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You searched for: Subject antibiotics Remove constraint Subject: antibiotics Subject fungus gardens Remove constraint Subject: fungus gardens Text availability Citation in PubAg Remove constraint Text availability: Citation in PubAg
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1. Comparative morpho-physiology of the metapleural glands of two Atta leaf-cutting ant queens nesting in clayish and organic soils

Author:
Alexsandro Santana Vieira; Maria Izabel Camargo-Mathias; Flavio Roces
Source:
Arthropod structure & development 2015 v.44 no.5 pp. 444-454
ISSN:
1467-8039
Subject:
Atta sexdens rubropilosa; antibiotics; antiseptics; evolution; fungus gardens; leaf-cutting ants; microorganisms; nesting; organic matter; organic soils; pathogens; queen insects; risk; soil depth; soil horizons
Abstract:
... Queens of leaf-cutting ants found their nests singly, each consisting of a vertical tunnel and a final horizontal chamber. Because of the claustral mode of nest founding, the queen and/or her initial fungus garden are exposed to threats imposed by several soil pathogens, and the antibiotic secretions produced by their metapleural glands are considered a main adaptation to deal with them. Nests of ...
DOI:
10.1016/j.asd.2015.06.005

2. Effects of entomopathogenic fungi on the mortality and immune system of the leaf‐cutting ant Acromyrmex subterraneus subterraneus

Author:
Joel da Cruz Couceiro; Wesler Luiz Marcelino; Karina Dias Amaral; Lailla Cristina Gandra; Danival José de Souza; Terezinha Maria Castro Della Lucia
Source:
Entomologia experimentalis et applicata 2016 v.161 no.2 pp. 152-159
ISSN:
0013-8703
Subject:
Acromyrmex subterraneus subterraneus; Actinobacteria; Aspergillus ochraceus; Metarhizium anisopliae; antibiotics; bacteria; bioassays; conidia; encapsulation; entomopathogenic fungi; fungus gardens; immune response; immune system; immunosuppression; innate immunity; insect immunity; leaf-cutting ants; mortality; parasites
Abstract:
... Acromyrmex leaf‐cutting ants use the antibiotics produced by ectosymbionts (Actinobacteria) to suppress the growth of Escovopsis spp., which are the specialized parasites of attine fungus gardens. However, the spectrum of activity of these bacteria and their interactions with insect immune systems have not been thoroughly studied. The objective of this study was to evaluate whether the presence of ...
DOI:
10.1111/eea.12500

3. Soil actinobacteria inhibit antagonistic fungi of leafcutter ant colonies

Author:
Mariela O. do Nascimento; Amanda C. Teles Tenório; Renato A. Sarmento; Rita de Cássia C. Melo; Terezinha Maria Castro Della Lucia; Karina Dias Amaral; Danival J. de Souza
Source:
Journal of basic microbiology 2022 v.62 no.1 pp. 63-73
ISSN:
0233-111X
Subject:
Atta sexdens; Kitasatospora; Nocardia; Streptomyces; antibiotics; energy costs; fungi; fungus gardens; genes; leaf-cutting ants; metabolites; mortality; risk factors; soil; symbiosis
Abstract:
... Founder females of the leaf‐cutting ant species Atta sexdens experience high mortality during the founding and establishment of their colonies. The foundation site is crucial for the success of a new colony. In this study, we isolated and identified actinobacteria from fungus garden chambers of A. sexdens colony growth in soils from (1) forested areas without leafcutter ant nests and (2) open grou ...
DOI:
10.1002/jobm.202100476