We use Optical Character Recognition (OCR) during our scanning and processing workflow to make the content of each page searchable. You can view the automatically generated text below as well as copy and paste individual pieces of text to quote in your own work.
Text recognition is never 100% accurate. Many parts of the scanned page may not be reflected in the OCR text output, including: images, page layout, certain fonts or handwriting.
— 817 —
Subsequently the various stages of development of the bacteroides, of normally formed bacteria and of bacteria rich in reserve substances, previous to the emptying of the tubercles.
The Bacterium radicocolo, in pure, solid and liquid stages, should be shown.
Leguminous cultures inoculated with B radicocola and others, not inoculated, and tubercles may also be shown.
Other examples of symbiosis between plants and bacteria may be furnished by bacteriocecides of some tropical Rubiacea and Mirsinacea.
Symbiosis betveen Plants and Animals.
The fly of the olive and the bacteria of olive canker. The localisation of the bacteria in the larva, the plant, the egg. The bacteria will be shown by means of preparations obtained by dissecation, provoking the emptying under the microscope of the organ that contains them. Permanent preparations of different organs harbouring the bacteria. The fly in the act of depositing the egg in the olive. The extraction of the egg from the olive after it has been placed there to show the bacteria surrounding two mycropiles.
Plant diseases produced by symbiont bacteria of insects.
The Dipterous Phorbia fuscipes, its larvae. Depositing of the egg in the soil near potato plants. Hatching of the egg : larva on a potato and the development of the bacteria. Alteration of the tuber produced by bacteria.
Depositing of Phorbia eggs on nutritive agar to show the development of a colony of bacteria after the larva has come out of the egg. Lack of development of the larvae born of eggs sterilised on the exterior, and therefore free from bacteria.
Ants as Fungus Breeders.
Among the Myrmicine the Atta and After sotigma, common in tropical and subtropical Amoerica, are very suitable for film material. Alfred Moeller's interesting work : « The « Pilzgarten » of some South American ants », Buchner's recent : « Animal and Plant Symbiosis », may furnish useful hints in this connection. Nests of various species (Atta hys-trix, A. discigera, A. teccona, ecc), Epigae and hypogae nests. Fungus gardens: how they are formed. Preparation of the substratum of growth in the symbiont fungus. Reproduction and development of the fungus. Characteristic bludgeon swelling, forming the nourishment of the workers and the larvae.
The formation of conides of the fungus in the absence of ants. Pure growths (Rhozites gongylophora).