Skip to main content
Log in

Defensive responses of rice cultivars resistant to Cnaphalocrocis medinalis (Lepidoptera: Crambidae)

  • Original Paper
  • Published:
Arthropod-Plant Interactions Aims and scope Submit manuscript

Abstract

Cnaphalocrocis medinalis (Guenée) (Lepidoptera: Crambidae) is an economically important pest of rice, Oryza sativa L. (Poaceae), throughout Asia, where damage caused by larvae, particularly during grain-filling stages, significantly increases yield losses. There is, therefore, a pressing need to develop cultivars that are resistant to C. medinalis. In this study, we assessed growth and mortality of first and third instar C. medinalis larvae fed on six rice cultivars that had previously been identified as resistant to the pest, and we quantified production of defense enzymes in plants exposed to herbivory. We found that mortality rates were highest in larvae fed on the resistant cultivars Baiqiaowan, Sasanishiki, Qingliu, and Kasalasu, while relative growth rates were lower for larvae fed on Baiqiaowan and Qingliu. Higher levels of phenylalanine ammonia lyase were expressed in the resistant cultivars. Qingliu plants exposed to herbivory by C. medinalis produced higher levels of jasmonyl isoleucine and salicylic acid (SA) than plants of the susceptible cultivar TN1, and levels of SA in Qingliu plants were intrinsically higher prior to feeding by C. medinalis.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Fig. 1
Fig. 2
Fig. 3
Fig. 4

Similar content being viewed by others

References

Download references

Acknowledgements

We thank the Ministry of Science and Technology, Taiwan, for funding this work (104-2313-B-002-001-MY2, 106-2313-B-002-001, 106-2311-B-002-025 and 107-2311-B-002-018-MY3). We thank Dr. Shu-Jen Wang for providing TN1 seeds, Dr. Chi-Te Liu for providing vacuum equipment, and Dr. Yet-Ran Chen for supporting phytohormone analysis in the Metabolomics Core Facility, Academia Sinica, Taiwan. We are grateful to Dr. Charles Michael Smith for suggestions on how to improve the manuscript and Dr. Shin-Fu Tsai for statistical consultation.

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Wen-Po Chuang.

Additional information

Handling Editor: Ritu Chaudhary.

Publisher’s Note

Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Guo, TW., Liao, CT. & Chuang, WP. Defensive responses of rice cultivars resistant to Cnaphalocrocis medinalis (Lepidoptera: Crambidae). Arthropod-Plant Interactions 13, 611–620 (2019). https://doi.org/10.1007/s11829-019-09673-4

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s11829-019-09673-4

Keywords

Navigation