Unique and common traits in mycorrhizal symbioses

Nature Reviews Microbiology, Год журнала: 2020, Номер 18(11), С. 649 - 660

Опубликована: Июль 21, 2020

Язык: Английский

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Biological Control of Plant-Parasitic Nematodes by Filamentous Fungi Inducers of Resistance: Trichoderma, Mycorrhizal and Endophytic Fungi

Frontiers in Microbiology, Год журнала: 2020, Номер 11

Опубликована: Май 25, 2020

Plant-parasitic-nematodes represent a major threat to the agricultural production of different crops worldwide. Due high toxicity chemical nematicides, it is necessary develop new control strategies against nematodes. In this respect, filamentous fungi can be an interesting biocontrol alternative. The genus Trichoderma, mycorrhizal and endophytic are main groups studied used as biological agents (BCAs) nematodes resistance inducers. They able reduce damage caused by plant-parasitic directly parasitism, antibiosis, paralysis lytic enzymes. But they also minimise harm space resource-competition, providing higher nutrient water uptake plant, or modifying root morphology, and/or rhizosphere interactions, that constitutes advantage for plant-growth. Besides, induce activating hormone-mediated (salicylic jasmonic acid, strigolactones among others) plant-defence mechanisms. Additionally, alteration transport defence components through plant synthesis secondary metabolites enzymes contribute enhancing defences. Therefore, use mentioned BCAs promising durable strategy in agriculture

Язык: Английский

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Plant Growth Stimulation by Microbial Consortia

Agronomy, Год журнала: 2021, Номер 11(2), С. 219 - 219

Опубликована: Янв. 24, 2021

Plant-associated microorganisms play an important role in agricultural production. Although various studies have shown that single can exert beneficial effects on plants, it is increasingly evident when a microbial consortium—two or more interacting microorganisms—is involved, additive synergistic results be expected. This occurs, part, due to the fact multiple species perform variety of tasks ecosystem like rhizosphere. Therefore, mechanisms plant growth stimulation (i.e., enhanced nutrient availability, phytohormone modulation, biocontrol, biotic and abiotic stress tolerance) exerted by different players within rhizosphere, such as plant-growth-promoting bacteria (PGPB) fungi (such Trichoderma Mycorrhizae), are reviewed. In addition, their interaction activity highlighted they act part consortium, mainly mixtures PGPB, PGPB–Mycorrhizae, PGPB–Trichoderma, under normal diverse conditions. Finally, we propose expansion use consortia, well increase research facilitate best most consistent field.

Язык: Английский

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Unraveling Arbuscular Mycorrhiza-Induced Changes in Plant Primary and Secondary Metabolome

Metabolites, Год журнала: 2020, Номер 10(8), С. 335 - 335

Опубликована: Авг. 18, 2020

Arbuscular mycorrhizal fungi (AMF) is among the most ubiquitous plant mutualists that enhance growth and yield by facilitating uptake of phosphorus water. The countless interactions occur in rhizosphere between plants its AMF symbionts are mediated through fungal metabolites ensure partner recognition, colonization, establishment symbiotic association. colonization reprogram metabolic pathways plants, resulting changes primary secondary metabolites, which focus this review. During initial plant–AMF interaction facilitated regulation signaling carotenoid pathways. After establishment, association influences metabolism plant, thus sharing photosynthates with AMF. carbon supply to leads transport a significant amount sugars roots, also alters tricarboxylic acid cycle. Apart from nutrient exchange, imparts abiotic stress tolerance host increasing abundance several metabolites. Although initially suppresses defense response host, it later primes for better against biotic stresses reprogramming biosynthesis Additionally, influence on translates enhanced phytochemical content upregulation phenylpropanoid pathway, improves quality products. These phytometabolome induced depends identity both species, could contribute differential outcome A understanding landscape shaped would enable us harness performance, particularly under non-optimal growing conditions.

Язык: Английский

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Arbuscular mycorrhizal fungi and its major role in plant growth, zinc nutrition, phosphorous regulation and phytoremediation

Symbiosis, Год журнала: 2021, Номер 84(1), С. 19 - 37

Опубликована: Апрель 12, 2021

Язык: Английский

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Role of Arbuscular Mycorrhizal Fungi in Regulating Growth, Enhancing Productivity, and Potentially Influencing Ecosystems under Abiotic and Biotic Stresses

Plants, Год журнала: 2023, Номер 12(17), С. 3102 - 3102

Опубликована: Авг. 29, 2023

Arbuscular mycorrhizal fungi (AMF) form symbiotic relationships with the roots of nearly all land-dwelling plants, increasing growth and productivity, especially during abiotic stress. AMF improves plant development by improving nutrient acquisition, such as phosphorus, water, mineral uptake. tolerance resilience to stressors drought, salt, heavy metal toxicity. These benefits come from arbuscular interface, which lets fungal partners exchange nutrients, signalling molecules, protective chemical compounds. Plants' antioxidant defence systems, osmotic adjustment, hormone regulation are also affected infestation. responses promote performance, photosynthetic efficiency, biomass production in stress conditions. As a result its positive effects on soil structure, cycling, carbon sequestration, contributes maintenance resilient ecosystems. The AMFs ecological stability species- environment-specific. AMF's growth-regulating, productivity-enhancing role alleviation under is reviewed. More research needed understand molecular mechanisms that drive AMF-plant interactions their stresses. triggers plants' morphological, physiological, Water development, improved symbiosis. In colonization modulates defense mechanisms, hormonal regulation. circumstances. AMF-mediated enhanced essential oils (EOs), superoxide dismutase (SOD), peroxidase (POD), ascorbate (APX), hydrogen peroxide (H2O2), malondialdehyde (MDA), phosphorus (P). Understanding how increases adaptation reduces will help sustain agriculture, ecosystem management, climate change mitigation. have gained prominence agriculture due multifaceted roles promoting health productivity. This review delves into influences absorption, challenging environmental We further explore extent bolsters

Язык: Английский

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Routes to roots: direct evidence of water transport by arbuscular mycorrhizal fungi to host plants

New Phytologist, Год журнала: 2022, Номер 236(1), С. 210 - 221

Опубликована: Май 28, 2022

Summary Arbuscular mycorrhizal fungi (AMF) can help mitigate plant responses to water stress, but it is unclear whether AMF do so by indirect mechanisms, direct transport roots, or a combination of the two. Here, we investigated if and how Rhizophagus intraradices transported host Avena barbata , wild oat. We used two‐compartment microcosms, isotopically labeled water, fluorescent dye directly track quantify across an air gap plants. Plants grown with that had access physically separated compartment containing 18 O‐labeled transpired almost twice as much plants excluded from compartment. Using isotopic mixing model, estimated accounted for 34.6% In addition, indicated hyphae were able some via extracytoplasmic pathway. Our study provides evidence act extensions root system along soil–plant–air continuum movement, transpiration driving flow outside hyphal cell membrane.

Язык: Английский

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The Role of Plant-Associated Bacteria, Fungi, and Viruses in Drought Stress Mitigation

Frontiers in Microbiology, Год журнала: 2021, Номер 12

Опубликована: Окт. 25, 2021

Drought stress is an alarming constraint to plant growth, development, and productivity worldwide. However, plant-associated bacteria, fungi, viruses can enhance resistance cope with the negative impacts of drought through induction various mechanisms, which involve biochemical physiological changes. These mechanisms include osmotic adjustment, antioxidant enzyme enhancement, modification in phytohormonal levels, biofilm production, increased water nutrient uptake as well gas exchange use efficiency. Production microbial volatile organic compounds (mVOCs) stress-responsive genes by microbes also play a crucial role acquisition tolerance. This review offers unique exploration microorganisms—plant growth promoting rhizobacteria mycorrhizae, viruses, their interactions—in microbiome (or phytobiome) whole modes action that mitigate stress.

Язык: Английский

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Seed microbiota revealed by a large‐scale meta‐analysis including 50 plant species

New Phytologist, Год журнала: 2022, Номер 234(4), С. 1448 - 1463

Опубликована: Фев. 17, 2022

Seed microbiota constitutes a primary inoculum for plants that is gaining attention owing to its role plant health and productivity. Here, we performed meta-analysis on 63 seed studies covering 50 species synthesize knowledge the diversity of this habitat. are diverse extremely variable, with taxa richness varying from one thousands taxa. Hence, presents variable (i.e. flexible) microbial fraction but also identified stable core) across samples. Around 30 bacterial fungal present in most samples all over world. Core taxa, such as Pantoea agglomerans, Pseudomonas viridiflava, P. fluorescens, Cladosporium perangustum Alternaria sp., dominant The characterization core flexible provided here will help uncover roles design effective microbiome engineering.

Язык: Английский

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New approaches to improve crop tolerance to biotic and abiotic stresses

Physiologia Plantarum, Год журнала: 2021, Номер 174(1)

Опубликована: Сен. 4, 2021

During the last years, a great effort has been dedicated at development and employment of diverse approaches for achieving more stress-tolerant climate-flexible crops sustainable yield increases to meet food energy demands future. The ongoing climate change is in fact leading frequent extreme events with negative impact on production, such as increased temperatures, drought, soil salinization well invasive arthropod pests diseases. In this review, "green strategies" (e.g., chemical priming, root-associated microorganisms), advanced technologies genome editing, high-throughput phenotyping) are described basis most recent research evidence. Particularly, attention focused potential use context climate-smart agriculture (the so called "next generation") improve plant tolerance resilience abiotic biotic stresses. addition, gap between results obtained controlled experiments those from application these real field conditions (lab step) also discussed.

Язык: Английский

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