Get access

Upregulation of probing- and feeding-related behavioural frequencies in Bemisia tabaci upon acquisition of Tomato yellow leaf curl virus

Authors

  • SM Hemayet Jahan,

    1. School of Applied Biosciences, Kyungpook National University, Daegu, Republic of Korea
    2. Department of Entomology, Patuakhali Science and Technology University, Dumki, Patuakhali, Bangladesh
    Search for more papers by this author
  • Gwan-Seok Lee,

    1. National Institute of Agricultural Science, Suwon, Republic of Korea
    Search for more papers by this author
  • Sukchan Lee,

    1. Department of Genetic Engineering, Sungkyunkwan University, Suwon, Republic of Korea
    Search for more papers by this author
  • Kyeong-Yeoll Lee

    Corresponding author
    1. School of Applied Biosciences, Kyungpook National University, Daegu, Republic of Korea
    2. Institute of Plant Medicine, Kyungpook National University, Daegu, Republic of Korea
    • Correspondence to: Kyeong-Yeoll Lee, School of Applied Biosciences, Kyungpook National University, Daegu 702–701, Republic of Korea. E-mail: leeky@knu.ac.kr

    Search for more papers by this author

Abstract

BACKGROUND

The behaviour of insect vectors can be altered by the acquisition of plant viruses. Bemisia tabaci, which is the vector of Tomato yellow leaf curl virus (TYLCV), causes damage to susceptible tomato cultivars. Here, the frequencies of several behavioural characteristics related to probing and feeding that are exhibited by non-viruliferous (NV) and TYLCV-viruliferous (V) adult B. tabaci were compared using a sandwich-type parafilm cage.

RESULTS

The frequencies of behaviours such as wing flapping, leg movement, body shaking and body position change while settling and feeding on plant leaves were higher in V than in NV whiteflies. Evaluation of probing frequencies by measuring the number and size of holes punctured in parafilm by whiteflies revealed that most holes had a diameter of 7.5–26.7 µm, which is within the range of proboscis diameters of whiteflies. There were more small-sized holes than medium- and large-sized holes. Male whiteflies produced more small-sized holes, but females more mid-sized holes. V whiteflies showed increased hole numbers but decreased feeding duration relative to NV whiteflies.

CONCLUSION

Adult B. tabaci showed higher frequencies of probing and feeding behaviours when infected with TYLCV. These manipulations of feeding behaviours of insect vectors may result in increased transmission of plant virus. © 2014 Society of Chemical Industry

Ancillary