Results 111 to 120 of about 489 (138)

Susceptibility of the ant-cultivated fungus Leucoagaricus gongylophorus (Agaricales: Basidiomycota) towards microfungi [PDF]

Mycopathologia, 2006
The aim of this study was to select virulent strains of microfungi against Leucoagaricus gongylophorus, a symbiotic fungus cultivated by leaf-cutting ants. The results from in vitro assays showed that microfungal strains had a variable and significant impact on the colony development of L. gongylophorus.
André Rodrigues, Mauricio Bacci, Fernando C Pagnocca   +2 more
exaly   +5 more sources

Molecular and Kinetic Characterization of Two Extracellular Xylanases Isolated from Leucoagaricus gongylophorus

Applied Biochemistry and Biotechnology, 2014
In this work, the xylanolytic profile of Leucoagaricus gongylophorus was studied, and two extracellular enzymes with xylanolytic activity (XyLg1 and XyLg2) were isolated, purified, and characterized. XyLg1 has a molecular mass of about 38 kDa and pI greater than 4.8.
Douglas Ferreira, Fernando G De Almeida, Edson Rodrigues-Filho   +2 more
exaly   +5 more sources

Production of Polysaccharidases in Different Carbon Sources by Leucoagaricus gongylophorus Möller (Singer), the Symbiotic Fungus of the Leaf-Cutting Ant Atta sexdens Linnaeus [PDF]

Current Microbiology, 2006
Leucoagaricus gongylophorus, the fungus cultured by the leaf-cutting ant Atta sexdens, produces polysaccharidases that degrade leaf components by generating nutrients believed to be essential for ant nutrition. We evaluated pectinase, amylase, xylanase, and cellulase production by L. gongylophorus in laboratory cultures and found that polysaccharidases
Mauricio Bacci, Fernando C Pagnocca, Bacci Mauricio   +2 more
exaly   +5 more sources

Activity ofRicinus communis(Euphorbiaceae) and ricinine against the leaf-cutting antAtta sexdens rubropilosa(Hymenoptera: Formicidae) and the symbiotic fungusLeucoagaricus gongylophorus

Pest Management Science, 2004
The focus of this study was the identification of compounds from plant extracts for use in crop protection. This paper reports on the toxic activity of fractions of leaf extracts of Ricinus communis L (Euphorbiaceae) and isolated active compounds in the leaf-cutting ant Atta sexdens rubropilosa Forel and its symbiotic fungus Leucoagaricus gongylophorus
Fernando C Pagnocca, Paulo C Vieira, Maria Fátima Das Graças Fernandes da Silva   +2 more
exaly   +5 more sources

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Immobilization of pectinase from Leucoagaricus gongylophorus on magnetic particles

Analyst, The, 2012
Polygalacturonases (EC 3.2.1.15) hydrolyze the α-1,4-glycosidic linkages in polygalacturonic acid chains. The interest on specific inhibitors of pectinase and the versatility of magnetic support for enzyme immobilization endorsed the preparation of an immobilized enzyme reactor (IMER).
Dulce Helena Ferreira De Souza, Quezia B Cass   +1 more
exaly   +3 more sources

Dillapiole in Piper holtonii as an Inhibitor of the Symbiotic Fungus Leucoagaricus gongylophorus of Leaf-Cutting Ants

Journal of Chemical Ecology, 2020
Plants of the Piperaceae family are studied for their diverse secondary metabolism with a vast array of compounds that act as chemical defense agents against herbivores. Of all the agricultural pests, the management of insects is a highly significant challenge in the Neotropics, and ants of the Attini tribe pose a major problem.
Adriana Ortiz-Reyes, Tatiana Lobo-Echeverri   +1 more
exaly   +3 more sources

Growth of Leucoagaricus gongylophorus Möller (Singer) and production of key enzymes in submerged and solid-state cultures with lignocellulosic substrates

Biotechnology Letters, 2021
The aim of this study was to characterize the growth of the fungus Leucoagaricus gongylophorus LEU18496, isolated from the fungus garden of the nest of leaf cutter ants Atta mexicana. The fungus garden was cultivated in an artificial laboratory nest and the fungus further grown in submerged (SmC) and solid state (SSC) cultures with sugarcane bagasse ...
Sérgio Revah, Sylvie Le Borgne, Eduardo Térres-Rojas   +2 more
exaly   +3 more sources

Biodegradation of anthracene and different PAHs by a yellow laccase from Leucoagaricus gongylophorus

Environmental Science and Pollution Research, 2019
Laccases produced by Leucoagaricus gongylophorus act in lignocellulose degradation and detoxification processes. Therefore, the use of L. gongylophorus laccase (Lac1Lg) was proposed in this work for degradation of anthracene and others polycyclic aromatic hydrocarbons without the use of mediators.
Willian G Birolli, Danilo M Dos Santos, André L M Porto   +2 more
exaly   +3 more sources

Leaf cutting ants, their fungus gardens and the formation of basidiomata of Leucoagaricus gongylophorus

The Mycologist, 1994
P J Fisher, D N Pegler
exaly   +2 more sources