Abstracts:
PRESENTER 1: Mr. Sasi Kiran Kanchi (PhD Student)
TOPIC: Isolation and identification of polyethylene degrading microorganisms.
ABSTRACT: Polyethylene (PE) is a commonly used plastic because of its attractive physical and mechanical properties. This polymer was considered to be resistant to biodegradation. However, recent studies have shown that PE is subject to biodegradation, albeit at slow rates, and a number of fungal and bacterial species were isolated that displayed capability to degrade PE. To further understand the microbiological factors involved in the biodegradation of PE, the current work will focus on the isolation and identification of microorganisms, particularly fungi, that have the capacity to degrade PE. The enzymes responsible for this activity will also be purified and characterised.
PRESENTER 2: Dr. Zahid Shah (Visiting Post-doctoral Fellow)
TOPIC: Scanning & transmission electron microscopy of the antennal sensilla of the parasitoid wasp, Venturia canescens.
ABSTRACT: Scanning electron microscopy studies revealed nine types of antennal sensilla of parasitoid wasp, Venturia canescens. Five of these sensillar types, named bent-tipped basiconic sensilla, fluted basiconic sensilla, thin plate sensilla, thick plate sensilla and smooth basiconic sensilla are chemorecepters. The remaining four types of sensilla named chaetic sensilla, coeloconic sensilla, campaniform sensilla and trichoid sensilla are non-chemoreceptors. The morphology of these sensilla viewed with scanning electron microscope was related to the histology observed using transmission electron microscope. The morphology, histology, abundance and distribution of these sensilla were related to their function regarding host location and oviposition behaviour of the insect.
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