Reflectance-based identification of parasitized host eggs and adult Trichogramma specimens

The Journal of Experimental Biology
Christian NansenJosé R P Parra

Abstract

A wide range of imaging and spectroscopy technologies is used in medical diagnostics, quality control in production systems, military applications, stress detection in agriculture, and ecological studies of both terrestrial and aquatic organisms. In this study, we hypothesized that reflectance profiling can be used to successfully classify animals that are otherwise very challenging to classify. We acquired hyperspectral images from adult specimens of the egg parasitoid genus Trichogramma (T. galloi, T. pretiosum and T. atopovirilia), which are ~1.0 mm in length. We also acquired hyperspectral images from host eggs containing developing Trichogramma instar and pupae. These obligate egg endoparasitoid species are commercially available as natural enemies of lepidopteran pests in food production systems. Because of their minute size and physical resemblance, classification is time consuming and requires a high level of technical experience. The classification of reflectance profiles was based on a combination of average reflectance and variogram parameters (describing the spatial structure of reflectance data) of reflectance values in individual spectral bands. Although variogram parameters (variogram analysis) are commonly used ...Continue Reading

References

Apr 18, 2003·Archives of Insect Biochemistry and Physiology·Ralph W Howard, James E Baker
Feb 23, 2010·Journal of Insect Physiology·M J Ferreira-CalimanR Zucchi
Apr 10, 2010·Medical and Veterinary Entomology·W K ReevesF E Dowell
Jun 12, 2010·Applied Spectroscopy·Christian NansenRand Swanson
Feb 11, 2011·The Journal of Experimental Biology·Alison M SweeneyDaniel E Morse
May 4, 2011·Journal of Chemical Ecology·Jasmin KlaricaFlorian M Steiner
May 18, 2011·Proceedings of the National Academy of Sciences of the United States of America·Chuan-Chin ChiaoRoger T Hanlon

❮ Previous
Next ❯

Citations

Dec 15, 2015·Pest Management Science·Christian Nansen
Mar 18, 2016·Annual Review of Entomology·Christian Nansen, Norman Elliott
Apr 29, 2015·Experimental & Applied Acarology·Christian NansenThomas James Ridsdill-Smith
Feb 26, 2015·PloS One·Changqing LuoChristian Nansen
Mar 2, 2019·Journal of Insect Science·José Roberto Postali Parra, Aloisio Coelho
Jul 11, 2018·Plant Methods·Leandro do Prado RibeiroChristian Nansen

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.