Requirement for Ribonucleic Acid in a Semi-Synthetic Larval Diet for the Mosquito Culex Pipiens

Dadd, R. H.; Gómez, I.; Nambe, M.

doi:10.1093/jmedent/10.1.47

Cited by 19 publications

(4 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These observa- Archives of Insect Biochemistry and Physiology tions suggest that McFarlane's (1991) initial dietary phosphorus concentrations were on the ascending portion of the quadratic curve. The finding of Dadd et al (1973) that additional potassium phosphate did not increase the growth rate of larval mosquitoes may have been due to the fact that the concentration of phosphate was already high in the base diet (8.6 mM P, not including the phosphorus in the RNA added to the diet), and thus was parallel to the standard and high-phosphorus artificial diets in our experiments and may have been on the descending portion of the quadratic curve. Smith (1960) showed that increased plant phosphorus led to lower grasshopper growth rates, a finding inconsistent with this study.…”

Section: Dietary Phosphorus May Limit M Sexta Growth In the Fieldmentioning

confidence: 66%

“…Increasing dietary phosphorus has been shown to increase growth rates in caterpillars (Clancy and King, 1993) and crickets (McFarlane, 1991). Growth rates decreased in grasshoppers (Smith, 1960) and remained unchanged in mosquitoes (Dadd et al, 1973) in response to fluctuations in the amount of dietary phosphorus. The range of dietary phosphorus in three of these studies was not compared with the variation in phosphorus of the insects' natural diets (Smith, 1960;Dadd et al, 1973;McFarlane, 1991), and in the sole exception the minimum dietary phosphorus concentration was almost double the minimum observed foliar phosphorus concentration (Clancy and King, 1993).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Dietary phosphorus affects the growth of larval Manduca sexta

Perkins

Woods

Harrison

et al. 2004

Arch Insect Biochem Physiol

128

119

View full text Add to dashboard Cite

Although phosphorus has long been considered an important factor in the growth of diverse biota such as bacteria, algae, and zooplankton, insect nutrition has classically focused on dietary protein and energy content. However, research in elemental stoichiometry has suggested that primary producer biomass has similar N:P ratios in aquatic and terrestrial systems, and phosphorus-rich herbivores in freshwater systems frequently face phosphorus-limited nutritional conditions. Therefore, herbivorous insects should also be prone to phosphorus limitation. We tested this prediction by rearing Manduca sexta larvae on artificial and natural (Datura wrightii leaves) diets containing varying levels of phosphorus (approximately 0.20, 0.55, or 1.2% phosphorus by dry weight). For both artificial and natural diets, increased dietary phosphorus significantly increased growth rates and body phosphorus contents, and shortened the time to the final instar molt. Caterpillars did not consistently exhibit compensatory feeding for phosphorus on either type of diet. The growth and body phosphorus responses were not explicable by changes in amounts of potassium or calcium, which co-varied with phosphorus in the diets. Concentrations of phosphorus in D. wrightii leaves collected in the field varied over a range in which leaf phosphorus is predicted to affect M. sexta's growth rates. These results suggest that natural variation in dietary phosphorus is likely to affect the growth rate and population dynamics of M. sexta, and perhaps larval insects more generally.

show abstract

Section: Dietary Phosphorus May Limit M Sexta Growth In the Fieldmentioning

confidence: 66%

Section: Introductionmentioning

confidence: 99%

Dietary phosphorus affects the growth of larval Manduca sexta

Perkins

Woods

Harrison

et al. 2004

Arch Insect Biochem Physiol

128

119

View full text Add to dashboard Cite

show abstract

“…They include: Culiseta incidens (Thorn) (Frost et a l . , 1936), Culex pipiens pipiens (L) (Buddinnton, 1941;Dadd et al . , 1973), Culex moles tus Forskal (Leichenstein, 1948), Aedea taeniovhynohus (Wiedeman) (Nayar, 1966) The objective of most of these studies has been to define the nutritional requirements of mosquitoes, rather than to investigate the microflorahost relationship.…”

Section: Resultsmentioning

confidence: 99%

“…Eg g-sterilizat ion m ethod Several methods for the surface sterilization of mosquito eggs were tried including peracetic acid (Doll et a 1 . , 1963), antibiotics (Epps et al, 1950), Lysol R (Adkin and Bacot, 1917), Clorox R (Lea, 1957), iodine, alcohol, Zephiran R (Dadd et al , 1973) and White's solution (White, 1931).…”

Section: Resultsmentioning

confidence: 99%