منابع مشابه
The fine structure of the light organ of the New Zealand glow-worm Arachnocampa luminosa (Diptera: Mycetophilidae).
Thc ruullen dlr t r l lips 01 !he Ma lp igh~rn lubuler 01 the glou-norm Aro~llnoco,rlpo Inrrri,ru\rr con5liluie the Ilghc organ. The \enIra1 and lateral rurlacer are co\ered hy a tracheal 'refleclor' and the nenour supply l o the light organ comer rrom the g'anglion in [he penul~imale segment. Ftne n e r w lerminalr. arons. and glial cellr can he seen i n close pro\imily lo $he haral rurlacc a(...
متن کاملAn enzyme histochemical and electron microscopical study of the light organ of the glow-worm, Lampyris noctiluca.
The light organs of female specimens of the glow-worm Lampyris noctiluca were investigated by enzyme histochemical tests, lipid stains, and electron microscopy. Differences, both histochemical and in fine structure, were found between the cells of the photocyte and reflector layers. The photocytes contained a vesiculated reticulum, photocyte granules, amorphous granules, and numerous mitochondr...
متن کاملRedescription and relationships of Pseudothilmanus Pic (Coleoptera: Rhagophthalmidae)—a long-term neglected glow-worm beetle genus from the Himalayas
Pseudothilmanus Pic, 1918 is redescribed and two species, P. alatus Pic, 1918 and P. marginatus Pic, 1918, are placed in the genus. The subgenus Drilothilmanus Pic, 1918 is synonymized with the nominotypical genus on the basis of low morphological divergence and redundancy in classification. Pseudothilmanus is newly classified in the family Rhagophthalmidae, in contrast to the original placemen...
متن کاملColour vision in the glow-worm Lampyris noctiluca (L.) (Coleoptera: Lampyridae): evidence for a green-blue chromatic mechanism.
Male glow-worms Lampyris noctiluca find their bioluminescent mates at night by phototaxis. There is good evidence that location of mates by lampyrid beetles is achieved by a single spectral class of photoreceptor, whose spectral sensitivity is tuned to the bioluminescent spectrum emitted by conspecifics, and is achromatic. We ask whether glow-worm phototaxis involves interactions between two sp...
متن کاملThe Healthy Glow of Carrots
We have probably all heard that carrots are good for our health, particularly for our eye health. This is primarily due to the very high levels of vitamin A and its natural precursor, beta-carotene, in carrots. In fact, a single cup of carrots has been reported to provide over 650% of our daily needs for vitamin A, which is simply amazing. In addition to being rich in vitamin A, carrots are a v...
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ژورنال
عنوان ژورنال: Nature
سال: 1876
ISSN: 0028-0836,1476-4687
DOI: 10.1038/013188a0