Ultrastructure observations on antennal sensilla of Heortia vitessoides the most serious pest of Aquilaria sinensis.
10.19540/j.cnki.cjcmm.20190325.105
- Author:
Hai-Li QIAO
1
;
Peng-Fei LU
2
;
Sai LIU
1
;
Chang-Qing XU
1
;
Kun GUO
1
;
Rong XU
1
;
Jun CHEN
1
Author Information
1. Institute of Medicinal Plant Development,Chinese Academy of Medical Sciences and Peking Union Medical College Beijing 100193,China.
2. Key Laboratory for Silviculture and Conservation of Ministry of Education,Beijing Forestry University Beijing 100083,China.
- Publication Type:Journal Article
- Keywords:
Aquilaria sinensis;
Heortia vitessoides;
antenna sensilla;
scanning electron microscope(SEM);
ultrastructure
- MeSH:
Animals;
China;
Female;
Lepidoptera;
anatomy & histology;
Male;
Microscopy, Electron, Scanning;
Sensilla;
ultrastructure;
Thymelaeaceae;
anatomy & histology
- From:
China Journal of Chinese Materia Medica
2019;44(10):2026-2031
- CountryChina
- Language:Chinese
-
Abstract:
Heortia vitessoides is the most serious pest of Aquilaria sinensis,which is an economically important evergreen tree native to China and is the principal source of Chinese agarwood. In severe infestations,the insects completely eat up the leaves of A. sinensis,causing severe economic losses. In a more recent study,we found that the antennal sensilla of adult play important roles in the host location,mating and oviposition of H. vitessoides. Here,the external morphology of the antennal sensilla of H. vitessoides were examined using scanning electron microscopy. The result showed that the antennae of both sexes of H. vitessoides were filiform in shape,which consist of the scape,pedicel and about 64 segments of flagellomeres. Eight morphological sensilla types were recorded in both sexes,including sensilla trichodea,sensilla chaetica,sensilla basiconica,sensilla coeloconica,sensilla styloconica,sensilla auricillica,sensilla squamiformia and böhm bristle. Major differences were recorded in the distribution and quantity of different sensilla types in each segment of antenna. The sensillas are almost confined to the ventral and lateral surfaces rather than the back side of antennae. Antennal flagella contained the most sensilla while the scape and pedicel segments only contained böhm bristles and sensilla squamiformias. Sensilla trichodea Ⅲ were only found on male antennae. These results are discussed in relation to the possible roles of the sensilla types in the host location,mating and oviposition selection behavior of H. vitessoides.
