Biostimulants in Plant Science: A Global Perspective

Frontiers in Plant Science, Год журнала: 2017, Номер 7

Опубликована: Янв. 26, 2017

This review presents a comprehensive and systematic study of the field plant biostimulants considers fundamental innovative principles underlying this technology. The elucidation biological basis biostimulant function is prerequisite for development science-based industry sound regulations governing these compounds. task defining as class compounds, however, made more complex by diverse sources present in market, which include bacteria, fungi, seaweeds, higher plants, animals humate-containing raw materials, wide diversity industrial processes utilized their preparation. To distinguish from existing legislative product categories we propose following definition "a formulated origin that improves productivity consequence novel or emergent properties constituents, not sole presence known essential nutrients, growth regulators, protective compounds." provided here important it emphasizes principle can be positively modulated through application molecules, mixtures an explicit mode action has been defined. Given difficulty determining "mode action" biostimulant, recognizing need market to attain legitimacy, suggest focus research validation should upon proof efficacy safety determination broad mechanism action, without requirement specific action. While there clear commercial imperative rationalize discrete products, also compelling case of, experimentation with expectation may lead identification molecules phenomenon, pathways processes, would have discovered if category did exist, was considered legitimate.

Язык: Английский

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Revitalization of plant growth promoting rhizobacteria for sustainable development in agriculture

Microbiological Research, Год журнала: 2017, Номер 206, С. 131 - 140

Опубликована: Окт. 17, 2017

Язык: Английский

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Plant Growth Promoting Rhizobacteria (PGPR) as Green Bioinoculants: Recent Developments, Constraints, and Prospects

Sustainability, Год журнала: 2021, Номер 13(3), С. 1140 - 1140

Опубликована: Янв. 22, 2021

The quest for enhancing agricultural yields due to increased pressure on food production has inevitably led the indiscriminate use of chemical fertilizers and other agrochemicals. Biofertilizers are emerging as a suitable alternative counteract adverse environmental impacts exerted by synthetic facilitate overall growth yield crops in an eco-friendly manner. They contain living or dormant microbes, which applied soil used treating crop seeds. One foremost candidates this respect is rhizobacteria. Plant promoting rhizobacteria (PGPR) important cluster beneficial, root-colonizing bacteria thriving plant rhizosphere bulk soil. exhibit synergistic antagonistic interactions with microbiota engage array activities ecological significance. promote facilitating biotic abiotic stress tolerance support nutrition host plants. Due their active endorsing activities, PGPRs considered hazardous fertilizers. biofertilizers biological approach toward sustainable intensification agriculture. However, application increasing several pros cons. Application potential that perform well laboratory greenhouse conditions often fails deliver expected effects development field settings. Here we review different types PGPR-based biofertilizers, discuss challenges faced widespread adoption deliberate prospects using

Язык: Английский

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Plant Growth Promoting Rhizobacteria (PGPR): Current and Future Prospects for Development of Sustainable Agriculture

Journal of Microbial & Biochemical Technology, Год журнала: 2015, Номер 07(02)

Опубликована: Янв. 1, 2015

Soil is dynamic living matrix and it not only a critical resource in agricultural food security but also towards maintenance of all life process.Pathogenic microorganisms affecting plant health are major chronic threat to sustainable agriculture ecosystem stability worldwide.The chemical fertilizers used the increase yields, kill pathogens, pests, weeds, have big harmful impact on ecosystem.Because current public concerns about side effects agrochemicals, there an increasing interest improving understanding cooperative activities among plants rhizosphere microbial populations.So, urgent need biological agents accepted use growth promoting Rhizobacteria (PGPR) better alternative solve this problem.They play important role soil fertility, promotion, suppression phytopathogens for development ecofriendly agriculture.This review provides environment friendly approach crop production health, commercialization by using rhizobacteria with global applicability.

Язык: Английский

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Biofertilizers: a potential approach for sustainable agriculture development

Environmental Science and Pollution Research, Год журнала: 2016, Номер 24(4), С. 3315 - 3335

Опубликована: Ноя. 25, 2016

Язык: Английский

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Plant Growth Promoting and Biocontrol Activity of Streptomyces spp. as Endophytes

International Journal of Molecular Sciences, Год журнала: 2018, Номер 19(4), С. 952 - 952

Опубликована: Март 22, 2018

There has been many recent studies on the use of microbial antagonists to control diseases incited by soilborne and airborne plant pathogenic bacteria fungi, in an attempt replace existing methods chemical avoid extensive fungicides, which often lead resistance pathogens. In agriculture, growth-promoting biocontrol microorganisms have emerged as safe alternatives pesticides. Streptomyces spp. their metabolites may great potential excellent agents for controlling various fungal bacterial phytopathogens. Streptomycetes belong rhizosoil communities are efficient colonizers tissues, from roots aerial parts. They active producers antibiotics volatile organic compounds, both soil planta, this feature is helpful identifying pathogens can be used several cropping systems agents. Additionally, ability promote growth demonstrated a number crops, thus inspiring wide application streptomycetes biofertilizers increase productivity. The present review highlights spp.-mediated functional traits, such enhancement

Язык: Английский

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Beneficial Microorganisms for Corals (BMC): Proposed Mechanisms for Coral Health and Resilience

Frontiers in Microbiology, Год журнала: 2017, Номер 8

Опубликована: Март 7, 2017

The symbiotic association between the coral animal and its endosymbiotic dinoflagellate partner Symbiodinium is central to success of corals. However, an array other microorganisms associated with (i.e., Bacteria, Archaea, Fungi viruses) have a complex intricate role in maintaining homeostasis corals Symbiodinium. Corals are sensitive shifts surrounding environmental conditions. One most widely reported responses stressful conditions bleaching. During this event, expel cells from their gastrodermal tissues upon experiencing extended seawater temperatures above thermal threshold. An stressors can also destabilize microbiome, resulting compromised health host, which may include disease mortality worst scenario. exact mechanisms by microbiome supports increases resilience poorly understood. Earlier studies microbiology proposed probiotic hypothesis, wherein dynamic relationship exists microorganisms, selecting for holobiont that best suited prevailing Here, we discuss microbial-host relationships within holobiont, along potential roles health. We propose term BMC (Beneficial Microorganisms Corals) define (specific) symbionts promote This concept analogous Plant Growth Promoting Rhizosphere (PGPR), has been explored manipulated agricultural industry inhabit rhizosphere directly or indirectly plant growth development through production regulatory signals, antibiotics nutrients. Additionally, effects on corals, suggesting strategies use knowledge manipulate reversing dysbiosis restore protect reefs. developing using consortia as "probiotics" improve resistance after bleaching events and/or such human-assisted acclimation/adaption shifting

Язык: Английский

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Sustainability of sugarcane production in Brazil. A review

Agronomy for Sustainable Development, Год журнала: 2018, Номер 38(2)

Опубликована: Фев. 27, 2018

Язык: Английский

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Functional Soil Microbiome: Belowground Solutions to an Aboveground Problem

PLANT PHYSIOLOGY, Год журнала: 2014, Номер 166(2), С. 689 - 700

Опубликована: Июль 24, 2014

Abstract There is considerable evidence in the literature that beneficial rhizospheric microbes can alter plant morphology, enhance growth, and increase mineral content. Of late, there a surge to understand impact of microbiome on health. Recent research shows utilization novel sequencing techniques identify model systems such as Arabidopsis (Arabidopsis thaliana) maize (Zea mays). However, it not known how community identified may play role improve health fitness. are very few detailed studies with isolated showing importance functional fitness disease protection. Some recent work cultivated rice (Oryza sativa) wide diversity bacterial species associated roots field-grown plants. biological significance potential effects host plants completely unknown. Work performed strains showed various genetic pathways involved recognition host-specific factors roles host-microbe interactions. The composition dynamic controlled by multiple factors. In case rhizosphere, temperature, pH, presence chemical signals from bacteria, plants, nematodes all shape environment influence which organisms will flourish. This provides basis for their microbiomes selectively associate one another. Update addresses phenotypes provide sustainable effective strategy crop yield food security.

Язык: Английский

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Improving Crop Yield and Nutrient Use Efficiency via Biofertilization—A Global Meta-analysis

Frontiers in Plant Science, Год журнала: 2018, Номер 8

Опубликована: Янв. 12, 2018

The application of microbial inoculants (biofertilizers) is a promising technology for future sustainable farming systems in view rapidly decreasing phosphorus stocks and the need to more efficiently use available nitrogen (N). Various taxa are currently used as biofertilizers, based on their capacity access nutrients from fertilizers soil stocks, fix atmospheric nitrogen, improve water uptake or act biocontrol agents. Despite existence considerable knowledge effects specific comprehensive quantitative assessment performance biofertilizers with different traits such solubilization N fixation applied various crops at global scale missing. We conducted meta-analysis quantify benefits terms yield increase, efficiency, 171 peer reviewed publications that met eligibility criteria. Major findings are: (i) superiority biofertilizer dry climates over other climatic regions (yield response: climate +20.0 ± 1.7%, tropical +14.9 1.2%, oceanic +10.0 3.7%, continental +8.5 2.4%); (ii) meta-regression analyses revealed response due was generally small low P levels; efficacy increased along higher levels order arbuscular mycorrhizal fungi (AMF), solubilizers, fixers; (iii) meta-regressions showed success inoculation AMF greater organic matter content neutral pH. Our analysis provides basis guidance proper choice biofertilizers.

Язык: Английский

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