CELLULAR AND CHEMICAL SAMPLING DURING PHLOEM FINDING AND HOST‐PLANT ACCEPTANCE BY HOMOPTERAN INSECTS

Hong Lei, Rumei Xu

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

Abstract The chemical compounds that exist in plant leaf tissue are of great importance for homopteran insects during the proccess of host‐plant acceptance. From the leaf surface to the phloem tube, various groups of chemicals can be detected by insect's receptors which lead to different feeding responses. The effects of sugars and alkaloids in leaf surface; polysaccharides, pH gradients and phenolics in mesophyll; amino acids, proteins, carbohydrates and secondary substances in phloem tube on phloem finding and host‐plant acceptance are reviewed respectively in this paper, which also includes the potential effects of mesophyll structures on insect's feeding preference. Furthermore the mechanism by which the insects perceive these chemical and mechanical cues, correlated with the EPG (electrical penetration graph) patterns (a series of visible signals showing the stylet activities in plant tissue) is also discussed.

Original languageEnglish (US)
Pages (from-to)145-162
Number of pages18
JournalInsect Science
Volume2
Issue number2
DOIs
StatePublished - Jun 1995
Externally publishedYes

Keywords

  • DC‐EPG
  • Homoptera
  • host‐plant acceptance
  • phloem finding

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Agronomy and Crop Science
  • Biochemistry, Genetics and Molecular Biology(all)
  • Insect Science

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