Results 11 to 20 of about 1,860 (212)

Adaptive social immunity in leaf-cutting ants [PDF]

Biology Letters, 2009
Social insects have evolved a suite of sophisticated defences against parasites. In addition to the individual physiological immune response, social insects also express ‘social immunity’ consisting of group-level defences and behaviours that include allogrooming.
Walker, Tom N., Hughes, William O. H.
openaire   +7 more sources

Susceptibility of Atta sexdens worker ants treated with the immunosuppressant Sandimmun Neoral to Metarhizium anisopliae [PDF]

Pesquisa Agropecuária Brasileira, 2017
: The objective of this work was to evaluate if the immunosuppressant Sandimmun Neoral enhances the activity of Metarhizium anisopliae against the leaf-cutting ant Atta sexdens.
Aline Silvestre Pereira Dornelas, Renato de Almeida Sarmento, Marçal Pedro-Neto, Daniella Gonçalves da Silva, Gil Rodrigues dos Santos, Mariela Otoni do Nascimento, Cléia Almeida Oliveira, Danival José de Souza   +7 more
doaj   +2 more sources

Interspecific Repellent Effect of Hydroalcoholic Solution of Nest Refuse from Two Leaf-cutter Ant Species

Sociobiology, 2023
Leaf-cutting ants manage their waste continuously to avoid risks of colony contamination. The presence of residues or their odor near foraging areas is enough for ants to stop attacking plant tissues.
Leandro Sousa-Souto, Bianca Giuliano Ambrogi, Rafaella Santana Santos   +2 more
doaj   +1 more source

The dynamics of plant cell-wall polysaccharide decomposition in leaf-cutting ant fungus gardens. [PDF]

PLoS ONE, 2011
The degradation of live plant biomass in fungus gardens of leaf-cutting ants is poorly characterised but fundamental for understanding the mutual advantages and efficiency of this obligate nutritional symbiosis.
Isabel E Moller, Henrik H De Fine Licht, Jesper Harholt, William G T Willats, Jacobus J Boomsma   +4 more
doaj   +1 more source

From Plants to the Fungus Garden: Physical, Chemical, and Behavioral Factors Influencing Foraging in Leaf-Cutting Ants [PDF]

Brazilian Journal of Biology
Leaf-cutting ants selectively forage plant material to cultivate their symbiotic fungus, Leucoagaricus gongylophorus, which constitutes the primary food source for their colonies.
R.S. CAMARGO, L.C FORTI, C.A.O. MATOS, F.A.G. GUILHERME, N.C. OLIVEIRA, A.A. MOREIRA, J.E. SERRÃO, M.A. CASTELLANI, J.C. ZANUNCIO, J.P. PORTUGAL, T.R. MELO SOUZA, B.S. COELHO   +11 more
doaj   +2 more sources

How Do Leaf-Cutting Ants Recognize Antagonistic Microbes in Their Fungal Crops?

Frontiers in Ecology and Evolution, 2020
Leaf-cutting ants employ diverse behavioral strategies for promoting the growth of fungal cultivars in a structure known as fungus garden. As a nutritionally rich resource for the ants, the fungal crop is threatened by microbial antagonists and pathogens.
Aryel C. Goes, Mariana O. Barcoto, Pepijn W. Kooij, Pepijn W. Kooij, Odair C. Bueno, Andre Rodrigues   +5 more
doaj   +1 more source

Daily Foraging Activity of Acromyrmex (Hymenoptera: Formicidae) Leaf-cutting ants

Sociobiology, 2016
Leaf-cutting ants are well-known insects due to their remarkable activity as herbivores and the considerable economic damage they cause to many crops.
Mariane Aparecida Nickele, Wilson Reis Filho, Marcio Roberto Pie, Susete do Rocio Chiarello Penteado   +3 more
doaj   +1 more source

Leaf-cutting ant fungi produce cell wall degrading pectinase complexes reminiscent of phytopathogenic fungi

BMC Biology, 2010
Background Leaf-cutting (attine) ants use their own fecal material to manure fungus gardens, which consist of leaf material overgrown by hyphal threads of the basidiomycete fungus Leucocoprinus gongylophorus that lives in symbiosis with the ants ...
Boomsma Jacobus J, Roepstorff Peter, Rogowska-Wrzesinska Adelina, Schiøtt Morten   +3 more
doaj   +1 more source

Field colonies of leaf‐cutting ants select plant materials containing low abundances of endophytic fungi

Ecosphere, 2013
Endophytic fungi live symbiotically in the tissues of plants. Although a large amount of evidence suggests a mutualistic role for vertically transmitted endophytic fungi in agronomic grasses, the role of horizontally transmitted endophytic fungi as ...
Kyle E. Coblentz, Sunshine A. Van Bael
doaj   +1 more source

Occurrence of Leaf-Cutting and Grass-Cutting Ants of the Genus Atta (Hymenoptera: Formicidae) in Geographic Regions of Brazil

Sociobiology, 2020
Leaf-cutting ants are widely distributed in Brazil, particularly species of the genus Atta. We therefore described the occurrence of leaf-cutting and grass-cutting ant species of the genus Atta.
Luiz Carlos Forti, Jael Santos Rando, Roberto da Silva Camargo, Aldenise Alves Moreira, Maria Aparecida Castellani, Suzany Aguiar Leite, Kátia Kaelly Andrade Sousa, Nadia Caldato   +7 more
doaj   +1 more source