Activity of Leucine Aminopeptidase of Telchin licus licus: An Important Insect Pest of Sugarcane

Valencia, Jaime; de, Maria Fatima Grossi; Jiménez, Arnubio Valencia

doi:10.2174/0929866521666140110111539

Cited by 3 publications

(2 citation statements)

References 25 publications

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“…The giant sugarcane borer, Telchin licus (Drury) (Lepidoptera: Castniidae), also known as the banana stem borer, is one of the most important pests of sugarcane in Central and South America (Mendonça 1996;Bustillo 2013), although it also attacks banana and pineapple (Lamas 1993). This pest has caused production losses in sugarcane ranging from 20% to 60% in Bolivia, Brazil, Colombia, Central America, and the Caribbean (Rios & Gonzalez 2011;Valencia et al 2014). In the central region of Colombia, the pest can be problematic in sugarcane grown for panela, a local unrefined sugar product, whereas in the western and eastern regions, it damages cane grown for refined sugar and ethanol production.…”

Section: Introductionmentioning

confidence: 99%

Cultural Control of Giant Sugarcane Borer, Telchin licus (Lepidoptera: Castniidae), by Soil Mounding to Impede Adult Emergence

Pabón-Valverde

Michaud

Vargas

2022

Florida Entomologist

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The giant sugarcane borer, Telchin licus (Drury) (Lepidoptera: Castniidae), also known as the banana stem borer, is an economically important pest of sugarcane in eastern Colombia. The presence of larval and pupal stages within stalks makes biological control of this pest difficult, and growers often resort to insecticide applications. Hilling up the soil around the base of plants, or soil mounding, is a cultural practice sometimes used to improve rooting in sugarcane. Because mature larvae cut holes in stalks close to ground level through which they can emerge as an adult, we hypothesized that soil mounding would impede adult emergence, and thus contribute to population reduction. Two experiments were conducted in fields with significant infestations of this pest in Puerto López, Meta, Colombia, during the seasons of adult emergence in this region (Apr-May and Oct-Nov). Manual mounding of soil to a height of 20 cm was tested in the first trial, and mechanized mounding of soil in the second, which also compared 2 mounding heights (10 and 20 cm). In both cases, 2 m row transects of plants were caged to collect emergent adults. Adult emergence was reduced up to 65% in all mounding treatments, whether manual or mechanical, and regardless of mounding height, demonstrating that this cultural practice could be a useful tactic for inclusion in an integrated management program for this pest. However, as with any other cultural practice in pest management, region-wide implementation likely would be required to impact local population densities, and efficacy will depend further on low levels of moth immigration from alternative host plants.

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Section: Introductionmentioning

confidence: 99%

Cultural Control of Giant Sugarcane Borer, Telchin licus (Lepidoptera: Castniidae), by Soil Mounding to Impede Adult Emergence

Pabón-Valverde

Michaud

Vargas

2022

Florida Entomologist

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“…These toxins bind to specific receptors in 1 -Programa de Pós-graduação em Genética, Universidade de São Paulo, Ribeirão Preto, São Paulo, Brazil 2 -Universidade Federal de São Carlos, São Paulo, Brazil RESEARCh ARTICLE -BEES the midgut, aminopeptidases being one of these receptors, producing pores that lead to cell lysis and the death of the insect (Ferré & Van Rie, 2002). Also, some strategies for controlling insect pests are based on the screening for natural inhibitors of aminopeptidases (Valencia et al, 2014). Aminopeptidases are more active than carboxypeptidases in the gut of insects (Terra & Ferreira, 1994).…”

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Leucine-aminopeptidase A (LAP-A) Encoding Gene in Apoidea: from Genomic Identification to Functional Insights Based on Gene Expression

Bataglia¹,

Godoy²,

Lama³

et al. 2018

Sociobiology

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Aminopeptidases are enzymes that cleave the N-terminal region of proteins and show structural conservation in prokaryotes and eukaryotes. We aimed to identify leucine-aminopeptidase A (LAP-A) orthologs in the genome of bee species with diff erent levels of social organization, and to explore the putative roles of this enzyme based on gene expression data. We identified a single gene for LAP-A on chromosome 15 of Apis mellifera L. and predicted orthologs in genomes of 11 bee species. We found evidence of LAP-A expression in more than 50 bee species. In honeybee and other bees, LAP-A transcripts were expressed in diverse tissues, including: brains, fat bodies, ovaries, testicles, integuments, and glands, on diff erent developmental stages that spanned from embryogenesis to adult life. Our fi ndings on the transcriptional activity of LAP-A are consistent with previously published data on enzymatic activity of LAP-A in bees throughout the development in different tissues and in both sexes. The presence of LAP-A gene in the Apoidea genomes and its ubiquitous expression support housekeeping roles of this enzyme and broad-spectrum functions in bees, independente of their life styles.

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Morphological and molecular characterization of Castniidae (Lepidoptera) associated to sugarcane in Colombia

Aya

Pabón

González

et al. 2021

Bull. Entomol. Res.

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The giant sugarcane borer, Telchin licus, has been reported as an economically important sugarcane pest in Colombia; however, its taxonomic status has been scarcely investigated and previous reports offer an ambiguous characterization of both the immature and adult stages. The objective of this work is to identify Telchin species affecting sugarcane and alternative hosts in different departments of the country by integrating molecular analysis and conventional morphology. To date, T. licus has been found in the departments of Caquetá, Casanare, and Meta, while T. atymnius has been found in Antioquia, Caldas, Nariño, and Valle del Cauca. Sugarcane, Musaceae, and Heliconiaceae have been found to be hosts to both species. Additionally, the species T. cacica has also been registered in the department of Nariño, affecting heliconias and plantains. Genetic variation within the species allowed differentiation at the molecular level of subspecies of T. licus and T. atymnius, confirming that the subspecies present in Colombia are T. licus magdalena, T. atymnius humboldti, and T. atymnius atymnius. The haplotype diversity of populations is closely related to their geographical distribution, indicating low gene flow between populations and possible speciation inside the country. Analysis of genetic variance showed significant differences among and within T. atymnius populations, which may suggest a high genetic structure along the regions where it is found and the possible presence of additional subspecies to those previously reported. To understand the geographical and environmental conditions that determine the pest's distribution in Colombia, this information needs to be complemented with ecological considerations of possible geographical isolation and association of alternative hosts.

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Activity of Leucine Aminopeptidase of Telchin licus licus: An Important Insect Pest of Sugarcane

Cited by 3 publications

References 25 publications

Cultural Control of Giant Sugarcane Borer, Telchin licus (Lepidoptera: Castniidae), by Soil Mounding to Impede Adult Emergence

Cultural Control of Giant Sugarcane Borer, Telchin licus (Lepidoptera: Castniidae), by Soil Mounding to Impede Adult Emergence

Leucine-aminopeptidase A (LAP-A) Encoding Gene in Apoidea: from Genomic Identification to Functional Insights Based on Gene Expression

Morphological and molecular characterization of Castniidae (Lepidoptera) associated to sugarcane in Colombia

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