Insecticidal and antioxidant potential of volatile compounds and nanoparticles from Tulbaghia violacea Harv. inoculated with endophytic fungus Beauveria bassiana (Bals.-Criv.) Vuill DOI Creative Commons

Bandile Ludwaba,

Muhali Olaide Jimoh, Charles Petrus Laubscher

et al.

South African Journal of Botany, Journal Year: 2024, Volume and Issue: 165, P. 246 - 256

Published: Jan. 3, 2024

This study aimed to investigate the effect of entomopathogenic fungus Beauveria bassiana on growth and ability Tulbaghia violacea synthesise nanoparticles volatile compounds. was inoculated by drenching with different concentrations B. conidial (0 mL−1, 1 × 106 107, 108 conidia mL−1) colonization plant tissue in fungal treatments evaluated. A UV–VIS spectrometer (SPECTROstar nano) used determine presence while constituents plants were analysed chromatography-mass spectrometry. Polyphenols, alkaloids, flavonoids antioxidant contents determined using referenced methods. At least 57 % successfully colonized at highest concentration (1 mL−1). The results showed that treating T. had no significant (P>0.05) parameters (height, number leaves, aerial part fresh weight, dry root weight) after four weeks post-treatment. aqueous extracts from both control bassiana-treated synthesized gold nanoparticles. Furthermore, equally toxic mealybug induced high mortality. Gas chromatography–mass spectrometry (GC–MS) revealed compounds detected subjected inoculum did not vary significantly leaves roots. polyphenol among treatments. Similarly, activities influenced treatment However, reduced fungus-treated plants.

Language: Английский

Biocontrol efficacy of entomopathogenic fungi Beauveria bassiana conidia against agricultural insect pests DOI
Swathy Kannan,

M. Parmar,

Perumal Vivekanandhan

et al.

Environmental Quality Management, Journal Year: 2024, Volume and Issue: 34(1)

Published: Jan. 9, 2024

Abstract Insect pests are serious threats to agriculture, forestry, and human health because they damage crops trees spread diseases. Chemical insecticides control insect quickly effectively, protecting crops. Environmental concerns arise from their use. Long‐term exposure can cause pesticide‐resistant insects, requiring stronger chemicals. Beneficial insects wildlife may be harmed. Some chemical persist in the environment, causing long‐term ecological damage. The present study was isolate, identify, characterize entomopathogenic fungi soil, evaluate pathogenicity against major species, non‐target effect on soil bioindicator species. Bioassay results show that Beauveria bassiana conidia more pathogenic all three species at 10 days after treatment, 100% mortality Halyomorpha halys Tenebrio molitor within days. lethal concentration showed lower LC50 values of 9.5 × 103 conidia/mL H. , 2.6 T. 8.3×104 P. japonica B. treatment a shortened life time LT50 (6.0 days), (5.3 (6.9 days). concluded efficient pests.

Language: Английский

Citations

14
First record of Aspergillus nomiae as a broad-spectrum entomopathogenic fungus that provides resistance against phytopathogens and insect pests by colonization of plants DOI Creative Commons
Zhengkun Zhang, Yifan Tian, Li Sui

et al.

Frontiers in Microbiology, Journal Year: 2024, Volume and Issue: 14

Published: Jan. 8, 2024

is known as a pathogenic fungus that infects humans and plants but has never been reported an entomophagous (EPF) can provide other functions endotype.

Language: Английский

Citations

9
Alterations in microbial community structures and metabolic function in soil treated with biological and chemical insecticides DOI
Renwen Zheng,

Jun Peng,

Qianqian Li

et al.

Pesticide Biochemistry and Physiology, Journal Year: 2025, Volume and Issue: 208, P. 106304 - 106304

Published: Jan. 20, 2025

Language: Английский

Citations

1
Wolbachia enhances the survival of Drosophila infected with fungal pathogens DOI Creative Commons
Jessamyn I. Perlmutter,

Aylar Atadurdyyeva,

Margaret E. Schedl

et al.

BMC Biology, Journal Year: 2025, Volume and Issue: 23(1)

Published: Feb. 11, 2025

Wolbachia bacteria of arthropods are at the forefront basic and translational research on multipartite host-symbiont-pathogen interactions. These vertically transmitted microbes most widespread endosymbionts planet due to factors including host reproductive manipulation fitness benefits. Importantly, some strains can inhibit viral pathogenesis within between arthropod hosts. Mosquitoes carrying wMel strain Drosophila melanogaster have a greatly reduced capacity spread viruses like dengue Zika humans. While significant efforts focused viruses, relatively little attention has been given Wolbachia-fungal interactions despite ubiquity fungal entomopathogens in nature. Here, we demonstrate that increase longevity their hosts when challenged with spectrum yeast filamentous pathogens. We find this pattern vary based genotype, sex, species. Further, correlates higher fertility pathogen titers during initial infection, indicating benefit. Finally, RNA sequencing results show altered expression many immune stress response genes context suggesting immunity may be involved mechanism. This study demonstrates Wolbachia's protective role diverse determines phenotype is broad, but several variables influence both presence strength phenotype. It also critical step forward understanding how symbionts protect from variety

Language: Английский

Citations

1
Harnessing Fungal Bioagents Rich in Volatile Metabolites for Sustainable Crop Protection: A Critical Review DOI
Dheeraj Kumar, Somnath Roy, Azariah Babu

et al.

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

Citations

1
Entomopathogenic Fungi for Pests and Predators Control in Beekeeping DOI Creative Commons
Roberto Bava, Fabio Castagna, Cristian Piras

et al.

Veterinary Sciences, Journal Year: 2022, Volume and Issue: 9(2), P. 95 - 95

Published: Feb. 21, 2022

The emergence of resistance to chemical drugs in beekeeping is becoming a phenomenon widespread concern. One promising alternative the use chemicals entomopathogenic organisms that are environmentally friendly and capable stopping expression once it has evolved. In recent past, scientific community carried out several experiments addressing microbiological control agents. particular, experimental studies using fungi have had more success honey bee research. With their adherence properties ability digest cuticle overcome host defense mechanism, they could be suitable ingredient bioacaricides. Several been identified search for effective means pest populations. data obtained from different interesting often favorable use, but there also conflicting results. aim this review describe state art on topic under investigation.

Language: Английский

Citations

35
Delivery and effectiveness of entomopathogenic fungi for mosquito and tick control: Current knowledge and research challenges DOI
Claudia Cafarchia, Rebecca Pellegrino,

Valentina Romano

et al.

Acta Tropica, Journal Year: 2022, Volume and Issue: 234, P. 106627 - 106627

Published: July 29, 2022

Language: Английский

Citations

35
An entomopathogenic fungus exploits its host humoral antibacterial immunity to minimize bacterial competition in the hemolymph DOI Creative Commons
Jia‐Lin Wang, Jing Sun,

Ya-Jing Song

et al.

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

Citations

20
Enhanced toxicity of entomopathogenic fungi Beauveria bassiana with bacteria expressing immune suppressive dsRNA in a leaf beetle DOI

Chengjie Tu,

Yuxin Zhang, Peipei Zhu

et al.

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

Published: April 20, 2023

Language: Английский

Citations

19
Endophytic Fungi as Potential Bio-Control Agents of Soil-Borne Pathogen DOI

Murad Muhammad,

Abdul Basıt,

Kashif Ali

et al.

Deleted Journal, Journal Year: 2024, Volume and Issue: 76(3), P. 617 - 636

Published: March 11, 2024

As possible biocontrol agents against soil-borne infections, root endophytic fungi, also known as fungal endophytes, have gained attention. Recently, it has been discovered that endophytes and fungi found in plant roots are promising for diseases. These can shield plants from the harm knots rot pathogens cause. They display characteristics crucial long-term disease control agriculture, such generation of systemic resistance, production antifungal metabolites, stimulation development. This review examines different types, underlying mechanisms, relationships with pathogens. Using agricultural systems requires standardized selection, application, evaluation approaches. Fungal shown promise preventing spread diseases, reducing need chemical pesticides, increasing crop yields. other could improve pathogen management viability food production. Supporting ecologically friendly methods accelerating sustainable agriculture be accomplished use these helpful fungi. However, further study is required to explore entophytic dramatically practices provide more eco-friendly agriculture.

Language: Английский

Citations

8