Virus-free Whiteflies
Virus-free Whiteflies - Related Videos
10:22
Transmitting Plant Viruses Using Whiteflies
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Cited by 47 •
2013
Improving our understanding of and our ability to manage many of the insect-transmitted plant viruses requires the use of the vector. Insect transmission of plant viruses is a tritrophic interaction, and as such requires the manipulation of insects, virus, and plant. Vectors must be reared in large numbers and manipulated in such a way as to insure high rates of transmission to test plants. The basics of rearing and manipulating the whitefly, Bemisa tabaci (Hemiptera: Aleyrodidae), a vector of...
01:24
Whitefly-Mediated Transmission of Plant Viruses
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2026
Begin with a zucchini plant that is systemically infected with the tomato leaf curl New Delhi virus.In this plant, viral particles accumulate in the phloem, the vascular tissue that transports sugars and nutrients.Introduce virus-free whiteflies onto the infected zucchini leaves.The whiteflies ingest virus-rich phloem sap from the leaves.The virus moves through the gut lumen, crosses the gut barrier, enters the circulatory fluid, and accumulates in the salivary glands.Use an aspirator to...
06:25
Localization and Quantification of Begomoviruses in Whitefly Tissues by Immunofluorescence and Quantitative PCR
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Cited by 5 •
2020
We describe an immunofluorescence and quantitative PCR method for the localization and quantification of begomoviruses in insect tissues. The immunofluorescence protocol can be used to colocalize viral and vector proteins. The quantitative PCR protocol can be extended to quantify viruses in whole whitefly bodies and virus-infected plants.
07:28
Methods for the Extraction of Endosymbionts from the Whitefly Bemisia tabaci
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Cited by 4 •
2017
Here, we present a protocol to isolate endosymbionts from the whitefly Bemisia tabaci through dissection and filtration. After amplification, the DNA samples are suitable for subsequent sequencing and study of the mutualism between endosymbionts and whitefly.
04:41
Plaquing of Herpes Simplex Viruses
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Cited by 1 •
2021
Plaquing is a routine method used to quantify live viruses in a population. Though plaquing is frequently taught in various microbiology curricula with bacteria and bacteriophages, plaquing of mammalian viruses is more complex and time-consuming. This protocol describes the procedures that function reliably for regular work with herpes simplex viruses.
FAQs
Maintaining virus-free status requires limiting opportunities for insects to encounter infected plant material. Researchers isolate the colony from infected plants, provide virus-free host plants, and keep rearing conditions controlled. Appropriate detection methods then verify that the insects remain healthy and free of viruses, helping preserve a consistent experimental population across studies.
They provide a defined starting point for testing whether whiteflies can acquire, retain, and transmit a plant virus. Because the insects have not previously acquired a virus, researchers can attribute observed infection or transmission outcomes to the experimental exposure rather than to an unknown history of prior contact.
Whiteflies with an unknown exposure history may introduce variation into studies of virus acquisition, retention, or transmission. Using insects maintained without viral contact establishes a consistent baseline. This makes comparisons among treatments more reliable and helps researchers distinguish effects caused by the tested virus or plant interaction from effects associated with pre-existing infection.
Virus-free colonies support investigations of whitefly development, behavior, and plant-insect interactions without an existing plant virus complicating the experiment. This separation allows researchers to examine insect and host responses under defined conditions, then compare those baseline observations with outcomes after deliberate exposure to a virus or infected plant material.
The workflow begins by isolating insects away from infected plants and transferring them to virus-free host plants. Researchers maintain the colony under controlled conditions, monitor insect health, and use appropriate detection methods to verify virus-free status. These steps create standardized insects suitable for subsequent biological, transmission, or plant-interaction experiments.
The essential materials are whiteflies, virus-free host plants, and detection methods suitable for confirming viral status. Controlled rearing conditions help limit unintended exposure and support insect health. Together, the host plants and environmental control provide a stable system in which researchers can maintain colonies and produce insects with a consistent experimental history.
Researchers use these colonies to examine disease epidemiology, evaluate vector control strategies, and investigate plant resistance. Standardized insects make it easier to compare how different plants or interventions influence virus-related outcomes. They also connect laboratory measurements of whitefly behavior and transmission with broader questions about plant-insect interactions and disease spread.