Note:In vitro antagonism of actinomycetes isolated from fungus-growing ants against plant pathogenic fungi

Sánchez-Peña, Sergio R.; Sánchez-Ovalle, M. R.; Gallegos‐Morales, Gabriel; Sánchez-Arizpe, Abiel

doi:10.1007/bf02980811

Cited by 5 publications

(4 citation statements)

References 7 publications

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“…Sen and co‐workers observed generalized inhibitory effects of the actinomycetes of the genera Pseudonocardia and Amycolatopsis against fungi that are found in leafcutter ant nests. Sánchez‐Peña and co‐workers found a similar antibiosis effect of actinomycete symbionts against endophytic fungi, such as Aspergillus flavus , Colletotrichum lindemuthianum , and Rhizoctonia solani . Mattoso and co‐workers reported the role of actinomycetes as the first line of defense against the entomopathogenic fungus Metarhizium anisopliae .…”

Section: Discussionmentioning

confidence: 76%

Actinomycetes inhibit filamentous fungi from the cuticle of Acromyrmex leafcutter ants

Dângelo

Souza

Mendes

et al. 2016

J. Basic Microbiol.

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Actinomycetes bacteria associated with leafcutter ants produce secondary metabolites with antimicrobial properties against Escovopsis, a fungus specialized in attacking the gardens of fungus-growing ants, which denies the ants their food source. Because previous studies have used fungi isolated from fungus gardens but not from ant integument, the aims of the present study were to isolate actinomycetes associated with the cuticle of the Acromyrmex spp. and to quantify their inhibition abilities against the filamentous fungal species carried by these ants. The results demonstrated that actinomycetes had varied strain-dependent effects on several filamentous fungal species in addition to antagonistic activity against Escovopsis. The strain isolated from Acromyrmex balzani was identified as a Streptomyces species, whereas the remaining isolates were identified as different strains belonging to the genus Pseudonocardia. These findings corroborate the hypothesis that actinomycetes do not act specifically against Escovopsis mycoparasites and may have the ability to inhibit other species of pathogenic fungi.

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Section: Discussionmentioning

confidence: 76%

Actinomycetes inhibit filamentous fungi from the cuticle of Acromyrmex leafcutter ants

Dângelo

Souza

Mendes

et al. 2016

J. Basic Microbiol.

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“…For example, fungus-growing ants cultivate actinobacteria that produce antibiotic substances, which can protect the fungal gardens against the antagonistic fungus (Oh et al, 2009a;Carr et al, 2012). Further, Sánchez-Peña et al (2008) found that antinobacteria associated with fungus-growing ants showed significant inhibitory activity against plant pathogenic fungi, which broadens the studies of antinobacteria insect associates to control economically important plant pathogens.…”

Section: Introductionmentioning

confidence: 92%

Community Composition, Antifungal Activity and Chemical Analyses of Ant-Derived Actinobacteria

Wang

Zhao

et al. 2020

Front. Microbiol.

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Actinobacteria associated with insects represent one potentially rich source of novel natural products with antifungal activity. Here, we investigated the phylogenetic diversity and community composition of actinobacteria associated with ants using a combination of culture-dependent and-independent methods. Further, we assessed the antagonistic activity against phytopathogenic fungi and identified the secondary metabolites from isolates with bioactivity. A total of 416 actinobacterial isolates were obtained from three ant species (Camponotus japonicus, Lasius fuliginosus, and Lasius flavus) located in five nests. The largest amount of isolates were observed in the head samples. 16S rRNA gene sequencing showed that the isolates were diverse and belonged to ten genera within the phylum Actinobacteria, with Streptomyces and Micromonospora comprising the most abundant genera. High-throughput sequencing analyses revealed that the actinobacterial communities were more diverse and dominated by the families Nocardioidaceae, Nocardiaceae, Dermacoccaceae, Intrasporangiaceae, and Streptomycetaceae. In addition, 52.3% of the representative isolates had inhibitory properties against phytopathogenic fungi. Chemical analysis of one Streptomyces strain led to the discovery of two known compounds and one new compound. These results demonstrated that ant-derived actinobacteria represented an underexplored bioresource library of diverse and novel taxa that may be of potential interest in the discovery of new agroactive compounds.

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“…This resulted in 11 publications that tested either the effect of ant or ant microbiome produced chemicals' (together called ant-derived chemicals) effect on one or more plant pathogens. In addition to the search result, we were aware of three other relevant publications that were also included in the review (Das et al, 2013;Orivel et al, 2001;Sánchez-Peña et al, 2008).…”

Section: Materials S and Me Thodsmentioning

confidence: 99%

“…Symbionts also showed broad applicability, as each symbiont can produce multiple antibiotics (Seipke et al, 2011). Sánchez-Peña et al (2008) showed that one symbiont strain inhibited all the five plant pathogens that it was tested against, and Gonzalez-Teuber et al ( 2014) showed that two symbionts inhibited all the three micro-organisms used in their survey (two plant pathogens and Escherichia coli). On the other hand, many symbionts may be non-effective, as only 19% of the tested combination were antagonistic (Table 2).…”

Section: Broad-spectrum Propertiesmentioning

confidence: 99%

Combatting plant diseases with ant chemicals: A review and meta‐analysis

Offenberg

Jensen

Hansen

2021

Journal of Applied Ecology

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Crop diseases are a major problem posing serious threats to food security. Emergent plant diseases occur world-wide and have increased sevenfold from 1995 to 2010 (Barwell et al., 2021;Fisher et al., 2012). Their negative impact on crops has been estimated to equal the feed consumption of 8.5% of the world population (Fisher et al., 2012), and five of the seven most serious threats to food security are fungal plant diseases (Pennisi, 2010). Often pathogens build up resistance to synthetic fungicides, which shorten fungicide life span and increase the cost of this measure (Ma & Michailides, 2005). It is therefore imperative to develop current

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Note:In vitro antagonism of actinomycetes isolated from fungus-growing ants against plant pathogenic fungi

Cited by 5 publications

References 7 publications

Actinomycetes inhibit filamentous fungi from the cuticle of Acromyrmex leafcutter ants

Actinomycetes inhibit filamentous fungi from the cuticle of Acromyrmex leafcutter ants

Community Composition, Antifungal Activity and Chemical Analyses of Ant-Derived Actinobacteria

Combatting plant diseases with ant chemicals: A review and meta‐analysis

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