Especies de xyleborus (coleoptera: curculionidae: scolytinae) asociados a huertos de aguacate en Colima, México.

Castrejón-Antonio, Jesús Enrique; Montesinos-Matías, Roberto; Acevedo-Reyes, Nallely; Tamez‐Guerra, Patricia; Ayala-Zermeño, Miguel Angel; Berlanga-Padilla, Angélica María; Arredondo-Bernal, Hugo C.

doi:10.21829/azm.2017.3311028

Cited by 22 publications

(11 citation statements)

References 5 publications

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“…; 35 ). The transmission of their symbiont fungus to other native or non-native beetle species could also contribute to the spread of the disease 24 , 25 . Using SMCE, we obtained a suitability value that incorporates the suitability prediction for each beetle, the presence of its hosts, and three forest stress-related factors reported for Mexico.…”

Section: Discussionmentioning

confidence: 99%

“…suggests that this species could expand its range much faster than X. glabratus , which is primarily restricted to species of Lauraceae. Moreover, damage could be greater if symbiont fungi are transferred to other beetle species (native or not) as the two target species colonize new regions, potentially causing faster dispersal 24 , 25 .…”

Section: Discussionmentioning

confidence: 99%

“…The value of this crop was approximately US $1.6 billion. Moreover, Mexico presents a large diversity of ambrosia beetle species both in regions where Lauraceae species are abundant as well as in avocado producing states, which could lead to the fungi rapidly spreading 24 , 25 .…”

Section: Introductionmentioning

confidence: 99%

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Potential invasion of exotic ambrosia beetles Xyleborus glabratus and Euwallacea sp. in Mexico: A major threat for native and cultivated forest ecosystems

Lira‐Noriega

Soberón

Equihua

2018

Sci Rep

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We analyze the invasive potential of two Asian ambrosia beetles, Xyleborus glabratus and Euwallacea sp., into Mexico and the southern United States. The fungal symbionts of these beetles have been responsible for damage to trees of the family Lauraceae, including Persea americana and other non-cultivated tree species on both coasts of the United States. We estimate their potential threat using ecological niche modeling and spatial multi-criteria evaluation protocols to incorporate plant and beetle suitabilities as well as forest stress factors across Mexico. Mexico contains higher climatic and habitat suitability for X. glabratus than for Euwallacea sp. Within this country, the neotropical region is most vulnerable to invasion by both of these species. We also identify a corridor of potential invasion for X. glabratus along the Gulf of Mexico coast where most Lauraceae and native Xyleborus species are present; dispersal of either X. glabratus or Euwallacea sp. into this region would likely lead to major disease spread. However, the overall potential damage that these beetles can cause may be a function of how many reproductive hosts and how many other ambrosia beetles are present, as well as of their capacity to disperse. This work can also alert relevant managers and authorities regarding this threat.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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Potential invasion of exotic ambrosia beetles Xyleborus glabratus and Euwallacea sp. in Mexico: A major threat for native and cultivated forest ecosystems

Lira‐Noriega

Soberón

Equihua

2018

Sci Rep

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“…Here we report the first fungal and bacterial metabarcoding study of the symbiont communities of galleries, gallery foundresses, and offspring of all life stages in the sugarcane shot hole borer, Xyleborus affinis Eichhoff. Despite its abundance and pest status ( 51 , 52 ), microbial symbionts of X. affinis remain poorly studied, and the main ambrosia-fungus mutualist(s) have not been determined for this species, even though several candidates like Raffaelea arxii , a Candida sp., and an Ambrosiozyma sp. have been discussed as potential mutualists ( 32 ).…”

Section: Introductionmentioning

confidence: 99%

Evidence for Succession and Putative Metabolic Roles of Fungi and Bacteria in the Farming Mutualism of the Ambrosia Beetle Xyleborus affinis

et al. 2020

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The bacterial and fungal community involved in ambrosia beetle fungiculture remains poorly studied compared to the famous fungus-farming ants and termites. Here we studied microbial community dynamics of laboratory nests, adults, and brood during the life cycle of the sugarcane shot hole borer, Xyleborus affinis. We identified a total of 40 fungal and 428 bacterial operational taxonomic units (OTUs), from which only five fungi (a Raffaelea fungus and four ascomycete yeasts) and four bacterial genera (Stenotrophomonas, Enterobacter, Burkholderia, and Ochrobactrum) can be considered the core community playing the most relevant symbiotic role. Both the fungal and bacterial populations varied significantly during the beetle’s life cycle. While the ascomycete yeasts were the main colonizers of the gallery early on, the Raffaelea and other filamentous fungi appeared after day 10, at the time when larval hatching happened. Regarding bacteria, Stenotrophomonas and Enterobacter dominated overall but decreased in foundresses and brood with age. Finally, inferred analyses of the putative metabolic capabilities of the bacterial microbiome revealed that they are involved in (i) degradation of fungal and plant polymers, (ii) fixation of atmospheric nitrogen, and (iii) essential amino acid, cofactor, and vitamin provisioning. Overall, our results suggest that yeasts and bacteria are more strongly involved in supporting the beetle-fungus farming symbiosis than previously thought. IMPORTANCE Ambrosia beetles farm their own food fungi within tunnel systems in wood and are among the three insect lineages performing agriculture (the others are fungus-farming ants and termites). In ambrosia beetles, primary ambrosia fungus cultivars have been regarded essential, whereas other microbes have been more or less ignored. Our KEGG analyses suggest so far unknown roles of yeasts and bacterial symbionts, by preparing the tunnel walls for the primary ambrosia fungi. This preparation includes enzymatic degradation of wood, essential amino acid production, and nitrogen fixation. The latter is especially exciting because if it turns out to be present in vivo in ambrosia beetles, all farming animals (including humans) are dependent on atmospheric nitrogen fertilization of their crops. As previous internal transcribed spacer (ITS) metabarcoding approaches failed on covering the primary ambrosia fungi, our 18S metabarcoding approach can also serve as a template for future studies on the ambrosia beetle-fungus symbiosis.

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“…It has been reported in the state of Colima, Mexico infesting avocado trees (Persea americana Mill.) and in mango orchards (Mangifera indica L.) among trees with regressive wilt symptoms (Sobel, Lucky & Hulcr, 2015;Castrejón-Antonio et al, 2017b.…”

Section: Introductionmentioning

confidence: 99%

Selection ofBeauveria bassiana(Hypocreales: Cordycipitaceae) strains to controlXyleborus affinis(Curculionidae: Scolytinae) females

Castrejón-Antonio

Tamez‐Guerra

Montesinos-Matías

et al. 2020

PeerJ

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Background Xyleborus affinis Eichhoff (Coleoptera: Curculionidae) is an ambrosia beetle reported to affect avocado trees (Persea americana Mill.). The use of the entomopathogenic fungus (EPF) Beauveria bassiana (Bals.-Criv.) Vuill. for ambrosia beetle control represents an alternative to insecticides. Methods This study was designed in two stages to select B. bassiana strains with potential to control X. affinis females. In the first stage, 19 B. bassiana Mexican strains from EPF collection, isolated from Coleoptera (CHE-CNRCB, http://www.gob.mx/senasica/documentos/coleccion-de-hongos-entomopatogenos), were tested. Analyses included radial growth rate, conidial yield, spore germination, and germ tube length. Results were analysed by Principal Component Analysis (PCA) to identify clusters within favourable growth phenotypes. For the second stage, 10 selected strains were re-analysed for virulence-related metabolic characteristic, including cell wall-bound cuticle-degrading enzymes–Pr1-like proteases and β-N-acetyl glucosaminidases (NAGase) chitinases, conidial hydrophobicity and monopolar germination parameters. A second PCA analysis was run for those virulence parameters analysed, and upon results strains CHE-CNRCB 44, 171, 431 and 485 were selected and tested against X. affinis females. Females were treated with a 1 × 108 conidia mL−1 suspension (recommended rate), using a Potter Tower. Results All strains showed insecticidal activity, inducing up to 58% mortality; about 30% dead beetles developed aerial mycelia (CHE-CNRCB 485) and the fastest mortality rate was t0 = 1.95 (CHE-CNRCB 44). Conclusion Since all selected strains showed virulence against X. affinis females, results indicated the possibility of selecting B. bassiana strains based on multiple metabolic attributes, as a preliminary test to perform bioassays against order-related target insects.

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Especies de xyleborus (coleoptera: curculionidae: scolytinae) asociados a huertos de aguacate en Colima, México.

Abstract: Se registra la presencia de tres especies de escarabajos ambrosiales del género Xyleborus (Curculionidae: Scolytinae) en árboles de aguacate (Persea americana) de Colima, México. Se trata de Xyleborus affinis Eichhoff, X. volvulus Fabricius, y X. spinulosus Blandford.

Cited by 22 publications

References 5 publications

Potential invasion of exotic ambrosia beetles Xyleborus glabratus and Euwallacea sp. in Mexico: A major threat for native and cultivated forest ecosystems

Potential invasion of exotic ambrosia beetles Xyleborus glabratus and Euwallacea sp. in Mexico: A major threat for native and cultivated forest ecosystems

Evidence for Succession and Putative Metabolic Roles of Fungi and Bacteria in the Farming Mutualism of the Ambrosia Beetle Xyleborus affinis

Selection ofBeauveria bassiana(Hypocreales: Cordycipitaceae) strains to controlXyleborus affinis(Curculionidae: Scolytinae) females

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