Physiological responses of resistant and susceptible buffalograsses to Blissus occiduus (Hemiptera: Blissidae) feeding

Tiffany Heng-Moss, Tulio Macedo, Lisa Franzen, Frederick Baxendale, Leon Higley, Gautam Sarath

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

The impact of Blissus occiduus Barber feeding on resistant ('Prestige') and susceptible ('378') buffalograsses, Buchloë dactyloides (Nuttall) Engelmann, was evaluated through measurement of carbon exchange rate, light and carbon assimilation (A-Ci) curves, chlorophyll a fluorescence, and nonstructural carbohydrates. No significant differences in carbon exchange rates were observed between infested and control plants for 378 at 5 and 10 d after infestation; however, at 20 d after chinch bug introduction, significant differences in carbon exchange rates between infested and control 378 plants were detected. Carbon exchange rates were similar between infested and control Prestige plants at 5, 10, and 20 d after infestation, suggesting that resistant plants can allocate energy for recovery from chinch bug injury. Significant differences in the photochemical efficiency of photosystem II (PSII) and the apparent photosynthetic electron transport ratio were observed between infested and control 378 plants, whereas, no significant differences in the photochemical efficiency of PSII and the electron transport ratio were detected between control and infested Prestige plants. Blissus occiduus-infested 378 and Prestige plants consistently had similar or higher levels of nonstructural carbohydrates compared with their respective control plants. These data suggest that both resistant and susceptible buffalograsses increase levels of nonstructural carbohydrates in response to B. occiduus feeding. This research also suggests compensatory photosynthesis takes place in Prestige but not in 378.

Original languageEnglish (US)
Pages (from-to)222-228
Number of pages7
JournalJournal of economic entomology
Volume99
Issue number1
DOIs
StatePublished - Feb 1 2006

Fingerprint

Blissus occiduus
Blissidae
Bouteloua dactyloides
physiological response
Hemiptera
exchange rate
Blissus leucopterus
carbon
carbohydrate
carbohydrates
photosystem II
electron transfer
energy recovery
electron
chlorophyll a
photosynthesis
fluorescence

Keywords

  • Blissus occiduus
  • Buffalograss
  • Carbon exchange rates
  • Fluorescence kinetics
  • Nonstructural carbohydrates

ASJC Scopus subject areas

  • Ecology
  • Insect Science

Cite this

Physiological responses of resistant and susceptible buffalograsses to Blissus occiduus (Hemiptera : Blissidae) feeding. / Heng-Moss, Tiffany; Macedo, Tulio; Franzen, Lisa; Baxendale, Frederick; Higley, Leon; Sarath, Gautam.

In: Journal of economic entomology, Vol. 99, No. 1, 01.02.2006, p. 222-228.

Research output: Contribution to journalArticle

Heng-Moss, Tiffany ; Macedo, Tulio ; Franzen, Lisa ; Baxendale, Frederick ; Higley, Leon ; Sarath, Gautam. / Physiological responses of resistant and susceptible buffalograsses to Blissus occiduus (Hemiptera : Blissidae) feeding. In: Journal of economic entomology. 2006 ; Vol. 99, No. 1. pp. 222-228.
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