Bacterial Endophyte Colonization and Distribution within Plants

Microorganisms, Год журнала: 2017, Номер 5(4), С. 77 - 77

Опубликована: Ноя. 25, 2017

The plant endosphere contains a diverse group of microbial communities. There is general consensus that these communities make significant contributions to health. Both recently adopted genomic approaches and classical microbiology techniques continue develop the science plant-microbe interactions. Endophytes are symbionts residing within for majority their life cycle without any detrimental impact host plant. use natural offers an opportunity maximize crop productivity while reducing environmental impacts agriculture. promote growth through nitrogen fixation, phytohormone production, nutrient acquisition, by conferring tolerance abiotic biotic stresses. Colonization endophytes crucial providing benefits Endophytic colonization refers entry, multiplication endophyte populations Lately, microbiome research has gained considerable attention but mechanism allowing plants recruit largely unknown. This review summarizes currently available knowledge about endophytic bacteria in various species, specifically discusses maize Populus endophytes.

Язык: Английский

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Transfer of antibiotic resistance from manure-amended soils to vegetable microbiomes

Environment International, Год журнала: 2019, Номер 130, С. 104912 - 104912

Опубликована: Июнь 17, 2019

The increasing antimicrobial resistance in manure-amended soil can potentially enter food chain, representing an important vehicle for antibiotic genes (ARGs) transmission into human microbiome. However, the pathways of ARGs from to plant remain unclear. Here, we explored impacts poultry and cattle manure application on patterns resistome lettuce microbiome including rhizosphere, root endosphere, leaf endosphere phyllosphere, identify potential routes soil-plant system. After 90 days cultivation, a total 144 were detected all samples using high-throughput quantitative PCR. Rhizosphere harbored most diverse compared with other components lettuce. Cattle increased abundance endophyte, while endophyte suggesting that may have stronger impact resistomes. ARG profiles significantly correlated bacterial community, enrichment resistomes was strongly affected by taxa Solibacteres, Chloroflexi, Acidobacteria, Gemm-1 Gemmatimonadetes, as revealed network analyses. Moreover, overlaps between tissues identified, which indicated environmental are interconnected. Our findings provide insights manured vegetables, highlight risks migration chain.

Язык: Английский

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Endophytic microbes: biodiversity, plant growth-promoting mechanisms and potential applications for agricultural sustainability

Antonie van Leeuwenhoek, Год журнала: 2020, Номер 113(8), С. 1075 - 1107

Опубликована: Июнь 2, 2020

Язык: Английский

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Plant-soil-microbes: A tripartite interaction for nutrient acquisition and better plant growth for sustainable agricultural practices

Environmental Research, Год журнала: 2022, Номер 214, С. 113821 - 113821

Опубликована: Июль 8, 2022

Язык: Английский

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Shaping the leaf microbiota: plant–microbe–microbe interactions

Journal of Experimental Botany, Год журнала: 2020, Номер 72(1), С. 36 - 56

Опубликована: Сен. 7, 2020

The aerial portion of a plant, namely the leaf, is inhabited by pathogenic and non-pathogenic microbes. leaf's physical chemical properties, combined with fluctuating often challenging environmental factors, create surfaces that require high degree adaptation for microbial colonization. As consequence, specific interactive processes have evolved to establish plant leaf niche. Little known about impact host immune system on phyllosphere colonization These organisms can trigger basal defenses benefit priming enhanced resistance pathogens. In most disease responses, signals are recognized extra- or intracellular receptors. interactions tend be species it unclear how they shape communities. natural habitats, microbe-microbe also important shaping To protect resources, colonizers developed direct antagonistic manipulation strategies fight competitors. Phyllosphere-colonizing microbes respond abiotic biotic fluctuations therefore an resource adaptive protective traits. Understanding complex regulatory host-microbe-microbe networks needed transfer current knowledge biotechnological applications such as plant-protective probiotics.

Язык: Английский

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Bioactive Products From Plant-Endophytic Gram-Positive Bacteria

Frontiers in Microbiology, Год журнала: 2019, Номер 10

Опубликована: Март 29, 2019

Endophytes constitute plant-colonizing microorganisms in a mutualistic symbiosis relationship. They are found most ecosystems reducing plant crops' biotic and abiotic stressors by stimulating immune responses, excluding pathogens niche competition, participating antioxidant activities phenylpropanoid metabolism, whose activation produces defense, structural support, survival molecules. In fact, metabolomic studies have demonstrated that endophyte genes associated to specific metabolites involved growth promotion (PGP) hormones production such as auxins gibberellins or protective agents against microbial pathogens, cancer, insect pests, but eco-friendly eco-safe. A number of Gram-positive endophytes isolated from agriculture, forest, mangrove, medicinal plants, mainly related the Firmicutes phyla, possess distinctive biocontrol growth-promoting activities. general, Actinobacteria Bacillus produce aromatic compounds, lipopeptides, hormones, polysaccharides, several enzymes linked thus representing high potential for PGP crop management strategies. Furthermore, been shown with antimicrobial antitumor activities, useful medicine, veterinary areas. The great diversity, their production, adaptation stress conditions make them suitable unlimited source novel metabolites, application could reduce agrochemicals usage food drugs production.

Язык: Английский

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Microbiomes inhabiting rice roots and rhizosphere

FEMS Microbiology Ecology, Год журнала: 2019, Номер 95(5)

Опубликована: Март 26, 2019

Land plants directly contact soil through their roots. An enormous diversity of microbes dwelling in root-associated zones, including endosphere (inside root), rhizoplane (root surface) and rhizosphere (soil surrounding the root surface), play essential roles ecosystem functioning plant health. Rice is a staple food that feeds over 50% global population. Its unique niche, which often characterized by an oxic region (e.g. rhizosphere) surrounded anoxic bulk soil. This oxic-anoxic interface has been recognized as pronounced hotspot supports dynamic biogeochemical cycles mediated various functional microbial groups. Considering significance rice production upon security methane budget, novel insights into how overall community (i.e. microbiome) system influences key to improving crop health sustainable productivity paddy ecosystems, alleviating emissions. mini-review summarizes current understanding compartments some extent, especially rhizosphere, makes comparison structures between other crops/plants. Moreover, this paper describes interactions root-related microbiomes plants, further discusses factors shaping microbiomes.

Язык: Английский

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Endophytes and their potential in biotic stress management and crop production

Frontiers in Microbiology, Год журнала: 2022, Номер 13

Опубликована: Окт. 17, 2022

Biotic stress is caused by harmful microbes that prevent plants from growing normally and also having numerous negative effects on agriculture crops globally. Many biotic factors such as bacteria, fungi, virus, weeds, insects, nematodes are the major constrains of tends to increase reactive oxygen species affect physiological molecular functioning led decrease in crop productivity. Bacterial fungal endophytes solution overcome tasks faced with conventional farming, these environment friendly microbial commodities colonize plant tissues without causing any damage. Endophytes play an important role host fitness, uptake nutrients, synthesis phytohormone diminish injury triggered pathogens via antibiosis, production lytic enzymes, secondary metabolites, hormone activation. They reported help coping stress, improving soil health, respectively. Therefore, usage biofertilizers biocontrol agent have developed eco-friendly substitute destructive chemicals for development mitigation stress. Thus, this review highlighted potential biofertilizers, agent, maintenance health sustainable agriculture.

Язык: Английский

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The microbiota of the grapevine holobiont: A key component of plant health

Journal of Advanced Research, Год журнала: 2021, Номер 40, С. 1 - 15

Опубликована: Дек. 22, 2021

Grapevine is a woody, perennial plant of high economic importance worldwide. Like other plants, it lives in close association with large numbers microorganisms. Bacteria, fungi and viruses are structured communities, each individual can be beneficial, neutral or harmful to the plant. In this sense, microorganisms interact regulate functions (including immunity) even provide new ones. Thus, grapevine associated its microbial communities constitutes supra-organism, also called holobiont, whose functioning linked established plant-microorganism interactions. The overall health may conditioned by diversity structure communities. Consequently, an optimal composition will consist balance allowing healthy. Conversely, imbalance populations could lead (or generated by) decline microbiome active component host responsive biotic abiotic changes; that respect, better understanding most important drivers microbiomes needed. This article presents current state art about microbiota according compartments influencing factors. We focus on situations imbalance, particular during disease decline. Finally, we discuss possible interest engineering agrosystem such as viticulture.

Язык: Английский

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Bacterial Endophytes: The Hidden Actor in Plant Immune Responses against Biotic Stress

Plants, Год журнала: 2021, Номер 10(5), С. 1012 - 1012

Опубликована: Май 19, 2021

Bacterial endophytes constitute an essential part of the plant microbiome and are described to promote health by different mechanisms. The close interaction with host leads important changes in physiology plant. Although beneficial bacteria use same entrance strategies as bacterial pathogens colonize enter inner tissues, develops select allow specific genera bacteria. In addition, may modify their own genome adapt or avoid defense machinery host. present review gives overview about inhabiting phytosphere, diversity, Direct indirect defenses promoted plant–endophyte symbiont exert role controlling against stresses, here, more specifically, is discussed biotic stress. Defenses that should be considered emission volatiles antibiotic compounds, but also induction basal boosting immunity priming defenses. primed encompass pathogenesis-related protein genes (PR family), antioxidant enzymes, secondary metabolism.

Язык: Английский

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