scholarly journals The Role of Mites in Bark and Ambrosia Beetle-Fungal Interactions

10.5772/67106 ◽  
2017 ◽  
Author(s):  
Sneha Vissa ◽  
Richard William Hofstetter
Keyword(s):  
Ambrosia Beetle ◽  
Fungal Interactions

scholarly journals Editorial: The Role of the Fungal Cell Wall in Host-Fungal Interactions

2020 ◽  
Vol 10 ◽  
Author(s):  
Laura Alcazar-Fuoli ◽  
Jagadeesh Bayry ◽  
Vishukumar Aimanianda
Keyword(s):  
Cell Wall ◽  
Fungal Cell Wall ◽  
Fungal Cell ◽  
Fungal Interactions

scholarly journals Microbiome Associated with the Mycangia of Female and Male Adults of the Ambrosia Beetle Platypus cylindrus Fab. (Coleoptera: Curculionidae)

Insects ◽  
2021 ◽  
Vol 12 (10) ◽  
pp. 881
Author(s):  
Stefano Nones ◽  
Fernanda Simões ◽  
Cândida Sofia Trindade ◽  
José Matos ◽  
Edmundo Sousa
Keyword(s):  
Bacterial Community ◽  
Cork Oak ◽  
Ambrosia Beetle ◽  
Bacterial Composition ◽  
Histological Techniques ◽  
X Ray ◽  
Functional Behavior ◽  
Computed Microtomography ◽  
X Ray Computed

The ambrosia beetle Platypus cylindrus Fab. (Coleoptera: Curculionidae) is a major cork oak pest in Portugal. Female and male beetles have different roles in host tree colonization and are both equipped with prothoracic mycangia for fungal transportation. Despite a known beneficial role of bacteria in ambrosia beetles, information on bacterial composition associated with prothoracic mycangia structures is scarce. Bacterial community from mycangia of P. cylindrus male and female beetles collected from cork oak galleries was investigated by means of 16S metagenomics. Mycangia anatomical structure was also explored with histological techniques and X-ray computed microtomography to highlight evidence supporting biological sexual dimorphism. A bacterial community with highly diverse bacterial taxa with low abundances at the genus level was revealed. Lactobacillales, Leptotrichia, Neisseria, Rothia, and Sphingomonadaceae were significantly more abundant in males, while Acinetobacter, Chitinophagaceae, Enterobacteriaceae, Erwiniaceae, Microbacteriaceae, and Pseudoclavibacter were more abundant in females. Additionally, a core bacteriome of five genera was shared by both sexes. Histological examination revealed visible connections linking external and internal tissues in females, but none in males. Overall, these results provide the first insights into sexual differentiation for bacteria in a Platypodinae beetle species, identifying key patterns of bacteria distribution in the context of beetle ecology and functional behavior.

The role of nutrient balance in shaping plant root-fungal interactions: facts and speculation

2019 ◽  
Vol 49 ◽  
pp. 90-96 ◽  
Author(s):  
Izabela Fabiańska ◽  
Esperanza Sosa-Lopez ◽  
Marcel Bucher
Keyword(s):  
Plant Root ◽  
Nutrient Balance ◽  
Fungal Interactions

scholarly journals Succession and potential role of bacterial communities during Pleurotus ostreatus production

2021 ◽  
Author(s):  
Renáta Bánfi ◽  
Zsuzsanna Pohner ◽  
Attila Szabó ◽  
Gábor Herczeg ◽  
Gábor M Kovács ◽  
...  
Keyword(s):  
Bacterial Community ◽  
Pleurotus Ostreatus ◽  
Sharp Decrease ◽  
Amplicon Sequencing ◽  
White Rot ◽  
White Rot Fungus ◽  
Rrna Gene ◽  
Fungal Interactions ◽  
Body Production

ABSTRACT There is an increasing interest in studying bacterial-fungal interactions (BFIs), also the interactions of Pleurotus ostreatus, a model white-rot fungus and important cultivated mushroom. In Europe, P. ostreatus is produced on a wheat straw-based substrate with a characteristic bacterial community, where P. ostreatus is exposed to the microbiome during substrate colonisation. This study investigated how the bacterial community structure was affected by the introduction of P. ostreatus into the mature substrate. Based on the results obtained, the effect of the presence and absence of this microbiome on P. ostreatus production in an experimental cultivation setup was determined. 16S rRNA gene-based terminal restriction fragment length polymorphism (T-RFLP) and amplicon sequencing revealed a definite succession of the microbiome during substrate colonisation and fruiting body production: a sharp decrease in relative abundance of Thermus spp. and Actinobacteria, and the increasing dominance of Bacillales and Halomonas spp. The introduced experimental cultivation setup proved the protective role of the microbial community against competing fungi without affecting P. ostreatus growth. We could also demonstrate that this effect could be attributed to both living microbes and their secreted metabolites. These findings highlight the importance of bacterial-fungal interactions during mushroom production.

Challenges and progress towards understanding the role of effectors in plant–fungal interactions

2012 ◽  
Vol 15 (4) ◽  
pp. 477-482 ◽  
Author(s):  
Maryam Rafiqi ◽  
Jeffrey G Ellis ◽  
Victoria A Ludowici ◽  
Adrienne R Hardham ◽  
Peter N Dodds
Keyword(s):  
Fungal Interactions

Flüchtige Inhaltsstoffe von Ambrosiakäfern (Coleoptera: Scolytidae), II / Volatile Substances from Ambrosia Beetles, II

1974 ◽  
Vol 29 (5-6) ◽  
pp. 246-247 ◽  
Author(s):  
W. Francke ◽  
K. Heyns
Keyword(s):  
Fatty Acid ◽  
Bark Beetles ◽  
Chain Fatty Acid ◽  
Fatty Acid Esters ◽  
Ambrosia Beetle ◽  
Long Chain Fatty Acid ◽  
Males And Females ◽  
Acid Esters ◽  
Long Chain

Methylmyristate and ethylpalmitate were identified from males and females of the ambrosia beetle Xyloterus domesticus L. The role of these compounds is discussed in connection with a brief survey concerning the occurrence of long-chain fatty-acid esters in other insects and in the phloem of softwood as attractants for bark beetles.

scholarly journals Steryl Glycosides in Fungal Pathogenesis: An Understudied Immunomodulatory Adjuvant

2020 ◽  
Vol 6 (1) ◽  
pp. 25 ◽  
Author(s):  
Tyler G. Normile ◽  
Kyle McEvoy ◽  
Maurizio Del Poeta
Keyword(s):  
Immune Response ◽  
Fungal Infections ◽  
Treatment Options ◽  
Host Immune Response ◽  
Novel Treatment ◽  
Wide Range ◽  
Efficacious Vaccine ◽  
Lipid Compounds ◽  
Fungal Interactions

Invasive fungal infections pose an increasing threat to human hosts, especially in immunocompromised individuals. In response to the increasing morbidity and mortality of fungal infections, numerous groups have shown great strides in uncovering novel treatment options and potential efficacious vaccine candidates for this increasing threat due to the increase in current antifungal resistance. Steryl glycosides are lipid compounds produced by a wide range of organisms, and are largely understudied in the field of pathogenicity, especially to fungal infections. Published works over the years have shown these compounds positively modulating the host immune response. Recent advances, most notably from our lab, have strongly indicated that steryl glycosides have high efficacy in protecting the host against lethal Cryptococcal infection through acting as an immunoadjuvant. This review will summarize the keystone studies on the role of steryl glycosides in the host immune response, as well as elucidate the remaining unknown characteristics and future perspectives of these compounds for the host–fungal interactions.

scholarly journals Nitric oxide in plant–fungal interactions

2019 ◽  
Vol 70 (17) ◽  
pp. 4489-4503 ◽  
Author(s):  
Ainhoa Martínez-Medina ◽  
Leyre Pescador ◽  
Laura C Terrón-Camero ◽  
María J Pozo ◽  
María C Romero-Puertas
Keyword(s):  
Nitric Oxide ◽  
Fungal Pathogens ◽  
Plant Defence ◽  
Antimicrobial Properties ◽  
Mycorrhizal Symbiosis ◽  
Plant Interactions ◽  
Related Gene ◽  
Mutualistic Fungi ◽  
Fungal Interactions

Abstract Whilst many interactions with fungi are detrimental for plants, others are beneficial and result in improved growth and stress tolerance. Thus, plants have evolved sophisticated mechanisms to restrict pathogenic interactions while promoting mutualistic relationships. Numerous studies have demonstrated the importance of nitric oxide (NO) in the regulation of plant defence against fungal pathogens. NO triggers a reprograming of defence-related gene expression, the production of secondary metabolites with antimicrobial properties, and the hypersensitive response. More recent studies have shown a regulatory role of NO during the establishment of plant–fungal mutualistic associations from the early stages of the interaction. Indeed, NO has been recently shown to be produced by the plant after the recognition of root fungal symbionts, and to be required for the optimal control of mycorrhizal symbiosis. Although studies dealing with the function of NO in plant–fungal mutualistic associations are still scarce, experimental data indicate that different regulation patterns and functions for NO exist between plant interactions with pathogenic and mutualistic fungi. Here, we review recent progress in determining the functions of NO in plant–fungal interactions, and try to identify common and differential patterns related to pathogenic and mutualistic associations, and their impacts on plant health.

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