PHYSIOLOGICAL REGENERATION IN INSECTS

Physiological responses of insects to heat

Postharvest quarantine treatments using high temperatures have been developed for various commodities. There are a wide range of insect pests that are the target of these treatments. In order to make heat treatments effective against these pests, the effects of high temperatures on insect physiology must be understood. Insects, being poikilothermic, are particularly sensitive to heat. Nearly ev...

Of the Conference on Problems in Physiological Regeneration - Ussr

The Physiological Basis of Morphological Polarity in Regeneration. I

1. In Bryophyllum calycinum two apical leaves suppress the shoot formation in all the dormant buds situated basally from the leaf; one apical leaf suppresses the shoot formation in the basal buds situated in the same half of the stem where the leaf is, and, if one-half of the petiole of such a leaf is removed, the growth of basal buds in one quadrant of the stem is suppressed. 2. This inhibitor...

The Physiological Basis of Morphological Polarity in Regeneration. Ii

1. The experiments show that the mass of air roots formed in a stem increases with the mass of the leaf attached to the stem, though it has not been possible to establish an exact mathematical relation between the two masses, owing to unavoidable sources of error. 2. Darkened leaves do not increase the mass of roots formed. 3. In stems suspended horizontally air roots appear on the lower side o...

Diversity and Abundance of Insects in Wukari, Taraba State, Nigeria

A field survey was conducted in Wukari, Taraba State to assess the diversity and abundance of insect species in selected habitats (residential, open field made up of grassland and an agroecosystem). Sampling were done biweekly using light, pitfall and yellow pan traps set in 3 replicates, 30 m apart. Insects recovered were wet preserved in 70% ethanol except butterflies and moths. Representativ...