Endophytes in Agriculture: Potential to Improve Yields and Tolerances of Agricultural Crops

Microorganisms, Journal Year: 2023, Volume and Issue: 11(5), P. 1276 - 1276

Published: May 12, 2023

Endophytic fungi and bacteria live asymptomatically within plant tissues. In recent decades, research on endophytes has revealed that their significant role in promoting plants as been shown to enhance nutrient uptake, stress tolerance, disease resistance the host plants, resulting improved crop yields. Evidence shows can provide tolerances salinity, moisture, drought conditions, highlighting capacity farm them marginal land with use of endophyte-based strategies. Furthermore, offer a sustainable alternative traditional agricultural practices, reducing need for synthetic fertilizers pesticides, turn risks associated chemical treatments. this review, we summarise current knowledge agriculture, potential solution improving productivity general health. This review outlines key nutrient, environmental, biotic stressors, providing examples mitigating effects stress. We also discuss challenges agriculture further fully realise potential.

Language: Английский

---

Biocontrol effects of chemical molecules derived from Beauveria bassiana against larvae of Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae)

Frontiers in Microbiology, Journal Year: 2024, Volume and Issue: 15

Published: Feb. 12, 2024

In this study, we conducted tests on the isolation, identification, characterization, and extraction of chemical molecules from Beauveria bassiana against Tuta absoluta larvae. The enzyme responses T. to crude extract were examined 24 h after treatment, number dead larvae was calculated 48 treatment. Molecular docking studies assess interaction important with acetylcholinesterase enzyme. larvicidal activity chemicals fungi high LC 50 90 values 25.937 33.559 μg/mL, respectively. For a period h, 52.254 60.450 levels acetylcholinesterase, α-carboxylesterase, β-carboxylesterase enzymes lower in treatment group compared control group. GC-MS test revealed that consisted mainly 9,10-octadecadienoic acid, which primary compound. Docking results indicated acid showed strong (AChE). Our findings suggest molecule derived entomopathogenic fungus B. is more toxic We plan conduct its effectiveness semi-field conditions evaluate stability field conditions. believe could be used near future without causing environmental pollution.

Language: Английский

---

Bioassays of Beauveria bassiana Isolates against the Fall Armyworm, Spodoptera frugiperda

Journal of Fungi, Journal Year: 2022, Volume and Issue: 8(7), P. 717 - 717

Published: July 8, 2022

The control of Spodoptera frugiperda, the key invasive pest maize, is a serious concern due to its biology and current global restriction on applying synthetic pesticides. Entomopathogenic fungi are considered be potential biological strategy. pathogenicity 12 isolates Beauveria bassiana in immature stages feeding efficacy S. frugiperda were evaluated. B. QB-3.45, QB-3.46 QB-3.428 caused highest egg mortality rates 87.3, 82.7 79.3%, respectively, when applied at concentration 1 × 108 conidia/mL measured 7 days post-treatment. Neonate 45.6 53.6% observed with same isolates. significant cumulative ranging from 71.3 93.3% 14 post-treatment reduced larval 69.4 77.8% 48 h This study supports using effective as agent against frugiperda. eggs neonatal larvae reduction second instar that treated application entomopathogenic biocontrol for population.

Language: Английский

---

Entomopathogen-based biopesticides: insights into unraveling their potential in insect pest management

Frontiers in Microbiology, Journal Year: 2023, Volume and Issue: 14

Published: July 26, 2023

Global food security is a critical challenge to fulfill the demands of an exponentially growing population. To date, growers rely on chemicals; broad-spectrum application synthetic molecules leads environmental contamination, resistance development, residual toxicity, pest resurgence, and detrimental effect human health cattle. Crop production needs be improved considering concerns ensure security. Furthermore, economically important crops are prone attack by insect pests, causing considerable yield losses. Microbes eco-friendly, versatile alternative, potential candidate for combatting destructive pests below economic injury level improving plant's productivity. Several microbial pathogens, including parasites, predators, parasitoids, pollinators, many beneficial microorganisms, possess toxic properties against target organisms but do not cause harm non-target organisms. Entomopathogens (ENMs) have great suppression due their remarkable properties. Bacteria host-specific, fungi broader host range can significantly affected both soil-dwelling terrestrial pests. Virulent pathogens mortality in known as ENMs penetrate through natural openings, ingestions, integuments possible The objective using sustain productivity, improve health, reduce pesticides, conserve resources. Moreover, research ongoing discover other aspects, especially exploring ENMs. Therefore, there need identification, isolation, bioformulation overcome existing issues. This study mainly focused status bio-formulations, pathogenicity, mode action, different types formulations sustainable management.

Language: Английский

---

Endophytic Beauveria bassiana promotes plant biomass growth and suppresses pathogen damage by directional recruitment

Frontiers in Microbiology, Journal Year: 2023, Volume and Issue: 14

Published: Aug. 16, 2023

Introduction Entomopathogenic fungi (EPF) can colonize and establish symbiotic relationships with plants as endophytes. Recently, EPF have been reported to suppress plant pathogens induce resistance diseases. However, the potential mechanisms via which endophytes control major diseases in situ remain largely unknown. Methods Pot field experiments were conducted investigate an EPF, Beauveria bassiana , colonizes tomato, under Botrytis cinerea infection stress. B. blastospores inoculated into tomato by root irrigation. Tomato gray mold caused was evaluated artificial inoculation, colonization rhizosphere soil stress colony counting quantitative PCR. Furthermore, expression levels of three disease resistance-related genes ( OXO CHI atpA ) leaves determined explore effect on performance pot experiments. Results could improve . The incidence rate, lesion diameter, index decreased both following colonization. more likely accumulate pathogen infected leaves, while decreasing soil, induced genes, up-regulated leaves. Discussion results indicated that “recruit” from diseased directional effects, then enhanced growth against pathogens, consequently inhibiting multiplication plants. Our findings provide novel insights enhance our understanding roles during challenge.

Language: Английский

---

The fungal endophyte Metarhizium anisopliae (MetA1) coordinates salt tolerance mechanisms of rice to enhance growth and yield

Plant Physiology and Biochemistry, Journal Year: 2024, Volume and Issue: 207, P. 108328 - 108328

Published: Jan. 3, 2024

Language: Английский

---

Harnessing Fungal Bioagents Rich in Volatile Metabolites for Sustainable Crop Protection: A Critical Review

Journal of Basic Microbiology, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 25, 2025

ABSTRACT Pests and diseases have a significant impact on crop health yields, posing serious threat to global agriculture. Effective management strategies, such as integrated pest (IPM), including rotation, use of synthetic pesticides, biological control, resistant/tolerant varieties, are essential mitigate these risks ensure sustainable agricultural practices. Fungal bioagents play an important role in managing phytopathogens insect pests by acting agents. They promote healthy plant growth enhancing the uptake nutrients combating systemic resistance plants. Furthermore, fungal environmentally friendly, reducing application fungicides insecticides minimizing their negative crops environment. Their IPM promotes agriculture ensures high‐quality while maintaining soil microbial biodiversity. These rich sources volatile organic compounds (VOCs), which communication during interaction with phytopathogens. In management, VOC production beneficial fungi is accountable for efficacy against pathogens. Thus, this review discusses producing VOCs, extraction methods VOC, VOC‐producing disease knowledge gaps, future research areas.

Language: Английский

---

Effectiveness of front line and emerging fungal disease prevention and control interventions and opportunities to address appropriate eco-sustainable solutions

The Science of The Total Environment, Journal Year: 2022, Volume and Issue: 851, P. 158284 - 158284

Published: Aug. 25, 2022

Language: Английский

---

Enhanced toxicity of entomopathogenic fungi Beauveria bassiana with bacteria expressing immune suppressive dsRNA in a leaf beetle

Pesticide Biochemistry and Physiology, Journal Year: 2023, Volume and Issue: 193, P. 105431 - 105431

Published: April 20, 2023

Language: Английский

---

An entomopathogenic fungus exploits its host humoral antibacterial immunity to minimize bacterial competition in the hemolymph

Microbiome, Journal Year: 2023, Volume and Issue: 11(1)

Published: May 20, 2023

Abstract Background The insect hemolymph (blood-equivalent fluid), composed of a large number hemocytes (blood cells) and variety soluble immune effectors, is hostile for pathogens including fungi. In order to survive in the hemocoel (body cavity), entomopathogenic fungus (EPF) has evolved two classical coping strategies, namely evasion suppression host reactions. However, it remains unclear whether EPF other ways with immunity. Results this study, we demonstrated that Metarhizium rileyi (an EPF) infection by injection blastospores into enhanced plasma antibacterial activity cotton bollworm ( Helicoverpa armigera ), which was partially due expression antimicrobial peptides (AMPs). early stage M. induced translocation gut bacteria hemocoel, where they were subsequently cleared activity. Further, showed AMP attributable but not invasive (opportunistic bacteria). Elevated ecdysone (major steroid hormone insects) levels at 48 h post- might contribute AMPs. fungus-elicited AMPs, such as cecropin 3 or lebocin, exhibited potent inhibitory against opportunistic hyphal bodies. addition, competed bodies amino acid nutrients. Conclusions bacteria, then fungi activated exploited its humoral immunity eliminate preventing them from competing nutrients hemolymph. Unlike utilizes evade suppress immunity, our findings reveal novel strategy interaction between

Language: Английский

---