Related Experiment Video
Updated: Oct 21, 2025

10:14
Double-stranded RNA Oral Delivery Methods to Induce RNA Interference in Phloem and Plant-sap-feeding Hemipteran Insects
Published on: May 4, 2018
14.0K
Abstract:
The interrelationships of 2 diaspidid scale insects of the geunus Parlatoria, infesting citrus, were investigated during several years in the field. It was found that P. pergandii Comstock was more numerous in the summer, P. cinerea Hadden in the winter. With reference to the respective geographical distribution of these species, it is postulated that climatic conditions annually modify the common habitat and thus determine the outcome.
Related Concept Videos
Symbiosis
34.6K
Symbiotic relationships are long-term, close interactions between individuals of different species that affect the distribution and abundance of those species. When a relationship is beneficial to both species, this is called mutualism. When the relationship is beneficial to one species but neither beneficial nor harmful to the other species, this is called commensalism. When one organism is harmed to benefit another, the relationship is known as parasitism. These types of relationships often...
34.6K
Epiphytes, Parasites, and Carnivores
15.2K
Plants often form mutualistic relationships with soil-dwelling fungi or bacteria to enhance their roots’ nutrient uptake ability. Root-colonizing fungi (e.g., mycorrhizae) increase a plant’s root surface area, which promotes nutrient absorption. While root-colonizing, nitrogen-fixing bacteria (e.g., rhizobia) convert atmospheric nitrogen (N2) into ammonia (NH3), making nitrogen available to plants for various biological functions. For example, nitrogen is essential for the...
15.2K
Pollination and Flower Structure
72.7K
Flowers are the reproductive, seed-producing structures of angiosperms. Typically, flowers consist of sepals, petals, stamens, and carpels. Sepals and petals are the vegetative flower organs. Stamens and carpels are the reproductive organs.
72.7K

