Rice Insect Resistance
Rice Insect Resistance - Related Videos
08:24
Choice and No-Choice Assays for Testing the Resistance of A. thaliana to Chewing Insects
0 Views •
Cited by 7 •
2008
Plant resistance to chewing insect herbivores can be tested in several ways. Here, we demonstrate how to set-up a choice and a no-choice experiment with the model plant Arabidopsis thaliana to identify resistance against the pest species Pieris rapae.
12:47
A Technique to Screen American Beech for Resistance to the Beech Scale Insect (Cryptococcus fagisuga Lind.)
0 Views •
Cited by 8 •
2014
Beech bark disease is initiated by feeding activities of the beech scale insect that create fungal entry points in the bark. Trees that are resistant to the scale insect are also disease resistant. Here we present the protocol we have developed to screen individual beech trees for beech scale resistance.
01:47
Osmoregulation in Insects
0 Views •
2019
Malpighian tubules are specialized structures found in the digestive systems of many arthropods, including most insects, that handle excretion and osmoregulation. The tubules are typically arranged in pairs and have a convoluted structure that increases their surface area. Malpighian tubules extend from the digestive tract, typically the area between the midgut and hindgut, into the hemolymph—a mixture of blood and interstitial fluid found in insects and other arthropods, as well as most...
06:30
Bioassays for Monitoring Insecticide Resistance
0 Views •
Cited by 45 •
2010
This manuscript demonstrates and discusses techniques used to survey pesticide susceptibility and detect resistance to contact and systemic pesticides in arthropod pests.
02:26
Establishment of Rice Plant Leaf Infection through Fungal Inoculation via Wounding
0 Views •
2025
This video demonstrates the establishment of rice plant leaf infection through wounding inoculation with Magnaporthe grisea mycelium. The fungal spore-derived germ tube penetrates the epidermal layer, resulting in tissue infection and lesions on the leaves. This method aids pathotype screening and improves plant resistance understanding for molecular breeding.
FAQs
Physical surface traits can make rice less accessible or less suitable for insect feeding. Toughness may hinder damage, while hairs can deter contact or feeding. These traits act before chemical or genetic defenses become important, so they are useful examples of how plant structure can reduce pest pressure without depending on chemical control.
Rice can produce chemical compounds that deter insects, while genetic defenses can restrict feeding, development, or reproduction. These mechanisms affect different stages of the pest interaction: deterrence may reduce feeding, whereas limits on development or reproduction can reduce later pest success. Together, they help explain why resistance can involve more than one plant response.
Resistance is not limited to preventing insects from feeding. Some rice plants may withstand damage or recover after it occurs, while other traits deter pests or interfere with their development and reproduction. Considering these responses together gives researchers a broader way to evaluate plant performance and helps identify varieties that remain productive under insect pressure.
Researchers assess rice responses through both laboratory and field screening. Laboratory tests can examine plant and insect interactions under controlled research conditions, while field screening evaluates responses where plants experience agricultural conditions. Using both settings helps compare resistance traits and determine whether observed responses remain relevant beyond a controlled test environment.
Breeding resistant rice varieties incorporates useful resistance traits into crop improvement efforts. The goal is not simply to reduce visible insect damage, but to develop plants better able to withstand, deter, or recover from pest pressure. Such varieties can strengthen crop resilience and provide a foundation for reducing reliance on chemical control.
Within integrated pest management, resistant rice can help lower the need for pesticide applications. Reduced chemical reliance may help protect beneficial organisms and decrease agricultural impacts on soil and water. This makes resistance an environmental strategy as well as a crop-protection trait, particularly when combined with broader efforts to manage pests sustainably.