当前位置： SCI文献检索 > JOURNAL OF INSECT PHYSIOLOGY期刊下所有文献 > Central projections of the wing afferents in the hawkmoth, Agrius convolvuli.

Central projections of the wing afferents in the hawkmoth, Agrius convolvuli.

Abstract：

:Flight behaviors in various insect species are closely correlated with their mechanical and neuronal properties. Compared to locusts and flies which have been intensively studied, moths have "intermediate" properties in terms of the neurogenic muscle activations, power generation by indirect muscles, and two-winged-insect-like flapping behavior. Despite these unique characteristics, little is known about the neuronal mechanisms of flight control in moths. We investigated projections of the wing mechanosensory afferents in the central nervous system (CNS) of the hawkmoth, Agrius convolvuli, because the mechanosensory proprioceptive feedback has an essential role for flight control and would be presumably optimized for insect species. We conducted anterograde staining of nine afferent nerves from the fore- and hindwings. All of these afferents projected into the prothoracic, mesothoracic and metathoracic ganglia (TG1, 2 and 3) and had ascending fibers to the head ganglia. Prominent projection areas in the TG1-3 and suboesophageal ganglion (SOG) were common between the forewing, hindwing and contralateral forewing afferents, suggesting that information from different wings are converged at multiple levels presumably for coordinating wing flapping. On the other hand, differences of projections between the fore- and hindwing afferents were observed especially in projection areas of the tegulae in the TG1 and contralateral projections of the anterior forewing nerve in the TGs and SOG, which would reflect functional differences between corresponding mechanoreceptors on each wing. Afferents comprising groups of the campaniform sensilla at the wing bases had prominent ascending pathways to the SOG, resembling the head-neck motor system for gaze control in flies. Double staining of the wing afferents and flight or neck motoneurons also indicated potential connectivity between them. Our results suggest multiple roles of the wing proprioceptive feedback for flight and provide the anatomical basis for further understanding of neuronal mechanisms of the flight system in moths.

journal_name

J Insect Physiol

journal_title

Journal of insect physiology

authors

Ando N,Wang H,Shirai K,Kiguchi K,Kanzaki R

doi

10.1016/j.jinsphys.2011.08.002

subject

Has Abstract

pub_date

2011-11-01 00:00:00

pages

1518-36

issue

eissn

0022-1910

issn

1879-1611

pii

S0022-1910(11)00224-1

journal_volume

pub_type

杂志文章

在线工具

Central projections of the wing afferents in the hawkmoth, Agrius convolvuli.