Effects of repeated haemolymph withdrawals on haemocyte counts and moulting in lemon-butterfly, Papilio demoleus L.

نویسندگان

  • J P Pandey
  • R K Tiwari
  • A K Chaubey
چکیده

Total and differential haemocyte counts following repeated haemolymph withdrawals were made in V instar larvae of P. demoleus. While total count showed a steady reduction reaching its lowest in prepupal stage, much variation was observed in the relative percentage of various cell types. Further, the repeated removals of haemolymph from V instar larvae and pupae affected imaginal moulting and lengths of body and wings in adult butterflies.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Haemopoietic organs and effect of their ablation on total haemocyte count in lemon-butterfly, Papilio demoleus L.

The haemopoietic organs in Vth instar larvae of P. demoleus are in the form of thin transparent cellular sheets, closely wrapped around the base of each wing-pad. Three cell types viz; prohaemocytes, plasmatocytes and oenocytoids appear to be derived from these organs and their ablation caused a reduction in cell number which, in turn, revealed that the haemocytes in general are derived both fr...

متن کامل

Immunomodulatory effects of seagrass Halophila ovalis polysaccharide mixed feed in adult black tiger shrimp Penaeus monodon and its protective efficacy against white spot syndrome virus infection

As white spot syndrome virus (WSSV) can be highly pathogenic in penaeid shrimp, various feed supplements have been tested to help to protect farmed shrimp against WSSV disease. Here a polysaccharide extract from Halophila ovalis (HO) seagrass was added to feeds at concentrations of 0.25, 0.5, and 1.0 g[a1] /kg to assess its ability to protect Black Tiger shrimp (Penaeus monodon) against WSSV ch...

متن کامل

The sublethal effects of (2,4-Dichlorophenoxy) acetic acid (2,4-D) on narrow-clawed crayfish (Astacus leptodactylus Eschscholtz, 1823).

2,4-D is a widely used phenoxy herbicide, potentially toxic to humans and biota. The objective of the present study was to reveal short term sublethal effects of 2,4-D on narrow-clawed freshwater crayfish (Astacus leptodactylus Eschscholtz, 1823), based on histology, total haemocyte counts, selected haemolymph parameters, and oxidative stress parameters. In the laboratory conditions crayfish sp...

متن کامل

Immunomodulatory effects of seagrass Halophila ovalis polysaccharide mixed feed in adult black tiger shrimp Penaeus monodon and its protective efficacy against white spot syndrome virus infection

As white spot syndrome virus (WSSV) can be highly pathogenic in penaeid shrimp, various feed supplements have been tested to help to protect farmed shrimp against WSSV disease. Here a polysaccharide extract from Halophila ovalis (HO) seagrass was added to feeds at concentrations of 0.25, 0.5, and 1.0 g[a1] /kg to assess its ability to protect Black Tiger shrimp (Penaeus monodon) against WSSV ch...

متن کامل

Effects of shell disease syndrome on the haemocytes and humoral defences of the edible crab, Cancer pagurus

Crustaceans affected by shell disease syndrome display characteristic black-spot lesions in regions of exoskeletal degradation. Vogan et al. [Dis. Aquat. Org. (2001)] have shown that the severity of shell disease in the edible crab, Cancer pagurus, correlates with an increase in haemocoelic bacterial infections and may therefore serve as an external marker for the internal health of the animal....

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:
  • Indian journal of experimental biology

دوره 41 12  شماره 

صفحات  -

تاریخ انتشار 2003