct effects on the rhizosphere, thus severely affect root growth, thereby affecting health, productivity. However, growth-promoting rhizobacteria that colonize rhizosphere/endorhizosphere protect roots from adverse of abiotic stress facilitate by various indirect mechanisms. In plants constantly interacting with thousands these microorganisms, yet it is not very clear when how complex root, interactions occur under stresses. Therefore, present review attempts focus root-rhizosphere rhizobacterial respond interactions, role Further, focuses underlying mechanisms employed for improving architecture tolerance

Язык: Английский

---

Linking root exudation to belowground economic traits for resource acquisition

New Phytologist, Год журнала: 2021, Номер 233(4), С. 1620 - 1635

Опубликована: Ноя. 11, 2021

The concept of a root economics space (RES) is increasingly adopted to explore trait variation and belowground resource-acquisition strategies. Much progress has been made on interactions morphology mycorrhizal symbioses. However, exudation, with significant carbon (C) cost (c. 5-21% total photosynthetically fixed C) enhance resource acquisition, remains missing link in this RES. Here, we argue that incorporating exudation into the structure RES key holistic understanding soil nutrient acquisition. We highlight different functional roles exudates phosphorus (P) nitrogen (N) Thereafter, synthesize emerging evidence illustrates how interacts symbioses at level species individual plant contrasting patterns evolved P-impoverished vs N-limited environments. Finally, propose new conceptual framework, integrating three groups traits better capture complexity Such deeper integrated dynamic morphology, will provide valuable insights mechanisms underlying coexistence for sustainable managed systems.

Язык: Английский

---

Root exudate signals in plant–plant interactions

Plant Cell & Environment, Год журнала: 2020, Номер 44(4), С. 1044 - 1058

Опубликована: Сен. 18, 2020

Plant-to-plant signalling is a key mediator of interactions among plant species. Plants can perceive and respond to chemical cues emitted from their neighbours, altering survival performance, impacting coexistence community assembly. An increasing number studies indicate root exudates as players in plant-to-plant signalling. Root mediate detection behaviour, kin recognition, flowering production, driving inter- intra-specific facilitation cropping systems mixed-species plantations. Altered may be attributed the components within exudates. ethylene, strigolactones, jasmonic acid, (-)-loliolide allantoin are chemicals that convey information on local conditions plant-plant interactions. These root-secreted appear ubiquitous plants trigger series belowground responses intra-specifically, involving molecular events biosynthesis, secretion action. The signals, mainly mediated by ATP-binding cassette transporters, critical. Root-secreted mechanisms rapidly revealing multitude fascinating However, many particularly species-specific signals underlying mechanisms, remain uncovered due methodological limitations root-soil A thorough understanding will offer ecological implications potential applications for sustainable agriculture.

Язык: Английский

---

Root Exudates: Mechanistic Insight of Plant Growth Promoting Rhizobacteria for Sustainable Crop Production

Frontiers in Microbiology, Год журнала: 2022, Номер 13

Опубликована: Июль 14, 2022

The breaking silence between the plant roots and microorganisms in rhizosphere affects growth physiology by impacting biochemical, molecular, nutritional, edaphic factors. components of root exudates are associated with microbial population, notably, growth-promoting rhizobacteria (PGPR). information accessible to date demonstrates that PGPR is specific plant's roots. However, inadequate for developing bio-inoculation/bio-fertilizers crop concern, satisfactory results at field level. There a need explore perfect candidate meet yield. functions their chemotaxis mobility toward triggered cluster genes induced exudates. Some reports have indicated benefit productivity, yet methodical examination rhizosecretion its consequences phytoremediation not been made. In light afore-mentioned facts, present review, mechanistic insight recent updates on recruitment improve production level methodically addressed.

Язык: Английский

---

Diatom modulation of select bacteria through use of two unique secondary metabolites

Proceedings of the National Academy of Sciences, Год журнала: 2020, Номер 117(44), С. 27445 - 27455

Опубликована: Окт. 16, 2020

Unicellular eukaryotic phytoplankton, such as diatoms, rely on microbial communities for survival despite lacking specialized compartments to house microbiomes (e.g., animal gut). Microbial have been widely shown benefit from diatom excretions that accumulate within the microenvironment surrounding phytoplankton cells, known phycosphere. However, mechanisms enable diatoms and other unicellular eukaryotes nurture specific by fostering beneficial bacteria repelling harmful ones are mostly unknown. We hypothesized exudates may tune employed an integrated multiomics approach using ubiquitous Asterionellopsis glacialis reveal how it modulates its naturally associated bacteria. show A. reprograms transcriptional metabolic profiles in response secrete a suite of central metabolites two unusual secondary metabolites, rosmarinic acid azelaic acid. While utilized potential bacterial symbionts opportunists alike, promotes attachment simultaneously suppresses opportunists. Similarly, enhances growth while inhibiting opportunistic ones. further is numerically rare but globally distributed world's oceans taxonomically restricted handful genera. Our results demonstrate innate ability important group modulate select their consortia, similar higher eukaryotes, unique regulate behavior inversely across different populations.

Язык: Английский

---