Research Article | Published: 01 September 1996

Studies on the Neurosecretory Cells and Retrocerebral Endocrine Glands of Common Foerst Bug Lohita grandis Gray (Heteroptera: Pyrrhoecoridae)

S. F. Hasan

Indian Journal of Forestry | Volume: 19 | Issue: 3 | Page No. 272-277 | 1996
DOI: https://doi.org/10.54207/bsmps1000-1996-CQ0IU7 | Cite this article

Abstract

In the brain of Lohita grandis the neurosecretory cells are seen at three places. Mediun group (11-12 cells) of A₁, A₂ and B₁ types situated in each side of the protocerebrum, lateral group (2-4 cells) of A₂ & B₂ types and scattered cells of C, D types in tritocerebrum. The neurosecretory material of median neurosecretory cells is passed through median neurosecretory pathways as NCCI and opens into the aorta, which acts as storage and release organs. Similarly the material of lateral neurosecretory cells is passed through the lateral neurosecretory pathway, NCC II and pours its secretion into corpora cardiac, secreting its own hormone.

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Fig. 1

Fig.1. Topographical distribution of neurosecretory cells and retrocerebral endocrine glands of Lohita grandis (Diagrammatic).

Fig.2. Whole mount showing MNC, MNP, NCC I, AO and Associated endocrine glands (PMVB, X150).

Fig.3. Section passing through pars-intercerebralis medialis of the protocerebrum showing cluster of median neurosecretory cells and their sub types (PF, X-450).

Fig.4. Section passing through pars-intercerebralis medialis and lateralis lobe of the protocerebrum showing median and lateral neurosecretory cells (PF, X150).

Fig.5. Section passing through tritocerebrum and endocrine glands showing NSC in former and different regions in corpora cardiac and its association with corpus allatum (PF, X150).

Fig.6. Section passing through tritocerebrum, Aorta and corpus allatum, showing NSC, NSM in AO and vacuoles in the CA (CAHP, X225).

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How to cite

Hasan, S.F., 1996. Studies on the Neurosecretory Cells and Retrocerebral Endocrine Glands of Common Foerst Bug Lohita grandis Gray (Heteroptera: Pyrrhoecoridae). Indian Journal of Forestry, 19(3), pp.272-277. https://doi.org/10.54207/bsmps1000-1996-CQ0IU7

Publication History

Manuscript Published on 01 September 1996

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