The Association Between Basidiomycete Fungi and Mealybugs Pseudococcidae Affects Coffee Plants

Some Pseudococcidae species interact with <i>Coffea arabica</i>’s roots and are associated with basidiomycete fungi. The fungal mycelium envelops the roots, which hinders their water and nutrient absorption. Combined with the feeding activity of the insects, this results in chlorosis, de...

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Main Authors: Luz Andrea Carmona-Valencia, Lucio Navarro-Escalante, Pablo Benavides, Zulma Nancy Gil Palacio
Format: Article
Language:English
Published: MDPI AG 2025-02-01
Series:Agronomy
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Online Access:https://www.mdpi.com/2073-4395/15/3/551
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author Luz Andrea Carmona-Valencia
Lucio Navarro-Escalante
Pablo Benavides
Zulma Nancy Gil Palacio
author_facet Luz Andrea Carmona-Valencia
Lucio Navarro-Escalante
Pablo Benavides
Zulma Nancy Gil Palacio
author_sort Luz Andrea Carmona-Valencia
collection DOAJ
description Some Pseudococcidae species interact with <i>Coffea arabica</i>’s roots and are associated with basidiomycete fungi. The fungal mycelium envelops the roots, which hinders their water and nutrient absorption. Combined with the feeding activity of the insects, this results in chlorosis, defoliation, and even plant death. Despite the significance of these interactions, they remain under-studied. To investigate the relationship between sporocarps found at the base of coffee trees, the cysts covering their roots, and the mealybug insects within them, samples of these three organisms—sporocarps, cysts, and mealybugs—were collected from 27 coffee plants across three farms in the departments of Norte de Santander and Quindío, Colombia. Fungi and cysts were identified by sequencing a nuclear gene region of the 28S large ribosomal subunit (28S rDNA) using the primers LSU200-F and LSU481-R. Fungal identification was further confirmed through classical taxonomy. Mealybugs were identified by sequencing a region of the mitochondrial gene Cytochrome C oxidase subunit I (COI) with CIF-CIR primers, corroborated through classical taxonomy. This study identified four fungal species associated with four species of <i>Pseudococcidae</i>. The fungus <i>Phlebopus beniensis</i> was associated with the mealybugs <i>Pseudococcus elisae</i>, <i>Dysmicoccus neobrevipes</i>, <i>D. brevipes</i>, and <i>Pseudococcus nr. sociabilis</i>. <i>Phlebopus portentosus</i> was linked to <i>D. neobrevipes</i>, while <i>Xerophorus olivascens</i> and <i>Boletinellus rompelii</i> were associated with other <i>Pseudococcidae</i> species. Additionally, the fungus <i>Pseudolaccaria pachyphylla</i> was found in coffee plants harboring mealybugs. These findings confirm the existence of specific associations between fungal species and mealybug insects that affect coffee plants.
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spelling doaj-art-bce04b1839994626bb8aaaed04286a672025-08-20T03:40:42ZengMDPI AGAgronomy2073-43952025-02-0115355110.3390/agronomy15030551The Association Between Basidiomycete Fungi and Mealybugs Pseudococcidae Affects Coffee PlantsLuz Andrea Carmona-Valencia0Lucio Navarro-Escalante1Pablo Benavides2Zulma Nancy Gil Palacio3Department of Entomology, National Coffee Research Center, Cenicafé, Manizales 170009, ColombiaDepartment of Molecular Biosciences, University of Texas at Austin, Austin, TX 78712, USADepartment of Entomology, National Coffee Research Center, Cenicafé, Manizales 170009, ColombiaDepartment of Entomology, National Coffee Research Center, Cenicafé, Manizales 170009, ColombiaSome Pseudococcidae species interact with <i>Coffea arabica</i>’s roots and are associated with basidiomycete fungi. The fungal mycelium envelops the roots, which hinders their water and nutrient absorption. Combined with the feeding activity of the insects, this results in chlorosis, defoliation, and even plant death. Despite the significance of these interactions, they remain under-studied. To investigate the relationship between sporocarps found at the base of coffee trees, the cysts covering their roots, and the mealybug insects within them, samples of these three organisms—sporocarps, cysts, and mealybugs—were collected from 27 coffee plants across three farms in the departments of Norte de Santander and Quindío, Colombia. Fungi and cysts were identified by sequencing a nuclear gene region of the 28S large ribosomal subunit (28S rDNA) using the primers LSU200-F and LSU481-R. Fungal identification was further confirmed through classical taxonomy. Mealybugs were identified by sequencing a region of the mitochondrial gene Cytochrome C oxidase subunit I (COI) with CIF-CIR primers, corroborated through classical taxonomy. This study identified four fungal species associated with four species of <i>Pseudococcidae</i>. The fungus <i>Phlebopus beniensis</i> was associated with the mealybugs <i>Pseudococcus elisae</i>, <i>Dysmicoccus neobrevipes</i>, <i>D. brevipes</i>, and <i>Pseudococcus nr. sociabilis</i>. <i>Phlebopus portentosus</i> was linked to <i>D. neobrevipes</i>, while <i>Xerophorus olivascens</i> and <i>Boletinellus rompelii</i> were associated with other <i>Pseudococcidae</i> species. Additionally, the fungus <i>Pseudolaccaria pachyphylla</i> was found in coffee plants harboring mealybugs. These findings confirm the existence of specific associations between fungal species and mealybug insects that affect coffee plants.https://www.mdpi.com/2073-4395/15/3/551biotrophiccoffeemealybugsmutualismrootssporocarps
spellingShingle Luz Andrea Carmona-Valencia
Lucio Navarro-Escalante
Pablo Benavides
Zulma Nancy Gil Palacio
The Association Between Basidiomycete Fungi and Mealybugs Pseudococcidae Affects Coffee Plants
Agronomy
biotrophic
coffee
mealybugs
mutualism
roots
sporocarps
title The Association Between Basidiomycete Fungi and Mealybugs Pseudococcidae Affects Coffee Plants
title_full The Association Between Basidiomycete Fungi and Mealybugs Pseudococcidae Affects Coffee Plants
title_fullStr The Association Between Basidiomycete Fungi and Mealybugs Pseudococcidae Affects Coffee Plants
title_full_unstemmed The Association Between Basidiomycete Fungi and Mealybugs Pseudococcidae Affects Coffee Plants
title_short The Association Between Basidiomycete Fungi and Mealybugs Pseudococcidae Affects Coffee Plants
title_sort association between basidiomycete fungi and mealybugs pseudococcidae affects coffee plants
topic biotrophic
coffee
mealybugs
mutualism
roots
sporocarps
url https://www.mdpi.com/2073-4395/15/3/551
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