A LIGHT MICROSCOPIC STUDY ON LARVAL INTEGUMENT CYCLE OF LEPIDOPTERA
Küçük Resim Yok
Tarih
2018
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
PARLAR SCIENTIFIC PUBLICATIONS (P S P)
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
The cycle of sixth instar larval integument of a Lepidoptera example, Galleria mellonella (Linnaeus, 1758) (Lepidoptera: Pyralidae) was investigated by light microscopy. Two phases of larval integument change of G. mellonella larvae were observed via histological and histometrical measurements performed over 12-108 hours. The first of these phase changes was observed between 12 and 84 hours with changes to epidermal cells and procuticle formation resulting in interzone cuticle. The second phase change occurred in cuticle and epidermal cells with digestion of the old procuticle and formation of a new procuticle, which was observed between 96 and 108 hours commencing with apolysis at 96 hours. During the first period complete epicuticle formation was detected at 12 hours, the development of procuticle continued with lamellae addition between 12 and 84 hours. The procuticle development was completed with formation of the interzone cuticle at 84 hours. Epidermal cells underwent mitosis at 72 hours and at 84 hours formed the interzone cuticle by secreting a small quantity of seventh instar cuticle. In the second stage, apolysis occurred at 96 hours. The observed effects of molting fluid were, firstly, the separation of endocuticle lamellae, followed by their dissolution and, finally, absorption by epidermal cells. The procuticle thickness decreased from 16.9 mu m to 7.5 mu m at this stage. Epidermal cells took on a prismatic shape at this stage and started to form seventh instar epicuticle and procuticle.
Açıklama
Anahtar Kelimeler
Ecdysis, Integument cycle, G. mellonella, Lepidoptera, LM
Kaynak
FRESENIUS ENVIRONMENTAL BULLETIN
WoS Q Değeri
Q4
Scopus Q Değeri
N/A
Cilt
27
Sayı
10
